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Home report
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79 George Mobbs Drive Castle Hill NSW 2154
BASIX certificate and NatHERS rating
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This home has a NatHERS rating of 7.4 stars out of 10. Its BASIX certificate commits it to 6 kW of solar panels and a 5,000 litre rainwater tank. Its NatHERS certificate lists insulation in the external walls, ceiling and floor. It beat its BASIX energy target, scoring 87 against 72.
Key features
- Windows
- 30 windows and glazed doors: VELUX FS - Fixed Skylight DG 3mm LoE 366 / 8.5mm Argon Gap / 5.36mm Clear La
- Wall insulation
- R2.2
- Roof and ceiling insulation
- Ceiling R5, R3, roof Construction Insulation Reflective wrap* Waterproofing Membrane No Insulation, Only an Air Gap, medium colour
- Hot water
- Gas instantaneous with a performance of 5 stars
- Air conditioning and heating
- 3-phase airconditioning (living area and bedroom)
BASIX certificate
- Energy score
- 87 (target 72)
- Water score
- 40 (target 40)
- Thermal performance
- Pass
- Materials score
- -49
- Heating load
- 9 MJ/m² a year
- Cooling load
- 17 MJ/m² a year
- Bedrooms
- 5
- Conditioned floor area
- 334.5 m²
- Unconditioned floor area
- 13.4 m²
- Site area
- 711 m²
- Roof area
- 230 m²
- Garden area
- 333 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Gas instantaneous with a performance of 5 stars
- Solar panels
- 6 kW
- Rainwater tank
- 5,000 litres
- Fixtures
- Showerheads 4 star, toilets 4 star, kitchen taps 5 star, basin taps 5 star
- LED lighting
- Yes
- Cooktop
- Gas
- Maximum glazing
- aluminium frames 146 m², double glazing 146 m²
Heating
- Living area: 3-phase airconditioning; Energy rating: EER 3.0 - 3.5
- Bedroom: 3-phase airconditioning; Energy rating: EER 3.0 - 3.5
Cooling
- Living area: 3-phase airconditioning; Energy rating: EER 3.0 - 3.5
- Bedroom: 3-phase airconditioning; Energy rating: EER 3.0 - 3.5
Construction and insulation
- Floor: concrete slab on ground, conventional slab (no added insulation)
- Floor: suspended floor above open subfloor, treated softwood; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Floor: above habitable rooms or mezzanine, treated softwood; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Floor: suspended floor above garage, treated softwood; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Garage floor: concrete slab on ground (no added insulation)
- External wall: brick veneer; frame: timber - H2 treated softwood. all external walls fibreglass batts or roll+ foil/sarking
- External garage wall: brick veneer; frame: timber - H2 treated softwood (fibreglass batts or roll+ foil/sarking)
- Internal wall: plasterboard; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Internal wall: plasterboard; frame: timber - H2 treated softwood (no added insulation)
- Ceiling and roof: flat ceiling / pitched roof, framed - metal roof, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
Certificate 1817371S_02, issued 13 April 2026, from the council's DA documents.
NatHERS certificate
- Star rating
- 7.4 stars
- Rated with
- BERS Pro v5.1.9 (3.23)
- Rated on
- 13 Apr 2026
- Wall insulation
- R2.2
- Ceiling insulation
- R5, R3
- Floor insulation
- R2.5, R1, R2.2, R3
- LED downlights
- 158
- All glazing by direction
- NE 62.7 m², SE 2.6 m², SW 65.2 m², NW 15.5 m²
Roof
- Construction Insulation Reflective wrap* Waterproofing Membrane No Insulation, Only an Air Gap, medium colour
- Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour
Window types
- VEL-011-01 W VELUX FS - Fixed Skylight DG 3mm LoE 366 / 8.5mm Argon Gap / 5.36mm Clear La: U-value 2.6, SHGC 0.24
Window schedule
- KIT/DIN/FAM BRD-082-83 A W3: 3,000 × 3,000 mm facing NE
- KIT/DIN/FAM BRD-035-56 A D2: 3,000 × 3,000 mm facing NE
- KIT/DIN/FAM BRD-035-56 A D2: 3,000 × 3,000 mm facing NE
- KIT/DIN/FAM BRD-035-56 A D2: 3,000 × 3,000 mm facing NE
- KIT/DIN/FAM BRD-074-77 A W6: 3,400 × 2,000 mm facing SW
- KIT/DIN/FAM BRD-084-09 A D1: 3,441 × 2,410 mm facing SW
- KIT/DIN/FAM BRD-082-83 A W4: 3,000 × 1,100 mm facing NW
- KIT/DIN/FAM BRD-082-83 A W4: 3,000 × 1,100 mm facing NW
- PANTRY BRD-066-55 A W5: 2,000 × 1,500 mm facing NE
- GUEST BED BRD-082-83 A W1: 3,000 × 3,095 mm facing SW
- THEATRE BRD-082-83 A W2: 3,000 × 1,000 mm facing NW
- THEATRE BRD-082-83 A W2: 3,000 × 1,000 mm facing NW
- THEATRE BRD-082-83 A W3: 3,000 × 3,000 mm facing NE
- THEATRE BRD-035-56 A D2: 3,000 × 3,000 mm facing SW
- MASTER ENS1 BRD-082-83 A W9: 1,900 × 1,900 mm facing NE
- MASTER BED1 BRD-035-56 A D5: 2,400 × 3,000 mm facing SW
- MASTER BED1 BRD-082-83 A W8: 1,800 × 800 mm facing NW
- MASTER BED1 BRD-082-83 A W8: 1,800 × 800 mm facing NW
- BED 1 BRD-082-83 A W11: 900 × 3,000 mm facing NE
- HOME OFFICE BRD-074-77 A W12: 1,900 × 1,900 mm facing NE
- SITTING BRD-074-77 A W7: 2,700 × 2,378 mm facing SW
- SITTING BRD-035-56 A D4: 2,400 × 2,340 mm facing SW
- BED 2 BRD-082-83 A W14: 900 × 2,500 mm facing NE
- BED 2 BRD-082-83 A W15: 1,800 × 500 mm facing SE
- BED 2 BRD-082-83 A W9: 1,800 × 500 mm facing SE
- MASTER BED2 BRD-035-56 A D5: 2,400 × 3,000 mm facing SW
- MASTER ENS2 BRD-066-55 A W16: 600 × 1,400 mm facing SE
- ENTRY VOID BRD-074-77 A W6: 2,700 × 2,000 mm facing SW
- BATH BRD-082-83 A W13: 900 × 1,900 mm facing NE
- HER/HIS WIR BRD-082-83 A W10: 900 × 900 mm facing NE
Certificate 0012300455-02, issued 13 April 2026, from the council's DA documents. Verify this certificate
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