Impact on streetscape
12 Mr and Mrs Houen's objection (prepared by Mr Moffitt) describes the streetscape and locality. It states that both have high visual quality and a consistency of scale and character and supports this statement with photographs. My visit to the area confirmed this assessment. It is a quiet, low-density area in which the houses are surrounded by space.
13 The proposal is a two-storey building set 1.3m back from Arthur Street for a length of 20m. (During the hearing the applicant offered to reduce the length of the building by 1m.) The setback from Cromwell Street is 5m. (During the hearing the applicant offered to set the building a further 500mm from the street.)
14 In Project Venture Developments v Pittwater Council [2005] NSWLEC 191 I established a planning principle on compatibility between a building and its surroundings, stating that, in order to test whether a proposal is compatible with its context, two questions should be asked:
* Are the proposal's physical impacts on surrounding development acceptable? The physical impacts include constraints on the development potential of surrounding sites.
* Is the proposal's appearance in harmony with the buildings around it and the character of the street?
15 The physical impact on 33 Cromwell Street is an issue in the case and is dealt with below. The issue whether or not the proposal is in visual harmony with its surroundings is one on which the decision is necessarily subjective. Analysing the existing context and then testing the proposal against it can, however, reduce the degree of subjectivity.
16 The judgment in Project Developments includes suggestions how the above can be done.
For a new development to be visually compatible with its context, it should contain, or at least respond to, the essential elements that make up the character of the surrounding urban environment. In some areas, planning instruments or urban design studies have already described the urban character. In others (the majority of cases), the character needs to be defined as part of a proposal's assessment. The most important contributor to urban character is the relationship of built form to surrounding space, a relationship that is created by building height, setbacks and landscaping . In special areas, such as conservation areas, architectural style and materials are also contributors to character.
Buildings do not have to be the same height to be compatible. Where there are significant differences in height, it is easier to achieve compatibility when the change is gradual rather than abrupt. The extent to which height differences are acceptable depends also on the consistency of height in the existing streetscape.
Front setbacks and the way they are treated are an important element of urban character. Where there is a uniform building line, even small differences can destroy the unity. Setbacks from side boundaries determine the rhythm of building and void. While it may not be possible to reproduce the rhythm exactly, new development should strive to reflect it in some way.
Landscaping is also an important contributor to urban character. In some areas landscape dominates buildings, in others buildings dominate the landscape. Where canopy trees define the character, new developments must provide opportunities for planting canopy trees.
17 Applying the above method to the surroundings of this site, it is clear that the predominant building height is single-storey. The building setbacks are reasonably consistent, although not in an obviously straight line. The landscaping does not dominate buildings; rather, there is a balance between buildings and vegetation. There is a consistency of architectural style (tiled hipped roofs, brick walls, verandas, windows with hoods over them) throughout.