20080490 - Decision Notice [As Published] · 112008.490

Stormwater

12.

13.

Gutters and downpipes are to be provided in accordance with Part 3.5.2 of the Building
Code of Australia 2006.

Stormwater off roofed areas is to be collected and discharged to protect the building
and other property (including neighbouring allotments) from adverse effects. The
method of stormwater disposal shall be in accordance with Sunshine Coast Regional
Council requirements.

In general stormwater off roofed areas is to be collected and discharged as follows: -
(i) ‘Toa system of interallotment or subdivision drainage.

(ii) Where interallotment or subdivision drainage is not available the stormwater is
to be discharged via an underground pipe to the street channel;

(iii) Where grade does not permit the stormwater to be piped to a system of
interallotment or subdivision drainage or the street channel, it is to be discharged
- via an underground pipe with bubbler outlet or stormwater rubble pit located at
least 3.0 metres from the downstream side of building foundations and no closer
than 3.0 metres from any property boundary in a manner so as to cause minimum
inconvenience to adjoining property owners.

Surface water drainage is to be provided in accordance with Part 3.1.2 of the Building
Code of Australia 2006.

Surface water drainage shall protect the building and other property (including
neighbouring allotments) from adverse effects and shall not be channelled so as to
direct concentrated flow across a property boundary.

In general: -

(i) | The site shall fall away from the structure at a minimum grade of 1:20 for a
minimum distance of | metre from the perimeter of the building;

(ii) The finished slab heights of habitable slab on ground buildings must be not less
than 150mm above finished ground, or 100mm above sandy well drained areas,
or 50mm above paved or concreted areas than fall away from the structure at a
minimum grade of 1:20 for a minimum distance of | metre;

(iii) The ground beneath suspended floors must be graded so that the area beneath the
building is above adjacent external finished ground level and surface water is
prevented from ponding under the building.

Building —- General

14,

A Registered Professional Engineer of Queensland shall supervise all the work
contained within the Engineer's Certificate forming part of the approval documents or
as requested in the list of certificates and, at the completion of their designated
inspections sign and submit a "Certificate of Inspection" in the approved form.

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