Granny Flat Design
Buildana Haven
60m² · 2 bed · 1 bath · indicative $210,000 from
All floor plans and room sizes are fully customisable.
About this design
The Haven is a 60m² design with 2 bedrooms, living space, bathroom and separate laundry. Solid proportions. The kind of layout you can furnish without compromise — bedrooms that fit real furniture, a kitchen that actually has bench space.
Haven is safety and refuge. A granny flat, by definition, is exactly that—a place of security for family or income. This 60m² design with two beds and one bath is built to deliver on that promise. Secure. Functional. Reliable. You're not gambling on this space. You're building it with Buildana—meaning it's built right, it's built to last, and it actually delivers the value you're after.
That's what Haven represents—a home built with genuine care.
Room dimensions
What's included as standard
The Haven comes fully specced. Buildana doesn't do base-grade builds that look good on paper and cost twice as much to actually finish. What's listed below is what you get — no hidden upgrades required.
Bathroom Inclusions
- •Floor to ceiling wall tiles, including 300 x 600 ceramic tile options.
- •Stylus Banksia back to wall dual flush wc.
- •750mm polyurethane vanity with stone top, drop-in sink & mirror over.
- •Look vanity and shower mixers.
- •Look towel rail & toilet roll holder.
- •Framed shower screen.
- •Light, fan and heater combination.
Kitchen Inclusions
- •Sprayed polyurethane doors and panels (any colour of your choice).
- •10m cabinets includes upper, lower & overhead fridge cabinets & pantry.
- •600mm full length pantry with microwave space.
- •Laminate benchtop, tiled splashback – includes 300 x 600 options.
- •Westinghouse oven and ceramic cooktop (gas cooktops where available).
- •Ducted slide out rangehood (Euromaid), Clark 1 3/4 bowl with ‘look’ mixer.
Upgrade options
Tick what you want — your indicative total updates live. Final fixed price comes back in your formal proposal after a site assessment.
Exterior finish system
Choose the wall system for the external envelope. Pricing below is calculated against this design's external wall area — approximately 78m² (perimeter 34.0m × 2.7m wall height, less 15% for openings). Standard polystyrene-render is included; Hebel, face brick and brick-render are priced as upgrades over standard.
Foamboard polystyrene cladding system finished with cement render and texture coat. Included in the base price — light, fast to install, and the standard exterior on every Buildana granny flat.
Ceiling height
Standard ceiling height is 2.4m. Higher ceilings make small footprints feel larger and lift natural light through windows. Pricing below is calculated against this design's external perimeter 34.0m, covering the extra wall framing, plasterboard, render/cladding and cornice/painting needed to raise the envelope.
Standard ceiling height across all Buildana granny flats — already 100mm taller than the BCA minimum for habitable rooms. Included in the base price.
Doors & highlight windows
Door height and highlight-window upgrades. Tall doors are typically chosen alongside the 2.7m or 3.0m ceiling upgrade so the proportions stay right.
Slim 300 x 600mm highlight windows for natural light to bathrooms, ensuites, hallways, walk-in robes or above kitchen benches. Frosted or clear glazing. $1,100 each, supplied and installed. Pick how many you'd like below.
Premium fitout
Lift the standard spec to higher-end finishes.
Air conditioning
Choose how the granny flat is cooled. The standard living split is included in your base price.
Included as standard. Wall-mount inverter split unit to the living area, sized to the room load.
Outdoor & site
Pricing varies with site conditions, falls, and existing services. Final figures confirmed in writing after a site visit.
Compliance, services & metering
Almost always required for tenanted secondary dwellings. Pre-ticked by default.
Add-on rooms & layout changes
Layout extensions are quoted from your block survey — they may need a fresh CDC/DA pathway.
Common questions
Is Haven a good fit for elderly parents who want privacy?
Haven's the design we recommend for parents moving onto the property. The entry door isn't visible from the main house's side windows, the living looks toward the back garden rather than across the yard, and the bedroom side is the quietest face of the building. Add the level-entry shower upgrade and the wider bathroom door and it's set up for the next twenty years.
Can I customise the Haven floor plan before contract?
Yes. Every dimension and room layout is fully customisable up to the point we lock structural drawings for engineering. Most clients adjust at least one room — bedroom 2 sizing, bathroom door direction, kitchen length. Bigger changes (adding a bedroom, removing the porch, splitting the laundry off) need a fresh layout pass and may shift the indicative price. Small changes don't.
How long does it take to build the Haven?
Allow about 14–18 weeks on site once the slab is poured, plus 6–10 weeks for design, engineering, BASIX, CDC or DA, and pre-construction. Total wall-clock from signed proposal to handover is typically 5–7 months for the Haven, weather and council pace dependent. We update the program weekly during construction so you can see exactly where the build is up to.
Is the Haven BASIX and SEPP-compliant?
Yes. Every Buildana design is built to current BASIX targets (5-star minimum as standard, 7-star available as an upgrade) and within SEPP (Housing) 2021 thresholds (60m² internal, single storey, single secondary dwelling per lot). We run BASIX modelling specific to your block's orientation and shading before lodging — not a generic certificate.
Request a formal proposal for the Haven
Pick your upgrades, send through your details, and we'll come back with a fixed-price proposal — usually within 3 business days.