Last updated October 2026
Choosing between a Luxe vs Signature granny flat comes down to how much extra comfort you want for an extra $27,000. Signature is a turnkey G-Flat™ for $238,000, and Luxe is $265,000. Luxe includes everything in Signature, then adds higher ceilings, more natural light, premium appliances and underfloor heating. This guide lays out both finish levels side by side so you can decide with confidence.
Key takeaways
- Signature costs $238,000 and Luxe costs $265,000 turnkey, a difference of $27,000.
- Luxe includes everything in Signature, plus a list of premium upgrades.
- Both share the same five floor plans and the same core inclusions found in every G-Flat™.
- Signature suits buyers who want a well-finished home with a lower build cost.
- Luxe suits buyers who want a granny flat that feels closer to a full-size home.
What stays the same in both finish levels
Before comparing the differences, it helps to know what does not change. Every G-Flat™ is a 60m², two bedroom turnkey home, and both Signature and Luxe include:
- the building permit and all required reports
- all plans
- connection of services up to 10m from the main house
- stone benchtops and soft-close cabinetry
- SPC hybrid flooring
- double-glazed, powder-coated aluminium windows
- Colorbond fascia and guttering
- a reverse cycle split system
- a 10-year structural warranty and a 6-month maintenance guarantee
You can read more about each item in our guide to granny flat inclusions in Melbourne.
The same five floor plans
Signature and Luxe are available across all five G-Flat™ floor plans, and every plan costs the same within a finish level:
- Stella: an L-shaped plan for corner or irregular blocks.
- Aurora: long and narrow for tight or side-access blocks, with a walk-in robe in bedroom one.
- Lana: a balanced layout that fits most backyards.
- Lana 2: the Lana layout with a second bathroom.
- Sirius: a square plan with large 4 x 3m bedrooms and an L-shaped kitchen.
Pick the layout that suits your block first, then choose the finish. Our G-Flat™ layout and finish guide explains each plan in detail, and the Stella corner block guide shows how one plan solves a tricky site.
What the Signature finish includes
Signature builds on our Affordable finish level with a set of practical upgrades. It includes:
- 40mm stone benchtops
- 20m² of decking
- a bathroom skylight
- a semi-frameless shower
- a floating vanity with shaving cabinet
- 9mm SPC hybrid flooring
- Electrolux appliances
- a 5kW split system
- a cantilevered awning
- a dark colour scheme option
It also keeps the Affordable base of steel stumps with a timber subfloor, a skillion roof, 2.7m ceilings and 2.4m built-in robes.
What Luxe adds on top of Signature
Luxe includes every Signature item, then adds:
- 3m ceilings
- skylights in both the kitchen and bathroom
- a curved kitchen island
- Bosch appliances
- floor-to-ceiling tiles in the bathroom
- underfloor heating
- a frameless shower
- a premium floating toilet
- a multi-head split system serving all rooms
- 40m² of decking
- Low-E glass
For a closer look at these upgrades, read what makes a Luxe granny flat worth the upgrade.
Luxe vs Signature granny flat comparison table
Here is how the two finish levels differ.
| Feature | Signature ($238,000) | Luxe ($265,000) |
|---|---|---|
| Ceiling height | 2.7m | 3m |
| Skylights | Bathroom | Kitchen and bathroom |
| Kitchen | 40mm stone benchtops | 40mm stone plus curved island |
| Appliances | Electrolux | Bosch |
| Shower | Semi-frameless | Frameless |
| Bathroom extras | Floating vanity with shaving cabinet | Adds floor-to-ceiling tiles and a premium floating toilet |
| Heating and cooling | 5kW split system | Multi-head split in all rooms, plus underfloor heating |
| Decking | 20m² | 40m² |
| Glazing | Double glazed | Double glazed with Low-E glass |
| Floor plans | All five | All five |
Prices are a guide only and depend on your site. Sites 70km or more from the Melbourne CBD attract a 12.5% regional surcharge. A free site assessment confirms the price for your block.
For the full price list across all four finish levels, see granny flat pricing in Victoria.
Luxe vs Signature granny flat: who each one suits
The right choice depends on who will live in it, your budget and how the new home will sit beside the main house.
Signature may suit you if:
- you want a well-finished home and would rather keep the build cost lower
- you plan to rent the granny flat and want durable, easy-care finishes
- your household is comfortable with a single split system and 2.7m ceilings
- you would like the dark scheme option for a modern look
Luxe may suit you if:
- you are building for parents who will spend most of their day at home and value warmth underfoot and heating in every room
- you want the granny flat to match a newer or more premium main house
- you want more natural light and a higher, more open feel
- you plan to entertain outdoors and would use 40m² of decking
Luxe is our top-selling finish level, but plenty of homeowners are happy with Signature once they see it in person.
Choosing for parents or family members
If the granny flat is for ageing parents, comfort features matter. Underfloor heating, a frameless shower and climate control in every room can make daily living easier, especially through Melbourne winters. Our guide to granny flat layouts for elderly parents covers the design side, and multi-gen living on one block looks at sharing a site with family.
Choosing for renting
If you plan to rent the granny flat, think about durability, maintenance and what local tenants look for. Rents vary by suburb, finish and demand, so a local property manager can give you a rental appraisal for either option. Both finishes include the core features tenants expect, such as a full kitchen, heating and cooling and quality flooring. Before you lease, read how to legally rent out a granny flat in Victoria, as residential tenancy laws apply.
Matching the main house
A granny flat sits in the same backyard as your home, so the look matters. If your main house has high ceilings, premium appliances and a modern finish, Luxe may feel more in keeping. If your home is more modest, or you prefer a darker look, Signature with the dark scheme option can sit comfortably beside it. Seeing the finishes in person helps, which is why we suggest a visit to our display G-Flat™ before you decide.
Thinking about budget
The $27,000 gap between Signature and Luxe is the main trade-off. Ask yourself which Luxe upgrades you would use every day. If underfloor heating, extra skylights and a larger deck matter to you, Luxe may be worth it. If not, Signature still gives you a complete, comfortable home.
Most homeowners fund a build through savings, equity or a construction loan. Our guide on how to finance a granny flat build covers the main options.
Planning rules are the same for both
Your finish level does not change the planning rules. In Victoria, a small second dwelling must be 60m² or less, include a kitchen, bathroom and toilet, and sit on the same lot as an existing home. Most residential zones do not need a planning permit, though lots under 300m² and some overlays may. A building permit is required either way. The Victorian Government small second dwellings page sets out the official rules.
A G-Flat™ in either finish takes approximately 5 months end to end, from planning through to handover.
Frequently asked questions
What is the price difference between Luxe and Signature?
Signature is $238,000 and Luxe is $265,000 turnkey, a difference of $27,000. Your site assessment confirms the final price.
Does Luxe include everything in Signature?
Yes. Luxe includes every Signature item, plus upgrades such as 3m ceilings, underfloor heating and Bosch appliances.
Are the floor plans different?
No. Both finish levels are available across all five G-Flat™ floor plans, and each plan costs the same within a finish level.
Which is better for elderly parents?
Either can work. Luxe adds underfloor heating, a frameless shower and heating in every room, which can make daily living more comfortable.
Can I see both finishes before deciding?
Yes. Visiting a display G-Flat™ is the easiest way to compare finishes in person.
Compare Luxe and Signature in person
The easiest way to settle your Luxe vs Signature granny flat decision is to see and feel the finishes, then get a price for your block. Book your free site assessment or visit our display G-Flat™.