The Policy builds on several core regulatory concepts that determine its effect and implementation.

• BASIX development and BASIX optional development: the Policy adopts the Environmental Planning and Assessment Regulation 2021 definitions for BASIX development and BASIX optional development (Sch 4). Schedule 1 sets the standards that apply to those classes, and Schedule 2 supplies standards for alterations and pools.
• Baseline and per‑occupant metrics: the Planning Secretary must publish a baseline greenhouse gas emissions figure (per occupant per year), a baseline average daily mains-supplied potable water use (per occupant per year), and standard occupancy rates (Schedule 1, Part 1, s 1(1)). The energy and water standards are expressed as percentage reductions below those baselines (Schedule 1, Part 1, ss 2-3 and Table 1; Water Use Map linkage).
• Embodied emissions quantified and approved BASIX system: development to which Schedule 1 applies must have embodied emissions quantified using an approved BASIX system before the consent authority grants development consent (s 2.1(5)). The Policy defines embodied emissions in Sch 4 as lifecycle emissions from extraction, transport and manufacture of building materials. The requirement converts embodied emissions into a quantification and reporting obligation tied to a state-approved methodology or tool.
• Preclusion of conflicting local controls: s 2.2 renders competing provisions of other EPIs or DCPs “of no effect” to the extent they seek to reduce potable water consumption or GHG emissions related to building use, improve thermal performance, or quantify and report embodied emissions. The definition of “competing provision” is specific and includes development standards, matters to be considered by consent authorities, satisfaction tests, and conditions imposed on consents (s 2.2(3)). Two specific carve-outs apply: (a) it does not displace provisions that apply to non-residential parts of BASIX development that will not be used for residential purposes, and (b) it does not apply to competing provisions that encourage measures beyond the Policy’s required measures (s 2.2(2)).
• Climate zoning and Water Use Map: the Policy uses climate-zone maps (Sch 4) to allocate different percentage reductions (Table 1) and thermal standards (Tables 2-4) and links water standards to an official Water Use Map (Schedule 1, Part 1, s 3; Sch 4 definitions).
• Thermal performance quantified in energy units: Part 2 of Schedule 1 sets thermal performance standards as maximum energy for heating and cooling measured in megajoules per square metre of conditioned floor area per year (Sch 1, Part 2, s 4). Schedule 2 provides R-value minima for insulation upgrades in alterations (Sch 2, Part 2, ss 5-7).
• Large commercial NABERS standards and NABERS commitment agreements: Schedule 3 prescribes NABERS star ratings as the standard for energy and water for large commercial development (Schedule 3, ss 1-2). A NABERS commitment agreement counts as evidence that the development is capable of achieving the standard (s 3.3(3)).
• Administrative oversight and review: the Planning Secretary publishes baselines and standard occupancies, keeps maps electronically for public access (s 1.6; Schedule 1, s 1(1)), and reviews development standards as directed (s 1.7).

Each of these concepts converts technical sustainability metrics into planning preconditions and standards, with implementation reliant on executive publication of baselines and maps, and on consent authorities’ satisfactions as the principal enforcement mechanism (see s 2.1(5), s 3.2(2), s 3.3(2)).

The Policy alters obligations and decision points for a range of actors in the planning, development and building sectors. Who is affected, and how, is determined by the Policy’s scope and thresholds.

