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5 Cook Street Randwick NSW 2031

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BASIX certificate and NatHERS rating

Key features

Wall insulation
Or R1.70 including construction

Built by Salt Build.

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

  • Concrete slab on ground floor (no added insulation)
  • Suspended floor with enclosed subfloor: framed (R0.7). R0.60 (down) (or R1.30 including construction) N/A
  • Suspended floor above garage: framed (R0.7) (no added insulation)
  • External wall: brick veneer R1.16 (or R1.70 including construction)
  • External wall: framed (weatherboard, fibro, metal clad) R1.30 (or R1.70 including construction)
  • Internal wall shared with garage: plasterboard (R0.36)
  • Raked ceiling, pitched/skillion roof: framed ceiling: R3.00 (up), roof: none light (solar absorptance < 0.475)
  • Flat ceiling, flat roof: framed ceiling: R3.00 (up), roof: none light (solar absorptance < 0.475)

Certificate A1785100_02, issued 16 July 2025, from the council's DA documents.

Other certificates for this address

BASIX certificate (alterations and additions), certificate A1785100, issued 26 February 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

  • Concrete slab on ground floor (no added insulation)
  • Suspended floor with enclosed subfloor: framed (R0.7). R0.60 (down) (or R1.30 including construction) N/A
  • Suspended floor above garage: framed (R0.7) (no added insulation)
  • External wall: brick veneer R1.16 (or R1.70 including construction)
  • External wall: framed (weatherboard, fibro, metal clad) R1.30 (or R1.70 including construction)
  • Internal wall shared with garage: plasterboard (R0.36)
  • Raked ceiling, pitched/skillion roof: framed ceiling: R3.00 (up), roof: none light (solar absorptance < 0.475)
  • Flat ceiling, flat roof: framed ceiling: R3.00 (up), roof: none light (solar absorptance < 0.475)

Certificate A1785100, issued 26 February 2025, from the council's DA documents.

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