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Home report
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3A Barn Owl Avenue Wadalba NSW 2259
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BASIX certificate and NatHERS rating
This home has a NatHERS rating of 7.1 stars out of 10. Its BASIX certificate commits it to a 1,500 litre rainwater tank. Its NatHERS certificate lists insulation in the external walls, ceiling and floor. It beat its BASIX energy and water targets, scoring 73 against 70 for energy and 42 against 40 for water.
Key features
- Windows
- 11 windows and glazed doors: 200 SERIES - ALUMINIUM SLIDING WINDOW DG 4ET-10Ar-4; 200 SERIES - ALUMINIUM SLIDING DOOR DG 4ET-10Ar-4; 300 SERIES - ALUMINIUM AWNING WINDOW DG 4ET-16Ar-4
- Wall insulation
- R2.5
- Roof and ceiling insulation
- Ceiling R5.0, R3.0, roof Cont:Attic-Continuous 0.0, medium colour
- Hot water
- Electric heat pump with a performance of 31 to 35 STCs or better
- Air conditioning and heating
- 1-phase airconditioning, ducted (living area and bedroom)
BASIX certificate
- Energy score
- 73 (target 70)
- Water score
- 42 (target 40)
- Materials score
- -58
- Heating load
- 42 MJ/m² a year
- Cooling load
- 8 MJ/m² a year
- Bedrooms
- 4
- Conditioned floor area
- 107.8 m²
- Unconditioned floor area
- 3.5 m²
- Site area
- 315 m²
- Roof area
- 182 m²
- Garden area
- 110 m²
- Climate zone
- NatHERS climate zone 15
- Hot water
- Electric heat pump with a performance of 31 to 35 STCs or better
- Rainwater tank
- 1,500 litres
- Fixtures
- Showerheads 3 star, toilets 4 star, kitchen taps 4 star, basin taps 4 star
- LED lighting
- Yes
- Maximum glazing
- aluminium frames 23.6 m², double glazing 23.6 m²
Heating
- Living area: 1-phase airconditioning - ducted; Energy rating: 5.5 star (average zone)
- Bedroom: 1-phase airconditioning - ducted; Energy rating: 5.5 star (average zone)
Cooling
- Living area: 1-phase airconditioning - ducted; Energy rating: 5 star (average zone)
- Bedroom: 1-phase airconditioning - ducted; Energy rating: 5 star (average zone)
Construction and insulation
- Floor: concrete slab on ground, waffle pod slab (no added insulation)
- Garage floor: concrete slab on ground, waffle pod slab (no added insulation)
- External wall: brick veneer; frame: timber - H2 treated softwood. all external walls fibreglass batts or roll
- External garage wall: cavity brick; frame: no frame (no added insulation)
- Internal wall: plasterboard; frame: timber - H2 treated softwood (no added insulation)
- Ceiling and roof: flat ceiling / pitched roof, framed - concrete tiles , timber - H2 treated softwood (ceiling: not specified; roof: foil/sarking.)
Certificate 1863118S, issued 28 August 2026, from the council's DA documents.
NatHERS certificate
- Star rating
- 7.1 stars
- Rated with
- FirstRate5: 5.5.5a (3.22)
- Rated on
- 27 Aug 2026
- Wall insulation
- R2.5
- Ceiling insulation
- R5.0, R3.0
- Floor insulation
- R2.0, R2.5
- Living room glazing by direction
- N 2.3 m², E 5.8 m², W 1.9 m²
- All glazing by direction
- N 4.2 m², E 12.5 m², S 1.9 m², W 1.9 m²
Roof
- Cont:Attic-Continuous 0.0, medium colour
Window types
- SSW-020-02 A 200 SERIES - ALUMINIUM SLIDING WINDOW DG 4ET-10Ar-4: U-value 3.65, SHGC 0.5
- SSW-009-10 A 200 SERIES - ALUMINIUM SLIDING DOOR DG 4ET-10Ar-4: U-value 2.99, SHGC 0.55
- SSW-014-06 A 300 SERIES - ALUMINIUM AWNING WINDOW DG 4ET-16Ar-4: U-value 3.87, SHGC 0.46
Window schedule
- BED 2, window SSW-020-02 A: 1,062 × 1,200 mm facing E
- BED 3, window SSW-020-02 A: 1,061 × 1,200 mm facing E
- GARAGE, window SSW-009-10 A: 1,064 × 2,100 mm facing E
- STUDY/FOYER, window SSW-014-06 A: 1,065 × 1,800 mm facing S
- BED 1, window SSW-020-02 A: 1,063 × 1,800 mm facing E
- BED 4, window SSW-020-02 A: 1,075 × 1,800 mm facing N
- KITCHEN/FAMILY/-DINING, window SSW-020-02 A: 1,076 × 1,800 mm facing E
- KITCHEN/FAMILY/-DINING, window SSW-020-02 A: 1,077 × 1,800 mm facing E
- KITCHEN/FAMILY/-DINING, window SSW-020-02 A: 1,078 × 1,800 mm facing E
- KITCHEN/FAMILY/-DINING, window SSW-020-02 A: 1,074 × 1,800 mm facing W
- KITCHEN/FAMILY/-DINING, window SSW-009-10 A: 1,073 × 2,100 mm facing N
Certificate S8D4YVC6CZ, issued 27 August 2026, from the council's DA documents.
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