• Developers and building owners:
  • Residential developers carrying out BASIX development and BASIX optional development are directly affected by Schedule 1 standards (Schedule 1, s 2.1). For such developments, energy and water percentage reductions, thermal performance limits, and the embodied emissions quantification requirement are mandatory prerequisites for consent in relevant cases (s 2.1(5); Sch 1).
  • Owners/developers of non-residential development: Chapter 3 applies to non-residential development that is not residential accommodation and meets cost thresholds: new buildings with estimated development cost of $5 million or more, or alterations/extensions with estimated cost of $10 million or more (s 3.1(1)). Those projects must meet the embodied emissions quantification requirement (s 3.2(2)) and the consent authority must consider specified design measures (s 3.2(1)). Large commercial development (as defined in Sch 4) has additional NABERS-based standards (s 3.3; Sch 3).
  • Where development includes prescribed serviced apartments, some exemptions in s 3.3(4) are displaced and s 3.3 applies (s 3.3(5)).
• Consent authorities (local councils and other consent bodies):
  • Must refuse or not grant consent if the statutory satisfactions are not met: for BASIX development covered by Schedule 1, a consent cannot be granted unless embodied emissions have been quantified with an approved BASIX system (s 2.1(5)). For non-residential developments covered by Chapter 3, consent cannot be granted unless embodied emissions have been quantified (s 3.2(2)). For large commercial development, consent cannot be granted unless the authority is satisfied the development is capable of achieving Schedule 3 energy and water standards (s 3.3(2)).
  • Must consider specific design outcomes for minimising waste, reducing peak electricity demand, passive design, renewable energy, metering/monitoring and minimising potable water (s 3.2(1)).
  • Must consider minimising on-site fossil fuels for large commercial development and certain State significant development (s 3.3(1); s 3.4(2)).
• Planning Secretary and Minister:
  • The Planning Secretary must publish baseline greenhouse gas and water-use figures and occupancies on the NSW planning portal (Sch 1, Part 1, s 1(1)) and must review the Policy’s development standards from 2025 and every three years thereafter (s 1.7).
  • The Minister approves named maps adopted by the Policy (s 1.6(1)(a)), and the maps must be kept in electronic form for public access (s 1.6(3)).
• Professional advisers, certifiers and specialised assessors:
  • Must prepare and validate embodied emissions quantifications using an approved BASIX system (s 2.1(5); Sch 4 definition of embodied emissions) and provide evidence of capability to meet NABERS standards (s 3.3(3)).
  • Building designers and engineers will need to incorporate specific thermal, glazing and insulation standards (Schedule 1 Part 2; Schedule 2 Part 2).
• Suppliers and trades:
  • Manufacturers and suppliers of building materials and systems that meet specified R-values, double glazing, rainwater tanks and WELS-rated fittings will be in demand. Schedule 2 prescribes acceptable hot-water systems and minimum lighting bulb types (Sch 2, Part 1, ss 2-3).
• Local planning instruments and councils:
  • Local EPIs and DCPs that contain “competing provisions” within the specified sustainability topics are rendered of no effect to that extent (s 2.2). That changes the set of standards councils can require in these specific areas and centralises those requirements in the Policy.

Who pays and who decides: developers pay for additional design, materials, embodied-emissions assessments and possible NABERS commitments; consent authorities decide whether statutory satisfactions are met and therefore whether consent can be granted (s 2.1(5); s 3.2(2); s 3.3(2)). The Planning Secretary and Minister control the published baselines, maps and the identification of approved BASIX systems, creating implementation discretion (Schedule 1, s 1(1); s 1.6; s 1.7).

The Policy imposes duties primarily on developers, consent authorities and the Planning Secretary, and conveys certain rights or entitlements through the planning consent process.

Duties on developers and applicants

• Quantify embodied emissions for relevant developments: For all development to which Schedule 1 applies, development consent must not be granted unless the consent authority is satisfied the embodied emissions attributable to the development have been quantified using an approved BASIX system (s 2.1(5)). Sch 4 defines “embodied emissions” narrowly to include extraction, transportation to manufacture and the manufacture process for materials used to construct the building.
• Meet energy, water and thermal standards: BASIX development must meet the energy-use percentage reductions in Schedule 1 Table 1 and the water-use percentage reductions as shown on the Water Use Map (Schedule 1, ss 2-3 and Table 1). Thermal performance standards (maximum MJ/m2/year) apply under Schedule 1 Part 2 (ss 4-7 and Tables 2-4).
• For alterations, pools and fittings: comply with the prescriptive requirements in Schedule 2 , WELS ratings or maximum flow rates for toilets/showers/taps (Sch 2, Part 1, s 1), specified hot-water system types (Sch 2, Part 1, s 2), that at least 40% of lighting fixtures use fluorescent/compact fluorescent/LED bulbs (Sch 2, Part 1, s 3), and pool tank/cover/rainwater system requirements linked to the Water Use Map (Sch 2, Part 1, s 4).
• For large commercial development: ensure design is capable of achieving specified NABERS ratings (Schedule 3, s 1) and water rating (Schedule 3, s 2); evidence via a NABERS commitment agreement meets the Policy’s test for capability (s 3.3(3)). Consent cannot be granted unless the consent authority is satisfied the development can achieve Schedule 3 standards (s 3.3(2)).
• Consider minimising on-site fossil fuel usage: design large commercial and certain State significant development to minimise on-site fossil fuels as part of achieving net zero by 2050, which consent authorities must consider (s 3.3(1); s 3.4(2)). Note that “on-site fossil fuels” is defined to exclude back-up electricity generators (s 1.4(2)).

