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21 English Avenue Castle Hill NSW 2154
BASIX certificate and NatHERS rating
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This home has a NatHERS rating of 7.2 stars out of 10. Its BASIX certificate commits it to 3.2 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 target, scoring 88 against 72.
Key features
- Windows
- 22 windows and glazed doors
- Wall insulation
- R2.5
- Roof and ceiling insulation
- Ceiling R2.5, R6, roof Construction Insulation Reflective wrap* Roof Tiles Timber Frame Foil, Gap Above, Reflective Side Down, Anti-glare Up, dark colour
- Hot water
- Electric heat pump with a performance of 21 to 25 STCs or better
- Air conditioning and heating
- 3-phase airconditioning (living area and bedroom)
BASIX certificate
- Energy score
- 88 (target 72)
- Water score
- 40 (target 40)
- Materials score
- -50
- Heating load
- 18 MJ/m² a year
- Cooling load
- 10 MJ/m² a year
- Bedrooms
- 5
- Conditioned floor area
- 225.7 m²
- Unconditioned floor area
- 13.1 m²
- Site area
- 702 m²
- Roof area
- 241 m²
- Garden area
- 386 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Electric heat pump with a performance of 21 to 25 STCs or better
- Solar panels
- 3.2 kW
- Rainwater tank
- 3,000 litres
- Fixtures
- Showerheads 5 star, toilets 3 star, kitchen taps 3 star, basin taps 3 star
- LED lighting
- Yes
- Cooktop
- Gas
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 46.7 m², single glazing 5.8 m², double glazing 40.9 m²
Heating
- Living area: 3-phase airconditioning; Energy rating: EER 3.5 - 4.0
- Bedroom: 3-phase airconditioning; Energy rating: EER 3.5 - 4.0
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, waffle pod slab (no added insulation)
- Floor: suspended floor above open subfloor, particle board; frame: light steel frame (fibreglass batts or roll)
- Floor: above habitable rooms or mezzanine, particle board; frame: light steel frame (fibreglass batts or roll)
- Floor: suspended floor above garage, particle board; frame: light steel frame (fibreglass batts or roll)
- Garage floor: concrete slab on ground, waffle pod slab (no added insulation)
- External wall: brick veneer; frame: light steel frame (fibreglass batts or roll)
- External wall: framed (fibre cement sheet or boards); frame: light steel frame (fibreglass batts or roll)
- Internal wall: plasterboard; frame: light steel frame (fibreglass batts or roll)
- Internal wall: plasterboard; frame: light steel frame (no added insulation)
- Ceiling and roof: flat ceiling / pitched roof, framed - terracotta tiles , timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil/sarking.)
Certificate 1838334S_04, issued 21 August 2026, from the council's DA documents.
NatHERS certificate
- Star rating
- 7.2 stars
- Rated with
- BERS Pro v5.2.6 (3.23)
- Rated on
- 21 Aug 2026
- Wall insulation
- R2.5
- Ceiling insulation
- R2.5, R6
- Floor insulation
- R2.5
- Living room glazing by direction
- NE 5.8 m², SE 8.2 m², SW 2.7 m², NW 4.3 m²
- All glazing by direction
- NE 11 m², SE 10.5 m², SW 10.1 m², NW 13.6 m²
Roof
- Construction Insulation Reflective wrap* Roof Tiles Timber Frame Foil, Gap Above, Reflective Side Down, Anti-glare Up, dark colour
Window schedule
- LOUNGE STG-006-339-001: 1,800 × 2,400 mm facing NW
- PR STG-002-003-001 W1 PR: 1,500 × 600 mm facing SW
- GUEST STG-006-339-001: 1,000 × 1,800 mm facing SW
- GAL STG-006-339-001 W1 GAL: 700 × 1,400 mm facing NE
- GAL STG-074-014-001 W2 GAL: 2,000 × 800 mm facing SE
- KITCHEN: 2,400 × 2,400 mm facing SE
- Kitchen/Living STG-004-031-001 D1 FAMILY: 2,400 × 2,400 mm facing NE
- Kitchen/Living STG-074-014-001 W1 FAMILY: 2,000 × 1,200 mm facing SE
- Kitchen/Living STG-006-339-001 W1 DINING: 1,500 × 1,800 mm facing SW
- Bedroom 1 STG-004-031-001 D1 BED: 2,200 × 1,500 mm facing NW
- BED: 2,200 × 455 mm facing NW
- BED: 2,200 × 455 mm facing NW
- Bedroom 1 STG-074-014-001 W1 BED: 1,200 × 900 mm facing NW
- BED: 1,200 × 2,400 mm facing NW
- BED: 1,500 × 600 mm facing SW
- BED: 1,200 × 1,400 mm facing SW
- Bedroom 3 STG-006-339-001 W1 BED: 600 × 2,400 mm facing NE
- BED: 1,000 × 700 mm facing SE
