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20 Whipper Street Box Hill NSW 2765
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 a 3,000 litre rainwater tank. Its NatHERS certificate lists insulation in the external walls, ceiling and floor. It beat its BASIX water target, scoring 44 against 40.
Key features
- Windows
- 21 windows and glazed doors: Timber A SG Clear; Aluminium Awning Window DG LB ClrSI 6.38/8/4; Aluminium Sliding Window DG LB Clr 4/10/4 and 2 more types
- Wall insulation
- R2.7
- Roof and ceiling insulation
- Ceiling R4, R7, R3, roof Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour
- Hot water
- Gas instantaneous with a performance of 7 stars
- Air conditioning and heating
- 3-phase airconditioning (living area and bedroom)
Built by Allcastle Homes.
BASIX certificate
- Energy score
- 70 (target 70)
- Water score
- 44 (target 40)
- Materials score
- -66
- Heating load
- 41 MJ/m² a year
- Cooling load
- 19 MJ/m² a year
- Bedrooms
- 4
- Conditioned floor area
- 233.3 m²
- Unconditioned floor area
- 20 m²
- Site area
- 366 m²
- Roof area
- 222 m²
- Garden area
- 92 m²
- Climate zone
- NatHERS climate zone 28
- Hot water
- Gas instantaneous with a performance of 7 stars
- 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 52.9 m², timber frames 1 m², single glazing 5.2 m², double glazing 48.7 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, waffle pod slab (not specified)
- Floor: suspended floor above open subfloor, particle board; frame: timber - H2 treated softwood (not specified)
- Floor: above habitable rooms or mezzanine, particle board; frame: timber - H2 treated softwood (not specified)
- Floor: suspended floor above garage, particle board; frame: timber - H2 treated softwood (not specified)
- Garage floor: concrete slab on ground, waffle pod slab (not specified)
- External wall: AAC veneer; frame: timber - H2 treated softwood (fibreglass batts or roll)
- External wall: framed (fibre cement sheet or boards); frame: timber - H2 treated softwood (fibreglass batts or roll)
- External garage wall: AAC veneer; frame: timber - H2 treated softwood (no added insulation)
- Internal wall: plasterboard; frame: timber - H2 treated softwood (no added insulation)
- Internal wall: plasterboard; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Ceiling and roof: flat ceiling / pitched roof, framed - metal roof, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
Certificate 1822782S_04, issued 29 May 2026, from the council's DA documents.
NatHERS certificate
- Star rating
- 7 stars
- Rated with
- BERS Pro v5.2.6 (3.23)
- Rated on
- 29 May 2026
- Wall insulation
- R2.7
- Ceiling insulation
- R4, R7, R3
- Floor insulation
- R2.7, R4
- Living room glazing by direction
- NE 11.8 m², SE 5.8 m², NW 9.1 m²
- All glazing by direction
- NE 18.3 m², SE 12.6 m², SW 9.5 m², NW 13.6 m²
Roof
- Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour
Window types
- TIM-001-01 W Timber A SG Clear: U-value 5.4, SHGC 0.56
- TND-002-021 Aluminium Awning Window DG LB ClrSI 6.38/8/4: U-value 3.4, SHGC 0.42
- TND-001-021 Aluminium Sliding Window DG LB Clr 4/10/4: U-value 3.2, SHGC 0.46
- TND-002-002 Aluminium Awning Window SG 4Clr: U-value 6.5, SHGC 0.65
- TND-017-015 Aluminium Sliding Door DG LB ClrSI 6.38/8/4: U-value 3, SHGC 0.45
Window schedule
- ENTRY, window TND-002-021: 2,058 × 970 mm facing SE
- ENTRY, window TND-002-021: 2,058 × 970 mm facing SE
- STUDY, window TND-001-021: 1,540 × 1,810 mm facing NE
- LDRY, window TIM-001-01 W: 1,170 × 820 mm facing NE
- BATH GF, window TND-002-002: 944 × 610 mm facing NE
