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Home report
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31 Oleander Avenue Baulkham Hills NSW 2153
BASIX certificate and NatHERS rating
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This home has a NatHERS rating of 7 stars out of 10. Its BASIX certificate commits it to 5.1 kW of solar panels and a 3,000 litre rainwater tank. Its NatHERS certificate lists insulation in the external walls, ceiling and floor. It beat its BASIX energy and water targets, scoring 98 against 72 for energy and 42 against 40 for water.
Key features
- Windows
- 23 windows and glazed doors
- Wall insulation
- R2.5
- Roof and ceiling insulation
- Ceiling R6, R3, roof Construction Insulation Reflective wrap* Waterproofing Membrane No Insulation, Only an Air Gap, medium colour
- Hot water
- Electric heat pump with a performance of 21 to 25 STCs or better
- Air conditioning and heating
- 1-phase airconditioning, ducted (living area and bedroom)
BASIX certificate
- Energy score
- 98 (target 72)
- Water score
- 42 (target 40)
- Materials score
- -79
- Heating load
- 14 MJ/m² a year
- Cooling load
- 16 MJ/m² a year
- Bedrooms
- 4
- Conditioned floor area
- 274.5 m²
- Unconditioned floor area
- 9.1 m²
- Site area
- 714 m²
- Roof area
- 248 m²
- Garden area
- 289 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Electric heat pump with a performance of 21 to 25 STCs or better
- Solar panels
- 5.1 kW
- Rainwater tank
- 3,000 litres
- Fixtures
- Showerheads 3 star, toilets 4 star, kitchen taps 3 star, basin taps 4 star
- LED lighting
- Yes
- Cooktop
- Gas
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 84.4 m², single glazing 8.4 m², double glazing 76 m²
Heating
- Living area: 1-phase airconditioning - ducted; Energy rating: EER 3.0 - 3.5
- Bedroom: 1-phase airconditioning - ducted; Energy rating: EER 3.0 - 3.5
Cooling
- Living area: 1-phase airconditioning - ducted; Energy rating: EER 3.0 - 3.5
- Bedroom: 1-phase airconditioning - ducted; Energy rating: EER 3.0 - 3.5
Construction and insulation
- Floor: concrete slab on ground, waffle pod slab (no added insulation)
- Floor: above habitable rooms or mezzanine, particle board; frame: timber - H2 treated softwood (no added insulation)
- Floor: suspended floor above garage, concrete - suspended; frame: timber - H2 treated softwood (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: concrete block/plasterboard; frame: no frame (no added insulation)
- Internal wall: plasterboard; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Ceiling and roof: flat ceiling / pitched roof, framed - metal roof, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
Certificate 1828876S_03, issued 5 June 2026, from the council's DA documents.
NatHERS certificate
- Star rating
- 7 stars
- Rated with
- BERS Pro v5.2.6 (3.23)
- Rated on
- 05 Jun 2026
- Wall insulation
- R2.5
- Ceiling insulation
- R6, R3
- Floor insulation
- R2.5
- Living room glazing by direction
- N 4.9 m², S 5.3 m², W 4.1 m²
- All glazing by direction
- N 29 m², E 17.3 m², S 24.5 m², W 13.7 m²
Roof
- Construction Insulation Reflective wrap* Waterproofing Membrane No Insulation, Only an Air Gap, medium colour
- Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour
Window schedule
- FAM DIN KIT LIV BRD-189-010-001 W08: 2,300 × 2,700 mm facing N
- FAM DIN KIT LIV BRD-189-010-001 W09: 2,300 × 2,700 mm facing N
- FAM DIN KIT LIV BRD-035-300-002 W07: 2,400 × 3,200 mm facing N
- FAM DIN KIT LIV BRD-035-300-002 W06: 2,400 × 3,200 mm facing E
- BUTLERS BRD-154-300-002 W10: 1,200 × 1,200 mm facing W
- LAUNDRY BRD-033-001-001 W11: 2,400 × 1,500 mm facing W
- MEDIA BRD-189-010-001 W05: 700 × 2,700 mm facing E
- GUEST BED BRD-189-010-001 W04: 1,800 × 1,800 mm facing E
- GUEST ENS BRD-112-001-001 W03: 1,800 × 600 mm facing E
- OFFICE BRD-189-010-001 W02: 2,300 × 1,810 mm facing S
- ENTRY FOYER BRD-125-300-002 W01: 1,900 × 1,200 mm facing S
- LOUNGE BRD-189-010-001 W13: 1,600 × 3,300 mm facing S
- LOUNGE BRD-189-010-001 W12: 1,500 × 2,700 mm facing W
- BED 2 BRD-189-010-001 W20: 1,500 × 2,700 mm facing N
- ENSUITE 2 BRD-112-001-001 W19: 1,000 × 750 mm facing E
- ENSUITE 3 BRD-112-001-001 W18: 1,000 × 750 mm facing E
- BED 3 BRD-189-010-001 W17: 700 × 2,700 mm facing E
- BED 3 BRD-189-010-001 W16: 1,800 × 3,000 mm facing S
- DINING VOID BRD-125-300-002 W21: 1,800 × 2,700 mm facing N
- ENTRY VOID BRD-125-300-002 W15: 1,100 × 1,765 mm facing S
- MASTER BED BRD-189-010-001 W14: 1,800 × 3,000 mm facing S
- MASTER BED BRD-154-300-002 W23: 800 × 3,000 mm facing W
- MASTER ENSUITE BRD-001-001-001 W22: 1,200 × 1,800 mm facing W
Certificate 0012687422-02, issued 5 June 2026, from the council's DA documents. Verify this certificate
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