2015-05-26 Planning & Organisation Committee Agenda

PLANNING & ORGANISATION COMMITTEE MEETING AGENDA                                            26 MAY 2015


Table 1 - Self - Assessable Provisions

Probable Solution (Self-Assessable provisions)        Comments

S25.1 No building works, filling or excavation        X The works constructed represent building works,
works are within 4.5m of the centre line of the top   fill and excavation. Therefore assessment against
of the concrete revetment wall;                       the Specific Outcomes is required and addressed
                                                      in the report below.

S25.2 A minimum of 25% of the area within 4.5m         The proposal complies having 38% of the
of the revetment wall is planted with shrubs and      setback area planted with shrubs. A total of 83% is
trees with a mature height of 3m or less;             soft landscaping.

S25.3 A maximum of 25% of the area within 4.5m         New and existing works are equal to 17% being
of the revetment wall is under hard pavement,         under hard pavement or decking.
decking or similar, and the balance is to be grass,
ground covers or scrubs provided no shrubs are
planted within the first 1m of the revetment wall;

S25.4 No tree species with a mature height of over     Three (3) existing mature palm trees with a
3m are planted within 4.5m of the revetment wall;     height greater than 3m are located approximately
                                                      4m from the revetment wall. These trees are lawful
                                                      as they existed prior to The Noosa Plan. The
                                                      Superseded Planning Scheme did not limit the
                                                      height of trees within the setback area.

S25.5 The ground surface within the first metre        The proposal complies.
from the revetment wall is turf, groundcover or
hard pavement.

S25.6 Side boundary fences within 4.5m of the          The side boundary fences exist and comply with
revetment wall taper down to a maximum height of      this provision.
1.2m at the revetment wall and no more than 1.5m
at a distance of 2.25m from the revetment wall.



Given the works do not meet the Probable Solution; they must be assessed against Specific
Outcome 25 of the Building Works Code.
Specific Outcome O25 - The flood detention and amenity functions of areas adjacent to the
revetment walls within Noosa Waters Estate are retained and enhanced by ensuring—
a)    works do not protrude through a batter line of 1:4.5 measured from the centre line of the
      revetment wall;
b)      there is no additional load placed on the revetment wall;
c)      works do not pose a risk to the membrane adjoining the revetment wall;

The new retaining wall near the stairs protrudes through the 1:4.5 batter line by 0.38m, the
existing wall and extension to this wall protrudes by 0.2m and the tip of the first 2 stair treads
slightly protrude. This results in a reduction in flood storage volume but this displacement is offset
by the existing grassed area between the works and the revetment wall, being below the 1:4.5m
batter line.

The applicant has provided certification from a Registered Professional Engineer of Queensland
(RPEQ) that certifies the flood storage function of the setback is not reduced and there are no
additional pressures on the revetment wall.



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