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22 Leo Drive Narrawallee NSW 2539
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 a 5,000 litre rainwater tank. It beat its BASIX energy and water targets, scoring 72 against 69 for energy and 43 against 40 for water.
Key features
- Windows
- 16 windows and glazed doors: A&L ComfortSmart Thermally Broken Sliding Door; Signature Hinged Door 100TB; Breezway Dualair Altair Louvre System in the Alspec McArthur EVO 150mm Centre Pocket Frame – Secondary Glazed and 1 more types
- Wall insulation
- All external walls fibreglass batts or roll+ foil/sarking
- Roof and ceiling insulation
- Roof Added insulation absorptance Roof Colour ATTIC-METAL-01: Pitched / Attic Metal Roof (Roofspace) & Flat PB Ceiling 1.80, light colour
- Hot water
- Electric boosted solar with a performance of 31 to 35 STCs or better
- Air conditioning and heating
- 3-phase airconditioning (living area and bedroom); 1-phase airconditioning, ducted (living area and bedroom)
BASIX certificate
- Energy score
- 72 (target 69)
- Water score
- 43 (target 40)
- Thermal performance
- Pass
- Materials score
- -4
- Heating load
- 27 MJ/m² a year
- Cooling load
- 34 MJ/m² a year
- Bedrooms
- 4
- Conditioned floor area
- 186.9 m²
- Unconditioned floor area
- 19.4 m²
- Site area
- 629 m²
- Roof area
- 244 m²
- Garden area
- 32 m²
- Climate zone
- NatHERS climate zone 18
- Hot water
- Electric boosted solar with a performance of 31 to 35 STCs or better
- Rainwater tank
- 5,000 litres
- Fixtures
- Showerheads 3 star, toilets 3 star, kitchen taps 3 star, basin taps 3 star
- LED lighting
- Yes
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 42.2 m², single glazing 32.2 m², double glazing 10 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: 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: suspended floor above open subfloor, hard wood; frame: timber - H2 treated softwood (fibreglass batts or roll)
- Garage floor: concrete slab on ground (no added insulation)
- External wall: framed (fibre cement sheet or boards); frame: timber - H2 treated softwood. all external walls fibreglass batts or roll+ foil/sarking
- External garage wall: framed (fibre cement sheet or boards); frame: timber - H2 treated softwood (fibreglass batts or roll+ foil/sarking)
- Internal wall: plasterboard; frame: timber - H2 treated softwood (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 - untreated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
- Ceiling and roof: raked ceiling / pitched or skillion roof, framed - metal roof, timber - untreated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
Certificate 1777382S_02, issued 5 September 2025, from the council's DA documents.
NatHERS certificate
- Star rating
- 7 stars
- Rated with
- Hero 4.1
- Rated on
- 12 Dec 2024
- Living room glazing by direction
- N 14.3 m², E 4.3 m²
- All glazing by direction
- N 19.7 m², E 8.2 m², S 7.4 m², W 6.9 m²
Roof
- Added insulation absorptance Roof Colour ATTIC-METAL-01: Pitched / Attic Metal Roof (Roofspace) & Flat PB Ceiling 1.80, light colour
- FLAT-02: Flat Framed / Skillion Metal Roof & Cathedral PB Ceiling (11°-33°) 1.80, light colour
Window types
- A&L-108-022 A&L ComfortSmart Thermally Broken Sliding Door: U-value 1.65, SHGC 0.47
- BRD-109-332 Signature Hinged Door 100TB: U-value 1.92, SHGC 0.39
- BRZ-011-003 Breezway Dualair Altair Louvre System in the Alspec McArthur EVO 150mm Centre Pocket Frame – Secondary Glazed: U-value 2.44, SHGC 0.1
- DOW-022-006 Thermally Broken Aluminium Sliding Window - Double Glazed - with TPS Spacer - with In-Line Reveal: U-value 1.91, SHGC 0.2
Window schedule
- BATH FF, window BRZ-011-003: 600 × 2,900 mm facing S
- BED 2, window BRZ-011-003: 2,400 × 850 mm facing S
- BED 3, window BRZ-011-003: 2,470 × 750 mm facing S
- ENTRY, window BRZ-011-003: 2,400 × 480 mm facing W
- ENTRY, window BRZ-011-003: 2,400 × 480 mm facing W
- ENTRY, window BRD-109-332: 2,400 × 1,020 mm facing W
- GARAGE, window BRZ-011-003: 600 × 2,900 mm facing S
- GUEST BED, window BRZ-011-003: 2,400 × 900 mm facing W
- KITCHEN LIVING, window BRZ-011-003: 1,200 × 3,600 mm facing E
- KITCHEN LIVING, window A&L-108-022: 2,500 × 4,000 mm facing N
- KITCHEN LIVING, window BRZ-011-003: 1,200 × 3,600 mm facing N
- LAUNDRY, window BRZ-011-003: 1,500 × 900 mm facing N
