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18 Wallis Avenue Strathfield NSW 2135

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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 5.1 kW of solar panels and a 3,200 litre rainwater tank.

Key features

Windows
58 windows and glazed doors: Aluminium A DG Argon Fill High Solar Gain low-E -Clear; Aluminium B DG Argon Fill High Solar Gain low-E -Clear
Wall insulation
Not specified
Roof and ceiling insulation
Roof Added insulation absorptance Roof Colour SLAB-200-CEIL-01: Concrete Slab (200mm) with Suspended PB Ceiling 0.00, medium colour
Hot water
Gas instantaneous with a performance of 6 stars
Air conditioning and heating
1-phase airconditioning, ducted (living area and bedroom)

BASIX certificate

Energy score
72 (target 72)
Water score
40 (target 40)
Thermal performance
Pass
Materials score
-100
Heating load
18 MJ/m² a year
Cooling load
12 MJ/m² a year
Bedrooms
6
Conditioned floor area
441.8 m²
Unconditioned floor area
26 m²
Site area
911 m²
Roof area
436 m²
Garden area
416 m²
Climate zone
NatHERS climate zone 56
Hot water
Gas instantaneous with a performance of 6 stars
Solar panels
5.1 kW
Rainwater tank
3,200 litres
Fixtures
Showerheads 4 star, toilets 4 star, kitchen taps 5 star, basin taps 5 star
LED lighting
Yes
Cooktop
Gas
Clothes line
Yes
Maximum glazing
aluminium frames 149.2 m², double glazing 149.2 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: 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, conventional slab (not specified)
  • Floor: suspended floor above enclosed subfloor, concrete - suspended; frame: timber - H2 treated softwood (not specified)
  • Floor: suspended floor above open subfloor, concrete - suspended; frame: timber - H2 treated softwood (not specified)
  • Floor: above habitable rooms or mezzanine, concrete - suspended; frame: timber - H2 treated softwood (not specified)
  • Floor: suspended floor above garage, concrete - suspended; frame: timber - H2 treated softwood (not specified)
  • Garage floor: concrete slab on ground (not specified)
  • External wall: cavity brick; frame: no frame (not specified)
  • External wall: concrete panel/plasterboard; frame: timber - H2 treated softwood (not specified)
  • Internal wall: single skin masonry; frame: no frame (not specified)
  • Ceiling and roof: flat ceiling / flat roof, concrete - plasterboard internal, timber - H2 treated softwood (ceiling: not specified; roof: not specified.)

Certificate 1835365S, issued 2 March 2026, from the council's DA documents.

NatHERS certificate

Star rating
7 stars
Rated with
Hero 4.1
Rated on
02 Mar 2026
Living room glazing by direction
N 11.2 m², NNE 3.9 m², ENE 3.2 m², E 23.1 m², S 2.7 m², W 12.5 m²
All glazing by direction
N 38 m², NNE 3.9 m², ENE 3.7 m², E 35 m², SSE 0.5 m², S 32.6 m², SW 0.5 m², W 34.7 m², NW 0.5 m²

Roof

  • Added insulation absorptance Roof Colour SLAB-200-CEIL-01: Concrete Slab (200mm) with Suspended PB Ceiling 0.00, medium colour
  • SLAB-200-EXP-01: Concrete Slab (200mm) with Exposed Concrete Ceiling 0.00, medium colour

Window types

  • ALM-005-03 A Aluminium A DG Argon Fill High Solar Gain low-E -Clear: U-value 4.1, SHGC 0.47
  • ALM-006-03 A Aluminium B DG Argon Fill High Solar Gain low-E -Clear: U-value 4.1, SHGC 0.52

