2 David Low Way - Town Planning Report - Urban Systems Pty Ltd

 Table 16—Specific outcomes and probable solutions for the Eastern Beaches locality
 Specific outcome                     Probable solution                     Applicant response
 b) 0:3:1 for that area of a site in
 excess of 2,000m².
 Flooding and drainage                S11.1 For new buildings or            Complies with probable solution.
 O11 Buildings and other works are structures or additions of more          Each lot has a building pad above
 designed and sited to—               than 50m² gross floor area to an      the defined flood event.
 a) provide flood free access to      existing building or structure, floor
 premises and flood free habitable    levels for habitable rooms are—
 areas;                               a) for areas where minimum floor
 b) allow only minor, short term and levels are available—not less than
 infrequent flooding of non-          the specified level;
 habitable areas; ‘                   b) for areas where flood modelling
 c) ensure carparking areas can be is available—a minimum of
 adequately drained;                  300mm above the modelled flood
 d) ensure drainage does not          level; and
 adversely impact upon other          c) for areas where flood modelling
 premises; and                        is not available, a minimum of
 e) ensure filling or excavation does 300mm above the highest known
 not adversely impact upon other      flood level;
 premises by—                         AND
 i. causing ponding on the site or    S11.2 Where Council
 nearby land;                         infrastructure is available—
 ii. increasing flooding, which       a) any drainage (for buildings and
 adversely affects the safety or use land) flows to that infrastructure;
 of any land upstream and             and
 downstream;                          b) the infrastructure has the
 iii. adversely affecting the flow of capacity to accept any additional
 water in any overland flow path;     loading.
 and                                  AND
 iv. falling towards the frontage or  S11.3 Car parking and
 other boundaries without sufficient maneuvering areas are
 retention                            constructed at a level that permits
                                      the parking area to drain from the
                                      site by gravity means, without the
                                      need for mechanical pumping; or
                                      S11.4 Basements for residential
                                      uses have flood immunity above
                                      the 1%AEP defined flood event
                                      where alternative means to
                                      mechanical pumping are used to
                                      achieve such immunity; or
                                      S11.5 Basements for non-
                                      residential uses have flood
                                      immunity above the 1%AEP define
                                      flood event that may be achieved
                                      by means of mechanical pumping
                                      where the mechanical feature is
                                      installed with adequate holding
                                      tanks and an alternative back up
                                      power source.
 Roof form                            S12.1 The main roof of the            Not applicable.
 O12 Roof forms—                      building has a roof pitch no less     The development does not involve
                                      than 5 degrees and has minimum        building work.
ROL, 2 David Low Way                              Page 34                                        August, 2017