The Backyard, Done

Granny Flats in the Lockyer Valley: Rules, Sizes and Costs

Lockyer Valley Regional Council

What a granny flat costs in the Lockyer Valley.

Prices, the local rules, and which models fit your block. Delivered from Laceys Creek, about 90km away, with full install on the table.

All in, one bedroom$216,900$266,900Finished and liveable, all-in
Do the fit-out yourself$158,800$207,600Kit, you finish it
From our yard~90kmDelivery zone B
Wind regionRegion BStandard structural rating
The rules

The rules in the Lockyer Valley.

What mattersWhere it stands
Maximum sizeSet by the Lockyer Valley planning scheme and your zone. Rural residential blocks carry generous caps. We confirm the number for your lot before you sign.
Approval pathwayMost compliant secondary dwellings go through building approval with a private certifier, not a council DA. We confirm the pathway for your lot before you commit.
Who can live in itRent it to anyone. The old family-only rule was removed in September 2022.
Setbacks and sitingZone-driven. Confirmed for your lot in the site review.
Car parkingConfirmed per site.
ServicesRural blocks here often run tank water and septic rather than town services. We price the connections before you sign.
OverlaysFlood on the valley floor, mapped hard after 2011 and 2022, and bushfire on the ridgelines. Both are checked in the site review.

Which models fit here.

FitsCompact 4.8
FitsStudio 6.0
FitsStandard 8.4
FitsWide 8.4
FitsFlex 10.8
FitsFamily 13.5

Ticks assume a rural residential zone, the most common Lockyer enquiry. Township zones can cap tighter. We confirm every rule for your site before you sign anything. Current as at September 2026.

Approvals and site works

What the council part costs.

Costed from our completed builds at Wavell Heights and Petrie.

Approvals and consultants$16,500 to $19,750
Site works and footings$20,000 to $33,000
Approvals take1 to 2 months
Delivery90km. Typically $700–$1,000 for a 3.4m module, $1,500–$2,600 for 4.0m under pilot, inc GST.

Certifier, survey, soil, bushfire, energy report, engineering. Invoiced range across our completed jobs. Typical. Hard crane access has run to $51,000; we quote after seeing your block. 3.4m wide models travel as standard loads; 4.0m models need a pilot vehicle.

What you pay

Four ways to buy.

The Standard 8.4, our one bedroom module. Prices include GST. The all-in column is the finished, liveable number with approvals and site works included.

OptionYou pay usAll in, liveable
Kit$59,900$158,800$207,600
Lock-up$75,900$174,800$212,700
Complete$139,900$176,900$189,900

See every model and every option on the full price ladder.

Where we deliver

3 towns in the valley.

Gatton95km from the yard

The valley’s centre, with big flat blocks and the uni campus. Flood mapping decides footing height on the low side of town.

Laidley85km from the yard

Older town blocks and acreage on the edges. The 2011 and 2022 flood lines are mapped, and we check them before anything else.

Plainland80km from the yard

Growing fast off the Warrego Highway. Easy truck access makes it the simplest delivery run in the valley.