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2 Oberon Street Randwick NSW 2031

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BASIX certificate and NatHERS rating

This home has a NatHERS rating of 7.1 stars out of 10. Its NatHERS certificate lists insulation in the external walls, ceiling and floor. It beat its BASIX energy target, scoring 70 against 68.

Key features

Windows
11 windows and glazed doors: Aluminium B SG Clear; Aluminium A SG Clear
Wall insulation
R2
Roof and ceiling insulation
Ceiling R2.5, roof Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, light colour
Hot water
Gas instantaneous with a performance of 6 stars
Air conditioning and heating
1-phase airconditioning, non ducted (living area and bedroom)

BASIX certificate

Energy score
70 (target 68)
Water score
40 (target 40)
Thermal performance
Pass
Materials score
4
Heating load
18 MJ/m² a year
Cooling load
11 MJ/m² a year
Bedrooms
1
Conditioned floor area
58 m²
Unconditioned floor area
4.1 m²
Site area
409 m²
Roof area
60 m²
Climate zone
NatHERS climate zone 56
Hot water
Gas instantaneous with a performance of 6 stars
Fixtures
Showerheads 4 star, toilets 4 star, kitchen taps 4 star, basin taps 5 star
LED lighting
Yes
Cooktop
Gas
Maximum glazing
aluminium frames 18 m², single glazing 18 m²

Heating

  • Living area: 1-phase airconditioning - non ducted; Energy rating: EER 3.0 - 3.5
  • Bedroom: 1-phase airconditioning - non ducted; Energy rating: EER 3.0 - 3.5

Cooling

  • Living area: 1-phase airconditioning - non ducted; Energy rating: EER 3.0 - 3.5
  • Bedroom: 1-phase airconditioning - non ducted; 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, particle board; frame: timber - H2 treated softwood (no added insulation)
  • Garage floor: concrete slab on ground (no added insulation)
  • External wall: brick veneer; frame: timber - H2 treated softwood. all external walls fibreglass batts or roll
  • External garage wall: brick veneer; 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 - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)

Certificate 1825891S_02, issued 23 April 2026, from the council's DA documents.

NatHERS certificate

Star rating
7.1 stars
Rated with
BERS Pro v5.2.6 (3.23)
Rated on
10 Dec 2025
Wall insulation
R2
Ceiling insulation
R2.5
Floor insulation
R2
LED downlights
15
Living room glazing by direction
N 6.6 m²
All glazing by direction
N 12.6 m², S 2.7 m², W 2.7 m²

Roof

  • Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, light colour
  • Corrugated Iron Timber Frame No Insulation, Only an Air Gap, medium colour

Window types

  • ALM-002-01 A Aluminium B SG Clear: U-value 6.7, SHGC 0.7
  • ALM-001-01 A Aluminium A SG Clear: U-value 6.7, SHGC 0.57

Window schedule

  • Garage, window ALM-002-01 A: 2,100 × 2,300 mm facing N
  • Garage, window ALM-002-01 A: 1,200 × 1,500 mm facing W
  • Kitchen/Living, window ALM-002-01 A: 2,100 × 2,300 mm facing N
  • Kitchen/Living, window ALM-002-01 A: 1,200 × 1,500 mm facing N
  • Bath, window ALM-002-01 A: 600 × 900 mm facing S
  • Ensuite, window ALM-001-01 A: 600 × 750 mm facing W
  • Bedroom 1, window ALM-001-01 A: 585 × 1,900 mm facing N
  • Retreat, window ALM-001-01 A: 600 × 900 mm facing S
  • Retreat, window ALM-001-01 A: 585 × 1,900 mm facing S
  • Retreat, window ALM-001-01 A: 600 × 900 mm facing S
  • Retreat, window ALM-001-01 A: 600 × 750 mm facing W

Certificate 0012606232, issued 10 December 2025, from the council's DA documents. Verify this certificate

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