Granny Flat Floor Plans Queensland: Every Design You Need to See in 2026
Queensland granny flat floor plans range from compact 40m² single-bedroom layouts to spacious 80m² dual-living designs all subject to an 80m² maximum under most SEQ council rules. Compact Homes offers 11 architecturally designed floor plans built specifically for Queensland conditions, across Brisbane, Gold Coast, Sunshine Coast, and the Scenic Rim. This guide covers every design, what the planning rules mean for your block, and how to choose the right granny apartment plan for your property and goals.
Why Does Your Floor Plan Choice Matter So Much?
Most people choose a granny flat for one of three reasons: to house family, to generate rental income, or to add resaleable value to their property. The floor plan you choose affects all three outcomes directly.
A poorly designed layout — even if it fits within Queensland's 80m² limit — can feel cramped, fail to rent well, or simply not suit the needs of whoever is living there. An architecturally designed floor plan, on the other hand, uses every square metre deliberately. Ceiling heights, window placement, the relationship between the kitchen and living space, the position of the laundry — these details separate a granny flat that feels like a home from one that feels like a shed with a bathroom.
Compact Homes has been designing and building secondary dwellings across Southeast Queensland for over 11 years. Every floor plan in our range was designed by architects, not adapted from generic kits. That distinction matters when you're adding a permanent structure to your property.
What Are Queensland's Granny Flat Regulations — and How Do They Affect Your Floor Plan?
Before choosing a floor plan, it helps to understand the planning framework in Queensland — because it directly affects what you can build and where.
Size limits: In most metropolitan Queensland councils, secondary dwellings are capped at 80m² of gross floor area (GFA). This excludes patios, carports, and covered outdoor areas. In some rural Brisbane zones, the limit extends to 100m². If your chosen design sits at or under 80m², you're working within the standard acceptable development rules across most of SEQ.
Setback requirements: Granny flats generally require a minimum 1.5m setback from side boundaries and 3m from the rear boundary, though this varies by council and wall height. A design that's 6m wide will have different setback implications on a 12m-wide lot than on an 18m-wide one.
Approval pathway: Many Queensland councils classify secondary dwellings as "accepted development" if they meet size, setback, and siting criteria — meaning no Development Application (DA) is required, only a building approval from a licensed private building certifier. If your property has overlays (flood, bushfire, character, etc.) a DA is likely needed regardless of size.
Our team at Compact Homes has navigated this approval process across Brisbane, Gold Coast, Sunshine Coast, Ipswich, and the Scenic Rim. For specific rules in your area, our Brisbane granny flat rules guide and Gold Coast regulations guide are detailed starting points.
What Granny Flat Floor Plans and Granny Apartment Plans Does Compact Homes Offer?
Here is every design currently available. All are architecturally designed, engineered for Queensland conditions. Whether you're looking for a compact granny apartment plan or a full dual-living layout, there's a design in this range that fits.
1-Bedroom Floor Plans
Seville 40
A precision-engineered 40m² single-bedroom layout. The Seville 40 is the most approval-friendly design in the range its compact footprint fits on lots where larger designs can't, and it comfortably meets accepted development thresholds across virtually every SEQ council. Ideal as an ageing-in-place dwelling, a studio rental, or a work-from-home retreat.
Seville 50
The Seville 50 adds 10m² over the Seville 40, giving you a more generous bedroom, a proper laundry, and expanded kitchen bench space without sacrificing the simplicity that makes single-bedroom designs easy to approve and fast to build. At 50m², it remains comfortably inside Queensland's accepted development thresholds and is well-suited to investor buyers seeking a high-yield rental.
2-Bedroom Floor Plans
Two-bedroom designs represent the highest-demand category in Queensland. They suit a wider range of tenants, generate stronger rental yields, and tend to hold their value better over time. All of the following sit at or under the 80m² GFA limit.
Valencia 60
The Valencia 60 is 60m² of considered architectural design. Two bedrooms, open-plan living and dining, a full kitchen, and a bathroom configured for maximum usability. The Valencia 60 is one of the most popular granny flat designs in our Brisbane and Gold Coast builds — its proportions feel significantly larger than 60m² because of how the spaces connect.
Amber 60
The Amber 60 shares the same 60m² footprint as the Valencia but takes a different architectural approach slightly wider, with a kitchen that opens more directly to the living space. Suited to properties where the orientation means natural light enters from the side rather than the rear.
