ordinary meeting of council to be held on tuesday, 26 april 2005 at ...

Ordinary Meeting <strong>of</strong> Council - 26 April 2005 20 / 14
1 & 1A Lamond Drive, 1444 &
1444A Pacific Highway,
Turramurra
Item 20
DA1099/04
13 April 2005
Hwy frontage and the terracing proposed within the Lamond Dr frontage, impact upon the
available space/area for large tree replenishment.
Drainage plan
A concept s<strong>to</strong>rmwater drainage plan has <strong>be</strong>en submitted with the application. The plan indicates a
large above ground detention basin located adjacent <strong>to</strong> the western site corner. This area has also
<strong>be</strong>en included as deep soil landscaping. However, there is no detail as <strong>to</strong> how this area is <strong>to</strong> <strong>be</strong>
treated <strong>to</strong> ensure that the water is retained. In other developments detail is provided, and in some
cases an impervious layer is constructed as part <strong>of</strong> the detention basin, as a result <strong>of</strong> which the
detention area is calculated as built upon area (BUA) under the LEP definitions and likewise
cannot <strong>be</strong> considered as deep soil landscaping. If this is the case with this site the detention area is
required <strong>to</strong> <strong>be</strong> excluded from the deep soil landscaping calculations.
To clarify this issue, further detail is required as <strong>to</strong> how this surface detention basin is <strong>to</strong> <strong>be</strong>
constructed.
Deep soil landscaping
The areas shown on the submitted deep soil landscaping diagram as deep soil landscaping areas
does not strictly comply with the LEP guidelines and definitions. LEP194 defines deep soil
landscaping as “part <strong>of</strong> a site that: a/ is not occupied by any structure whatsoever, whether <strong>be</strong>low
or above the surface <strong>of</strong> the ground (except for paths up <strong>to</strong> 1metre wide), and b/ is not used for car
parking”. Areas calculated by the applicant include structures such as raised boardwalks and
pathways greater than 1metre wide. Under the LEP definition these are <strong>to</strong> <strong>be</strong> excluded from the
deep soil calculations. In addition, deep soil landscaping is required <strong>to</strong> have a minimum width <strong>of</strong>
2.0m. With this in mind the terraced planters within the Lamond Ave site frontage should also <strong>be</strong>
excluded from the deep soil landscaping calculations as they are only 1.0m wide. Consideration
should also <strong>be</strong> given, <strong>to</strong> the surface detention basin, <strong>to</strong> <strong>be</strong> excluded from the deep soil landscaping
calculations. It is required that the proposed development comply with deep soil landscaping
requirements.
Setbacks
The proposed development will result in a setback (as measured on the submitted drawings) from
Lamond Ave <strong>of</strong> approximately 7.0m <strong>to</strong> the basement car parking, 7.0m <strong>to</strong> the terraces and
approximately 10.0m <strong>to</strong> the dwelling itself. It must <strong>be</strong> noted, however, that only 4.0m is available
within the site frontage as deep soil landscaping as the terraced planters do not comply with
LEP194 guidelines. This does not allow for adequate tree replenishment within the Lamond Dr
frontage that is characteristic <strong>of</strong> the site and immediate area. This is highlighted within the
proposed landscape works that show no large trees within this setback. Trees proposed are small <strong>to</strong>
medium sized species, none <strong>of</strong> which are locally occurring species. This goes against LEP site
requirements and standards which states the “desirability <strong>of</strong> adequate landscaping so that the built
form does not dominate the landscape”. The site and surrounding area’s site character is one <strong>of</strong>
large Eucalypts and a continuous interconnecting tree canopy. The proposed development,
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