- Bedroom 4 STG-006-339-001 W1 BED: 900 × 2,100 mm facing NE
- BED: 1,500 × 600 mm facing NE
- Bedroom 2 STG-006-339-001 W1 BED: 600 × 2,400 mm facing SW
- BED: 1,000 × 700 mm facing SW
Certificate 0012856605-02, issued 21 August 2026, from the council's DA documents. Verify this certificate
Other certificates for this address
BASIX certificate, certificate 1838334S_03, issued 16 July 2026
BASIX certificate
- Energy score
- 88 (target 72)
- Water score
- 40 (target 40)
- Materials score
- -50
- Heating load
- 18 MJ/m² a year
- Cooling load
- 10 MJ/m² a year
- Bedrooms
- 5
- Conditioned floor area
- 225.7 m²
- Unconditioned floor area
- 13.1 m²
- Site area
- 702 m²
- Roof area
- 241 m²
- Garden area
- 386 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Electric heat pump with a performance of 21 to 25 STCs or better
- Solar panels
- 3.2 kW
- Rainwater tank
- 3,000 litres
- Fixtures
- Showerheads 5 star, toilets 3 star, kitchen taps 3 star, basin taps 3 star
- LED lighting
- Yes
- Cooktop
- Gas
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 46.7 m², single glazing 5.8 m², double glazing 40.9 m²
Heating
- Living area: 3-phase airconditioning; Energy rating: EER 3.5 - 4.0
- Bedroom: 3-phase airconditioning; Energy rating: EER 3.5 - 4.0
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, waffle pod slab (no added insulation)
- Floor: suspended floor above open subfloor, particle board; frame: light steel frame (fibreglass batts or roll)
- Floor: above habitable rooms or mezzanine, particle board; frame: light steel frame (fibreglass batts or roll)
- Floor: suspended floor above garage, particle board; frame: light steel frame (fibreglass batts or roll)
- Garage floor: concrete slab on ground, waffle pod slab (no added insulation)
- External wall: brick veneer; frame: light steel frame (fibreglass batts or roll)
- External wall: framed (fibre cement sheet or boards); frame: light steel frame (fibreglass batts or roll)
- Internal wall: plasterboard; frame: light steel frame (fibreglass batts or roll)
- Internal wall: plasterboard; frame: light steel frame (no added insulation)
- Ceiling and roof: flat ceiling / pitched roof, framed - terracotta tiles , timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil/sarking.)
Certificate 1838334S_03, issued 16 July 2026, from the council's DA documents.
NatHERS certificate, certificate 0012856605-01, issued 19 March 2026
NatHERS certificate
- Star rating
- 7.2 stars
- Rated with
- BERS Pro v5.2.6 (3.23)
- Rated on
- 19 Mar 2026
- Wall insulation
- R2.5
- Ceiling insulation
- R2.5, R6
- Floor insulation
- R2.5
- Living room glazing by direction
- NE 5.8 m², SE 8.2 m², SW 2.7 m², NW 4.3 m²
- All glazing by direction
- NE 11 m², SE 10.5 m², SW 10.1 m², NW 13.6 m²
Roof
- Construction Insulation Reflective wrap* Roof Tiles Timber Frame Foil, Gap Above, Reflective Side Down, Anti-glare Up, medium colour
Window schedule
- LOUNGE STG-006-339-001: 1,800 × 2,400 mm facing NW
- PR STG-002-003-001 W1 PR: 1,500 × 600 mm facing SW
- GUEST STG-006-339-001: 1,000 × 1,800 mm facing SW
- GAL STG-006-339-001 W1 GAL: 700 × 1,400 mm facing NE
- GAL STG-074-014-001 W2 GAL: 2,000 × 800 mm facing SE
- KITCHEN: 2,400 × 2,400 mm facing SE
- Kitchen/Living STG-004-031-001 D1 FAMILY: 2,400 × 2,400 mm facing NE
- Kitchen/Living STG-074-014-001 W1 FAMILY: 2,000 × 1,200 mm facing SE
- Kitchen/Living STG-006-339-001 W1 DINING: 1,500 × 1,800 mm facing SW
- Bedroom 1 STG-004-031-001 D1 BED: 2,200 × 1,500 mm facing NW
- BED: 2,200 × 455 mm facing NW
- BED: 2,200 × 455 mm facing NW
- Bedroom 1 STG-074-014-001 W1 BED: 1,200 × 900 mm facing NW
- BED: 1,200 × 2,400 mm facing NW
- BED: 1,500 × 600 mm facing SW
- BED: 1,200 × 1,400 mm facing SW
- Bedroom 3 STG-006-339-001 W1 BED: 600 × 2,400 mm facing NE
- BED: 1,000 × 700 mm facing SE
- Bedroom 4 STG-006-339-001 W1 BED: 900 × 2,100 mm facing NE
- BED: 1,500 × 600 mm facing NE
- Bedroom 2 STG-006-339-001 W1 BED: 600 × 2,400 mm facing SW
- BED: 1,000 × 700 mm facing SW
Certificate 0012856605-01, issued 19 March 2026, from the council's DA documents. Verify this certificate
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