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22 Binda Crescent Little Bay NSW 2036

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BASIX certificate and NatHERS rating

This home has a NatHERS rating of 7.2 stars out of 10. Its BASIX certificate commits it to a 2,500 litre rainwater tank. Its NatHERS certificate lists insulation in the external walls, ceiling and floor. It beat its BASIX water target, scoring 41 against 40.

Key features

Windows
13 windows and glazed doors: Aluminium Awning Window SG 5Clr; Aluminium Awning Window DG LB Clr 5/10/5; Aluminium Sliding Door DG LB Clr 4/12/4
Wall insulation
R2.5, R0.1
Roof and ceiling insulation
Ceiling R5, R6, R3, roof Waterproofing Membrane No Added Insulation, No air Gap, medium colour
Hot water
Gas instantaneous with a performance of 6 stars
Air conditioning and heating
1-phase airconditioning, ducted (living area and bedroom)

BASIX certificate

Energy score
72 (target 72)
Water score
41 (target 40)
Thermal performance
Pass
Materials score
-8
Heating load
24 MJ/m² a year
Cooling load
4 MJ/m² a year
Bedrooms
3
Conditioned floor area
162.6 m²
Unconditioned floor area
65.9 m²
Site area
574 m²
Roof area
280 m²
Garden area
255 m²
Climate zone
NatHERS climate zone 56
Hot water
Gas instantaneous with a performance of 6 stars
Rainwater tank
2,500 litres
Fixtures
Showerheads 4 star, toilets 4 star, kitchen taps 4 star, basin taps 4 star
LED lighting
Yes
Cooktop
Gas
Clothes line
Yes
Maximum glazing
aluminium frames 32.9 m², single glazing 5.5 m², double glazing 27.4 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 (no added insulation)
  • Floor: suspended floor above enclosed subfloor, concrete - suspended; frame: no frame (polystyrene)
  • Garage floor: concrete slab on ground (no added insulation)
  • External wall: cavity brick; frame: no frame (foil/sarking)
  • External wall: concrete block/plasterboard; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • External garage wall: cavity brick; frame: no frame (no added insulation)
  • Internal wall: single skin masonry; frame: no frame (no added insulation)
  • Internal wall: single skin masonry; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • Ceiling and roof: flat ceiling / flat roof, framed - metal roof, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)

Certificate 1812174S_02, issued 11 December 2025, from the council's DA documents.

NatHERS certificate

Star rating
7.2 stars
Rated with
BERS Pro v5.2.6 (3.23)
Rated on
09 Sep 2025
Wall insulation
R2.5, R0.1
Ceiling insulation
R5, R6, R3
Floor insulation
R2.5, R0.1, R5
LED downlights
50
Living room glazing by direction
N 3.3 m², S 3 m², W 8.4 m², NW 4.4 m²
All glazing by direction
N 6.6 m², E 1.7 m², S 11.9 m², W 8.4 m², NW 4.4 m²

Roof

  • Waterproofing Membrane No Added Insulation, No air Gap, medium colour
  • Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour

Window types

  • AWS-007-002 Aluminium Awning Window SG 5Clr: U-value 6.4, SHGC 0.64
  • AWS-008-025 Aluminium Awning Window DG LB Clr 5/10/5: U-value 3.4, SHGC 0.43
  • AWS-013-013 Aluminium Sliding Door DG LB Clr 4/12/4: U-value 3, SHGC 0.49

Window schedule

  • Garage, window AWS-007-002: 1,100 × 1,500 mm facing S
  • Garage, window AWS-007-002: 1,100 × 1,500 mm facing S
  • Bedroom 1, window AWS-008-025: 1,100 × 1,500 mm facing E
  • Ensuite, window AWS-008-025: 1,100 × 1,200 mm facing N
  • Bedroom 2, window AWS-008-025: 1,100 × 1,800 mm facing N
  • Bedroom 3, window AWS-008-025: 1,100 × 1,800 mm facing S
  • Laundry, window AWS-007-002: 1,100 × 2,000 mm facing S
  • Butler, window AWS-008-025: 1,100 × 1,300 mm facing S
  • Kitchen/Living, window AWS-008-025: 1,100 × 2,000 mm facing S
  • Kitchen/Living, window AWS-013-013: 2,100 × 4,000 mm facing W
  • Kitchen/Living, window AWS-008-025: 1,100 × 700 mm facing S
  • Kitchen/Living, window AWS-008-025: 1,100 × 4,000 mm facing NW
  • Kitchen/Living, window AWS-008-025: 1,100 × 3,000 mm facing N

Certificate 0012181046, issued 9 September 2025, from the council's DA documents.

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