Statutory planning framework
6The subject site is zoned high-density residential R4, under the Ku-ring-gai Local Environmental Plan (Town Centres) 2010. The particular aims of the LEP include, "(c) to provide a variety of housing choice within and adjacent to the centres."
7The consent authority under cl 2.3 must have regard to the objectives for development in a zone when determining a development application. The objectives of the R4 zone are:
+ to provide for the housing needs of the community within a high-density residential environment
+ to provide a variety of housing types within a high-density residential environment.
8In the R4 zone development that is permtited with consent includes: boarding houses; child-care centers; community facilities; dwelling houses; educational establishments; multi-dwelling housing; neighbourhood shops; places of public worship; residential flat buildings; seniors housing; and shop top housing.
9In the LEP cl 4.3 refers to the height of buildings map. For sites less than 1800 sq m, the maximum height is 11.5 m and for sites between 1800 and 2400 sq m, the maximum height is 14.5 m.
10The LEP floor space ratio provisions are contained in cl 4.4 and the objectives are:
(a)to ensure that development density is appropriate for the scale of the different centres within the hierarchy of Ku-ring-gai town centres
(b)to enable development with a built form that is compatible with the size of the name to be developed
(c)to provide an appropriate correlation between the extent of any residential development and the environmental constraints of the site
11The accompanying floor space ratio map shows the subject site with an FSR of 1:1, while the adjoining site zoned R3 is 0.8:1. For a site within the R4 zone, where it has a site area less than 1800 sq m, the FSR is 0.8:1 and where it is between 1800 and 2400 sq m, the FSR is 1:1.
12Part 4 of the LEP at cl 4.6 contains 'principle development standards' provisions for exceptions to development standards:
(1) The objectives of this clause are:
(a)to provide an appropriate degree of flexibility in applying certain development standards to particular development, and to achieve better outcomes for and from development by allowing flexibility in particular circumstances.
(2) Consent may, subject to this clause, be granted for development even though the development would contravene a development standard imposed by this or any other environmental planning instrument. However, this clause does not apply to a development standard that is expressly excluded from the operation of this clause.
(3) Consent must not be granted for development that contravenes a development standard unless the consent authority has considered a written request from the applicant that seeks to justify the contravention of the development standard by demonstrating:
(a) that compliance with the development standard is unreasonable or unnecessary in the circumstances of the case, and
(b) that there are sufficient environmental planning grounds to justify contravening the development standard.
(4) Consent must not be granted for development that contravenes a development standard unless:
(a) the consent authority is satisfied that:
(i) the applicant's written request has adequately addressed the matters required to be demonstrated by subclause (3), and
(ii) the proposed development will be in the public interest because it is consistent with the objectives of the particular standard and the objectives for development within the zone in which the development is proposed to be carried out, and
(b) the concurrence of the Director-General has been obtained.
(5) In deciding whether to grant concurrence, the Director-General must consider:
(a) whether contravention of the development standard raises any matter of significance for State or regional environmental planning and
(b) the public benefit of maintaining the development standard, and
(c) any other matters required to be taken into consideration by the Director-General before granting concurrence.
13Part 6 of the LEP contains additional local provisions and cl 6.1 has particular site requirements for multi-dwelling housing and residential flat buildings as follows:
(1) The objective of this clause is to provide site requirements for development for the purposes of multi dwelling housing and residential flat buildings so as to provide for the orderly and economic development of residential land while maintaining the local character.
(2) Despite any other provision of this Plan, development consent must not be granted for the erection of multi dwelling housing or a residential flat building on a lot in a residential zone unless the lot has one street frontage of at least:
(a) if the area of the land is less than 1,800 square metres - 23 metres, or
(b) if the area of the land is 1,800 square metres or more - 30 metres.
(4) Despite subclause (2), development consent may be granted for the erection of multi dwelling housing or a residential flat building on a battle-axe lot in a residential zone even if the lot does not satisfy those street frontage requirements.
14The LEP contains a number of definitions and relevantly include:
Building height means the vertical distance between ground level (existing) at any point to the highest point of the building, including plant and lift overruns, but excluding communication devices ... and the like.
multi-dwelling housing means 3 or more dwellings (whether attached or detached) on one lot of land (not being an individual lot in a strata plan or community title scheme) each with access at ground level, but does not include a residential flat building. Landscape area means a part of the site used for growing plants, grasses and trees, but does not include any building, structure or hard paved area.
15The Ku-ring-gai Development Control Plan (Town Centres) 2010 contains specific building type controls and general development controls.
16The objectives of the DCP outline the outcomes that proposed developments are required to achieve.
"In order to gain consent, developments need to demonstrate that they have fulfilled the relevant objectives for each element. The design principles illustrate how the objectives may be achieved. The principles are described in diagrammatic form as well as in text and are intended to be indicative rather than controls.
