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31 Worthing Road Erina NSW 2250

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BASIX certificate and NatHERS rating

This home has a NatHERS rating of 7.1 stars out of 10. It beat its BASIX energy and water targets, scoring 71 against 70 for energy and 42 against 40 for water.

Key features

Windows
27 windows and glazed doors: Timber A SG Clear; HORIZON Entry Frame/Door - Single Glazed; Horizon Awning Window and 3 more types
Roof and ceiling insulation
Roof Added insulation absorptance Roof Colour ATTIC-METAL-01: Pitched / Attic Metal Roof (Roofspace) & Flat PB Ceiling 1.30, medium colour

BASIX certificate (multi dwelling)

This BASIX certificate covers more than one dwelling on the lot, such as a house and a granny flat, so some of its numbers are for the whole development.

Energy score
71 (target 70)
Water score
42 (target 40)
Thermal performance
Pass
Materials score
-100
Site area
20,360 m²
Roof area
489 m²
Climate zone
NatHERS climate zone 15
Clothes line
Yes

Certificate 1841701M, issued 13 April 2026, from the council's DA documents.

NatHERS certificate

Star rating
7.1 stars
Rated with
Hero 4.1
Rated on
13 Apr 2026
Living room glazing by direction
S 7.7 m², W 15.8 m²
All glazing by direction
N 3.2 m², E 21.7 m², S 9.7 m², W 36.2 m²

Roof

  • Added insulation absorptance Roof Colour ATTIC-METAL-01: Pitched / Attic Metal Roof (Roofspace) & Flat PB Ceiling 1.30, medium colour

Window types

  • TIM-001-01 W Timber A SG Clear: U-value 5.4, SHGC 0.56
  • WID-004-013 HORIZON Entry Frame/Door - Single Glazed: U-value 4.6, SHGC 0.5
  • WID-101-001 Horizon Awning Window: U-value 6.4, SHGC 0.66
  • WID-101-002 Horizon Awning Window: U-value 3.4, SHGC 0.49
  • WID-101-019 Horizon Awning Window: U-value 4.9, SHGC 0.55
  • WID-102-005 Horizon Sliding Window: U-value 4.5, SHGC 0.63
  • WID-102-017 Horizon Sliding Window: U-value 6.2, SHGC 0.61
  • WID-105-021 Horizon Stacking Door: U-value 3, SHGC 0.55
  • WID-106-001 Horizon Fixed Window: U-value 5.9, SHGC 0.8
  • WID-106-020 Horizon Fixed Window: U-value 2.3, SHGC 0.59

Window schedule

  • Bed 1, window WID-106-001: 2,000 × 700 mm facing W
  • Bed 1, window WID-004-013: 2,400 × 820 mm facing W
  • Bed 1, window WID-004-013: 2,400 × 820 mm facing W
  • Bed 1, window WID-101-019: 2,400 × 980 mm facing W
  • Bed 1, window WID-101-019: 2,400 × 980 mm facing W
  • Bed 2, window WID-101-019: 1,800 × 2,100 mm facing E
  • Bed 3, window WID-102-005: 1,200 × 1,800 mm facing W
  • Bed 4, window WID-102-005: 1,200 × 1,800 mm facing W
  • Ens (Bed 3), window WID-102-017: 1,200 × 700 mm facing W
  • Ens (Bed 4), window WID-102-017: 1,200 × 700 mm facing W
  • Ensuite (Bed 1), window WID-102-017: 1,000 × 800 mm facing S
  • Gym, window WID-101-002: 1,800 × 1,200 mm facing E
  • Gym, window WID-101-002: 1,800 × 1,200 mm facing E
  • Home Theatre, window WID-101-002: 1,800 × 1,200 mm facing E
  • Home Theatre, window WID-101-002: 1,800 × 1,200 mm facing E
  • Kitchen/Living/Dining, window WID-106-020: 2,000 × 1,200 mm facing W
  • Kitchen/Living/Dining, window WID-106-020: 2,000 × 1,200 mm facing W
  • Kitchen/Living/Dining, window WID-105-021: 2,400 × 4,600 mm facing W
  • Kitchen/Living/Dining, window WID-105-021: 2,400 × 3,200 mm facing S
  • Laundry, window TIM-001-01 W: 2,400 × 820 mm facing N
  • Loft/Dormer, window WID-101-002: 1,320 × 3,250 mm facing W
  • Loft/Dormer, window WID-106-020: 1,320 × 910 mm facing N
  • Loft/Dormer, window WID-101-002: 1,000 × 1,400 mm facing E
  • Loft/Dormer, window WID-101-002: 1,000 × 1,400 mm facing E
  • Loft/Dormer, window WID-106-020: 1,320 × 910 mm facing S
  • Parent's Retreat/Study, window WID-101-019: 1,800 × 1,800 mm facing E
  • WIR 2 (Bed 1), window WID-101-001: 1,800 × 1,800 mm facing E

Certificate HR-5LF5WP-01, issued 13 April 2026, from the council's DA documents. Verify this certificate

Other certificates for this address

NatHERS certificate, certificate HR-WANK4E-01, issued 13 April 2026

NatHERS certificate

Star rating
7.1 stars
Rated with
Hero 4.1
Rated on
13 Apr 2026
Living room glazing by direction
S 8.6 m², W 2.9 m²
All glazing by direction
N 0.6 m², E 2.2 m², S 8.6 m², W 5 m²

Roof

  • Added insulation absorptance Roof Colour ATTIC-METAL-01: Pitched / Attic Metal Roof (Roofspace) & Flat PB Ceiling 1.30, medium colour

Window types

  • WID-101-019 Horizon Awning Window: U-value 4.9, SHGC 0.55
  • WID-101-031 Horizon Awning Window: U-value 6.2, SHGC 0.54
  • WID-102-001 Horizon Sliding Window: U-value 6.3, SHGC 0.76
  • WID-102-005 Horizon Sliding Window: U-value 4.5, SHGC 0.63
  • WID-104-007 Horizon Sliding Door: U-value 4.4, SHGC 0.61

Window schedule

  • Bath, window WID-101-031: 1,000 × 600 mm facing N
  • Bed 1, window WID-102-001: 1,200 × 1,800 mm facing E
  • Bed 2, window WID-102-001: 1,200 × 1,800 mm facing W
  • Kitchen/Meals/Living, window WID-101-019: 1,200 × 1,500 mm facing S
  • Kitchen/Meals/Living, window WID-102-005: 1,200 × 2,400 mm facing W
  • Kitchen/Meals/Living, window WID-104-007: 2,100 × 2,400 mm facing S
  • Kitchen/Meals/Living, window WID-101-019: 1,200 × 1,500 mm facing S

Certificate HR-WANK4E-01, issued 13 April 2026, from the council's DA documents. Verify this certificate

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