- LAUNDRY, window BRD-109-332: 2,500 × 900 mm facing N
- MASTER BED, window BRZ-011-003: 1,200 × 1,500 mm facing E
- MASTER BED, window BRZ-011-003: 1,200 × 1,500 mm facing N
- MASTER ENS, window DOW-022-006: 550 × 3,800 mm facing E
Certificate HR-ZDFKF6-02, issued 12 December 2024, from the council's DA documents. Verify this certificate
Other certificates for this address
NatHERS certificate, certificate HR-ZDFKF6-03, issued 5 September 2025
NatHERS certificate
- Star rating
- 7 stars
- Rated with
- Hero 4.1
- Rated on
- 05 Sep 2025
- Living room glazing by direction
- N 14.3 m², E 4.3 m²
- All glazing by direction
- N 19.7 m², E 8.2 m², S 7.4 m², W 6.9 m²
Roof
- Added insulation absorptance Roof Colour ATTIC-METAL-01: Pitched / Attic Metal Roof (Roofspace) & Flat PB Ceiling 1.80, light colour
- FLAT-02: Flat Framed / Skillion Metal Roof & Cathedral PB Ceiling (11°-33°) 1.80, light colour
Window types
- AWS-001-027 RESIDENTIAL SERIES 502/504 SLIDING WINDOW - SINGLE GLAZED: U-value 4.6, SHGC 0.65
- AWS-005-026 RESIDENTIAL SERIES 514 DOUBLE HUNG - SINGLE GLAZED: U-value 4.4, SHGC 0.65
- AWS-089-318 RES SERIES 704 FLUSH SLIDING DOOR: U-value 2.2, SHGC 0.54
- AWS-128-005 Series 755 Fixed Window: U-value 3.5, SHGC 0.6
- BRZ-003-013 52mm Altair Louvre Window System: U-value 4.3, SHGC 0.57
Window schedule
- BATH FF, window AWS-001-027: 600 × 2,900 mm facing S
- BED 2, window AWS-005-026: 2,400 × 850 mm facing S
- BED 3, window AWS-005-026: 2,470 × 750 mm facing S
- ENTRY, window AWS-128-005: 2,400 × 480 mm facing W
- ENTRY, window AWS-128-005: 2,400 × 480 mm facing W
- ENTRY HAHDS-045-050 D01: 2,400 × 1,020 mm facing W
- GARAGE, window AWS-128-005: 600 × 2,900 mm facing S
- GUEST BED, window BRZ-003-013: 2,400 × 900 mm facing W
- KITCHEN LIVING, window BRZ-003-013: 1,200 × 3,600 mm facing E
- KITCHEN LIVING, window AWS-089-318: 2,500 × 4,000 mm facing N
- KITCHEN LIVING, window BRZ-003-013: 1,200 × 3,600 mm facing N
- LAUNDRY, window AWS-005-026: 1,500 × 900 mm facing N
- LAUNDRY HAHDS-045-050 D02: 2,500 × 900 mm facing N
- MASTER BED, window AWS-005-026: 1,200 × 1,500 mm facing E
- MASTER BED, window AWS-005-026: 1,200 × 1,500 mm facing N
- MASTER ENS, window AWS-001-027: 550 × 3,800 mm facing E
Certificate HR-ZDFKF6-03, issued 5 September 2025, from the council's DA documents. Verify this certificate
BASIX certificate, certificate 1777382S, issued 12 December 2024
BASIX certificate
- Energy score
- 72 (target 69)
- Water score
- 43 (target 40)
- Thermal performance
- Pass
- Materials score
- -7
- Heating load
- 38 MJ/m² a year
- Cooling load
- 22 MJ/m² a year
- Bedrooms
- 4
- Conditioned floor area
- 186.9 m²
- Unconditioned floor area
- 19.4 m²
- Site area
- 629 m²
- Roof area
- 244 m²
- Garden area
- 32 m²
- Climate zone
- NatHERS climate zone 18
- Hot water
- Electric boosted solar with a performance of 31 to 35 STCs or better
- Rainwater tank
- 5,000 litres
- Fixtures
- Showerheads 3 star, toilets 3 star, kitchen taps 3 star, basin taps 3 star
- LED lighting
- Yes
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 42.2 m², double glazing 42.2 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: 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: suspended floor above open subfloor, hard wood; frame: timber - untreated softwood (fibreglass batts or roll)
- Garage floor: concrete slab on ground (no added insulation)
- External wall: framed (fibre cement sheet or boards); frame: timber - untreated softwood. all external walls fibreglass batts or roll+ foil/sarking
- External garage wall: framed (fibre cement sheet or boards); frame: timber - untreated softwood (fibreglass batts or roll+ foil/sarking)
- Internal wall: plasterboard; frame: timber - untreated softwood (no added insulation)
- Internal wall: plasterboard; frame: timber - untreated softwood (fibreglass batts or roll)
- Ceiling and roof: flat ceiling / pitched roof, framed - metal roof, timber - untreated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
- Ceiling and roof: raked ceiling / pitched or skillion roof, framed - metal roof, timber - untreated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
Certificate 1777382S, issued 12 December 2024, from the council's DA documents.
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