Building in Ashgrove: Knockdown Rebuild, Granny Flat & Duplex Guide
Brisbane City Council (QLD) · Indicative rules and costs for homeowners · 中文报告同样支持
Min lot (KDR)
400㎡
Max height
9.5m
Setbacks (front/side)
6m / 1.5m
DA timeline
16–36 wks
Fast-track CDC
Usually DA only
Build cost
$2200–$3400/㎡
📊 Indicative ranges from council planning controls and recent market data — not quotes, and individual blocks vary.
Flood overlay critical - 2011 and 2022 floods. Character/Heritage overlay in inner suburbs. Pre-lodgement meeting recommended.
What can YOUR block in Ashgrove fit?
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Get my free feasibility report →Frequently asked questions — Ashgrove
Can I knock down and rebuild in Ashgrove?
Generally yes — Brisbane City Council requires a minimum lot of around 400㎡ for a standard knockdown rebuild, with a maximum building height of 9.5m. Most projects need a full DA (development application).
How long does council approval take in Ashgrove?
A DA through Brisbane City Council typically takes 16–36 weeks in practice.
How much does it cost to build in Ashgrove?
Typical build costs around Ashgrove run $2,200–$3,400 per square metre of floor area, plus demolition of roughly $16,000–$28,000. These are indicative ranges, not quotes.
Can I build a granny flat in Ashgrove?
Most QLD councils allow secondary dwellings subject to lot size and overlay rules — check Brisbane City Council's planning scheme or run a free feasibility report.
What are the main risks for building projects in Ashgrove?
For the Brisbane City Council area: heritage risk is medium, flood risk is high, bushfire risk is low. Flood overlay critical - 2011 and 2022 floods. Character/Heritage overlay in inner suburbs. Pre-lodgement meeting recommended.
Nearby areas under Brisbane City Council
This page provides general guidance for the Brisbane City Council area and is not advice about any specific property. Planning controls change — always confirm with council or run a block-specific feasibility report. © 2026 AusBuildCircle 澳洲建房圈.