Duties on consent authorities

• Require evidence and be satisfied before granting consent: Consent authorities must be satisfied specific quantifications or capabilities exist before granting consent , notably embodied emissions quantified with an approved BASIX system for Schedule 1 development and non-residential development (s 2.1(5); s 3.2(2)), and capability to achieve Schedule 3 NABERS standards for large commercial development (s 3.3(2)).
• Consider specified design matters: For non-residential development, consent authorities must consider minimisation of demolition/construction waste, reduction of peak electricity demand, passive design to reduce artificial heating/cooling and lighting reliance, renewable energy generation and storage, metering and monitoring energy consumption, and minimising potable water consumption (s 3.2(1)).
• Consider minimising on-site fossil fuels for large commercial and State significant development (s 3.3(1); s 3.4(2)).
• Apply exceptions and heritage considerations: Schedule 1 standards do not apply to development involving heritage items or within a heritage conservation area where the Planning Secretary is satisfied the development cannot achieve a standard because of other development controls (s 2.1(4)).

Duties on the Planning Secretary and Minister

• Publish baselines and occupancies on the portal: The Planning Secretary must publish baseline greenhouse gas emissions, baseline water-use figures and standard occupancy rates on the NSW planning portal on or before 1 October 2023 (Schedule 1, Part 1, s 1(1)).
• Maintain maps: Named maps adopted by the Policy must be kept electronically and made available for public access subject to Ministerial-approved arrangements; the Minister approves maps when adopted (s 1.6).
• Review standards periodically: Planning Secretary must review the development standards as soon as practicable after the start of 2025 and at least once every three years (s 1.7).

Rights and entitlements

• Right to rely on transitional protections: Applicants with development applications, complying development certificates, BASIX certificates or modification applications lodged before the commencement or in certain timing windows benefit from savings and transitional provisions in s 4.2.
• Right to meet standards by commitment agreements: For large commercial development, the Policy recognises NABERS commitment agreements as sufficient evidence of capability to meet energy standards (s 3.3(3)), providing a compliance pathway short of delivering a final rating at the time of consent.
• Local authorities’ entitlement to be precluded from imposing inconsistent requirements: Where the Policy’s standards apply, local EPIs and DCPs that are “competing provisions” within the enumerated sustainability topics cannot be enforced to the extent of inconsistency (s 2.2).

Procedural mechanics

• Approval and approval-of-systems: The Policy refers to an “approved BASIX system” as the required method for quantifying embodied emissions (s 2.1(5)), and to published baselines and maps as central reference points (Schedule 1, Part 1, s 1; s 1.6). The instrument therefore places duties on the executive to provide the operational tools and metrics that market participants and consent authorities must use.

The Policy transforms technical sustainability measures into enforceable preconditions in the planning consent regime, shifting duties for measurement, design and evidence onto applicants and assessment duties onto consent authorities and the Planning Secretary.

The Policy itself sets out standards and preconditions for the grant of development consent; it does not, within the text provided, create express criminal offences or civil penalty provisions tied to breaches of the Policy text. Enforcement is effected principally through planning consent processes and the interaction of the Policy with the Environmental Planning and Assessment Act 1979 (the Act), rather than by standalone penalty clauses inside the Policy. Important enforcement-related mechanisms in the Policy are the following.

• Consent preconditions and satisfactions:
  • The Policy makes fulfilment of specified certainties and quantifications a precondition of consent. For example, development consent must not be granted to development to which Schedule 1 applies unless the consent authority is satisfied the embodied emissions have been quantified using an approved BASIX system (s 2.1(5)). Similarly, development consent must not be granted to non-residential development unless embodied emissions have been quantified (s 3.2(2)), and development consent must not be granted to large commercial development unless the consent authority is satisfied the development is capable of achieving Schedule 3 energy and water standards (s 3.3(2)). As a practical matter, refusal or conditioned granting of consent is the primary control tool.
• Administrative evidence requirements:
  • The Policy requires applicants to provide quantifications or evidence (e.g., NABERS commitment agreements) that consent authorities must accept as sufficient to be “satisfied” the standard can be met (s 3.3(3)). The Policy therefore channels enforcement into evidentiary assessments performed by consent authorities at the point of determination.
• Displacement of competing local provisions:
  • s 2.2 renders certain local provisions “of no effect” to the extent they conflict with the enumerated sustainability aims. That changes the permissible content of local consent conditions and standards, constraining enforcement options local authorities might otherwise impose.
• No express penalties in the Policy text provided:
  • The Policy text supplied does not specify monetary fines, infringement notices, civil penalty provisions or criminal offences for non-compliance with the Policy’s substantive standards. It relies on the statutory planning process and existing compliance and enforcement mechanisms under the Act and associated regulations to give effect to its requirements. That means enforcement actions such as stop-work orders, compliance notices, penalty notices or prosecution would have to proceed under other statutory heads in the Act or related legislation, not directly under an express penalty regime inside the Policy (the Policy does not include a clause setting out sanctions).
• Implementation discretion and administrative oversight:
  • The Policy requires the Planning Secretary to publish baselines and maps and to maintain or approve an “approved BASIX system” for embodied-emissions quantification (Schedule 1, Part 1, s 1(1); s 2.1(5); s 1.6). The absence of detailed prescription of the approval process in the Policy text supplied means the executive’s administrative design of publication, approval and technical guidance will be central to enforcement. That is, consent authorities will depend on the tools and published baselines provided by the Planning Secretary and ministerially approved maps to determine compliance.

