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58 Oliver Street Freshwater NSW 2096

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BASIX certificate and NatHERS rating

This home's BASIX certificate commits it to 2 kW of solar panels and a 1,000 litre rainwater tank. It beat its BASIX energy target, scoring 88 against 72.

Key features

Windows
Up to timber frames 58 m², single glazing 25 m², double glazing 33 m²
Wall insulation
All external walls rockwool batts, roll or pump-in
Roof and ceiling insulation
Ceiling: rockwool batts, roll or pump-in; roof: foil/sarking
Hot water
Electric heat pump with a performance of 21 to 25 STCs or better
Air conditioning and heating
1-phase airconditioning, ducted (living area and bedroom)

Built by Allcastle Homes.

BASIX certificate

Energy score
88 (target 72)
Water score
40 (target 40)
Thermal performance
Pass
Materials score
-21
Heating load
16 MJ/m² a year
Cooling load
13 MJ/m² a year
Bedrooms
4
Conditioned floor area
185 m²
Unconditioned floor area
17 m²
Site area
399 m²
Roof area
165 m²
Garden area
158 m²
Climate zone
NatHERS climate zone 1
Hot water
Electric heat pump with a performance of 21 to 25 STCs or better
Solar panels
2 kW
Rainwater tank
1,000 litres
Fixtures
Showerheads 4 star, toilets 4 star, kitchen taps 4 star, basin taps 6 star
LED lighting
Yes
Clothes line
Yes
Maximum glazing
timber frames 58 m², single glazing 25 m², double glazing 33 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, waffle pod slab (no added insulation)
  • Floor: above habitable rooms or mezzanine, particle board; frame: timber - H2 treated softwood (rockwool batts, roll or pump-in)
  • External wall: brick veneer; frame: timber - H2 treated softwood. all external walls rockwool batts, roll or pump-in
  • Internal wall: plasterboard; frame: timber - H2 treated softwood (rockwool batts, roll or pump-in)
  • Internal wall: plasterboard; frame: timber - H2 treated softwood (no added insulation)
  • Ceiling and roof: flat ceiling / pitched roof, framed - concrete tiles , timber - H2 treated softwood (ceiling: rockwool batts, roll or pump-in; roof: foil/sarking.)

Certificate 1780331S, issued 20 January 2025, from the council's DA documents.

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