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1 Pursell Avenue 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 10 kW of solar panels and an 18,000 litre rainwater tank. It beat its BASIX energy target, scoring 84 against 72.

Key features

Windows
28 windows and glazed doors
Wall insulation
All external walls fibreglass batts or roll+ foil/sarking
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
84 (target 72)
Water score
40 (target 40)
Thermal performance
Pass
Materials score
-100
Heating load
12 MJ/m² a year
Cooling load
16 MJ/m² a year
Bedrooms
5
Conditioned floor area
356 m²
Unconditioned floor area
25 m²
Site area
792 m²
Roof area
279 m²
Garden area
299 m²
Climate zone
NatHERS climate zone 56
Hot water
Electric heat pump with a performance of 31 to 35 STCs or better
Solar panels
10 kW
Rainwater tank
18,000 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 171 m², double glazing 171 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)
  • Floor: suspended floor above garage, concrete - suspended; frame: no frame (not specified)
  • Garage floor: concrete slab on ground (not specified)
  • External wall: brick veneer; frame: timber - H2 treated softwood. all external walls fibreglass batts or roll+ foil/sarking
  • External garage wall: brick veneer; frame: timber - H2 treated softwood (fibreglass batts or roll+ foil/sarking)
  • Internal wall: single skin masonry; frame: no frame (no added insulation)
  • Ceiling and roof: flat ceiling / flat roof, concrete - plasterboard internal, no frame (ceiling: not specified; roof: not specified.)

Certificate 1831969S, issued 6 February 2026, from the council's DA documents.

NatHERS certificate

Star rating
7.3 stars
Rated with
Hero 4.1
Rated on
06 Feb 2026
Living room glazing by direction
NNE 41.7 m², ESE 2.1 m², SSW 11.5 m²
All glazing by direction
NNE 114.4 m², ESE 6.7 m², SSW 40.8 m², WNW 5.6 m²

Roof

  • Added insulation absorptance Roof Colour SLAB-200-CEIL-01: Concrete Slab (200mm) with Suspended PB Ceiling 0.00, medium colour

Window schedule

  • BATH HAFWD-025-045 W25: 1,400 × 890 mm facing WNW
  • BATH HADWD-035-045 W26: 1,400 × 910 mm facing WNW
  • BED 2 HASWD-030-045 W07: 2,600 × 2,980 mm facing NNE
  • BED 3 HASWD-030-045 W08: 2,600 × 2,980 mm facing NNE
  • BED 4 HACWD-035-045 W20: 2,400 × 2,980 mm facing NNE
  • BED 5 HACWD-035-045 W20-a: 2,400 × 2,980 mm facing NNE
  • CELLAR HADWD-035-045 W28: 2,400 × 6,000 mm facing SSW
  • Day Time 1 HASWD-030-045 W15: 1,780 × 3,516 mm facing SSW
  • Day Time 11 HAFWD-025-045 W04: 2,400 × 1,000 mm facing NNE
  • ENS 1 HASWD-030-045 W02: 2,600 × 1,972 mm facing NNE
  • ENS 2 HAAWD-030-050 W09: 500 × 1,420 mm facing ESE
  • ENS 5 HACWD-035-045 W21: 500 × 1,420 mm facing ESE
  • ENTRY HALL HAFWD-025-045 W14: 2,700 × 755 mm facing SSW
  • GYM HASWD-030-045 W24: 2,600 × 3,812 mm facing NNE
  • LDRY HACWD-035-045 W11: 2,627 × 1,479 mm facing SSW
  • LIVING HADWD-035-045 W16: 2,800 × 1,060 mm facing NNE
  • LIVING HASWD-030-045 W17: 2,800 × 9,160 mm facing NNE
  • LIVING HAFWD-025-045 W12: 2,800 × 4,095 mm facing SSW
  • PWD HAFWD-025-045 W05: 1,800 × 1,000 mm facing WNW
  • PWD HASWD-030-045 W01: 2,600 × 5,500 mm facing NNE
  • PWD 2 HADWD-035-045 W27: 1,400 × 910 mm facing WNW
  • RUMPUS HASWD-030-045 W23: 2,600 × 5,047 mm facing NNE
  • RUMPUS HAFWD-025-045 W22: 2,260 × 910 mm facing ESE
  • STAIR 1 HAFWD-025-045 W19: 2,800 × 1,970 mm facing NNE
  • STAIR 1 HAFWD-025-045 W18: 2,800 × 1,995 mm facing NNE
  • STAIR 1 HAFWD-025-045 W10: 2,400 × 1,100 mm facing ESE
  • STAIR 1 HAFWD-025-045 W13: 2,800 × 978 mm facing SSW
  • Unconditioned 1 HALWS-050-050 W03: 500 × 1,100 mm facing ESE

Certificate HR-23MH0C-01, issued 6 February 2026, from the council's DA documents. Verify this certificate

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