Practical enforcement implications

• The real enforcement lever is refusal to grant consent and the imposition of conditions attached to consent. Because the Policy conditions the ability to obtain consent on demonstrable measures and quantified outcomes, the immediate enforcement consequence of non-compliance is an inability to obtain lawful development consent for affected projects (s 2.1(5); s 3.2(2); s 3.3(2)).
• Post-consent compliance and monitoring are not detailed in the Policy text provided. The Policy prescribes metering and monitoring as matters consent authorities must consider (s 3.2(1)(e)), and NABERS commitment agreements are recognised (s 3.3(3)), but the instrument does not set out an ongoing regulatory monitoring regime, audit processes, or sanctions for failing to achieve outcomes after consent is granted.

In short, the Policy embeds sustainability standards into consentability, shifting enforcement to the determinations of consent authorities supported by the Planning Secretary’s published baselines and approved assessment systems. The Policy text provided does not provide its own penalty schedule; compliance is enforced through the planning consent gateway and administrative evidentiary requirements.

The Policy explicitly cross-references and changes the application of a number of other statutory instruments and planning instruments. The text prescribes the following interactions.

• Relationship with other environmental planning instruments:
  • The Policy prevails over other environmental planning instruments to the extent of any inconsistency (s 1.5). That creates a clear statutory primacy of the Policy for the sustainability topics it governs.
• Displacement of competing local provisions:
  • s 2.2 makes a competing provision in an EPI or DCP “of no effect” to the extent it aims to reduce potable water consumption, reduce greenhouse gas emissions related to building use, improve thermal performance, or quantify and report embodied emissions. The Policy thereby constrains local instrument drafting and the exercise of local planning discretion in those specific sustainability areas. The definition of “competing provision” is comprehensive and includes development standards, matters for consent consideration, satisfactions, and consent conditions (s 2.2(3)).
  • Two exceptions preserve local authority: the section does not displace provisions that apply to non-residential parts of BASIX development that will not be used for residential purposes, and it does not displace competing provisions that encourage the adoption of measures beyond the Policy’s required minimums (s 2.2(2)). Those exceptions leave room for local incentives and aspirational requirements above the Policy’s baseline but prevent conflicting mandatory local standards.
• Interaction with the Environmental Planning and Assessment Act and Regulation:
  • The Policy uses definitions and mechanisms from the Act and the Environmental Planning and Assessment Regulation 2021 (s 1.4(1); Sch 4). For example, BASIX development is defined by reference to the Regulation, and “estimated development cost” references the Regulation’s meaning (Sch 4).
  • The Policy’s consentability mechanisms (i.e., “development consent must not be granted unless…”) operate through the existing decision-making powers and processes under the Act. The Policy therefore integrates with the Act’s application and the standard administrative review and appeal pathways in the planning regime (note: the Policy text provided does not alter judicial review rights; those remain governed by the Act and general administrative law).
• Standard Instrument, Interpretation Act and other statutes:
  • The Policy provides that words used have the same meaning as in the Standard Instrument (Local Environmental Plans) Order 2006 unless otherwise defined (s 1.4(3)). It also points readers to the Act and the Interpretation Act 1987 for supplementary interpretive provisions (s 1.4(1) Note).
  • It references Commonwealth law for WELS ratings under the Water Efficiency Labelling and Standards Act 2005 for the potable-water efficiency measures in Schedule 2 (Sch 2, Part 1, s 1 Note).
• Repeal of State BASIX and transitional continuity:
  • The Policy expressly repeals the earlier BASIX SEPP 2004 (s 4.1). Section 4.2 contains savings and transitional provisions that preserve the effect of BASIX certificates and development applications lodged before certain dates, and stages in the application of specific provisions (s 4.2(1), (4)).
• NABERS and industry schemes:
  • The Policy relies on NABERS ratings as an express metric and compliance pathway for large commercial development (Schedule 3). It recognises NABERS commitment agreements as an acceptable demonstration of capability (s 3.3(3)), integrating an industry scheme into planning requirements.
• Ministerial approval of maps and the executive’s role:
  • The Policy requires the Minister to approve any named maps adopted by the Policy (s 1.6(1)), and those maps are binding references for location-dependent standards such as climate zones and the Water Use Map (Sch 4 definitions). This places a procedural gate for map changes through ministerial or instrument-making processes.

