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648 Joadja Road Joadja NSW 2575

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BASIX certificate and NatHERS rating

This home's BASIX certificate commits it to 6 kW of solar panels and a 50,000 litre rainwater tank. It beat its BASIX energy and water targets, scoring 67 against 63 for energy and 80 against 40 for water.

Key features

Windows
Up to aluminium frames 171.7 m², single glazing 9.2 m², double glazing 162.5 m²
Wall insulation
Fibreglass batts or roll; Foil-foam composite board
Roof and ceiling insulation
Ceiling: foil-foam composite board; roof: foil backed blanket; Ceiling: foil-foam composite board; roof: foil/sarking
Hot water
Electric boosted solar with a performance of 21 to 25 STCs or better
Air conditioning and heating
Airconditioning ducting only (living area and bedroom)

BASIX certificate

Energy score
67 (target 63)
Water score
80 (target 40)
Thermal performance
Pass
Materials score
-100
Heating load
84 MJ/m² a year
Cooling load
29 MJ/m² a year
Bedrooms
6
Conditioned floor area
720.2 m²
Unconditioned floor area
23.7 m²
Site area
121,676 m²
Roof area
629 m²
Garden area
480 m²
Climate zone
NatHERS climate zone 24
Hot water
Electric boosted solar with a performance of 21 to 25 STCs or better
Solar panels
6 kW
Rainwater tank
50,000 litres
Fixtures
Showerheads 4 star, toilets 4 star, kitchen taps 4 star, basin taps 4 star
LED lighting
Yes
Cooktop
Induction
Maximum glazing
aluminium frames 171.7 m², single glazing 9.2 m², double glazing 162.5 m²

Heating

  • Living area: airconditioning ducting only; Energy rating: n/a
  • Bedroom: airconditioning ducting only; Energy rating: n/a

Cooling

  • Living area: airconditioning ducting only; Energy rating: n/a
  • Bedroom: airconditioning ducting only; Energy rating: n/a

Construction and insulation

  • Floor: concrete slab on ground, conventional slab (polyester)
  • Floor: suspended floor above open subfloor, hard wood; frame: light steel frame (fibreglass batts or roll)
  • Floor: above habitable rooms or mezzanine, hard wood; frame: light steel frame (no added insulation)
  • Floor: suspended floor above garage, hard wood; frame: light steel frame (fibreglass batts or roll)
  • Garage floor: concrete slab on ground (no added insulation)
  • External wall: external insulated façade system (EIFS); frame: light steel frame (fibreglass batts or roll)
  • External wall: concrete block/plasterboard; frame: light steel frame (foil-foam composite board)
  • External garage wall: external insulated façade system (EIFS); frame: light steel frame (no added insulation)
  • Internal wall: plasterboard; frame: light steel frame (fibreglass batts or roll)
  • Internal wall: plasterboard; frame: light steel frame (no added insulation)
  • Ceiling and roof: raked ceiling / pitched or skillion roof, framed - concrete tiles , light steel frame (ceiling: foil-foam composite board; roof: foil backed blanket.)
  • Ceiling and roof: flat ceiling / flat roof, framed - metal roof, light steel frame (ceiling: foil-foam composite board; roof: foil/sarking.)

Certificate 1812041S, issued 8 September 2025, from the council's DA documents.

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