Conclusion
43Having considered the evidence, the submissions and undertaken a view I do not consider this Building Certificate application merits consent for the following reasons.
44The subject lot is one of a few larger lots in this immediate neighbourhood and it has a fall of approximately 1 m from the front street boundary to the rear boundary. Consequently this has enabled the large two-storey dwelling to be approved. However the form of the dwelling includes reinforced concrete columns and slabs, with the ground floor slab being approximately 1.2 m above natural ground level adjacent to the front alignment of the neighbouring dwelling, which is located towards the back of its allotment.
45It is then apparent to me from the view that the new dwelling appears as a significantly large and bulky building, notwithstanding the existing (partially deciduous) vegetation on the adjoining properties at 211/213 Loftus Avenue. Furthermore, the approved rear balcony with an area of approximately 54 sq m is also relatively large in the context of the dwellings in this neighbourhood. Even with the installation of the 2 m wide planters, the overall width of the enclosed balcony and supporting piers is dominating in my opinion and does not protect or enhance the visual amenity of neighbouring properties.
46In response to the other issues concerning adverse amenity impacts on the neighbouring properties, I have considered the evidence on the likely use of the large balcony, in the subject context. Firstly, I accept the planner's evidence that the approved 1,600 mm side privacy screens should mitigate overlooking and aural impacts to a reasonable extent, based on the usage of the approved uncovered balcony. However, I then accept Mr Nash's evidence that the extended slab will likely lead to significantly increased use of the balcony with consequential decrease in neighbours' amenity.
47In this regard I have considered Mr Hammoud's investigation of rainfall records for the area, which leads to his conclusion that the extended roof would only present opportunities for the subject balcony to be used between 8.5 - 12.82% more than if the balcony was left unroofed. Whilst I have some difficulty in accepting this approach. I also think his justification that because the neighbouring properties do not have similar sheltered outdoor areas that face the subject balcony, then they will be inside and unaffected by usage of the large balcony activities, does not result in a reasonable balancing of amenity outcomes.
48Instead, it appears to me that the way the subject dwelling is configured indicates the likelihood of increased usage with the covered balcony. There is a large entertainment room adjacent to the balcony, to which it is connected via a 2.4 m wide hallway. Also connected to this hallway is a "hot bar", which Mr Hammoud indicated could contain a fridge, microwave so as to allow for food preparation and service. On the eastern side of the dwelling is a bedroom that has a 3.6m wide doorway onto the balcony and this room is connected to an ensuite and laundry. Consequently, I do not consider the balcony is a conventional low-use balcony off the bedrooms.
49Apart from this internal configuration, I note that provision has been made for extensive lighting of the extended balcony ceiling and various cabling and services installed that could also facilitate increased usage of the balcony. Taking into consideration that the elevated balcony enjoys favourable views towards the city skyline, I am satisfied to rely on the opinion of Mr Nash that the extended roof over the balcony will make it more attractive and increase its usage. In the circumstances then, I consider the privacy and aural amenity of the adjoining properties would be adversely impacted.
50As noted, the ground floor of the constructed dwelling is about 1.2m above NGL adjacent the rear dwelling at 213 Loftus Avenue. Accordingly, my assessment of the visual impact is that the retention of the extended roof slab, supporting piers/column and side screens significantly intensifies the bulk and scale presentation of the dwelling to the neighbouring properties.
51In this regard, I rely on Mr Nash's opinion that the building elevation is not adequately articulated and does not step down so as to follow the natural contour of the land. The removal of the subject 3 m roof slab extension, as approved achieves this objective more satisfactorily. In my assessment, the retention of the extended slab exacerbates the bulk and scale of the dwelling resulting in negative visual impacts of the proposal.
52In this regard, I have considered the previous assessment of the similar s 96 modification application by Commissioner Dixon as a circumstance of the case and agree with her assessment that the retention of the built roof form, when viewed from the rear, "is out of scale with adjoining built form." Insofar as the neighbourhood is undergoing some redevelopment, nevertheless newer residential development such as 211/213 Loftus Ave is of a noticeably smaller scale than the subject building. Considering then the context of adjoining and nearby dwellings, I give diminished weight to the applicant's submissions that the increased visual bulk is acceptable because it cannot be readily observed from the street.
53Apart from the failure of this application on the planning issues, I am also not satisfied the applicant has adequately addressed the structural engineering issues. As noted in the joint engineering report, the submitted structural certification is inadequate and that full certification is required for the completed structure. I agree with this conclusion because the simple certification statement by Mr Alagha (Exhibit E) seriously lacks detail in my assessment. Accordingly, I do not consider it appropriate to issue a building certificate for only part of the roof slab, which has not been properly certified.
54Insofar as this application is for a partial building certificate for the roof slab extension and supporting structure, the issue of such certificate would according to s 149E (2):
(2) A building certificate operates to prevent the council, for a period of 7 years from the date of issue of the certificate: (my emphasis)
(a) from making an order (or taking proceedings for the making of an order or injunction) under this Act or the Local Government Act 1993 requiring the building to be repaired, demolished, altered, added to or rebuilt, and
(b) from taking proceedings in relation to any encroachment by the building onto land vested in or under the control of the council,
(c) in relation to matters arising only from the deterioration of the building as a result solely of fair wear and tear.
55With reference then to s 149D1(b), I am satisfied that there is such a matter, being the structural adequacy of the dwelling that could prevent the issue of a Building Certificate. Furthermore, Council is taking further action pursuant to s 123 of the EP & A Act as stated in the existing Summons in Exhibit 8. This action includes:
An order that the Second Respondent demolish and remove the last 3 m of the first floor rear balcony roof and supporting columns within 3 months.
56Accordingly, I think considerable weight should be given to these ongoing proceedings and therefore I do not consider it appropriate to approve a Building Certificate for a relatively small part of the integral roof slab whose structural integrity has not been completely documented and properly certified at this stage.