- MEDIA, window TND-002-021: 2,058 × 1,570 mm facing SW
- B'LRS, window TND-002-021: 600 × 2,650 mm facing SW
- Kitchen/Living, window TND-002-021: 2,058 × 970 mm facing NW
- Kitchen/Living, window TND-002-021: 2,058 × 970 mm facing NW
- Kitchen/Living, window TND-017-015: 2,100 × 3,224 mm facing NE
- Kitchen/Living, window TND-017-015: 2,100 × 2,410 mm facing NW
- Kitchen/Living, window TND-017-015: 2,100 × 2,410 mm facing NE
- UPPER LOUNGE, window TND-017-015: 2,400 × 2,410 mm facing SE
- BED 4, window TND-002-021: 1,540 × 1,810 mm facing SE
- BED 2, window TND-002-021: 1,200 × 1,810 mm facing SW
- BED 3, window TND-002-021: 1,200 × 1,810 mm facing NE
- BATH 1F, window TND-002-002: 1,370 × 970 mm facing SW
- ENS, window TND-002-002: 944 × 1,210 mm facing SW
- WIR, window TND-002-002: 1,200 × 970 mm facing NW
- MASTER BED, window TND-002-021: 1,200 × 970 mm facing NW
- MASTER BED, window TND-002-021: 1,200 × 1,810 mm facing NW
Certificate 0012378022-02, issued 29 May 2026, from the council's DA documents. Verify this certificate
Other certificates for this address
BASIX certificate, certificate 1822782S_03, issued 5 December 2025
BASIX certificate
- Energy score
- 70 (target 70)
- Water score
- 44 (target 40)
- Thermal performance
- Pass
- Materials score
- -49
- Heating load
- 41 MJ/m² a year
- Cooling load
- 18 MJ/m² a year
- Bedrooms
- 4
- Conditioned floor area
- 233.3 m²
- Unconditioned floor area
- 20 m²
- Site area
- 366 m²
- Roof area
- 222 m²
- Garden area
- 92 m²
- Climate zone
- NatHERS climate zone 28
- Hot water
- Gas instantaneous with a performance of 7 stars
- 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 52.9 m², timber frames 1 m², single glazing 5.2 m², double glazing 48.7 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, waffle pod slab (not specified)
- Floor: suspended floor above open subfloor, particle board; frame: timber - H2 treated softwood (not specified)
- Floor: above habitable rooms or mezzanine, particle board; frame: timber - H2 treated softwood (not specified)
- Floor: suspended floor above garage, particle board; frame: timber - H2 treated softwood (not specified)
- Garage floor: concrete slab on ground, waffle pod slab (not specified)
- External wall: brick veneer; frame: timber - H2 treated softwood (fibreglass batts or roll)
- External wall: framed (fibre cement sheet or boards); frame: timber - H2 treated softwood (fibreglass batts or roll)
- External garage wall: brick veneer; frame: timber - H2 treated softwood (not specified)
- Internal wall: plasterboard; frame: timber - H2 treated softwood (no added insulation)
- Internal wall: plasterboard; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Ceiling and roof: flat ceiling / pitched roof, framed - metal roof, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
Certificate 1822782S_03, issued 5 December 2025, from the council's DA documents.
NatHERS certificate, certificate 0012378022-01, issued 5 December 2025
NatHERS certificate
- Star rating
- 7 stars
- Rated with
- BERS Pro v5.2.6 (3.23)
- Rated on
- 05 Dec 2025
- Wall insulation
- R2.7
- Ceiling insulation
- R4, R7, R3
- Floor insulation
- R2.7, R4
- Living room glazing by direction
- NE 11.8 m², SE 5.8 m², NW 9.1 m²
- All glazing by direction
- NE 18.3 m², SE 12.6 m², SW 9.5 m², NW 13.6 m²
Roof
- Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour
Window types
- TIM-001-01 W Timber A SG Clear: U-value 5.4, SHGC 0.56
- TND-002-021 Aluminium Awning Window DG LB ClrSI 6.38/8/4: U-value 3.4, SHGC 0.42
- TND-001-021 Aluminium Sliding Window DG LB Clr 4/10/4: U-value 3.2, SHGC 0.46
