Relevant background
6This matter has some history. In 2005, Mrs Wallis, the applicant's wife and the then owner, lodged a development application for a first floor addition. Council refused the DA and the refusal was appealed to the Court. Commissioner Brown dismissed the appeal in Wallis v Hornsby Council [2006] NSWLEC 122 on the basis that the proposal would have an unacceptable impact on solar access to the adjoining properties.
7In 2007, Mrs Wallis and daughters (the then owners) lodged another development application for alterations and additions including a first floor addition. The council assessment report notes two submissions opposing the proposal on the grounds of overshadowing, construction over a sewer line, and excessive scale and bulk. The report states that the proposal would result in only a minimal increase in overshadowing and was compliant with the solar access controls. Overall the proposal was deemed compliant and subsequently DA 89/2007B was approved on 7 March 2007 on the basis of the approved plans and subject to conditions of consent. [We note that, amongst others, condition 14 required 'construction must comply with AS3959-1999 level 3 "Construction of Buildings in Bushfire prone areas". ]
8A private certifier approved a Construction Certificate (CC) for the works valued at $60,000. The terms of the CC require that the works must be carried out in accordance with the approved plans and conditions of consent.
9Condition 3 of the consent required the applicants to appoint a Principal Certifying Authority (PCA) to ensure that the works were carried out in accordance with the approval and to undertake inspections at the stages identified in the CC. Documentation in the council's bundle indicates that the work was carried out under an 'Owner Builder Permit'. There is no documentation to show whether a PCA was appointed; there are letters from a consulting engineer, Mr Patrick Meares, noting the structural adequacy of timber framing but no mention as to whether the structures were located/ built according to the approved plans.
10On 23 August 2010, the council issued a s 121B Order 15 requiring Mrs Wallis and her daughters to modify the building by reducing its size to comply with the approved plans. This order arose after council became aware that the alterations and additions were not in accordance with the plans approved under DA/89/2007B.
11Subsequently, Mrs Wallis lodged a s 96 development application (DA/89/2007/C) to enlarge the approved works. The owners are listed as Mr and Mrs Wallis. The council report notes that the works had been completed. A council survey confirmed that the extent of work completed was in excess of the dimensions shown on the submitted 'as built' plans. Two submissions were received raising concerns over scale, height, setbacks and solar access. The council's assessment determined that the submitted plans were inaccurate and there were unacceptable solar access impacts on adjacent properties. The s 96 application was determined by refusal on 3 December 2010. The applicant has not appealed the s 96 refusal.
12The s 121B order, the subject of this appeal, was issued on 1 June 2011.
13Further documentation in the council's bundle of evidence shows that Mr & Mrs Wallis applied for a Building Certificate on 18 October 2011. The bundle also indicates that Mr Wallis sought preliminary bushfire design advice from an accredited consultant. The report notes that the structure does not comply with the relevant conditions of consent. The advice from the consultant, dated 16 November 2011, is that the structure, as built, does not comply with current design standards for the calculated bushfire attack level and that condition 14 requiring 'level 3' construction is an under estimate of the local bushfire threat. An internal memo regarding an assessment of the applicant's property by council's Building Certifications team leader for the purpose of determining compliance with the Building Code of Australia, and therefore the issuing of a Building Certificate, notes non-compliance with respect to the internal stairs, smoke alarms, and the balustrade to the first floor balcony. The conclusion was that the additions are not considered fit for occupation. [It is not known whether an Occupation Certificate has been issued.]