The design controls demonstrate the preferred ways in which the objectives are to be achieved for improving site and building design. The controls focus on building performance -- functionality, form, layout, sustainability and residential amenity. Controls may be varied, provided that it can be demonstrated that the objectives for that particular element have been achieved. "
17The general aims of the DCP are as follows:
(i) establish a future character for Ku-ring-gai's town centers.
(iii) the provision of a range of building types, which provide for increased housing choice ... that contribute to a sustainable vibrant community.
(iv) high-quality sustainable urban design and architectural design of buildings that have a good relationship with neighboring developments, the public domain and landscape qualities of the locality.
(vi) the promotion of the principles of ecologically sustainable development, including water sensitive urban design, climate responsive building design, energy efficiency and selection/use of building materials.
(vii) a high level of residential amenity in building design for the occupants of the building through daylight access, acoustic control, privacy protection, natural ventilation, passive security design, outdoor living, landscape design, indoor amenity and storage provision.
(ix) buildings and landscaping that are designed for all age groups and degrees of mobility.
18Part 2A of the DCP contains provisions for St Ives Town Centre, and this allows an increase in commercial floor space of about 70% to cater for existing and future demand.
19Multi-dwelling housing provisions are contained in pt 3D, and for site layout the objectives are:
(1)to ensure that all developments are sensitive to site attributes, such as streetscape character, existing vegetation and topography.
(2)to achieve a high standard of amenity for future residents and neighbours.
20The controls include:
(1)Site planning is to minimise as far as possible amenity impacts on neighbouring properties and on-site dwellings.
(2)Gun barrel style developments, (with long rows of attached dwellings, long straight driveways and rows of uniform width garden courtyards) are not permitted.
(3)At least one dwelling must address the street.
(4)The preferred layouts for multi-dwelling housing developments are shown in diagrams. (For a site layout with 24 m frontage, shows three attached dwellings with frontage to the street and three dwellings in the rear portion of the site with three dwellings of the opposite orientation. That is, one facing the three dwellings to the front and a centre dwelling and a dwelling facing the rear boundary.)
21The building separation objectives include:
(1)To ensure that new development is scaled to support the desired area character with appropriate massing and spacings between buildings.
(2)To ensure a building configuration that protects and enhances visual and acoustic privacy for occupants and adjacent residents.
(3)To provide building form and layout that minimises overshadowing of adjacent properties and open space.
(4)To provide building configuration that facilitates the provision of usable open space, landscaping and view corridors.
(5)To provide building form and layout that maximises view sharing.
22In the DCP the minimum separation up to the second storey is 3 m between non-habitable rooms and 6 m between rooms and balconies in all other cases. For the third storey, there is a 12 m between habitable rooms and balconies and 7 m between habitable room, balcony and non-habitable room and 3 m between non-habitable rooms.
23The building set back objectives of the DCP include:
(1)To ensure buildings are set within a garden setting dominated by canopy trees which screen the buildings and soften the urban form to maintain the garden character of Ku-ring-gai.
(2)To ensure adequate space between sites to enable effective landscaping and tree planting.
(3)To ensure adequate separation between buildings on different sites for privacy, sun access, acoustic control and natural ventilation.
(4)To provide a transition between certain zones.
24The setback controls to the street are a minimum of 10 m and for side and rear setbacks a minimum of 3 m from any side boundary and where dwellings address site boundaries, a setback must be at least 6 m. The minimum setback to the rear boundary is 6 m and basement car parking areas must be a minimum of 3 m from any side or rear boundary.
25The building setback controls also allow encroachment for ground floor private terraces/courtyards, with a minimum setback of 8 m from the primary street and 3 m from the rear boundary, to allow for deep soil planting within the common areas.
26Ground floor private terraces/courtyards may also encroach into the side setback, provided the deep soil landscaping requirements are met and no more than 15% of the total area of the street setback is to be occupied by private terraces/courtyards. Additional encroachments allow for eaves, sun shading devices, blades, fins and columns.
27The site coverage objectives are:
(1)To ensure development is consistent with the desired future built and landscape character of the area.
(2)To protect and improve the tree canopy within Ku-ring-gai.
(3)To provide viable deep soil landscaping within residential developments.
(4)To minimise impervious surfaces that generate stormwater run-off.
28The controls for multi-dwelling housing provides there must be a maximum site coverage for townhouse development of 40%.
29The objectives for deep soil landscaping include:
(1)To provide consolidated deep soil zones in all residential development sites through careful planning and building design.
(2)To provide landscaping is appropriate scale context of the development.
(3)To provide landscaping that provides habitat for native indigenous plants and animals and contributes to biodiversity in the area.
