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Home report
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135 Cecil Avenue Castle Hill NSW 2154
BASIX certificate and NatHERS rating
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This home has a NatHERS rating of 7 stars out of 10. Its BASIX certificate commits it to 5.8 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 100 against 72.
Key features
- Windows
- 27 windows and glazed doors
- Wall insulation
- R2.7
- Roof and ceiling insulation
- Ceiling R4, R7, R2.5, roof Construction Insulation Reflective wrap* Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour
- Hot water
- Electric heat pump with a performance of 15 to 20 STCs or better
- Air conditioning and heating
- 1-phase airconditioning, ducted (living area and bedroom)
Built by Clarendon Homes.
BASIX certificate
- Energy score
- 100 (target 72)
- Water score
- 40 (target 40)
- Materials score
- -61
- Heating load
- 17 MJ/m² a year
- Cooling load
- 13 MJ/m² a year
- Bedrooms
- 5
- Conditioned floor area
- 318.9 m²
- Unconditioned floor area
- 41.6 m²
- Site area
- 1,055 m²
- Roof area
- 270 m²
- Garden area
- 500 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Electric heat pump with a performance of 15 to 20 STCs or better
- Solar panels
- 5.8 kW
- Rainwater tank
- 3,000 litres
- Fixtures
- Showerheads 3 star, toilets 4 star, kitchen taps 4 star, basin taps 4 star
- LED lighting
- Yes
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 80.8 m², single glazing 41.3 m², double glazing 39.5 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, waffle pod slab (no added insulation)
- 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)
- External garage wall: brick veneer; frame: light steel frame (no added insulation)
- 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 - metal roof, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
Certificate 1847669S_02, issued 22 June 2026, from the council's DA documents.
NatHERS certificate
- Star rating
- 7 stars
- Rated with
- BERS Pro v5.2.6 (3.23)
- Rated on
- 22 Jun 2026
- Wall insulation
- R2.7
- Ceiling insulation
- R4, R7, R2.5
- Floor insulation
- R2.7, R2, R4
- LED downlights
- 30
- Living room glazing by direction
- E 22.6 m², S 21.9 m²
- All glazing by direction
- N 14.7 m², E 30.2 m², S 29.4 m², W 6.5 m²
Roof
- Construction Insulation Reflective wrap* Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour
Window schedule
- Kitchen/Family/ WID-123-022-002: 2,400 × 3,600 mm facing S
- Kitchen/Family/ WID-108-022-002: 2,000 × 2,400 mm facing E
- Kitchen/Family/ WID-108-022-002: 2,000 × 500 mm facing E
- Kitchen/Family/ WID-108-022-002: 2,000 × 500 mm facing E
- Kitchen/Family/ WID-123-022-002: 2,400 × 3,600 mm facing S
- Kitchen/Family/ WID-123-022-002: 2,400 × 3,600 mm facing E
- Butlers/WIP WID-108-004-002: 715 × 2,410 mm facing W
- Living WID-106-003-002: 2,000 × 1,500 mm facing E
- Living WID-102-005-002: 2,000 × 2,100 mm facing E
- Living WID-101-019-003: 2,000 × 800 mm facing S
- Living WID-106-003-002: 2,000 × 1,500 mm facing S
- PDR WID-101-001-002: 1,200 × 600 mm facing E
- Guest WID-102-005-002: 2,000 × 2,400 mm facing N
- Garage WID-102-001-003: 800 × 2,100 mm facing W
- Leisure WID-102-005-002: 1,500 × 800 mm facing S
- VOID/Stairs WID-106-003-002: 1,500 × 1,800 mm facing N
- VOID2 WID-108-022-002: 2,000 × 2,400 mm facing E
- VOID2 WID-108-022-002: 2,000 × 500 mm facing E
- VOID2 WID-108-022-002: 2,000 × 500 mm facing E
- Bedroom 2/WIR WID-102-005-002: 1,500 × 2,400 mm facing N
- Ensuite2/3 WID-101-001-002: 1,200 × 600 mm facing W
- Bedroom 3/WIR WID-102-005-002: 1,200 × 700 mm facing W
- Bedroom 3/WIR WID-102-005-002: 1,200 × 700 mm facing W
- Bedroom 4/WIR WID-102-005-002: 1,500 × 2,400 mm facing S
- Ensuite4 WID-101-001-002: 1,200 × 600 mm facing W
- Bedroom 1/WIR WID-102-005-002: 1,500 × 1,800 mm facing S
- Ensuite WID-102-001-003: 1,500 × 2,400 mm facing N
Certificate 0013006432-01, issued 22 June 2026, from the council's DA documents. Verify this certificate
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