Moreton Bay · South East Queensland · Granny flat data
Building a granny flat in Highvale: what the council data shows
Not enough decided granny flat applications in Highvale to publish suburb-level rates — so this page shows the honest picture: what we hold for Highvale, and how granny flat applications have fared across Moreton Bay. Data current as of 26 July 2026.
Casa Intelligence holds 3 decided granny flat applications for Highvale — too few to publish a suburb-level rate — while across Moreton Bay, 99% of 482 decided granny flat applications were approved.
3
Decided in Highvale
Too few to publish a suburb-level rate
99%
Moreton Bay-wide approval
478 of 482 decided applications
43 days
Moreton Bay median decision
Lodgement to decision (n=482)
29 Mar 2023
Latest local decision
Most recent decided granny flat application in Highvale
Why we don’t publish a Highvale approval rate
Our records hold 3 decided secondary dwelling (granny flat) applications on Highvale properties. A percentage computed from a sample that small would look authoritative and mean almost nothing, so we don’t publish one. That is not a gap in council data — it usually reflects that many compliant granny flats proceed without a development application (building approval only), so few ever appear in DA records.
Across Moreton Bay as a whole the sample is meaningful: 99% of 482 decided secondary dwelling (granny flat) applications were approved, with a median decision time of 43 days. These are real, decided applications assessed by the Moreton Bay council, not estimates or modelling.
Whether a granny flat works on a specific Highvale block comes down to the zone, precinct and overlays for that address — lot size, flood and character mapping decide more than suburb averages ever will.
About this data
These figures summarise decided development applications recorded against Highvale properties and Moreton Bay council records, current as of 26 July 2026. Past decisions describe how comparable proposals have fared — they do not guarantee, and cannot predict, the outcome of any future application. This page is general information, not planning or legal advice: what is achievable on a specific site depends on its zoning, overlays, lot dimensions and assessment pathway.
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