(4)To create high-quality landscaped areas through retention and/or planting of large and medium-sized trees.
(5)To ensure landscaping that contributes to the garden character of the locality.
(6)To promote landscaping that minimises water use.
(7)To ensure that most of the deep soil landscaping is within common areas.
30The design controls are that multi-dwelling housing must have a minimum deep soil landscaping area of 30% of the site and where there is a street frontage of 30 m or less, then 50% of the front setback area is to be deep soil landscaping. The controls also require adequate space for tree and screen planting, and deep soil zones are to be provided to all side boundaries with a minimum width of 3 m along the rear boundary within the common area.
31Sub clause 4 requires a maximum of one-third of the principal private open space area to be counted as deep soil landscaping and to maximise deep soil landscaping areas, driveways and vehicle turning areas are not to dominate the street setback zone.
32The tree replenishment provision requires a minimum number of tall trees capable of attaining a mature height of at least 13 m on shale, transitional soils and 10 m on sandstone derived soils. For sites over 1800 sq m, the number of tall trees is calculated at the rate of 1 per 300 sq m. And at least two canopy trees must be provided in the street setback area.
33The objectives for building facades include:
(1)To ensure development demonstrates individual identity for each dwelling.
(2)To promote buildings of high architectural quality that contribute to the desired local character.
(3)To create building facades that reduce the bulk and scale of the building.
(4)To create building facades are environmentally responsive.
(5)To integrate building elements into the overall building form and facade design.
(6)To ensure that building facade design contributes to the safety of the public domain.
34The controls for attached dwellings must comply with the following:
(iv)break buildings into separate blocks, with maximum length of 24 m
(v)where external walls along with than 12 m, the building alignment must be stepped by a minimum 0.3 m articulation in the facade. The controls for building facades also requires that they be modulated and articulated with wall planes varying in debt by not less than 0.6 m and facades must be designed to respond to solar access with eaves and louvers
35The provisions for building entries contain objectives:
(1)To ensure the building entry is a clear and identifiable element in the street and is accessible to all.
(2)To ensure the building entry contributes positively to the streetscape and building facade design. The controls include that building access shall be in accordance with the Disability Discrimination Act 1992 and all buildings must address the street with at least one entry, directly accessible and visible from the street and this must be integrated with the building design.
36The DCP contains provisions for private open space, to ensure that it is functional and integrated into the overall design and that it provides for passive surveillance of the street, while providing safety and visual privacy for residents. The controls provide that there is to be 35 sq m of private open space per dwelling at ground floor. The provisions for dwelling depth and room sizes, is to ensure the design provides adequate amenity for occupants, in terms of sun access and natural ventilation and to provide dwellings with well proportioned and functional rooms.
37The objectives for solar access are:
(1)To ensure a high level of internal amenity for all occupants with direct access to daylight in all habitable rooms.
(2)To minimise the negative impact of overshadowing on living areas and private and communal open space areas of neighbouring development.
(3)To minimise the impact of development of existing solar collection devices.
38The controls include that buildings must be oriented to optimise the northern aspect and dwellings must receive a minimum of three hours direct sunlight to living rooms and adjacent private open spaces between 9 and 3 on 21 June. It is noted that shadows cast by trees and fences are excluded from this calculation.
39The objectives for vehicle access is that it is to provide well located and designed vehicle entrances that facilitate for pedestrian amenity and safety and the controls include:
(1)Driveways must be designed to avoid a straight long gun barrel appearance, by using appropriate landscaping and variations in alignment.
(2)Driveways must be located at least 3 m from any side boundary and be separated from the boundary by a continuous landscaped verge and screen planting.
(3)Not more than one driveway may be established on any property with a front width of less than 20 m, not more than two driveways may be established on any other property.
(4)On-site vehicle turning areas must be designed to permit turning in a single reversing movement.
(5)Where a waste and recycling room is provided within the basement, the minimum finished ceiling height must be 2.6 m.
40The objectives for car parking provision are:
(1)To provide adequate car parking for the buildings users and visitors.
(2)To locate and design car parking, which is integrated with the site and building design.
(3)To ensure that garage structures do not dominate the site or the streetscape.
41The controls for car parking design include:
+ multi-unit dwelling developments must provide on-site parking within basements wherever practicable, and to maximise landscaping area, basement car park areas must be under the building footprint
+ basement car parks must not project more than 1 m above existing ground level
+ wherever possible, direct access to the dwellings must be provided from basement car parks to entry, garages must be integrated within the building
+ the width of the garage visible from the street must not be greater than 6 m or more than 40% of the site frontage, whichever is the lesser
+ the design of the garage must be in keeping with the dwellings scale, form and design and be compatible with the streetscape.