Appendix D - Code Assessment · RAL19/0011

O12 Buildings and other works are designed          additions of more than 50m2 gross floor
and sited to—                                       area to an existing building or structure,       The proposed development is for a boundary realignment only.
a) provide flood free access to premises and        floor levels for habitable rooms are—
flood free habitable areas;                         a) for areas where minimum floor levels are
b) allow only minor, short term and infrequent      available—not less than the specified level;
flooding of non-habitable areas;                    b) for areas where flood modelling is
c) ensure carparking areas can be adequately        available—a minimum of 500mm above the
drained;                                            modelled flood level; and
d) ensure drainage does not adversely impact        c) for areas where flood modelling is not
upon other premises; and                            available, a minimum of 500mm above the
e) ensure filling or excavation does not            highest known flood level;
adversely impact upon other premises by—
i. causing ponding of water on the site or          AND
nearby land;                                        S12.2 Where Council infrastructure is
ii. increasing flooding, which adversely affects    available—
the safety or use of any land upstream and          a) any drainage (from buildings and land)
downstream; and                                     flows to that infrastructure; and
iii. adversely affecting the flow of water in any   b) the infrastructure has the capacity to
overland flow path.                                 accept any additional loading;

                                                    AND
                                                    S12.3 Car parking and maneuvering areas
                                                    are constructed at a level that permits the
                                                    parking area to drain from the site by
                                                    gravity means, without the need for
                                                    mechanical pumping; or
                                                    S12.4 Basements for residential uses have
                                                    flood immunity above the Q100 where
                                                    alternative means to mechanical pumping
                                                    are used to achieve such immunity; or
                                                    S12.5 Basements for non-residential uses
                                                    have flood immunity above the Q100 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.

Sloping sites                                       S13.1 Buildings are of split level design that   Not applicable.
O13 On sloping sites, buildings and structures      step down the slope or have a suspended
are designed to maximise the use of natural         floor construction; (See Figure 8.1 below)       The proposed development is for a boundary realignment only.
slope and minimise the need for cut and fill.       AND
                                                    S13.2 Cut or fill is less than 2m in depth;
                                                    AND
                                                    S13.3 The distance between the ground
                                                    and the lowest part of the floor of the