

PROJECTS COMPLETED
Your property must be at least 450m² in area.
The lot must be located in a residential zone (e.g., R1, R2, R3, or R4) where granny flats (secondary dwellings) are permitted.
Only one granny flat is allowed per eligible lot.
Renovations that involve:
Altering load-bearing walls
Changing fire-rated elements
Major plumbing or electrical upgrades may require a Complying Development Certificate (CDC) or a Construction Certificate (CC).
A single dwelling house is permitted in most residential zones (R1, R2, R3, and RU5) under the Housing SEPP.
The lot must have legal street frontage and meet minimum lot size and width specified by the local council (often 450m² min., and 12m+ frontage).
Dual occupancy or secondary dwellings are not considered part of a single dwelling house.
The total height of the dwelling after the addition must be no more than 8.5m from natural ground level.
Upper storey walls must generally be set back at least 0.9m–1.5m from side boundaries depending on wall length and window placement.
Front setback should align with the ground floor or be stepped back slightly for articulation.
Extensions to a single dwelling are permitted in most residential zones (R1, R2, etc.)
A Complying Development Certificate (CDC) if the extension meets SEPP standards (faster approval), or
A Development Application (DA) if your proposal doesn’t meet CDC criteria or your site has constraints (e.g. flood, bushfire, heritage).
To build a side-by-side duplex, your site must typically meet:
Minimum lot width: 15m
Minimum lot area: at least 450–600m² (varies by council)
The land must be zoned for residential use (e.g. R2, R3, or R4) and allow dual occupancy.