Window schedule

  • BATH, window ALM-005-03 A: 600 × 900 mm facing E
  • BED 2, window ALM-005-03 A: 1,800 × 1,800 mm facing N
  • BED 3, window ALM-005-03 A: 600 × 2,400 mm facing N
  • BED 3, window ALM-006-03 A: 2,700 × 1,400 mm facing W
  • BED 3, window ALM-006-03 A: 2,700 × 441 mm facing W
  • BED 3, window ALM-006-03 A: 2,700 × 1,359 mm facing W
  • BED 4, window ALM-005-03 A: 900 × 2,400 mm facing S
  • BED 4, window ALM-006-03 A: 2,700 × 3,000 mm facing W
  • BED 5, window ALM-005-03 A: 1,800 × 1,800 mm facing S
  • BED 6, window ALM-005-03 A: 1,500 × 1,800 mm facing S
  • ENS, window ALM-005-03 A: 900 × 1,800 mm facing N
  • ENS 3, window ALM-005-03 A: 600 × 900 mm facing N
  • ENS 4, window ALM-005-03 A: 600 × 900 mm facing S
  • ENS 5, window ALM-005-03 A: 600 × 900 mm facing S
  • ENS 6, window ALM-005-03 A: 600 × 900 mm facing S
  • ENS2, window ALM-005-03 A: 600 × 900 mm facing N
  • FOYER, window ALM-005-03 A: 600 × 800 mm facing N
  • GARAGE, window ALM-005-03 A: 600 × 3,000 mm facing N
  • GARAGE, window ALM-005-03 A: 600 × 3,000 mm facing N
  • GARAGE, window ALM-005-03 A: 600 × 2,400 mm facing S
  • GARAGE, window ALM-005-03 A: 600 × 2,400 mm facing S
  • HALL, window ALM-005-03 A: 600 × 3,000 mm facing N
  • HALL, window ALM-005-03 A: 600 × 3,000 mm facing S
  • KITCHEN/LIVING, window ALM-005-03 A: 2,100 × 900 mm facing N
  • KITCHEN/LIVING, window ALM-005-03 A: 1,100 × 900 mm facing N
  • KITCHEN/LIVING, window ALM-005-03 A: 1,100 × 900 mm facing N
  • KITCHEN/LIVING, window ALM-006-03 A: 600 × 3,800 mm facing N
  • KITCHEN/LIVING, window ALM-006-03 A: 2,700 × 1,448 mm facing NNE
  • KITCHEN/LIVING, window ALM-006-03 A: 2,700 × 1,198 mm facing ENE
  • KITCHEN/LIVING, window ALM-006-03 A: 2,700 × 2,100 mm facing E
  • KITCHEN/LIVING, window ALM-005-03 A: 1,500 × 1,800 mm facing S
  • KITCHEN/LIVING, window ALM-005-03 A: 2,700 × 1,500 mm facing W
  • KITCHEN/LIVING, window ALM-006-03 A: 2,400 × 3,500 mm facing W
  • KITCHEN/LIVING, window ALM-005-03 A: 2,100 × 800 mm facing N
  • KITCHEN/LIVING, window ALM-005-03 A: 2,100 × 800 mm facing N
  • KITCHEN/LIVING, window ALM-005-03 A: 2,100 × 800 mm facing N
  • KITCHEN/LIVING, window ALM-006-03 A: 2,700 × 4,000 mm facing E
  • LDRY, window ALM-005-03 A: 1,500 × 1,000 mm facing S
  • MASTER, window ALM-005-03 A: 900 × 3,000 mm facing N
  • MASTER, window ALM-006-03 A: 2,700 × 4,000 mm facing E
  • OFFICE, window ALM-005-03 A: 600 × 3,000 mm facing W
  • OFFICE, window ALM-006-03 A: 2,700 × 3,000 mm facing S
  • PANTRY, window ALM-005-03 A: 1,500 × 1,500 mm facing N
  • SITTING, window ALM-006-03 A: 2,600 × 900 mm facing N
  • SITTING, window ALM-006-03 A: 1,800 × 900 mm facing N
  • SITTING, window ALM-005-03 A: 1,800 × 900 mm facing N
  • SITTING, window ALM-005-03 A: 1,200 × 2,000 mm facing S
  • SITTING, window ALM-006-03 A: 2,100 × 1,500 mm facing W
  • SITTING, window ALM-006-03 A: 900 × 3,300 mm facing N
  • SITTING, window ALM-006-03 A: 900 × 3,300 mm facing S
  • SITTING, window ALM-006-03 A: 900 × 600 mm facing W
  • SITTING, window ALM-006-03 A: 900 × 600 mm facing E
  • SITTING, window ALM-006-03 A: 900 × 500 mm facing ENE
  • SITTING, window ALM-006-03 A: 900 × 500 mm facing SSE
  • SITTING, window ALM-006-03 A: 900 × 500 mm facing NW
  • SITTING, window ALM-006-03 A: 900 × 500 mm facing SW
  • KITCHEN/LIVING, window ALM-005-03 A: 1,800 × 3,700 mm facing E
  • WC, window ALM-005-03 A: 600 × 900 mm facing S

Certificate HR-8R1PED-01, issued 2 March 2026, from the council's DA documents. Verify this certificate

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