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Home report
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46 Bay Street Mosman NSW 2088
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BASIX certificate and NatHERS rating
This home has a NatHERS rating of 7.3 stars out of 10. Its BASIX certificate commits it to 5 kW of solar panels and an 8,000 litre rainwater tank. It beat its BASIX energy target, scoring 94 against 72.
Key features
- Windows
- 40 windows and glazed doors
- Wall insulation
- All external walls polyurethane
- Roof and ceiling insulation
- Roof Added insulation absorptance Roof Colour SLAB-200-CEIL-01: Concrete Slab (200mm) with Suspended PB Ceiling 0.00, medium colour
- Hot water
- Electric heat pump with a performance of 31 to 35 STCs or better
- Air conditioning and heating
- 1-phase airconditioning, ducted (living area and bedroom)
BASIX certificate
- Energy score
- 94 (target 72)
- Water score
- 40 (target 40)
- Thermal performance
- Pass
- Materials score
- -100
- Heating load
- 10 MJ/m² a year
- Cooling load
- 17 MJ/m² a year
- Bedrooms
- 5
- Conditioned floor area
- 370 m²
- Unconditioned floor area
- 11 m²
- Site area
- 799 m²
- Roof area
- 316 m²
- Garden area
- 425 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Electric heat pump with a performance of 31 to 35 STCs or better
- Solar panels
- 5 kW
- Rainwater tank
- 8,000 litres
- Fixtures
- Showerheads 4 star, toilets 4 star, kitchen taps 5 star, basin taps 5 star
- LED lighting
- Yes
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 193 m², double glazing 193 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, conventional slab (not specified)
- Floor: suspended floor above open subfloor, concrete - suspended; frame: no frame (not specified)
- Floor: above habitable rooms or mezzanine, concrete - suspended; frame: no frame (not specified)
- Garage floor: concrete - suspended; frame: no frame (not specified)
- External wall: cavity brick; frame: no frame. all external walls polyurethane
- External garage wall: cavity brick; frame: no frame (not specified)
- Internal wall: single skin masonry; frame: no frame (not specified)
- Ceiling and roof: flat ceiling / flat roof, concrete - plasterboard internal, no frame (ceiling: not specified; roof: not specified.)
Certificate 1820979S, issued 10 November 2025, from the council's DA documents.
NatHERS certificate
- Star rating
- 7.3 stars
- Rated with
- Hero 4.1
- Rated on
- 10 Nov 2025
- Living room glazing by direction
- N 4.7 m², S 29.9 m², W 6.9 m²
- All glazing by direction
- N 41.6 m², E 11.9 m², S 48.4 m², SW 13.9 m², W 77.1 m²
Roof
- Added insulation absorptance Roof Colour SLAB-200-CEIL-01: Concrete Slab (200mm) with Suspended PB Ceiling 0.00, medium colour
Window schedule
- Bed 2 HBDWD-025-056 W21: 2,700 × 820 mm facing S
- Bed 2 HAFWD-025-045 W23: 2,700 × 345 mm facing S
- Bed 2 HAFWD-025-045 W22: 2,700 × 515 mm facing W
- Bed 2 HASDD-025-056 W24: 2,700 × 3,790 mm facing W
- Bed 4 HBDWD-025-056 W37: 2,400 × 2,000 mm facing SW
- Bed 5 HBDWD-025-056 W01: 2,700 × 1,200 mm facing S
- Bed 5 HASDD-025-056 W02: 2,700 × 4,500 mm facing W
- Bed4 10.05 HAFWD-025-045 W28: 2,700 × 550 mm facing W
- Bed4 10.05 HASDD-025-056 W30: 2,700 × 3,650 mm facing W
- Bed4 10.05 HBDWD-025-056 W31: 2,700 × 600 mm facing N
- Bed4 10.05 HBDWD-025-056 W26: 2,700 × 600 mm facing S
- Bed4 10.05 HBDWD-025-056 W27: 2,700 × 830 mm facing S
- Bed4 10.05 HAFWD-025-045 W29: 2,700 × 310 mm facing S
- Day Time 9 HAFWD-025-045 W25: 2,700 × 1,194 mm facing W
- Day Time 9 HBDWD-025-056 W34: 2,700 × 1,100 mm facing N
- Day Time 9 HBDWD-025-056 W34-a: 2,700 × 1,100 mm facing N
- Day Time 9 HAFWD-025-045 W39: 2,700 × 4,573 mm facing N
- Ensuite 1 HAFWD-025-045 W32: 2,700 × 2,210 mm facing N
- Entry HBCWD-030-045 W16: 1,200 × 1,194 mm facing E
- Entry HAFWD-025-045 W17: 3,000 × 1,405 mm facing E
- Entry HBCWD-030-045 W14: 3,000 × 1,000 mm facing N
- GARAGE HBDWD-025-056 W38: 2,400 × 2,000 mm facing SW
- Garage HBDWD-025-056 W35: 2,400 × 600 mm facing N
- Garage HBDWD-025-056 W36: 2,400 × 600 mm facing S
- Hall 1 HASDD-025-056 W03: 2,700 × 5,760 mm facing W
- Hall 1 HBDWD-025-056 W04: 2,700 × 1,200 mm facing N
- Kitchen HBDWD-025-056 W11: 3,000 × 760 mm facing N
- Kitchen HAFWD-025-045 W12: 740 × 3,300 mm facing N
- Kitchen HBDWD-025-056 W09: 3,000 × 1,250 mm facing W
- Kitchen HBDWD-025-056 W10: 3,000 × 1,035 mm facing W
- Kitchen HASDD-025-056 W07: 3,000 × 8,975 mm facing S
- Kitchen HAFWD-025-045 W08: 3,000 × 1,000 mm facing S
- Laundry HAAWD-030-050 W13: 740 × 2,182 mm facing N
- Powder HBDWD-025-056 W15: 3,000 × 990 mm facing E
- Sitting Roo HBDWD-025-056 W05: 3,000 × 1,325 mm facing S
- Sitting Roo HASDD-025-056 W06: 3,000 × 5,445 mm facing W
- Study HBDWD-025-056 W19: 2,200 × 900 mm facing S
- Study HBDWD-025-056 W20: 2,200 × 1,960 mm facing SW
- Study HBDWD-025-056 W18: 2,200 × 770 mm facing N
- Entry HAFWD-025-045 W33: 2,700 × 1,200 mm facing E
Certificate HR-NTUUNQ-01, issued 10 November 2025, from the council's DA documents. Verify this certificate
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