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97 Wairakei Road Wamberal NSW 2260

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BASIX certificate and NatHERS rating

This home's BASIX certificate commits it to 2.5 kW of solar panels and a 2,500 litre rainwater tank. It beat its BASIX energy and water targets, scoring 77 against 70 for energy and 41 against 40 for water.

Key features

Windows
Up to aluminium frames 103.7 m², double glazing 103.7 m²
Wall insulation
Fibreglass batts or roll
Roof and ceiling insulation
Ceiling: fibreglass batts or roll; roof: foil backed blanket
Hot water
Electric heat pump
Air conditioning and heating
1-phase airconditioning, ducted (living area and bedroom)

Built by Clark Andrews Building.

BASIX certificate

Energy score
77 (target 70)
Water score
41 (target 40)
Thermal performance
Pass
Materials score
-52
Heating load
23 MJ/m² a year
Cooling load
28 MJ/m² a year
Bedrooms
5
Conditioned floor area
291.1 m²
Unconditioned floor area
14.8 m²
Site area
835 m²
Roof area
348 m²
Garden area
315 m²
Climate zone
NatHERS climate zone 15
Hot water
Electric heat pump
Solar panels
2.5 kW
Rainwater tank
2,500 litres
Fixtures
Showerheads 3 star, toilets 4 star, kitchen taps 5 star, basin taps 5 star
LED lighting
Yes
Cooktop
Induction
Clothes line
Yes
Maximum glazing
aluminium frames 103.7 m², double glazing 103.7 m²

Heating

  • Living area: 1-phase airconditioning - ducted; Energy rating: EER 3.5 - 4.0
  • Bedroom: 1-phase airconditioning - ducted; Energy rating: EER 3.5 - 4.0

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 enclosed subfloor, treated softwood; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • Floor: above habitable rooms or mezzanine, treated softwood; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • Floor: suspended floor above garage, treated softwood; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • Garage floor: concrete slab on ground (no added insulation)
  • External wall: concrete block/plasterboard; frame: no frame (fibreglass batts or roll)
  • External wall: framed (fibre cement sheet or boards); frame: timber - H2 treated softwood (fibreglass batts or roll)
  • External wall: framed (solid or reconstituted timber weatherboard); frame: timber - H2 treated softwood (fibreglass batts or roll)
  • External garage wall: concrete block/plasterboard; frame: no frame (no added insulation)
  • Internal wall shared with garage: single skin masonry; frame: no frame (fibreglass batts or roll)
  • Internal wall: plasterboard; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • Internal wall: single skin masonry; frame: no frame (fibreglass batts or roll)
  • Ceiling and roof: flat ceiling / pitched roof, framed - metal roof, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)

Certificate 1813369S, issued 17 September 2025, from the council's DA documents.

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