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42 Castle Circuit Seaforth NSW 2092

BASIX certificate and NatHERS rating

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This home's BASIX certificate commits it to 8 kW of solar panels and a 4,000 litre rainwater tank. It beat its BASIX energy and water targets, scoring 81 against 72 for energy and 45 against 40 for water.

Key features

Windows
Up to aluminium frames 198.9 m², double glazing 198.9 m²
Wall insulation
Fibreglass batts or roll; Foil-foam composite board+ foil/sarking
Roof and ceiling insulation
Ceiling: fibreglass batts or roll; roof: foil/sarking
Hot water
Gas instantaneous with a performance of 6 stars
Air conditioning and heating
3-phase airconditioning (living area and bedroom)

BASIX certificate

Energy score
81 (target 72)
Water score
45 (target 40)
Thermal performance
Pass
Materials score
-100
Heating load
15 MJ/m² a year
Cooling load
15 MJ/m² a year
Bedrooms
4
Conditioned floor area
321.8 m²
Unconditioned floor area
21.6 m²
Site area
720 m²
Roof area
198 m²
Garden area
217 m²
Climate zone
NatHERS climate zone 56
Hot water
Gas instantaneous with a performance of 6 stars
Solar panels
8 kW
Rainwater tank
4,000 litres
Fixtures
Showerheads 4 star, toilets 3 star, kitchen taps 3 star, basin taps 3 star
LED lighting
Yes
Cooktop
Gas
Clothes line
Yes
Maximum glazing
aluminium frames 198.9 m², double glazing 198.9 m²

Heating

  • Living area: 3-phase airconditioning; Energy rating: EER 3.0 - 3.5
  • Bedroom: 3-phase airconditioning; Energy rating: EER 3.0 - 3.5

Cooling

  • Living area: 3-phase airconditioning; Energy rating: EER 3.0 - 3.5
  • Bedroom: 3-phase airconditioning; Energy rating: EER 3.0 - 3.5

Construction and insulation

  • Floor: concrete slab on ground, conventional slab (polystyrene)
  • Floor: suspended floor above open subfloor, concrete - suspended; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • Floor: above habitable rooms or mezzanine, concrete - suspended; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • Floor: suspended floor above garage, concrete - suspended; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • Garage floor: concrete slab on ground (polystyrene)
  • External wall: concrete panel/plasterboard; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • External wall: cavity brick; frame: no frame (foil-foam composite board+ foil/sarking)
  • Internal wall: plasterboard; frame: timber - untreated softwood (no added insulation)
  • Ceiling and roof: flat ceiling / flat roof, concrete - bare internal, timber - untreated softwood (ceiling: fibreglass batts or roll; roof: foil/sarking.)

Certificate 1736044S_02, issued 13 December 2024, from the council's DA documents.

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