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Home report
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18 Inkerman Street Mosman NSW 2088
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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 3 kW of solar panels and a 2,500 litre rainwater tank. It beat its BASIX energy and water targets, scoring 81 against 72 for energy and 41 against 40 for water.
Key features
- Windows
- 28 windows and glazed doors
- Wall insulation
- All external walls polystyrene+ foil/sarking
- Roof and ceiling insulation
- Roof Added insulation absorptance Roof Colour SLAB-250-CEIL-01: Concrete Slab (250mm) with Suspended PB Ceiling 0.00, light colour
- Hot water
- Gas instantaneous with a performance of 4 stars
- Air conditioning and heating
- 3-phase airconditioning (living area and bedroom)
Built by Maston Builders Group.
BASIX certificate
- Energy score
- 81 (target 72)
- Water score
- 41 (target 40)
- Thermal performance
- Pass
- Materials score
- -94
- Heating load
- 12 MJ/m² a year
- Cooling load
- 17 MJ/m² a year
- Bedrooms
- 5
- Conditioned floor area
- 230.9 m²
- Unconditioned floor area
- 30.5 m²
- Site area
- 531 m²
- Roof area
- 200 m²
- Garden area
- 200 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Gas instantaneous with a performance of 4 stars
- Solar panels
- 3 kW
- Rainwater tank
- 2,500 litres
- Fixtures
- Showerheads 4 star, toilets 3 star, kitchen taps 3 star, basin taps 3 star
- LED lighting
- Yes
- Cooktop
- Gas
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 159.3 m², double glazing 159.3 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 (polystyrene)
- Floor: suspended floor above open subfloor, concrete - suspended; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Floor: above habitable rooms or mezzanine, concrete - suspended; frame: timber - H2 treated softwood (no added insulation)
- External wall: cavity brick; frame: no frame. all external walls polystyrene+ foil/sarking
- 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 / flat roof, concrete - plasterboard internal, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil/sarking.)
Certificate 1784897S_02, issued 2 December 2025, from the council's DA documents.
NatHERS certificate
- Star rating
- 7.1 stars
- Rated with
- Hero 4.1
- Rated on
- 02 Dec 2025
- Living room glazing by direction
- N 1.8 m², E 15.7 m², S 10.5 m², W 31.7 m²
- All glazing by direction
- N 34.9 m², E 33.9 m², S 17.9 m², W 72.7 m²
Roof
- Added insulation absorptance Roof Colour SLAB-250-CEIL-01: Concrete Slab (250mm) with Suspended PB Ceiling 0.00, light colour
- Roof type Added insulation absorptance Roof Colour SLAB-300-CEIL-01: Concrete Slab (300mm) with Suspended PB Ceiling 0.00, light colour
Window schedule
- BATH HADWD-035-045 W3.06: 2,700 × 900 mm facing E
- BED 1 HAFWD-025-037 W3.12: 2,700 × 2,840 mm facing N
- BED 1 HASDD-025-037 W3.11: 2,700 × 1,000 mm facing N
- BED 1 HASDD-025-037 W3.01: 2,700 × 4,550 mm facing W
- BED 2 HASDD-025-037 W3.05: 2,700 × 2,490 mm facing E
- BED 3 HADWD-035-045 W3.08: 2,700 × 1,100 mm facing N
- BED 3 HASDD-025-037 W3.07: 2,700 × 2,490 mm facing E
- BED 4 HAFWD-025-037 W2.09a: 2,700 × 2,000 mm facing N
- BED 4 HADWD-035-045 W2.09b: 2,700 × 1,000 mm facing N
- BED 5 HASDD-025-037 W1.01: 2,400 × 3,510 mm facing W
- ENS 1 HASDD-025-037 W3.02: 2,700 × 3,970 mm facing W
- ENS 4 HAFWD-025-037 W2.10: 2,700 × 1,000 mm facing N
- FAMILY/MEDIA HADWD-035-045 W2.08: 2,700 × 870 mm facing E
- FAMILY/MEDIA HASDD-025-037 W2.07: 2,700 × 2,750 mm facing E
- FAMILY/MEDIA HADWD-035-045 W2.06: 2,700 × 1,200 mm facing W
- KITCHEN/LIVING HAFWD-025-037 Sidelight: 2,700 × 350 mm facing E
- KITCHEN/LIVING HAFWD-025-037 W2.05: 2,700 × 2,760 mm facing S
- KITCHEN/LIVING HASDD-025-037 W2.02: 2,700 × 5,090 mm facing W
- KITCHEN/LIVING HASDD-025-037 W2.01: 2,700 × 5,450 mm facing W
- KITCHEN/LIVING HAFWD-025-037 W2.04: 2,700 × 1,850 mm facing E
- KITCHEN/LIVING HAFWD-025-037 W2.03: 500 × 6,000 mm facing S
- KITCHEN/LIVING HAFWD-025-037 W2.12: 300 × 6,090 mm facing N
- PANTRY HAFWD-025-037 W2.11: 300 × 1,580 mm facing N
- STAIRS_FF HAFWD-025-037 W3.04: 2,700 × 2,760 mm facing S
