5 The objectives of the zone No. 10 are contained in clause 21 and include:
(a) To allow in appropriate circumstances, a mixture of compatible land uses such as residential, retail, commercial, light industrial and industrial development.
(d) To incorporate contemporary urban design principles in the design of new buildings and the interpretation of their relationship, with the public domain.
(g) To minimise any adverse impact on residential amenity by devising appropriate design assessment criteria and applying specified impact mitigation requirements by the use of Development Control Plans.
6 The development was assessed under the Urban Design Development Control Plan of 1998. This Development Control Plan adopts a performance-based system of control that focuses on 'performance criteria', to achieve 'desired outcomes'. "This approach allows flexibility and innovation by not restricting design solutions to a particular prescriptive standard." The emphasis of the Development Control Plan is on the assessment of applications on merit to achieve the best possible balance between the diverse, and sometimes conflicting, issues that affect development sites. At 2.4 of the Development Control Plan, visual and aural privacy is addressed. Here the objectives are:
+ To balance the need for more intensity, urban housing with the achievement of a reasonable level of visual and aural privacy.
+ To ensure all habitable rooms and private spaces in residential buildings achieve reasonable privacy.
7 The performance criteria include for direct overlooking to main habitable rooms of other dwellings is minimised by building layout and location, position of balconies, design of windows and screening devices and landscaping.
8 The controls include that the minimum separation between directly overlooking dwelling units excluding balconies, is 6 metres between non-habitable rooms, 9 metres between habitable and non-habitable rooms and 12 metres between habitable rooms. The controls also state, despite the above, direct views between living area windows of dwellings are to be screened, obscured or offset to ensure maximum privacy. Balconies in any wall plane are not permitted within 6 metres of any other directly facing wall plane that does not have windows or balconies, or within 12 metres of any other directly facing wall plane with windows or balconies.
9 State Environmental Planning Policy No. 65, Design Quality of Residential Flat Development, is a relevant instrument for the assessment of this modification application. This contains 10 good design principles that must be taken into consideration and include: context; scale; built form; density; and amenity. Optimising amenity requires appropriate room dimensions and shapes, access to sunlight, natural ventilation, visual and acoustic privacy and efficient layout. For scale, good design in precincts undergoing a transition, proposed bulk and height needs to achieve the scale identified for the desired future character of the area. Similarly for context, the desired future character in planning and design policies must also be considered.
The Proposal
10 Figure 1 shows the proposed modification application for an additional 2.4 metre wide balconies across the rear southern elevation of the building, at first and second levels. This is in addition to the approved recessed balconies off the living areas and provides new balconies off the bedrooms of about 27 sq m for each of the units 3, 6, 7 and 10. The balconies on the two levels are separated by extensions of the common dividing wall. This has the effect of the edge of the proposed new balconies being 3.6 metres from the rear boundary, whereas in the original approval, a 6 metre setback to the boundary was shown. As shown in figure 2 the adjoining factory/warehouse wall is constructed on the boundary.
11 The council refused the modification application on 23 April 2009 on the grounds that:
+ The proposed balconies, by virtue of their inadequate setback from the boundary, do not comply with the Development Control Plan and State Environmental Planning Policy No. 65 and therefore will have an undue and detrimental impact on the amenity of the subject site and future amenity of the adjoining site.
+ The proposal is not in the public interest.
The Council provided a Statement of Contentions as follows: