Logan City Council

What a granny flat costs in Logan.

Prices, the local rules, and which models fit your block. Delivered from Laceys Creek, 90km away.

All in, one bedroom$178,600–$191,600Finished and liveable, all-in

Do the fit-out yourself$158,800–$207,600Kit, you finish it

From our yard90kmDelivery zone B

Wind regionRegion BStandard structural rating

The rules

The rules in Logan.

What matters	Where it stands
Maximum size	70sqm on lots under 1,000sqm, 100sqm above. Within 20m of the main house, behind it. No minimum lot size applies to a secondary dwelling in Logan.
Approval pathway	No council DA when compliant: building approval through a private certifier.
Who can live in it	Rent it to anyone. The old family-only rule was removed in September 2022.
Setbacks and siting	Standard dwelling siting applies. We site it for your block and the certifier confirms.
Car parking	No extra space on most compliant sites.
Services	Shares the main house connections.
Overlays	Flood along the Logan and Albert rivers, bushfire in the western hills.

Which models fit here.

FitsCompact 4.8

FitsStudio 6.0

FitsStandard 8.4

FitsWide 8.4

FitsFlex 10.8

FitsFamily 13.5

Current as at August 2026. Planning schemes change; we confirm every rule for your site before you sign anything.

How it works here

Logan is one of the friendlier councils for this.

The Logan Planning Scheme 2015 spells the deal out plainly. In a residential zone, a secondary dwelling can be up to 70sqm of gross floor area on lots under 1,000sqm, and up to 100sqm on larger lots. That floor area excludes garages, carports, decks and patios, so the liveable space goes further than the headline number suggests. The flat can sit beside, behind or within the main house, never in front, and if it is freestanding, no more than 20m away.

Tick those boxes and it is typically accepted development. No development application to council. Building and plumbing approval through a private building certifier instead, usually turned around in weeks. A development application only enters the picture if the design cannot comply, or an overlay applies to your lot. Flood mapping along the Logan and Albert Rivers is the usual one.

One thing worth knowing. Logan also runs a separate auxiliary unit category, with its own 450sqm minimum lot and 15m frontage rules. That is a different animal to a secondary dwelling, which has no minimum lot size. On renting, Logan is unambiguous: council guidance confirms a secondary dwelling can be occupied by a different household and rented out independently, in line with the September 2022 statewide change.

Two people on the deck of a white Outhaus module on rural land — Standard 8.4, placed and finished

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

DeliveryZone B, 90km. Quoted per address.

Certifier, survey, soil, bushfire, energy report, engineering. Typical. We quote after seeing your access. 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.

Option	You pay us	All 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.

Next step

What will it cost on your block?

The numbers above are real ranges from completed builds. Your block decides the rest. Send us the address and we will come back with what Logan allows on it, the site costs, and the model that fits.

Start a Site Check See the range

Where we deliver

2 areas in this council.

Jimboomba100km from the yard

Big rural residential blocks and one of the highest concentrations of secondary dwellings in the state. Logan is used to assessing these.

Logan80km from the yard

Large post-war blocks, strong rental yields, and a council with clear secondary dwelling rules. One of the most reliable markets we serve.

The range

Which model fits Logan.

Six models, two widths. The 3.4m series travels without a pilot vehicle. The 4.0m series needs one.

Compact 4.816.3sqm · office or gym Studio 6.020.4sqm · one room and bathroom Standard 8.428.6sqm · 1 bed, 3.4m wide Wide 8.433.6sqm · 1 bed, 4.0m wide Flex 10.843.2sqm · 1–2 bed Family 13.554.0sqm · 2 bed

Close view of charcoal vertical cladding and sliding doors on a Family 13.5 modular home — Charcoal cladding and sliding doors

How pricing works

Questions

Granny flats in Logan, answered.

Do I need council approval for a granny flat in Logan?

Usually not. Under the Logan Planning Scheme 2015, a secondary dwelling that meets all requirements is typically accepted development, so no development application is needed. You still need building approval from a private building certifier plus plumbing approval, generally a matter of weeks. A development application is only needed if the design cannot comply, or an overlay such as flood mapping affects your lot.

How big can a granny flat be in Logan?

Up to 70sqm of gross floor area in a residential zone on lots under 1,000sqm, or up to 100sqm on larger lots, under the Logan Planning Scheme 2015. Gross floor area excludes garages, carports, decks and patios, so usable covered space stretches further. The flat must sit beside, behind or within the main house, not in front, and within 20m if detached.

Can I rent out a granny flat in Logan?

Yes. Logan City Council guidance confirms secondary dwellings can be occupied by a different household and independently rented out, consistent with the Queensland statewide change of 26 September 2022. The dwelling must meet building standards for separate households, including fire separation, which your certifier confirms during building approval.

What is the difference between a secondary dwelling and an auxiliary unit in Logan?

Logan runs both. A secondary dwelling shares the lot and services with the main house and is typically accepted development with no minimum lot size. An auxiliary unit is a separate category with its own rules, including a 450sqm minimum lot and 15m frontage. Most modular granny flats proceed as secondary dwellings, and we confirm the right category for your block.

Keep reading

Nearby councils and the detail.

Next step

Start with the site, not the brochure.

A Site Check tells you what your land allows before you spend anything on design. Straight answer, your address, no obligation.

Start a Site Check See the range