Granny flat approval in Ipswich

The floor area limit climbs in steps with lot size, so the same flat can suit one lot and not the one next door. The flat adds a dedicated car space and its own storage area for bins, and that bin area stays out of the road boundary setback and out of the building frontage.

All roofed buildings and structures with impervious roofing together are held to a share of the lot, and building height is measured to the peak of the roof. The rural zone asks for much deeper front and side setbacks, and the new suburban precinct has its own street setback rules. A retaining wall, screen or fence past a set height needs an amenity and aesthetics approval from the council wherever it sits, which matters when a sloping yard is cut to make a level pad.

The state's mapping covers bushfire, flood, heritage, landslide and vegetation for Ipswich. Bushfire usually brings a bushfire attack level assessment, landslide a soil test and engineer designed footings, and flood possible conditions on floor levels and flow paths. A siting variation goes to the council; building approval sits with a private certifier or the council.

Urban Utilities decides build-over. The site plan shows the flat's footprint and floor area, the car space, the bin area, each boundary, the roofed area of everything on the lot, any retaining and the sewer.

What catches people out in Ipswich

• The bin storage area has to sit out of the road setback and out of the frontage.
• Crossing a lot size step changes the floor area you can build.
• A wall and fence combined past a set height can need an amenity approval.
• Older advice may predate the current scheme, so check the version in force.

What a site plan for a granny flat looks like