Underpinning in Seaford
In Seaford the council rule touching a footing job is Frankston's asset protection permit, tied to works involving "heavy machinery, concrete trucks, cranes or excavation". The page doesn't say whether underpinning is covered, so ask Frankston before the first dig. Coastal mapping below adds a second, non-diagnostic question.
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Underpinning around Seaford
Frankston's page turns on excavation: if a project is likely to impact public infrastructure, an asset protection permit is needed "in addition to a building permit". It does not say whether underpinning or restumping counts, either way.
The permit costs $320 (non-refundable) plus a minimum security bond of $1,000 (refundable); Frankston processes an application within 7 business days. The page carries no date — these are the figures as read 22 September 2026. Casey and Yarra Ranges exempt underpinning from their permit; Frankston's page says neither yes nor no.
Permits and Frankston City Council rules
The state's coastal acid sulfate soils layer marks Seaford's land as "Prospective" at all five sampled points — flagging where activity risks disturbing that soil, not confirming its presence. The sampled polygon measures 4,776 hectares: true of a stretch of bay-side land, not Seaford alone. EPA Victoria's publication 655.1 lists "excavation of land" as disturbing acid sulfate soil, no volume attached; the state's 2010 guideline instead names "excavating soil/sediment (> 1000 m3)" as high-risk. Nothing found says which reading applies to a footing pit — treat the mapping as a reason to ask a geotechnical engineer, not a finding. The surveyor confirms whether a permit is needed.
Source: Frankston City Council, Apply for an asset protection permit (undated page, read 22 September 2026); Department of Energy, Environment and Climate Action, Coastal Acid Sulphate Soils dataset (CC BY 4.0, metadata updated 30 July 2026) and Victorian Resources Online, Coastal Acid Sulfate Soils (archived copy); EPA Victoria, Acid sulfate soil and rock, publication 655.1 (15 July 2009); Department of Sustainability and Environment, Victorian Best Practice Guidelines for Assessing and Managing Coastal Acid Sulfate Soils (October 2010) — confirm current requirements with Frankston City Council.
Our Seaford service area
Seaford enquiries are referred to an independent provider, who then inspects the house.
See all Underpinning in Melbourne. We also work in Altona, where Hobsons Bay asks for an asset protection bond first.
Call (03) 9122 8610Last reviewed · Updated · First published