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21 Vista Avenue Balgowlah Heights NSW 2093
BASIX certificate and NatHERS rating
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This home has a NatHERS rating of 7.3 stars out of 10. Its BASIX certificate commits it to 5 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 and water targets, scoring 84 against 72 for energy and 50 against 40 for water.
Key features
- Windows
- 27 windows and glazed doors
- Wall insulation
- R1.7, R2.7
- Roof and ceiling insulation
- Ceiling R6, R2
- Hot water
- Electric instantaneous
- Air conditioning and heating
- 3-phase airconditioning (living area and bedroom); Electric floor heating (living area and bedroom)
BASIX certificate
- Energy score
- 84 (target 72)
- Water score
- 50 (target 40)
- Thermal performance
- Pass
- Materials score
- -76
- Heating load
- 12 MJ/m² a year
- Cooling load
- 15 MJ/m² a year
- Bedrooms
- 5
- Conditioned floor area
- 244 m²
- Unconditioned floor area
- 16.8 m²
- Site area
- 519 m²
- Roof area
- 223 m²
- Garden area
- 132 m²
- Climate zone
- NatHERS climate zone 56
- Hot water
- Electric instantaneous
- Solar panels
- 5 kW
- Rainwater tank
- 5,000 litres
- Fixtures
- Showerheads 4 star, toilets 3 star, kitchen taps 3 star, basin taps 3 star
- LED lighting
- Yes
- Cooktop
- Induction
- Clothes line
- Yes
- Maximum glazing
- timber frames 158.5 m², single glazing 22.6 m², double glazing 136 m²
Heating
- Living area: electric floor heating; Energy rating: n/a
- Bedroom: electric floor heating; Energy rating: n/a
Cooling
- Living area: 3-phase airconditioning; Energy rating: EER 3.0 - 3.5
- Bedroom: 3-phase airconditioning; Energy rating: EER 3.0 - 3.5
Construction and insulation
- Floor: concrete slab on ground, conventional slab (no added insulation)
- Floor: above habitable rooms or mezzanine, concrete - suspended; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Floor: suspended floor above garage, concrete - suspended; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Garage floor: concrete slab on ground (no added insulation)
- External wall: cavity brick; frame: timber - H2 treated softwood (fibreglass batts or roll+ foil/sarking)
- External wall: reverse brick veneer; frame: timber - H2 treated softwood (fibreglass batts or roll+ foil/sarking)
- External wall: framed (solid or reconstituted timber weatherboard); frame: timber - H2 treated softwood (rockwool batts, roll or pump-in+ foil/sarking)
- External garage wall: cavity brick; frame: timber - H2 treated softwood (fibreglass batts or roll+ foil/sarking)
- 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/sarking.)
- Ceiling and roof: flat ceiling / flat roof, concrete - plasterboard internal, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil/sarking.)
Certificate 1738101S_03, issued 7 June 2024, from the council's DA documents.
NatHERS certificate
- Star rating
- 7.3 stars
- Rated with
- BERS Pro v5.1.9 (3.23)
- Rated on
- 07 Jun 2024
- Wall insulation
- R1.7, R2.7
- Ceiling insulation
- R6, R2
- Floor insulation
- R1.7, R2.7, R2
- Living room glazing by direction
- N 33.8 m², W 17.6 m²
- All glazing by direction
- N 63.1 m², E 38.6 m², S 7.1 m², W 44.3 m²
Window schedule
- Kitchen/Living TIM-004-03 W D0.5: 2,950 × 6,850 mm facing N
- Kitchen/Living TIM-004-03 W W0.3: 2,950 × 3,480 mm facing N
- Kitchen/Living TIM-004-03 W W0.4: 2,950 × 1,300 mm facing W
- Kitchen/Living TIM-004-03 W W0.3: 2,950 × 1,300 mm facing W
- Pantry TIM-002-03 W W0.5: 2,050 × 1,560 mm facing S
- Rumpus TIM-004-03 W D0.4: 2,950 × 3,350 mm facing W
- Rumpus TIM-004-03 W W0.2: 2,950 × 1,110 mm facing N
- Guest Bedroom TIM-004-03 W D0.3: 2,950 × 3,130 mm facing E
- ENS TIM-002-03 W W0.1: 2,950 × 850 mm facing E
- Laundry TIM-001-03 W D0.2: 2,950 × 1,000 mm facing E
- Bedroom 2 TIM-004-03 W D1.1: 2,550 × 3,250 mm facing E
- Bedroom 2 TIM-004-03 W W1.12: 1,950 × 500 mm facing W
- Bedroom 2 TIM-002-03 W W2.1: 630 × 2,400 mm facing N
- Bedroom 3 TIM-004-03 W D1.2: 2,550 × 2,410 mm facing E
- Bedroom 4 TIM-004-03 W W1.2: 1,950 × 1,110 mm facing N
- Bedroom 4 TIM-004-03 W D1.3: 2,550 × 2,400 mm facing E
- Bedroom 1 TIM-004-03 W D1.6: 2,550 × 4,740 mm facing W
- Bedroom 1 TIM-004-03 W D1.5: 2,550 × 6,850 mm facing N
- WIR TIM-002-03 W W1.7: 1,950 × 1,000 mm facing S
- ENS 1 TIM-002-03 W W1.8: 1,950 × 630 mm facing W
- Stairs-FF TIM-002-03 W W1.5: 2,550 × 2,470 mm facing W
- Void TIM-004-03 W W1.1: 2,550 × 1,300 mm facing E
- Kids Area TIM-004-03 W D1.4: 2,550 × 2,410 mm facing W
- Kids Area TIM-004-03 W W1.3: 1,950 × 1,110 mm facing N
- Kids Area TIM-004-03 W W1.4: 1,950 × 1,110 mm facing N
- Bathroom FF TIM-002-03 W W1.10: 1,950 × 1,000 mm facing S
- Hallway TIM-002-03 W W13: 585 × 6,609 mm facing N
Certificate 0009208414-04, issued 7 June 2024, from the council's DA documents. Verify this certificate
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