Tahmoor, NSW
BASIX & NatHERS assessments in Tahmoor
BASIX and NatHERS for renovations, extensions, granny flats and knock-down rebuilds in Tahmoor and surrounds, Wollondilly Shire Council area.
BASIX & NatHERS for Tahmoor homes
Tahmoor is an established Wollondilly township where renovations, extensions, granny flats and knock-down rebuilds all trigger BASIX, and new builds need a 7-star NatHERS rating. We help owners meet the requirements without over-capitalising on older homes.
Renovations and additions in Tahmoor over the BASIX threshold need a BASIX certificate, while a knock-down rebuild or new granny flat needs both BASIX and a NatHERS assessment. Sitting on the cooler Wollondilly tablelands edge, winter warmth matters, so we focus on insulation, draught sealing and solar access.
How we help in Tahmoor
- BASIX for alterations and additions over the cost threshold
- Secondary dwelling (granny flat) BASIX certificates
- Insulation upgrades and draught sealing for cooler winters
- NatHERS modelling for knock-down rebuilds to reach 7 stars
Read more in our guides on reaching a 7-star rating, NSW climate zones and BASIX requirements. We also cover the wider Sydney region.
FAQ
Tahmoor - common questions
If your renovation or addition is over the BASIX cost threshold, yes. We confirm whether your project triggers BASIX and prepare the certificate.
Yes. A knock-down rebuild is a new home, so it needs a 7-star NatHERS rating plus BASIX.
Standard turnaround is 3-4 business days, with 24-hour express available.
Ready to get started?
Send us your plans and we’ll return approval-ready documentation in 3-4 days - with 24-hour express available.