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Home report
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39 Wonga Road Cremorne NSW 2090
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BASIX certificate and NatHERS rating
This home has a NatHERS rating of 7.1 stars out of 10. Its BASIX certificate commits it to 5 kW of solar panels and a 3,000 litre rainwater tank. Its NatHERS certificate lists insulation in the external walls, ceiling and floor. It beat its BASIX energy and water targets, scoring 90 against 72 for energy and 41 against 40 for water.
Key features
- Windows
- 25 windows and glazed doors: Aluminium Fixed Window DG GW 4PbAS2/12Ar/4i89; Aluminium Sliding Window DG GW 4PbAS2/12Ar/4i89; Aluminium Sliding Door DG GW 4PbAS2/12Ar/4i89 and 2 more types
- Wall insulation
- R0.9
- Roof and ceiling insulation
- Ceiling R2, roof Waterproofing Membrane No Insulation, Only an Air Gap, medium colour
- Hot water
- Gas instantaneous with a performance of 5 stars
- Air conditioning and heating
- 1-phase airconditioning, ducted (living area and bedroom)
BASIX certificate
- Energy score
- 90 (target 72)
- Water score
- 41 (target 40)
- Thermal performance
- Pass
- Materials score
- -100
- Heating load
- 11 MJ/m² a year
- Cooling load
- 18 MJ/m² a year
- Bedrooms
- 5
- Conditioned floor area
- 301.6 m²
- Unconditioned floor area
- 4.4 m²
- Site area
- 510 m²
- Roof area
- 222 m²
- Garden area
- 175 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Gas instantaneous with a performance of 5 stars
- Solar panels
- 5 kW
- Rainwater tank
- 3,000 litres
- Fixtures
- Showerheads 3 star, toilets 4 star, kitchen taps 4 star, basin taps 4 star
- LED lighting
- Yes
- Cooktop
- Gas
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 121 m², single glazing 9.3 m², double glazing 111.7 m²
Heating
- Living area: 1-phase airconditioning - ducted; Energy rating: EER 3.0 - 3.5
- Bedroom: 1-phase airconditioning - ducted; Energy rating: EER 3.0 - 3.5
Cooling
- Living area: 1-phase airconditioning - ducted; Energy rating: EER 3.0 - 3.5
- Bedroom: 1-phase airconditioning - ducted; Energy rating: EER 3.0 - 3.5
Construction and insulation
- Floor: concrete slab on ground, conventional slab (no added insulation)
- Floor: above habitable rooms or mezzanine, concrete - suspended; frame: no frame (no added insulation)
- Floor: suspended floor above garage, concrete - suspended; frame: no frame (no added insulation)
- Garage floor: concrete slab on ground (no added insulation)
- External wall: cavity brick; frame: no frame (foil-foam composite board+ foil/sarking)
- External wall: concrete panel/plasterboard; frame: timber - H2 treated softwood (foil-foam composite board+ foil/sarking)
- External garage wall: concrete panel/plasterboard; frame: timber - H2 treated softwood (no added insulation)
- Internal wall: single skin masonry; frame: no frame (no added insulation)
- Ceiling and roof: flat ceiling / flat roof, concrete - plasterboard internal, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: none.)
Certificate 1800987S, issued 23 June 2025, from the council's DA documents.
NatHERS certificate
- Star rating
- 7.1 stars
- Rated with
- BERS Pro v5.2.4 (3.23)
- Rated on
- 12 May 2025
- Wall insulation
- R0.9
- Ceiling insulation
- R2
- Floor insulation
- R0.9, R1
- Living room glazing by direction
- NE 2.2 m², SE 16.8 m², SW 21.7 m², NW 27 m²
- All glazing by direction
- NE 5.6 m², SE 46.4 m², SW 23.9 m², NW 45.2 m²
Roof
- Waterproofing Membrane No Insulation, Only an Air Gap, medium colour
Window types
- BRD-125-300 Aluminium Fixed Window DG GW 4PbAS2/12Ar/4i89: U-value 1.9, SHGC 0.48
- BRD-154-300 Aluminium Sliding Window DG GW 4PbAS2/12Ar/4i89: U-value 2.7, SHGC 0.45
- BRD-035-301 Aluminium Sliding Door DG GW 4PbAS2/12Ar/4i89: U-value 2.3, SHGC 0.47
- BRD-063-001 Aluminium Fixed Window SG 4Clr: U-value 6, SHGC 0.78
- BRD-001-001 Aluminium Sliding Window SG 3Clr: U-value 6.4, SHGC 0.76
Window schedule
- Kit/Din/Tea, window BRD-125-300: 1,600 × 1,400 mm facing NE
- Kit/Din/Tea, window BRD-154-300: 1,600 × 1,400 mm facing SE
- Kit/Din/Tea, window BRD-125-300: 2,700 × 3,600 mm facing SW
- Kit/Din/Tea, window BRD-035-301: 2,800 × 6,000 mm facing NW
- Kit/Din/Tea, window BRD-035-301: 2,850 × 2,800 mm facing NW
- Bathroom, window BRD-063-001: 400 × 600 mm facing NE
- Bathroom, window BRD-001-001: 1,000 × 400 mm facing NW
- Ensuite Guest, window BRD-063-001: 800 × 800 mm facing NE
- Guest Bed, window BRD-035-301: 2,700 × 2,650 mm facing SE
- Lounge, window BRD-035-301: 2,850 × 5,100 mm facing SE
- Lounge, window BRD-125-300: 2,700 × 3,600 mm facing SW
- Lounge, window BRD-154-300: 1,600 × 1,400 mm facing NW
- Butlers Kitchen, window BRD-125-300: 1,600 × 1,400 mm facing SW
- Bed 1, window BRD-125-300: 1,600 × 2,700 mm facing NW
- Hallway, window BRD-125-300: 1,600 × 1,400 mm facing NE
- Ensuite 3, window BRD-063-001: 400 × 600 mm facing NE
- Ensuite 3, window BRD-001-001: 1,000 × 400 mm facing NW
- Bed 3, window BRD-035-301: 2,700 × 2,650 mm facing SE
- Ensuite 2, window BRD-063-001: 2,800 × 1,850 mm facing SE
- Bed 2, window BRD-035-301: 2,700 × 2,900 mm facing SE
- Bed 2, window BRD-154-300: 1,600 × 1,400 mm facing NW
- WIR, window BRD-125-300: 1,600 × 1,400 mm facing SW
- Study, window BRD-154-300: 1,600 × 1,400 mm facing SE
- Ensuite Master, window BRD-063-001: 1,600 × 1,400 mm facing NW
- Master Bed, window BRD-035-301: 2,850 × 3,000 mm facing NW
Certificate 0011909074, issued 12 May 2025, from the council's DA documents.
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