Flagstone is really two places. There are the new estate streets, with homes on compact lots built in the last few years, and there are the older acreage blocks that were here long before the estates. The first question we ask in Flagstone is which one you are on, because the rules for a patio or carport are quite different.
On a new estate lot
Much of the newer part of Flagstone sits inside a state Priority Development Area. In those areas the approved plan of development for each stage can set the setbacks, site cover and building envelope for your lot, and your certifier uses those in place of the standard Queensland siting rules. On top of that, your contract of sale may include estate design guidelines that control colours, materials and what can be seen from the street.
- Find the plan of development or building envelope plan for your stage. Your conveyancer, builder or the developer’s office can help.
- Read the design guidelines in your contract, and check whether they have expired. Many run for a set number of years.
- Keep the site plan from your house build. It shows the boundaries, easements and the sewer connection.
With those in hand, we can design a patio that fits the first time. Without them, the risk is a design that passes the certifier but not the estate, or the other way round.
Small lot patios
On a new Flagstone home the usual job is extending a small alfresco or roofing the back slab. Site cover is often the limit: the house, garage, alfresco and patio all count towards it. We add up what is already roofed before we design, so there are no surprises at approval. If the side boundaries are close, we keep posts and gutters within the setbacks, or make the patio narrower rather than wait on a council referral.
On an acreage block
Outside the estates, the Logan Planning Scheme applies in the usual way. These are the rules that matter most for a big patio, shed or carport on acreage:
- Setbacks. On rural residential and acreage land, buildings keep 10 m from the road and 3 m from the side and rear boundaries.
- Site cover. Logan caps it at 20% on the acreage precinct and at 700 m² of roofed area in the rural residential, emerging community and rural zones.
- Large outbuildings. Sheds and carports can add up to 150 m² in total before stricter clearances and a 5.5 m height limit apply. Over 300 m² the work needs council assessment.
- No shipping containers as sheds. Logan does not accept a container as a domestic outbuilding, so one always needs an application.
Caravans, boats and trailers
Acreage owners in Flagstone often want a cover for the caravan. Logan’s heavy vehicle parking law allows a private motor home or caravan on a house lot when it is the only heavy vehicle there, so a dedicated cover is common. Measure the van to the top of the air conditioner and aerials, then add clearance. A freestanding cover can be built as tall as you need; a flyover off the house works when the van parks beside it. Taller posts need bigger footings, and the engineering for your wind rating takes care of that.
Overlays to check
- Bushfire. Land inside Logan’s bushfire hazard overlay is a designated bushfire prone area, so bushfire construction rules apply at building approval. A patio attached to the house, or within 6 m of it, generally meets the same standard as the house.
- Flood. In Logan’s high and moderate flood areas, a carport roof has to sit above the defined flood level unless an engineer certifies it for the flood loads.
- Steep land. On slopes of 12% or more, Logan asks for a site-specific geotechnical report certified by an engineer.
Each of these shows on council’s mapping for your lot. We check them before we quote, not after you have paid for drawings.
Sewer and septic
On the estates, Logan Water owns the sewer, and footings near it are assessed against the Queensland Development Code: about 1.2 m from small mains and 1.5 m from the centre of a manhole. On acreage without sewer, the on-site septic tank and its disposal area are what we plan around instead. Tell us where yours are, or show us on the day.
Fees to expect
Most patios and carports need only a building approval through a private certifier. If a design misses one of Logan’s setback or site cover outcomes, it becomes a concurrence referral to council; Logan’s 2026-27 fee for that is $869. We tell you at the measure-up whether your design needs one, and we design to avoid it where we can.
Getting a quote
Tell us the size you want, whether you are on an estate lot or acreage, and send any estate documents you have. We come out, measure up, check the mapping and give you one price for design, engineering, approval and the build, in genuine Colorbond and BlueScope steel.