The interaction pattern is therefore: the Policy inserts itself as a state-level mandatory overlay for particular sustainability outcomes, displaces inconsistent local mandatory clauses on those specific topics, ties in defined industry measurement schemes (NABERS, WELS) and delegates operational detail (baselines, approved BASIX system, maps) to executive publication and approval processes, while relying on the Act’s existing consent and enforcement mechanisms.

The Policy text as supplied includes amendment footnotes that record several legislative amendments and the Policy’s lifecycle events. The key timeline and recorded amendment notes are the following.

• Commencement: the Policy commenced on 1 October 2023 (s 1.2). This is the initial operative date for the Policy.

• Repeal of BASIX 2004: s 4.1 repeals the State Environmental Planning Policy (Building Sustainability Index: BASIX) 2004. The Policy therefore replaces the earlier BASIX instrument from commencement.

• Amendments and notes in the margins:

  • s 2.1 is annotated with an amendment note: "s 2.1: Am 2025 (599), Sch 1[1]-[3]." That indicates recorded amending instrument activity in 2025 affecting s 2.1 (the schedule and clause numbering in the supplied text retains the annotation). The substance of that amendment is not reproduced in the Policy text other than the footnote reference.
  • s 3.1 carries amendment notes: "s 3.1: Am 2023 (523), Sch 2.7[1]; 2023 (537), Sch 1[1]." Those references indicate amendments in 2023 to the application of Chapter 3, presumably contemporaneous with or following commencement.
  • s 3.3 is annotated "s 3.3: Am 2023 (421), Sch 1." s 3.4 annotated "s 3.4: Am 2023 (537), Sch 1[2]." These entries indicate multiple 2023 amending instruments or schedules.
  • s 4.2 carries a note: "s 4.2: Subst 2023 (537), Sch 1[3]. Am 2024 (115), Sch 2.4[1] [2]; 2025 (599), Sch 1[4]." This records that s 4.2 was substituted in 2023 and further amended in 2024 and 2025. The text in s 4.2 includes transitional provisions with dates and staged application, referring to these amendments.
  • Sch 4 notes: "sch 4: Am 2023 (523), Sch 2.7[2] [3]." That records amendments to the Dictionary in 2023.

• Internal procedural amendments:

  • The Planning Secretary’s duty to review development standards is set out in s 1.7, which requires a first review as soon as practicable after the start of 2025 and at least once every three years thereafter. This clause institutionalises periodic review and potential amendment triggers.
  • Schedule 1 required the Planning Secretary to publish baselines on or before 1 October 2023 (Sch 1, Part 1, s 1(1)), making the baselines and standard occupancy rates an administrative input to the Policy from commencement.

The Policy’s amendment footnotes indicate a series of legislative and subordinate-law amendments carried out in 2023, continuing into 2024 and 2025. The supplied text does not provide the full text of the amending instruments, only the statutory references. Practitioners should consult the consolidated instrument on the NSW legislation website and the cited amending instruments to trace the precise changes reflected by the footnote citations (for example, Am 2025 (599), Sch 1[1]-[3]; Am 2024 (115), Sch 2.4[1][2]; Am 2023 (523), Sch 2.7[1-3]; Am 2023 (537), Sch 1[1-3] and Sch 1[2]).

Points to note for practitioners:

• The Policy itself builds in a statutory review timetable (s 1.7), signalling possible future changes to the development standards from 2025 onwards.
• Transitional provisions in s 4.2 have been the subject of amendment, reflecting staged implementation and protections for applications and BASIX certificates issued prior to commencement; the exact boundaries for transitional protections are set out in s 4.2 as substituted and amended.
• The dictionary (Schedule 4) has recorded amendments; definitions are critical to when and how the standards apply, so checking the consolidated dictionary (and the amending instrument references) is essential.

