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Home report
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11 Bertha Street Hill Top NSW 2575
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BASIX certificate and NatHERS rating
This home has a NatHERS rating of 7 stars out of 10. Its BASIX certificate commits it to 6.6 kW of solar panels and a 5,000 litre rainwater tank. Its NatHERS certificate lists insulation in the external walls, ceiling and floor. It beat its BASIX energy target, scoring 100 against 63.
Key features
- Windows
- 13 windows and glazed doors: Aluminium B DG Argon Fill Clear-Clear; Aluminium B DG Argon Fill High Solar Gain low-E
- Wall insulation
- R2.5, R3.5
- Roof and ceiling insulation
- Ceiling R5, roof Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour
- Hot water
- Electric heat pump with a performance of 26 to 30 STCs or better
- Air conditioning and heating
- 1-phase airconditioning, ducted (living area and bedroom)
Built by Oakworth Homes.
BASIX certificate
- Energy score
- 100 (target 63)
- Water score
- 40 (target 40)
- Thermal performance
- Pass
- Materials score
- -45
- Heating load
- 117 MJ/m² a year
- Cooling load
- 5 MJ/m² a year
- Bedrooms
- 3
- Conditioned floor area
- 137.2 m²
- Unconditioned floor area
- 12.5 m²
- Site area
- 1,099 m²
- Roof area
- 254 m²
- Garden area
- 450 m²
- Climate zone
- NatHERS climate zone 24
- Hot water
- Electric heat pump with a performance of 26 to 30 STCs or better
- Solar panels
- 6.6 kW
- Rainwater tank
- 5,000 litres
- Fixtures
- Showerheads 4 star, toilets 4 star, kitchen taps 5 star, basin taps 5 star
- LED lighting
- Yes
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 27.1 m², single glazing 27.1 m²
Heating
- Living area: 1-phase airconditioning - ducted; Energy rating: 3.5 star (cold zone)
- Bedroom: 1-phase airconditioning - ducted; Energy rating: 3.5 star (cold zone)
Cooling
- Living area: 1-phase airconditioning - ducted; Energy rating: 3.5 star (cold zone)
- Bedroom: 1-phase airconditioning - ducted; Energy rating: 3.5 star (cold zone)
Construction and insulation
- Floor: concrete slab on ground, waffle pod slab (not specified)
- Garage floor: concrete slab on ground, waffle pod slab (not specified)
- External wall: framed (fibre cement sheet or boards); frame: timber - untreated softwood. all external walls fibreglass batts or roll+ foil/sarking
- Internal wall shared with garage: plasterboard; frame: timber - untreated softwood (fibreglass batts or roll)
- Internal wall: plasterboard; frame: timber - untreated softwood (no added insulation)
- Ceiling and roof: flat ceiling / pitched roof, framed - metal roof, timber - untreated softwood (ceiling: fibreglass batts or roll; roof: foil/sarking.)
Certificate 1799501S, issued 12 June 2025, from the council's DA documents.
NatHERS certificate
- Star rating
- 7 stars
- Rated with
- BERS Pro v5.2.3 (3.23)
- Rated on
- 12 Jun 2025
- Wall insulation
- R2.5, R3.5
- Ceiling insulation
- R5
- Floor insulation
- R2.5, R3.5, R2
- LED downlights
- 35
- Living room glazing by direction
- N 2.5 m², E 5.4 m², S 7.6 m²
- All glazing by direction
- N 8.2 m², E 6.2 m², S 9 m², W 8 m²
Roof
- Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour
Window types
- ALM-006-01 A Aluminium B DG Argon Fill Clear-Clear: U-value 4.5, SHGC 0.61
- ALM-006-03 A Aluminium B DG Argon Fill High Solar Gain low-E: U-value 4.1, SHGC 0.52
Window schedule
- Kitchen/Living1, window ALM-006-01 A: 2,100 × 1,200 mm facing N
- Kitchen/Living1, window ALM-006-03 A: 1,800 × 1,500 mm facing E
- Kitchen/Living1, window ALM-006-03 A: 1,800 × 1,500 mm facing E
- Kitchen/Living1, window ALM-006-03 A: 2,100 × 3,600 mm facing S
- Ens, window ALM-006-01 A: 900 × 900 mm facing E
- Bed 1, window ALM-006-01 A: 2,100 × 900 mm facing N
- Bed 1, window ALM-006-01 A: 2,100 × 900 mm facing N
- Bed 1, window ALM-006-01 A: 2,100 × 900 mm facing N
- MPR, window ALM-006-03 A: 600 × 2,400 mm facing S
- Bed 3, window ALM-006-01 A: 1,500 × 1,500 mm facing W
- Laundry, window ALM-006-01 A: 2,100 × 820 mm facing W
- Bath, window ALM-006-01 A: 1,200 × 1,500 mm facing W
- Bed 2, window ALM-006-01 A: 1,500 × 1,500 mm facing W
Certificate 0011978723, issued 12 June 2025, from the council's DA documents. Verify this certificate
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