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31 Gooden Drive Baulkham Hills NSW 2153
BASIX certificate and NatHERS rating
This home's BASIX certificate commits it to 3.6 kW of solar panels and a 9,000 litre rainwater tank. It beat its BASIX energy and water targets, scoring 75 against 72 for energy and 51 against 40 for water.
Key features
- Hot water
- Electric boosted solar
- Air conditioning and heating
- 1-phase airconditioning, ducted (living area and bedroom)
Built by Oj Building.
BASIX certificate
- Energy score
- 75 (target 72)
- Water score
- 51 (target 40)
- Thermal performance
- Pass
- Materials score
- -92
- Bedrooms
- 4
- Conditioned floor area
- 259.5 m²
- Unconditioned floor area
- 33 m²
- Site area
- 713 m²
- Roof area
- 225 m²
- Garden area
- 298 m²
- Hot water
- Electric boosted solar
- Solar panels
- 3.6 kW
- Rainwater tank
- 9,000 litres
- Fixtures
- Showerheads 4 star, toilets 4 star, kitchen taps 6 star, basin taps 6 star
- LED lighting
- Yes
- Clothes line
- Yes
Heating
- Living area: 1-phase airconditioning - ducted; Energy rating: 6 star (average zone)
- Bedroom: 1-phase airconditioning - ducted; Energy rating: 6 star (average zone)
Cooling
- Living area: 1-phase airconditioning - ducted; Energy rating: 6 star (average zone)
- Bedroom: 1-phase airconditioning - ducted; Energy rating: 6 star (average zone)
Construction and insulation
- Floor: concrete slab on ground, conventional slab (no added insulation)
- Floor: above habitable rooms or mezzanine, hard wood; frame: timber - H2 treated softwood (no added insulation)
- Garage floor: concrete slab on ground, 30% cement substitute (not specified nil)
Certificate 1780162S, issued 16 January 2025, from the council's DA documents.
Other certificates for this address
BASIX certificate (alterations and additions), certificate A1815713, issued 3 October 2025
BASIX certificate (alterations and additions)
This BASIX certificate is for alterations and additions, such as an extension or a pool, rather than a whole new house.
- LED lighting
- Yes
Construction and insulation
- Concrete slab on ground floor (no added insulation)
- External wall: cavity brick (no added insulation)
- Flat ceiling, pitched roof ceiling: R1.19 (up), roof: 50 mm foil backed polystyrene board light (solar absorptance < 0.475)
Certificate A1815713, issued 3 October 2025, from the council's DA documents.
BASIX certificate (alterations and additions), certificate A1786241, issued 6 March 2025
BASIX certificate (alterations and additions)
This BASIX certificate is for alterations and additions, such as an extension or a pool, rather than a whole new house.
- LED lighting
- Yes
Construction and insulation
- Concrete slab on ground floor (no added insulation)
- External wall: cavity brick (no added insulation)
- Flat ceiling, pitched roof ceiling: R1.19 (up), roof: 50 mm foil backed polystyrene board light (solar absorptance < 0.475)
Certificate A1786241, issued 6 March 2025, from the council's DA documents.
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