- STAIRS_LGF HASDD-025-037 W1.02: 2,400 × 3,980 mm facing W
- STUDY HADWD-035-045 W3.10: 2,700 × 1,000 mm facing N
- STUDY HAFWD-025-037 W3.09: 2,700 × 2,120 mm facing N
- WIR 1 HADWD-035-045 W3.03: 2,700 × 850 mm facing E
Certificate HR-1L1SJ8-02, issued 2 December 2025, from the council's DA documents. Verify this certificate
Other certificates for this address
NatHERS certificate, certificate HR-1L1SJ8-01, issued 25 February 2025
NatHERS certificate
- Star rating
- 7.1 stars
- Rated with
- Hero 4.1
- Rated on
- 25 Feb 2025
- Living room glazing by direction
- N 3.5 m², E 6.4 m², S 11.1 m², W 25.3 m²
- All glazing by direction
- N 24.3 m², E 37.5 m², S 18.5 m², W 68.2 m²
Roof
- Added insulation absorptance Roof Colour SLAB-250-CEIL-01: Concrete Slab (250mm) with Suspended PB Ceiling 0.00, light colour
- SLAB-300-CEIL-01: Concrete Slab (300mm) with Suspended PB Ceiling 0.00, light colour
Window schedule
- BATH HADWS-045-041 W3.06: 2,700 × 900 mm facing E
- BED 1 HAFWD-035-037 W3.11: 2,700 × 1,400 mm facing N
- BED 1 HASDD-030-037 W3.01: 2,500 × 4,550 mm facing W
- BED 2 HASDD-030-037 W3.05: 2,700 × 2,490 mm facing E
- BED 3 HADWD-035-045 W3.08: 2,700 × 1,105 mm facing N
- BED 3 HASDD-030-037 W3.07: 2,700 × 2,490 mm facing E
- BED 4 HASDD-030-037 W2.07: 2,900 × 2,750 mm facing E
- BED 4 HAFWD-035-037 W2.06: 2,900 × 1,200 mm facing W
- BED 5 HASDD-035-056 W1.01: 2,400 × 4,110 mm facing W
- ENS 1 HADWS-045-041 W3.09: 2,700 × 2,890 mm facing N
- ENS 4 HADWS-045-041 W2.08: 2,700 × 870 mm facing E
- ENTRY_BASEMENT HASDD-025-056 W1.02: 2,400 × 3,980 mm facing W
- KIT/LIV/DIN HAFWD-025-037 W2.12: 500 × 6,090 mm facing N
- KIT/LIV/DIN HAFWD-025-037 W2.11b: 500 × 800 mm facing N
- KIT/LIV/DIN HAFWD-025-037 Sidelight: 2,900 × 350 mm facing E
- KIT/LIV/DIN HAFWD-025-037 W2.05: 2,900 × 2,760 mm facing S
- KIT/LIV/DIN HAFWD-025-037 W2.04: 2,900 × 1,850 mm facing E
- KIT/LIV/DIN HAFWD-025-037 W2.03: 500 × 6,090 mm facing S
- KIT/LIV/DIN HASDD-025-037 W2.02: 2,400 × 5,090 mm facing W
- KIT/LIV/DIN HASDD-025-037 W2.01: 2,400 × 5,450 mm facing W
- PANTRY HAFWD-025-037 W2.11a: 500 × 1,680 mm facing N
- POWDER HAFWS-040-045 W2.10: 2,900 × 1,000 mm facing N
- POWDER HAFWS-040-045 W2.09: 2,900 × 900 mm facing E
- SEAT/HALL HAFWD-025-045 W3.04: 2,700 × 2,760 mm facing S
- SEAT/HALL HAFWD-025-045 W3.03: 2,700 × 850 mm facing E
- SEAT/HALL HASDD-025-037 W3.02: 2,500 × 3,463 mm facing W
- WIR 1 HAFWD-035-037 W3.10: 2,700 × 950 mm facing N
Certificate HR-1L1SJ8-01, issued 25 February 2025, from the council's DA documents. Verify this certificate
BASIX certificate, certificate 1784897S, issued 25 February 2025
BASIX certificate
- Energy score
- 82 (target 72)
- Water score
- 41 (target 40)
- Thermal performance
- Pass
- Materials score
- -97
- Heating load
- 13 MJ/m² a year
- Cooling load
- 16 MJ/m² a year
- Bedrooms
- 5
- Conditioned floor area
- 245.7 m²
- Unconditioned floor area
- 62.6 m²
- Site area
- 531 m²
- Roof area
- 200 m²
- Garden area
- 200 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Gas instantaneous with a performance of 6 stars
- Solar panels
- 3 kW
- Rainwater tank
- 2,500 litres
- Fixtures
- Showerheads 4 star, toilets 3 star, kitchen taps 3 star, basin taps 3 star
- LED lighting
- Yes
- Cooktop
- Gas
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 155.8 m², single glazing 155.8 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, concrete - suspended; frame: timber - H2 treated softwood (rockwool batts, roll or pump-in)
- Floor: above habitable rooms or mezzanine, concrete - suspended; frame: timber - H2 treated softwood (no added insulation)
- External wall: cavity brick; frame: no frame. all external walls rockwool batts, roll or pump-in+ foil/sarking
- Internal wall: plasterboard; frame: timber - H2 treated softwood (no added insulation)
- Ceiling and roof: flat ceiling / flat roof, concrete - plasterboard internal, timber - H2 treated softwood (ceiling: rockwool batts, roll or pump-in; roof: foil/sarking.)
Certificate 1784897S, issued 25 February 2025, from the council's DA documents.
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