Olive 60
The Olive 60 is purpose-designed for dual living. Two bedrooms, two full bathrooms meaning the primary home and the secondary dwelling operate completely independently. This is the design buyers ask about most on the Gold Coast, where dual living configurations attract genuine investor premiums. The Olive 60 is 60m² of liveable, functional, architecturally resolved space.
Amber 80
At 80m², the Amber 80 reaches the Queensland GFA ceiling and uses every square metre. Generous bedroom sizes, full kitchen with island bench, a laundry with external access, and a covered outdoor area. The Amber 80 is the choice for buyers who want their granny flat to feel genuinely premium comparable to a high-end inner-city apartment in its fitout and finish.
Olive 80
The Olive 80 is the Olive 60's bigger sibling 80m², two bedrooms, two full bathrooms, designed expressly for dual living on larger Gold Coast and Brisbane lots. At this size, the dual-living configuration allows for genuine separation between the main home and the secondary dwelling, with private entries, separate outdoor spaces, and full utility independence.
Jasper 70
The Jasper is 70m² with two bedrooms and two bathrooms. It sits in the sweet spot between the 60m² designs and the 80m² premium range enough space to feel comfortable, small enough to fit on lots where the larger designs don't. A strong choice for Scenic Rim and outer Brisbane properties where lot widths vary.
Onyx 80
Two bedrooms, two bathrooms, 80m². The Onyx 80's exterior aesthetic leans more contemporary — clean lines, a restrained palette, a design that works as well in an inner-Brisbane suburb as it does on an acreage lot.
How Do You Choose the Right Granny Flat Floor Plan for Your Property?
The right design comes down to four things: your lot size and shape, your council's planning rules, who will live in the granny flat, and your investment goals.
For rental income: The Olive 60 and Olive 80's two-bathroom configuration commands a rental premium in Brisbane and the Gold Coast. Two independent bathrooms dramatically increase a tenant's willingness to pay more.
For family living: The Amber 80 or Haven 140 offer the space and finish that a family member expects when they're moving into a permanent home — not a short-term arrangement.
For tight lots or tricky approvals: The Seville 40 or Seville 50 fit where others won't, and their size keeps the approval pathway simple across virtually all SEQ councils.
For architectural design as a point of difference: Every design in the Compact Homes range is architecturally resolved, but the Valencia 60 and Amber 80 in particular draw the most consistent comment from buyers about the quality of the design relative to other granny flats on the market.
Explore the full Compact Homes range, or browse by bedroom count 1 bedroom, 2 bedroom, or the granny flat collection directly.
For region-specific approval guidance, see our Sunshine Coast granny flat guide, Logan Region guide, or Ipswich guide.
Frequently Asked Questions
What is the maximum size for a granny flat floor plan in Queensland? In most metropolitan Queensland councils, the maximum gross floor area for a secondary dwelling is 80m². Some rural and outer Brisbane zones allow up to 100m². Outdoor areas like patios and carports are typically excluded from the GFA calculation. Always confirm with your specific council's planning scheme before choosing a design.
Do I need council approval for a granny flat in Queensland? Most Queensland councils classify secondary dwellings as accepted development if they meet size, setback, and siting criteria — which means no formal Development Application is required. A building approval from a licensed private certifier is always required. If your property has environmental or character overlays, a DA may be needed regardless of size.
What is the most popular granny flat floor plan for rental income in Brisbane and Gold Coast? Two-bedroom, two-bathroom designs consistently achieve the strongest rental yields in Brisbane and the Gold Coast. The dual-bathroom configuration means two tenants or a couple and housemate can share comfortably without compromising privacy. The Olive 60 and Olive 80 are Compact Homes' most enquired-about designs for investor buyers for this reason.
How do I choose between the 60m² and 80m² designs? If your lot is tight or your council's setback requirements limit your buildable area, the 60m² designs often fit where the 80m² can't. If space isn't the constraint, the 80m² designs — particularly the Amber 80 and Olive 80 — deliver a measurably premium result. The additional 20m² in the right layout makes a significant difference to how the home feels day-to-day.
Ready to Choose Your Floor Plan?
Compact Homes' design team works with Queensland property owners at every stage , from initial floor plan selection through to council approval and construction. With over 11 years of experience building secondary dwellings across Brisbane, Gold Coast, Sunshine Coast, Scenic Rim, and Ipswich, we understand what works on Queensland lots and what doesn't.
View the full floor plan range or contact the team to discuss your property and the right design for it.