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11 Birrong Avenue Belrose NSW 2085

BASIX certificate and NatHERS rating

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Key features

Wall insulation
Or R1.70 including construction

BASIX certificate (alterations and additions)

This BASIX certificate is for alterations and additions, such as an extension or a pool, rather than a whole new house.

LED lighting
Yes

Construction and insulation

  • Suspended floor with open subfloor: framed (R0.7). R0.8 (down) (or R1.50 including construction) N/A
  • Floor above existing dwelling or building (no added insulation)
  • External wall: framed (weatherboard, fibro, metal clad) R1.30 (or R1.70 including construction)
  • External wall: brick veneer R1.16 (or R1.70 including construction)
  • Flat ceiling, pitched roof ceiling: R3.00 (up), roof: foil/sarking medium (solar absorptance 0.475 - 0.70)

Certificate A1804864_02, issued 24 October 2025, from the council's DA documents.

Other certificates for this address

BASIX certificate (alterations and additions), certificate A1804864, issued 20 July 2025

BASIX certificate (alterations and additions)

This BASIX certificate is for alterations and additions, such as an extension or a pool, rather than a whole new house.

LED lighting
Yes

Construction and insulation

  • Suspended floor with open subfloor: framed (R0.7). R0.8 (down) (or R1.50 including construction) N/A
  • Floor above existing dwelling or building (no added insulation)
  • External wall: framed (weatherboard, fibro, metal clad) R1.30 (or R1.70 including construction)
  • External wall: brick veneer R1.16 (or R1.70 including construction)
  • Flat ceiling, pitched roof ceiling: R3.00 (up), roof: foil/sarking medium (solar absorptance 0.475 - 0.70)

Certificate A1804864, issued 20 July 2025, from the council's DA documents.

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What else should you know about this block?

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