16 Mr Moore states that the site of Rothesay has been progressively reduced by subdivisions facilitating the construction of surrounding buildings and houses, particularly the adjacent apartment blocks (each side), which have left the house on a comparatively small site. The land behind Rothesay appears to have remained connected to the heritage item partly because of its topography and consequent difficulty to develop. Historically, this land was likely to have been used for ancillary buildings, stables etc.
17 Mr Moore identifies the following areas of heritage impact:
o the loss of land from Rothesay, with its potential to support the continuing, future use of the property as a residence,
o the likely impact on Rothesay because of the presence of a dwelling on the proposed new lot, and the potential effect on the significance by severing the visual relationship of the house with the harbour,
o the likely impact of the proposed lot, and consequent dwelling, on the adjoining properties including the dwellings in William Street, below proposed Lot 2, and
o the loss of archaeology and cultural heritage features on the affected land, including the rock formation, which shows evidence of quarrying.
18 On the first two matters, Mr Moore states that the creation of a new lot poses immediate conflict with the heritage significance and long-term conservation of Rothesay. The house can be seen as part of the evolving 19th-century village of East Balmain which has always enjoyed a special relationship with the harbour, and in this case, a visual relationship. In his opinion, the view of the harbour from the rear of Rothesay has become more valued with time and should be seen as one of the more considerable assets of Rothesay. A reduction in the land area will also restrict the use of Rothesay as a dwelling and will critically limit the opportunities for any improvement. The outlook from Rothesay onto the car parking platform shown on the concept plan is unacceptable in heritage terms.
19 The potential conflict with the dwellings below and adjacent to the site in William Street will have a dramatic adverse impact through the removal of solar access as well as the sense of space and daylight. A dwelling of the form shown on the concept plan will clearly obliterate evidence of the history of the site and the area, particularly the loss of the former quarrying work.