Always verify the current consolidated text on the NSW legislation website and the cited amending instruments when advising clients, because the Policy includes numerous amendment footnotes referring to instruments in 2023-2025.

The Policy text provided does not include or refer to any court decisions or litigious outcomes applying or interpreting the Policy. The instrument itself contains no case citations, and there are no judicial determinations, tribunal decisions or appeal outcomes recorded within the supplied text.

What the Policy supplies that will likely affect litigation risk and administrative review

• New justiciable satisfactions and measurement requirements: The Policy requires consent authorities to be “satisfied” that embodied emissions have been quantified using an approved BASIX system (s 2.1(5); s 3.2(2)) and that large commercial development is capable of achieving NABERS standards (s 3.3(2)). Those satisfactions create potential grounds for merits review or judicial review if a developer claims procedural unfairness or that the authority misapplied or ignored the Policy’s requirements. The supplied text does not state appeal routes, but existing appeal and review mechanisms under the Act and administrative law will be the venues for such disputes.
• Centralisation of standards: s 2.2’s displacement of competing local provisions may give rise to disputes where councils and applicants disagree about whether a local provision is a “competing provision” and therefore of no effect. That definitional question , whether a local clause “aims” at the enumerated sustainability outcomes , is potentially reviewable and could become the subject of litigation.
• Reliance on published baselines and approved systems: The Policy delegates technical detail to the Planning Secretary (published baselines, approved BASIX system) and to NABERS commitment agreements (s 3.3(3)). Disputes may arise over the validity, adequacy, or application of those published instruments or tools. The supplied text does not specify appeals for decisions about whether a BASIX system is “approved” or how baselines were set.

Absence of precedent in the supplied text

• Because no cases or decisions are cited in the Policy text, there is no litigation history recorded here. Any litigation to date (if it exists) is not captured in the instrument excerpt provided. Practitioners should search case law databases and the NSW Land and Environment Court decisions for any proceedings involving the Policy once it has been in force and applied.

For now, the available record in the Policy suggests legal exposure is likely to centre on administrative review of consent decisions, the interpretation of “competing provision” under s 2.2, the sufficiency of embodied-emissions quantification and the implementation of NABERS commitment agreements as evidence of capability. Those are areas to watch as the Policy is applied and as disputes emerge.

Several specific drafting features and transitional mechanics create practical pitfalls for practitioners, developers and consent authorities. The following “gotchas” are grounded in the Policy text and identify places where implementation or interpretation risk can materialise.

1. Embodied emissions quantification is a precondition but the approval process is not set out

• The Policy requires embodied emissions to be quantified using an “approved BASIX system” before consent can be granted for Schedule 1 development (s 2.1(5)). The Policy text does not specify the approval mechanism, procedural timeline, or appeal route for that approval, nor does it set out the technical standard to be used. Practical consequence: applicants must rely on executive instruments, published guidance and the Planning Secretary’s tools to know what counts as “approved”, which introduces administrative dependency and potential uncertainty.

2. Displacement of local provisions is limited but written broadly

• s 2.2 renders competing provisions of EPIs and DCPs “of no effect” where they aim at specific sustainability outcomes. The definition of “competing provision” is wide (it includes standards, matters to be considered, satisfactions and conditions) (s 2.2(3)). Risk: disputes about whether a local clause “aims” at the enumerated matters could lead to litigation or inconsistent local practice. Two carve-outs exist (s 2.2(2)), but determining applicability in mixed-use projects or where parts of a site are non‑residential may be factually complex.

3. Transition windows and BASIX certificates

• s 4.2 contains several transitional exemptions for development applications, complying development certificates and BASIX certificates lodged or issued before particular dates. Practical risk: errors in timing or in which instrument accompanies an application may result in unexpected application of the new standards. For example, a BASIX certificate issued before 1 October 2023 can carry forward for an application lodged on or after 1 October 2023 (s 4.2(1)(c)-(d)), but the Policy also introduces staged application of s 2.1(1) from 1 October 2024 in certain contract contexts (s 4.2(4)). Those time‑sensitive rules require careful file records and tracking.

