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FAQs
Explore frequently asked questions about BASIX certificates and our services.
Frequently asked questions
General
A BASIX Certificate (Building Sustainability Index) is a document required as part of a Development Application (DA) in NSW. It's generated through the NSW Government Department of Planning and Infrastructure's online tool and shows that a proposed development meets sustainability targets for water, energy, and thermal comfort.
Yes, at the moment you can do your own BASIX Certificate and it can be quite easy to tick the boxes, but without having the experience and knowledge we offer, your commitments could add thousands of unnecessary dollars to your overall costs.You will need to register with the NSW Government to create an account to do your own BASIX Certificate.
Unlike many other assessors, Peter Waller, the principal of the BASIX Certificate Centre been in the building industry since 1980, starting as a carpenter, then Estimator and licensed Builder, plus Thermal Comfort Assessor, and all those skills help achieve the best possible outcome for you.We just don’t provide you with the first option for a pass, because it may not be practical, and I do discuss possible options to help achieve the necessary Heating & Cooling loads.We have seen the outcome of some of these cheap, quick assessments, and have been engaged by builders to provide new certificates with a better outcome.We use the Accurate Home (Sustainability) software, which is the leader in Thermal Comfort simulation, developed by the CSIRO, and takes on average 30% longer on a project then the other programs, but gives more flexibility in materials for a positive outcome.
We term "soft-option solutions" those BASIX Certificates that have been generated by others to simply receive a pass or result, without any thought to practical building solutions or associated costs. A BASIX Certificate can be obtained by using materials and selections that will certainly give you a pass, but in most cases are "over-kill", and can cost you thousands of unnecessary dollars, simply because the provider may have given you a cheap price, and therefore want a quick result in producing the BASIX Certificate.
With each project being different, maybe only slightly with the BASIX Certificate, but greatly with the NatHERS or Thermal Comfort Certificate, so to can the prices vary. Since the October 2023 BASIX increases, the minimum cost for the BASIX suitable for a single storey home, not needed a NatHERS Certificate, is $440.00. The minimum cost for a double storey home is $595.00. NatHERS Certificates, if required, add a minimum cost of $440.00 with today's 7.0 Star requirement, and can be a lot more depending on the glazing to floor area ratio, as well as other design features. BASIX for Swimming pools are $70.00 and Alterations and Additions start at $135.00, with both attracting the government fee of $33.00.
As of the 1st July 2007, any new extension or addition with a value of more than $50,000 or a pool with a volume greater than 40,000 litres will require a BASIX Certificate to be lodged with the application. However, it should be noted, that with the release of the Portal, some application below these are requirements are still being tagged as needing a BASIX Certificate. Contact us if you need help if this happens to you.
Yes, if we did your BASIX Certificate, we can certainly make changes for you, and you will need to send us an email with the required changes.If we didn't do your BASIX Certificate, we can still do you changes, if the original person is willing to transfer the job to our account. Some are willing to do this free of charge, some will want a fee, and those may not want to transfer the job to anyone.In these cases, we have needed to create new BASIX Certificates for clients, and the price varies depending on the work involved.
A Section J Report is an energy efficiency compliance assessment under Volume One of the Building Code of Australia (BCA). It applies to Class 2–9 buildings — typically commercial developments and certain residential buildings not covered under standard BASIX, such as boarding houses, hostels, guesthouses, hotels, motels, and accommodation for aged, children, or people with disabilities.
A Thermal Comfort Certificate (also called a NatHERS Certificate or Simulation Method assessment) satisfies the Thermal Comfort section of a BASIX Certificate. For new single dwellings, a DIY option is also available. For multi-dwellings such as dual occupancy, duplexes, and units, the Simulation Method is the only option.
Only certain types of projects are able to use the DIY system in BASIX, and you are only able to use the materials generic to the DIY system.Homes that can utilise the DIY system must not be more than 300m² of Conditioned space, be no more than two storeys, and have a Glazing to Floor area ratio of no more than 40%.At the BASIX Certificate Centre, we certainly can provide homes using the DIY, but due to the result, it is sometimes necessary to provide a separate NatHERS Certificate, as we can then determine where the home may need more attention in order to achieve the 7.0 Star requirement, and provide a better outcome.
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