• Dimitri Harakidas

New BASIX Rules - A challenge?

As most people in the building sustainability industry, have already felt the pinch of the new BASIX thermal comfort targets and how they impact on dwellings being built across NSW.

As many clients are contacting me on how to improve their designs and making them BASIX friendly, here are some of the tips;

1. An obvious one, however cannot be omitted. Window area to wall area ratio need to be kept in check. For standard constructions used, if the walls are made off about 25% window area, generally speaking in the Sydney region, cheap glazing options can be used to obtain compliance.

2. Add thermal mass where possible. Generally speaking again, the more the thermal mass the better, so go for concrete slabs and brick internal walls. Also brick veneer constructions are performing quire well.

3. Use hard materials for floor coverings on slab on ground, especially when cooling loads are an issue. Carpets and timber floors act as an insulator and heat cannot escape to the ground.

4. Window frame color tone can be very critical, so for more economical results, try to accommodate variations in color scheme.

5. Framed constructions, generally speaking are under-performing in the Sydney region especially coupled with large window areas. This is a NO NO scenario.

6. Be open to external window shading devices, such as louvres, blinds, hoods. They all provide great protection at the right orientations and can reduce glazing requirements dramatically.

7. Depending on dwelling configuration various other parameters do apply as well, however keep in mind that the longer and more narrow the building is, the poorer it will perform. So wherever possible design as close to the square shape a possible.

Hopefully the above information is useful. For more information please do contact me at

Dimitri Harakidas


ABSA Accredited Assessor

#basix #buildingsustainability #thermalcomfort #targets #windowarea #thermalmass #framedconstructions #BASIXcompliance #BASIXcertificate

83 views0 comments

Recent Posts

See All

Energy standards for new homes are set to rise in 2022.

On February 1, COAG Energy Ministers made a commitment to lift energy ratings for new homes to 6.5 or 7 stars. The changes are due to come into effect in the National Construction Code in 2022. They a

Get in touch

Basix Certificates & more

  • Houzz - Black Circle
  • LinkedIn - Black Circle
  • Twitter - Black Circle
  • Facebook - Black Circle
  • YouTube - Black Circle

AENEC Sydney

Level 14, 309 Kent Street

Sydney 2000



Mobile: 0416 316 204

Office:  02 9994 8906

AENEC Melbourne

Level 14, 330 Collins Street

Melbourne 3000



Mobile: 0416 316 204

Office: 03 8513 0934

© 2020 Wide Spectrum Pty Ltd Trading as AENEC Australian Energy Efficiency Consulting / ACN: 32 612 556 377