BASIX CERTIFICATES & ENERGY EFFICIENCY ASSESSMENTS
SECTION "J" OF BUILDING CODE OF AUSTRALIA

Greenhouse Gas Reduction and Sensible House Design
Every new house or unit must have a Basix Certificate with a thermal assessment. Building Diagnosis Centre chartered architect accredited in this field can provide Basix Certificates and Thermal Assessments to our clients i.e. architects, building designers, property managers and homeowners.
It is common knowledge by now that burning fossil fuel to make electricity so our houses are comfortable is adding unnecessary Carbon Dioxide to the atmosphere. This gas and other gases trap heat in our atmosphere by the greenhouse effect and cause the earth to become warmer. The consequences of this could be catastrophic to our children’s lives. The provision of energy saving systems in houses and home units will reduce these gasses.
The requirements of the Building Code of Australia (BCA)
The BCA requires that houses and units are designed so they will be efficient energy wise New South Wales has adopted a method of controlling energy use which is different from the other states and it also limits the use of water. The New South Wales system is the Basix Certificate.
Basix Certificate
Basix Certificates are required for every residential project. It includes three parts,
- limitations on water use,
- limitations on energy use in appliances and
- a thermal assessment which determines the amount of energy it takes to heat and cool a residence to comfortable temperatures.
Building Diagnosis Centre will provide the whole Basix Certificate. For this Certificate some commitments must be made by the developer or home owner to satisfy the requirements of the various parts of the Certificate.
Thermal Assessments
The thermal assessment part of it though, in most cases, can only be done by a person accredited to use certain software which does some very complex calculations and works out the amount of heat lost or gained in a residence. Building Diagnosis Centre are experts in this area. Consequently the Assessor can change or add construction that will reduce the energy required to provide comfortable temperatures all year with a limited amount of energy.
The old software, NatHers, has been superseded by better software and NatHers accreditation will cease soon. There are several Second Generation software packages, “AccuRate" being the best of them
Our Assessor
Our assessor who is also a chartered architect is accredited to provide a thermal assessment using AccuRate. He is a member of ABSA, the Association of Building Sustainability Assessors.
BCA REGULATIONS - PRIVATE ACCREDITED CERTIFYING AUTHORITY SERVICES
Building Diagnosis Centre’s accredited consultant with qualifications as a private accredited certifier acting in the capacity as the Principal Certifying Authority (PCA), provides construction certificate, complying development certificates, mandatory critical stage inspections for both residential and commercial properties, and interim and final occupation certificates.
Regarding construction certificates, we may require additional information outside Council DA consent conditions due to our Good Building Practice, Industry Standards, Building Code and relevant Australia NSW Standards called up by the latest version Building Code of Australia (BCA).
Our assessment and certification of our clients’ projects are to ensure that the building works comply with current legislation and the Building Codes. We can only assure this by submission of the correct information by the applicant of the Construction Certificate.
The following information and documentation in multiples are required in order for the construction certificate to be issued. Whilst the following is a general outline as to what Council is requesting in the DA conditions it is a part of the consent. It should be read in conjunction with the other conditions of consent.
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