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Home report
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3 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 target, scoring 73 against 70.
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
- 40 (target 40)
- Materials score
- -29
- Heating load
- 41 MJ/m² a year
- Cooling load
- 9 MJ/m² a year
- Bedrooms
- 4
- Conditioned floor area
- 111.6 m²
- Unconditioned floor area
- 2.5 m²
- Site area
- 315 m²
- Roof area
- 187 m²
- Garden area
- 120 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 25.3 m², double glazing 25.3 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: none; roof: foil/sarking.)
Certificate 1863680S, issued 2 September 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 2.2 m², E 3.8 m², W 3.8 m²
- All glazing by direction
- N 4.1 m², E 10.5 m², S 1.9 m², W 3.8 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 4, window SSW-020-02 A: 1,055 × 1,800 mm facing N
- 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
- FAMILY/DINING/K-ITCHEN, window SSW-009-10 A: 1,058 × 2,100 mm facing N
- FAMILY/DINING/K-ITCHEN, window SSW-020-02 A: 1,056 × 1,800 mm facing W
- FAMILY/DINING/K-ITCHEN, window SSW-020-02 A: 1,057 × 1,800 mm facing W
- FAMILY/DINING/K-ITCHEN, window SSW-020-02 A: 1,059 × 1,800 mm facing E
- FAMILY/DINING/K-ITCHEN, window SSW-020-02 A: 1,060 × 1,800 mm facing E
Certificate OBOS193ZJX, issued 27 August 2026, from the council's DA documents. Verify this certificate
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