780 Woollamia Road Woollamia NSW 2540

BASIX certificate and NatHERS rating

Finding the block on the map…

Built by Matthew Deru Carpentry.

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

Construction and insulation

Suspended floor with enclosed subfloor: AAC panel on frame (75 mm) (R0.88). R0.82 (down) (or R1.70 including construction) N/A
External wall: framed (weatherboard, fibro, metal clad) R1.30 (or R1.70 including construction)
Flat ceiling, pitched roof ceiling: R1.20 (up), roof: foil backed blanket (75 mm) light (solar absorptance < 0.475)
Raked ceiling, pitched/skillion roof: framed ceiling: R1.50 (up), roof: foil backed blanket (75 mm) light (solar absorptance < 0.475)

Certificate A1793219_03, issued 14 January 2026, from the council's DA documents.

BASIX certificate (alterations and additions), certificate A1793219, issued 29 April 2025

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

Construction and insulation

Suspended floor with enclosed subfloor: AAC panel on frame (75 mm) (R0.88). R0.82 (down) (or R1.70 including construction) N/A
External wall: framed (weatherboard, fibro, metal clad) R1.30 (or R1.70 including construction)
Flat ceiling, pitched roof ceiling: R1.20 (up), roof: foil backed blanket (75 mm) light (solar absorptance < 0.475)
Raked ceiling, pitched/skillion roof: framed ceiling: R1.50 (up), roof: foil backed blanket (75 mm) light (solar absorptance < 0.475)

Certificate A1793219, issued 29 April 2025, from the council's DA documents.

What else should you know about this block?