12 Raleigh Street Coogee NSW 2034

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BASIX certificate and NatHERS rating

This home's BASIX certificate commits it to a 1,500 litre rainwater tank. It beat its BASIX water target, scoring 41 against 40.

Windows: Up to aluminium frames 37 m², single glazing 26 m², double glazing 11 m²
Wall insulation: Fibreglass batts or roll
Roof and ceiling insulation: Ceiling: fibreglass batts or roll; roof: foil backed blanket
Hot water: Gas instantaneous with a performance of 6 stars
Air conditioning and heating: 1-phase airconditioning, ducted (living area and bedroom)

Built by Dardas Construction.

Energy score: 72 (target 72)
Water score: 41 (target 40)
Thermal performance: Pass
Materials score: -6
Heating load: 21 MJ/m² a year
Cooling load: 8 MJ/m² a year
Bedrooms: 4
Conditioned floor area: 145 m²
Unconditioned floor area: 16 m²
Site area: 234 m²
Roof area: 120 m²
Garden area: 67 m²
Climate zone: NatHERS climate zone 56
Hot water: Gas instantaneous with a performance of 6 stars
Rainwater tank: 1,500 litres
Fixtures: Showerheads 4 star, toilets 4 star, kitchen taps 4 star, basin taps 4 star
LED lighting: Yes
Cooktop: Induction
Clothes line: Yes
Maximum glazing: aluminium frames 37 m², single glazing 26 m², double glazing 11 m²

Heating

Living area: 1-phase airconditioning - ducted; Energy rating: 2.5 Star (old label)
Bedroom: 1-phase airconditioning - ducted; Energy rating: 2.5 Star (old label)

Cooling

Living area: 1-phase airconditioning - ducted; Energy rating: 2.5 Star (old label)
Bedroom: 1-phase airconditioning - ducted; Energy rating: 2.5 Star (old label)

Construction and insulation

Floor: concrete slab on ground, conventional slab (no added insulation)
Floor: suspended floor above open subfloor, hard wood; frame: timber - untreated softwood (fibreglass batts or roll)
Floor: above habitable rooms or mezzanine, hard wood; frame: timber - untreated softwood (no added insulation)
External wall: AAC veneer; frame: timber - untreated softwood (fibreglass batts or roll)
External wall: framed (fibre cement sheet or boards); frame: timber - untreated softwood (fibreglass batts or roll)
Internal wall: plasterboard; frame: timber - untreated softwood (no added insulation)
Internal wall: single skin masonry; frame: no frame (no added insulation)
Ceiling and roof: flat ceiling / pitched roof, framed - terracotta tiles , timber - untreated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
Ceiling and roof: flat ceiling / flat roof, framed - metal roof, timber - untreated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)

Certificate 1833259S, issued 16 February 2026, from the council's DA documents.

BASIX certificate (alterations and additions), certificate A1775549, issued 2 December 2024

This BASIX certificate is for alterations and additions, such as an extension or a pool, rather than a whole new house.

Construction and insulation

Concrete slab on ground floor (no added insulation)
Floor above existing dwelling or building (no added insulation)
External wall: cavity brick (no added insulation)
External wall: framed (weatherboard, fibro, metal clad) R1.30 (or R1.70 including construction)
External wall: concrete panel/ plasterboard (concrete: 50 mm) R1.46 (or R1.70 including construction)
Flat ceiling, pitched roof ceiling: R0.20 (up), roof: foil backed blanket (75 mm) light (solar absorptance < 0.475)
Raked ceiling, pitched/skillion roof: framed ceiling: R0.50 (up), roof: foil backed blanket (75 mm) light (solar absorptance < 0.475)

Certificate A1775549, issued 2 December 2024, from the council's DA documents.

What else should you know about this block?