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What approvals do I need? - Retaining walls

Description A retaining wall is a structure that retains soil when there is a change in ground levels.
Do I need approval?

A planning approval is required for retaining walls. The retaining walls in this instance are those proposed within a lot in order to construct a dwelling if the terrain of the lot is undulating requiring retaining walls. Please note: A planning approval should be obtained prior to submitting for a building permit. 

A building permit is required for retaining walls where a proposed retaining wall exceeds 500mm in height, is an addition to an existing retaining wall and/or in the case of tiered walls, the walls exceed 500mm in total height.

What do I need to submit?

Planning

  • Completed Development Application Form and checklist
  • Relevant fees (refer to the Planning and Sustainability Fee Schedule, item number 1)
  • 1 x copy of site plan showing the location of the retaining walls - drawn to scale at not less than 1:200
  • Elevations of the proposed retaining walls - drawn to scale of 1:100 or 1:200

Building

Uncertified

  • Completed Application for Building permit - BA2 form
  • Relevant fees
  • 2 x copies of a site plan. The site plan must be drawn at a minimum scale of 1:200 indicating site boundaries, existing and proposed levels and proposed wall location (relative to a nominated datum point or Australian Height Datum)
  • 2 x copies of structural engineers details (always required for retaining walls)
  • Development approval (if required)
  • Notice and request for consent for encroachment or adversely affect (if required) - BA20 form

Certified

  • Completed Application for Building permit - BA1 form
  • Completed Certificate of Design Compliance
  • Relevant fees
  • 1 x copy of all technical documents noted on the Certificate of Design Compliance
  • Prior development approval (if required)
  • Notice and request for consent for encroachment or adversely affect (if required) - BA20 form

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