Stockwell RFI Response Letter Final 22.12.21 · MCU21/0175

which must be retained. On this basis, streetscape improvements are focused on the western frontage.
These improvements include but not limited to;

    •   Street trees at 8m centres;

    •   Front entry landscaping;

    •   Turfing; and

    •   Landscape screening shrubs to car park and retaining wall & overhang.

Please refer to the attached Appendix A – Architectural Plan Package by BUCHAN and Appendix B –
Landscape Concept Design Package by Place Design Group for the detailed streetscape improvements.


Council Item 4: Point of Stormwater Connection

The proposed point of connection of the site drainage system to the existing trunk network is different
to that proposed for this site with OPW20/0145.

Information Required:

Provide hydraulic grade line calculations demonstrating that the proposed network downstream of the
site is able to accommodate the design flow from the site without surcharging the existing network.

Our Response:

Please refer to attached Appendix C – Civil Engineering Cover Letter by MPN Consulting. A new
operational works package will be provided to Council with the detailed design.




Council Item 5: Landscape Integration of Bioretention Devices

The proposal to provide all stormwater treatment through end-of-line bioretention devices has resulted
in a poor landscape and visual amenity outcome, as the level differences between these devices and
surrounding pavement and verge levels results in vegetation significant below surrounding levels,
retaining walls, and the need for safety fencing. These outcomes conflict with AO7.1 and AO9.1 of the
Water Quality and Drainage Code.

Information Required:

Provide an updated SWMP and preliminary engineering plans, which achieve a higher level of landscape
integration by minimising bioretention system surface set-down relative to surrounding areas and
minimises retaining walls consistent with the allowances specified in the Bioretention Technical Design