top of page

NatHERS - single granny flat


Do you need a NatHERS only Certification for your project?


If your development is in Australia other than NSW and is a single granny flat, then this is the right package for you.



Email full drawing set in PDF format (details are outlined below) along with purchase details. Once we receive information, we will review it, and get back to you in case any more details are needed. Once all information is received, we will commence the assessment and deliver drafts within nominated time-frame. We will deliver drafts and comments to you or a nominated by yourself person for feedback. When information is confirmed from your end, then we will be issuing final documentation ready for council submission.


Delivery Time:

3-5 business days nominal. 

NOTE: If you require express processing feel free to select our express option at the checkout.


Additional useful generic NatHERS information:

NatHERS in Australia is a certification process and is required for almost all new residential developments, either single or multi types. NatHERS was developed as "a measuring tape" so to estimate a home's use of energy allocated heating & cooling throughout the year and in order to set minimum benchmarks for star rating performance that dwellings are allowed to be built as. Currently with the exception of NSW, in most cases the minimum NatHERS energy rating is 6 stars.


What information is needed to produce a NatHERS certificate?

  • Site plan showing true North orientation
  • All plans, sections, elevations
  • Window schedule
  • Construction types
  • Colour tones of roof and external walls
  • Floor coverings information

Generally, add-on appliances such as, air-conditioners, fans, etc. are not required for a NatHERS assessment as they do not affect the star rating. NatHERS energy ratings are basically translating in terms of heating & cooling loads the sound or not, design of a dwelling.


Thermal comfort - NatHERS is a national scheme, where dwellings are rated according to their thermal performance for summer and winter. That is achieved via the simulation of the proposed dwelling by specialty software packages such as AccuRate, Firstrate and BersPro. The way this is done is the whole geometry of the subject building, including neighbouring buildings for shading, location, orientation and building constructions are inputted. All of the above are calculated thus predicting cooling and heating loads.


NOTE: 7.6 stars depicted in the product image is for demonstration only and in no way we imply or guarantee that the performance of your project will be in line with this.


    Nathers certification only valid Australia wide, including stamped drawings. If you require a BASIX certificate, you will need to add this option to your cart.


    If we do not deliver on time, you will receive a 20% refund on your purchase. This time line is effective from the time we receive all information required for the assessment, until the point we deliver the drafts for perusal by you or a nominated party, as this is the time we are in control off.


    All certifications and related documents will be emailed to nominated email account

Product Page: Stores_Product_Widget
bottom of page