- TND-002-002 Aluminium Awning Window SG 4Clr: U-value 6.5, SHGC 0.65
- TND-017-015 Aluminium Sliding Door DG LB ClrSI 6.38/8/4: U-value 3, SHGC 0.45
Window schedule
- ENTRY, window TND-002-021: 2,058 × 970 mm facing SE
- ENTRY, window TND-002-021: 2,058 × 970 mm facing SE
- STUDY, window TND-001-021: 1,540 × 1,810 mm facing NE
- LDRY, window TIM-001-01 W: 1,170 × 820 mm facing NE
- BATH GF, window TND-002-002: 944 × 610 mm facing NE
- MEDIA, window TND-002-021: 2,058 × 1,570 mm facing SW
- B'LRS, window TND-002-021: 600 × 2,650 mm facing SW
- Kitchen/Living, window TND-002-021: 2,058 × 970 mm facing NW
- Kitchen/Living, window TND-002-021: 2,058 × 970 mm facing NW
- Kitchen/Living, window TND-017-015: 2,100 × 3,224 mm facing NE
- Kitchen/Living, window TND-017-015: 2,100 × 2,410 mm facing NW
- Kitchen/Living, window TND-017-015: 2,100 × 2,410 mm facing NE
- UPPER LOUNGE, window TND-017-015: 2,400 × 2,410 mm facing SE
- BED 4, window TND-002-021: 1,540 × 1,810 mm facing SE
- BED 2, window TND-002-021: 1,200 × 1,810 mm facing SW
- BED 3, window TND-002-021: 1,200 × 1,810 mm facing NE
- BATH 1F, window TND-002-002: 1,370 × 970 mm facing SW
- ENS, window TND-002-002: 944 × 1,210 mm facing SW
- WIR, window TND-002-002: 1,200 × 970 mm facing NW
- MASTER BED, window TND-002-021: 1,200 × 970 mm facing NW
- MASTER BED, window TND-002-021: 1,200 × 1,810 mm facing NW
Certificate 0012378022-01, issued 5 December 2025, from the council's DA documents. Verify this certificate
BASIX certificate, certificate 1283952S_03, issued 2 May 2022
BASIX certificate
- Energy score
- 50 (target 50)
- Water score
- 42 (target 40)
- Thermal performance
- Pass
- Heating load
- 52 MJ/m² a year
- Cooling load
- 48 MJ/m² a year
- Bedrooms
- 4
- Conditioned floor area
- 203.5 m²
- Unconditioned floor area
- 15 m²
- Site area
- 366 m²
- Roof area
- 197 m²
- Garden area
- 171 m²
- Climate zone
- NatHERS climate zone 28
- Hot water
- Gas instantaneous with a performance of 6 stars
- Rainwater tank
- 3,000 litres
- Fixtures
- Showerheads 4 star, toilets 4 star, kitchen taps 4 star, basin taps 6 star
- LED lighting
- Yes
- Cooktop
- Gas
- Clothes line
- Yes
Heating
- Living area: 1-phase airconditioning; Energy rating: EER 2.5 - 3.0
- Bedroom: 1-phase airconditioning; Energy rating: EER 2.5 - 3.0
Cooling
- Living area: 1-phase airconditioning; Energy rating: EER 2.5 - 3.0
- Bedroom: 1-phase airconditioning; Energy rating: EER 2.5 - 3.0
Certificate 1283952S_03, issued 2 May 2022, from the council's DA documents.
BASIX certificate, certificate 1283952S, issued 28 February 2022
BASIX certificate
- Energy score
- 50 (target 50)
- Water score
- 40 (target 40)
- Thermal performance
- Pass
- Heating load
- 52 MJ/m² a year
- Cooling load
- 48 MJ/m² a year
- Bedrooms
- 4
- Conditioned floor area
- 203.5 m²
- Unconditioned floor area
- 15 m²
- Site area
- 366 m²
- Roof area
- 197 m²
- Garden area
- 171 m²
- Climate zone
- NatHERS climate zone 28
- Hot water
- Gas instantaneous with a performance of 6 stars
- Rainwater tank
- 2,000 litres
- Fixtures
- Showerheads 4 star, toilets 4 star, kitchen taps 4 star, basin taps 6 star
- LED lighting
- Yes
- Cooktop
- Gas
- Clothes line
- Yes
Heating
- Living area: 1-phase airconditioning; Energy rating: EER 3.0 - 3.5
- Bedroom: 1-phase airconditioning; Energy rating: EER 3.0 - 3.5
Cooling
- Living area: 1-phase airconditioning; Energy rating: EER 3.0 - 3.5
- Bedroom: 1-phase airconditioning; Energy rating: EER 3.0 - 3.5
Certificate 1283952S, issued 28 February 2022, from the council's DA documents.
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