4. “On-site fossil fuels” excludes back-up generators

• The Policy requires consent authorities to consider minimising the use of on-site fossil fuels for large commercial and certain State significant development to pursue net-zero by 2050 (s 3.3(1); s 3.4(2)). However, the Policy defines the use of on-site fossil fuels as not including the use of back-up electricity generators (s 1.4(2)). Practical consequence: a development could still include back-up diesel or gas generator capacity without being treated as using on-site fossil fuels for the purposes of that consideration, which narrows the scope of the obligation.

5. Heritage and other development controls can exempt Schedule 1 standards

• Schedule 1 standards do not apply, to the extent the Planning Secretary is satisfied, where heritage factors or other development controls make achieving a standard impossible (s 2.1(4)). That creates a discretionary exemption pathway and a potentially litigable fact‑situation where applicants claim impossibility on heritage grounds and authorities must make a satisfaction judgement.

6. Local exceptions for certain Sydney LEPs for energy use

• s 3.3(4) exempts large commercial energy-use requirements for land subject to specified Sydney Local Environmental Plans, while s 3.3(5) preserves the standard for prescribed serviced apartments. Practitioners dealing with development in those LEPs must be careful to apply the exception correctly in mixed-purpose projects and verify whether serviced apartment elements are “prescribed” under Sch 4.

7. Complexity of climate-zone and map dependency

• Many numeric standards depend on climate zones and the Water Use Map (Sch 4 definitions; Schedule 1, Part 1, s 2 and s 3). Developers must use the correct map version and check for updates approved by the Minister, as s 1.6 contemplates maps may be amended or combined and must be kept electronically for public access (s 1.6(1)-(3)). Risk arises if the wrong map or an out-of-date baseline is used in an embodied-emissions or energy calculation.

8. Prescriptive technical requirements for alterations and pools

• Schedule 2 contains detailed, prescriptive technical requirements (WELS star ratings, flow rates, specified hot-water systems, rainwater tank sizing tied to evaporation/refill losses for pools) (Sch 2, Part 1). Failure to specify these precisely in documentation or to install compliant equipment will affect whether a complying development certificate or consent is granted.

9. No express penalties inside the Policy text

• Because the Policy does not include express penalties or a monitoring/audit regime in the text provided, enforcement depends on consent processes and other provisions of the Act. Practitioners cannot point to a specific penalty table inside the Policy; any sanctions for post‑consent failure to achieve outcomes will use other statutory enforcement heads.

10. Review timetable implies standards can change

• s 1.7 requires review after the start of 2025 and at least every 3 years. That creates policy and compliance risk for long-term projects, as baselines, percentage reductions or mapping could be updated following review. Contracts and procurement should anticipate possible standard changes.

These gotchas translate into concrete practical safeguards: confirm which BASIX system is “approved” and which baseline/water map edition applies; diarise transitional dates; document embodied‑emissions inputs; and ensure NABERS commitment agreements and design documentation align with the Policy’s satisfactions before lodging applications.

Compliance under this Policy is primarily about satisfying consent authorities that the technical, quantifiable standards and preconditions are met. The steps below are practical, sequenced tasks derived from the Policy text for applicants and advisers.

1. Determine whether the Policy applies to your project

• For residential projects: confirm whether the development is BASIX development or BASIX optional development as defined in the Environmental Planning and Assessment Regulation 2021 (Sch 4).
• For non-residential projects: check Chapter 3’s thresholds , the Policy applies to non-residential development other than residential accommodation where erection of a new building has an estimated development cost of $5 million+ or alterations/extensions cost $10 million+ (s 3.1(1)). Identify whether the project qualifies as “large commercial development” under Sch 4 (prescribed office premises, hotels/motels, serviced apartments with size/room thresholds) because Schedule 3 NABERS standards will apply.

2. Check transitional exemptions and timing

• If you lodged a development application, a complying development certificate application, a BASIX certificate, or modification application before 1 October 2023 (or as otherwise described in s 4.2), confirm which transitional rule applies (s 4.2(1)-(5)). For example, a BASIX certificate issued before 1 October 2023 accompanying an application lodged on or after that date may preserve older requirements (s 4.2(1)(c)-(d)).
• Note the special contractual timing rule in s 4.2(4) that applies from 1 October 2024 for certain BASIX development involving dwelling houses or dual occupancies.

3. Obtain and use published baselines, occupancy rates and maps

• Before preparing sustainability assessments, use the Planning Secretary’s published baseline greenhouse gas emissions and baseline water-use figures and the standard occupancy rates on the NSW planning portal (Schedule 1, Part 1, s 1(1)). Also use the climate-zone maps and the Water Use Map as definitive location-based inputs (s 1.6; Sch 4 definitions). These published figures determine the reductions you must demonstrate under Schedule 1.

