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Home report
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21 Park Street Collaroy NSW 2097
BASIX certificate and NatHERS rating
Finding the block on the map…
This home's BASIX certificate commits it to 1.4 kW of solar panels and a 3,500 litre rainwater tank. It beat its BASIX water target, scoring 41 against 40.
Key features
- Windows
- Up to aluminium frames 95 m², single glazing 5 m², double glazing 90 m²
- Wall insulation
- Polyurethane
- Roof and ceiling insulation
- Ceiling: polyurethane; roof: none
- Hot water
- Electric storage
- Air conditioning and heating
- 1-phase airconditioning, non ducted (living area and bedroom)
BASIX certificate
- Energy score
- 72 (target 72)
- Water score
- 41 (target 40)
- Thermal performance
- Pass
- Materials score
- -49
- Heating load
- 22 MJ/m² a year
- Cooling load
- 8 MJ/m² a year
- Bedrooms
- 3
- Conditioned floor area
- 300 m²
- Unconditioned floor area
- 18 m²
- Site area
- 607 m²
- Roof area
- 150 m²
- Garden area
- 265 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Electric storage
- Solar panels
- 1.4 kW
- Rainwater tank
- 3,500 litres
- Fixtures
- Showerheads 4 star, toilets 4 star, kitchen taps 4 star, basin taps 4 star
- LED lighting
- Yes
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 95 m², single glazing 5 m², double glazing 90 m²
Heating
- Living area: 1-phase airconditioning - non ducted; Energy rating: 2.5 Star (old label)
- Bedroom: 1-phase airconditioning - non ducted; Energy rating: 2.5 Star (old label)
Cooling
- Living area: 1-phase airconditioning - non ducted; Energy rating: 2.5 Star (old label)
- Bedroom: 1-phase airconditioning - non ducted; Energy rating: 2.5 Star (old label)
Construction and insulation
- Floor: concrete slab on ground, conventional slab (not specified)
- Floor: suspended floor above open subfloor, concrete - suspended; frame: no frame (no added insulation)
- Floor: above habitable rooms or mezzanine, concrete - suspended; frame: no frame (no added insulation)
- External wall: framed (fibre cement sheet or boards); frame: timber - untreated softwood (polyurethane)
- External wall: concrete panel/plasterboard; frame: no frame (polyurethane)
- Internal wall: plasterboard; frame: timber - untreated softwood (no added insulation)
- Ceiling and roof: flat ceiling / flat roof, concrete - plasterboard internal, no frame (ceiling: polyurethane; roof: none.)
Certificate 1797565S_02, issued 5 December 2025, from the council's DA documents.
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