4. Quantify embodied emissions using an approved BASIX system

• For development to which Schedule 1 applies, ensure embodied emissions are quantified using the “approved BASIX system” required by s 2.1(5). Arrange for a qualified assessor to prepare an embodied‑emissions report using the approved system. Include the assessor’s certification and the methodology in the development application. Because the Policy requires the consent authority to be satisfied the quantification is done using an approved system, early confirmation of what constitutes an approved system from the Planning Secretary or in the Policy’s technical guidance is recommended.

5. Meet energy and water percentage reduction targets (Schedule 1)

• For BASIX development, calculate per-occupant greenhouse gas emissions from energy use and demonstrate the required percentage reduction versus the published baseline per Table 1 (Schedule 1, Part 1, s 2 and Table 1). For water, demonstrate compliance with the percentage reductions shown on the Water Use Map (Schedule 1, Part 1, s 3). Where multiple percentages could apply, apply the highest applicable percentage (s 2(9) in Schedule 1).

6. For large commercial development, secure NABERS evidence

• For prescribed office premises, hotels/motels and serviced apartments, secure a NABERS commitment agreement or other evidence demonstrating the development is capable of achieving the Schedule 3 NABERS energy/water star ratings (s 3.3(3); Schedule 3, ss 1-2). The consent authority must be satisfied of capability before granting consent (s 3.3(2)).
• If the project is on land subject to the specified Sydney Local Environmental Plans, check whether the energy-use part of s 3.3(2) applies or is displaced by s 3.3(4).

7. Incorporate thermal and insulation standards into design

• For new dwellings subject to Schedule 1 Part 2, design buildings to meet the thermal performance (maximum MJ/m2/year) in the applicable climate zone and dwelling category (ss 4-7 and Tables 2-4).
• For alterations, ensure new walls, floors and ceilings meet the R-value minima in Schedule 2 Part 2 (ss 5-7 and Tables 1-3). Provide R-value calculations and material specifications in the documentation.

8. Apply prescriptive standards for fittings, hot-water systems and pools

• For alterations and pool works, comply with the WELS ratings or flow-rate limits for toilets, showers and taps (Sch 2, Part 1, s 1), acceptable hot-water system types (Sch 2, Part 1, s 2), lighting fixtures conversion (Sch 2, Part 1, s 3) and pool cover/rainwater requirements sized to evaporation and refill losses (Sch 2, Part 1, s 4). Include technical specifications and certification documents in the application.

9. Prepare documentation to satisfy consent authority considerations

• For non-residential development, prepare a design statement addressing minimisation of demolition and construction waste, reduction of peak electricity demand, passive design measures, renewable energy generation and storage options, metering and energy-monitoring provisions, and potable water minimisation (s 3.2(1)).
• For large commercial and State significant development, address minimisation of on-site fossil fuel use in the design justification (s 3.3(1); s 3.4(2)).

10. Engage early with the consent authority and the Planning Secretary

• Early pre-lodgement engagement with the relevant consent authority to confirm evidentiary expectations (e.g., what embodied-emissions output is required, how NABERS commitment agreements will be evaluated) will reduce risk of refusal for failure to be “satisfied”.
• Confirm the edition/date of the Water Use Map and climate-zone map to avoid using superseded baselines or maps (s 1.6; Sch 4).

11. Recordkeeping and contractual protection

• Because standards and baselines will be reviewed periodically (s 1.7) and changes may occur, include contractual protections and risk allocation in construction contracts and procurement documents for long lead-time projects to address possible post-consent standard updates.
• Keep records of the approved BASIX system version used, embodied emissions calculations, NABERS commitment documents and any Planning Secretary correspondence for auditability and to demonstrate compliance to consent authorities.

12. For councils and consent authorities: update local DCP/LEP practice

• Review local EPIs and DCPs for “competing provisions” that may now be of no effect under s 2.2, and update development assessment checklists and determination procedures so that staff apply the Policy’s standards and know when local provisions have been displaced. Where local provisions encourage measures beyond the Policy’s standards, retain them as incentives rather than mandatory conditions, consistent with s 2.2(2)(b).

Following these steps will position applicants to meet the Policy’s preconditions for consent. The practical compliance path is evidence-driven: embodied-emissions quantification using an approved BASIX system, demonstrable energy and water reductions against published baselines, NABERS commitment agreements for large commercial projects, and inclusion of thermal, insulation and prescriptive equipment specifications in the application documentation.