BUILDING DIAGNOSIS CENTRE
are multi disciplined experts, give advice to strata and commercial property owners on building corrosion from the northern beaches peninsula to Sydney Harbour and through to the eastern suburbs’ beaches.

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


Large windows require shading as per thermal assessment requirements
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


Our certifications take our consultants to Sydney's highest buildingsBuilding 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.

 


ITEMS.

MAIN

COPIES

01.

Provide a copy of the Council stamped approved architectural plans and a copy of the development consent, which must be signed. These documents are required in order to assess any further plans submitted for approval.

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02.

A Construction Certificate Application form filled out with the Lot & DP (deposited plan) of the land, with ALL owners of the dwelling shown as giving consent, and the original returned to our office. If the dwelling is a unit under strata title or a lot in community title, then in addition to the owner's signature the common seal of the body corporate must be stamped on this form over the signature of the owner and signed by the chairman or secretary of the body corporate or the appointed managing agent.

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03 .

Provide the registered Lot and DP (deposited plan) details for the property. This information must be included on any application form submitted.

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04.

Provide details of the Principal Contractor for the project. This person/company will be responsible for the construction of the works as outlined in the approval. Please provide their mailing address, email, license number, phone and fax. If you are undertaking the project as an Owner Builder please provide these details for our records.

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ITEMS.

ARCHITECTURAL

COPIES

05.

Detailed Construction Certificate Architectural Application plans. The Council development approved plans may have to be varied in order to demonstrate compliance with the Building Code of Australia (BCA). The submission of Council approved plans may also require them to be amended if directed to in Council's development consent conditions. Please refer to your conditions of consent.

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06.

The architectural plans are to have the "commitments in the BASIX" certificate on the front sheet or marked up on the appropriate area. All commitments must be shown and marked clearly for assessment by our office and for checking through the construction of the building. Your builder should also be given a copy of the BASIX certificate in order to avoid mistakes in construction of the dwelling.

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07.

Provide details of the external finishes.

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ITEMS.

BUILDING CODE COMPLIANCE

COPIES

08.

The plans are to demonstrate and comply with the BCA requirements for height and orientation of balustrades. The height of balustrades are to be measured at 1 m and have no openings greater than 125mm. Balustrades are required to have structural elements which will resist the actions as assessed under AS1 170.

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09.

The applicant/owner is to submit copies of general building housing specifications for the project that clearly reference all clauses and parts of the Building Code of Australia (BCA) with Australian Standards (AS) required for the project. The BCA reference and Australian Standards MUST be up to date with the latest editions.

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10.

Any glass balustrades to Australian Standards AS1288 incorporated in the dwelling are to be fitted with a top rail as per the standard. Balustrades are to be structurally designed to incorporate design elements of AS1 170. The height shall be 1 m high and no openings greater than 125mm.

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11.

Residential buildings are required to be provided with a smoke alarm to AS 3786 and nominated on the plans as per the BCA

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12.

requirements. This location of the smoke alarm shall be positioned on each floor, at intermediate stair levels, and outside bedrooms.

 

13.

If the client intends to use wire balustrading then the details must be provided with the CC application. We note that it is difficult to meet the new BCA for wire balustrades.

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ITEMS.

STRUCTURAL ENGINEERING

COPIES

14.

Provide structural engineering plans endorsed with a signature of a practicing engineer who is on the NPER register, ACSE or accredited engineer. The engineering plans shall incorporate reference to the Building Code of Australia and the relevant Australian Standards. The engineering plans shall incorporate the design wind rating for the area.

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15.

Additional requirements for the engineering plans are to include details for the frame tie down points and bracing details. Details of the fixing devices are to be specified. Wind speed should be nominated on the plans for reference.

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16.

The engineer is to provide a Design Certificate stating that the engineering plans have been designed in accordance with the BCA and the Australian Standards.

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17.

The engineer is to provide a letter of structural adequacy that the existing structure to be retained or built on is capable of supporting the new loads imposed by the new approved works.

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ITEMS.

HYDRAULIC ENGINEERING

COPIES

18.

The owner is to provide existing buildings' storm water connection details, to demonstrate that the proposed extension's and/or addition's downpipes are capable of connecting to Council's piped system or street gutter.

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ITEMS.

ENERGY EFFICIENCY

COPIES

19.

The following commitments in BASIX certificate need to be shown on the architectural plans: Water Commitments, Thermal Comfort Commitments, Hot Water, Cooling System, Heating System, Ventilation, Artificial Lighting, Natural Lighting, Swimming Pool and Other. As the certifying authority and/or the appointed principal certifying authority for the project we require documentary evidence that the areas in the BASIX certificate are shown on the endorsed plans have either been installed, constructed and/or incorporated into the construction. The owner builder or the contracted builder will be responsible for providing this documentary evidence if required at the completion of the project.

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ITEMS.

GENERAL

COPIES

20.

The owner is to provide an environmental management plan. This shall including silt fence locations, stormwater runoff and catchment ponds, tree protection, and an all weather construction access is to be provided and shown on plans.

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21.

The owner is to pay Long Service Levy on the cost of the construction works to the Long Service Payments Corporation. Your local Council may accept this payment on behalf of the Long Service Payments Corporation. Alternatively you can download a form from the Long Service Payment Corporation's website, get the certifying authority to sign the form, and then send the payment via mail to the Long Service Payment Corporation.

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22.

The owner is to apply to Sydney Water to get the plans stamped. The stamping of the plans can also be done through the Quick Check plumbing outlets or by phoning Sydney Water for the nearest outlet or authorised agent.

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23.

Under the Home Building Act 1989, domestic building works/contracts entered into for works over $12,000 by licensed builders are required to be warranted by Home Warranty. Home owners wishing to undertake the works themselves will be required to provide a copy of their owner builder permit. See the Department of Fair Trading in order to organise an application for an owner builder permit.

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24.

Evidence of the infrastructure payment repair

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ITEMS.

ITEMS TO BE SATISFIED DURING CONSTRUCTION

COPIES

25.

Compliance with the conditions of consent

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26.

Maintain silt barriers and road pedestrian signage

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27.

Construction as per BASIX cert

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28.

Mandatory and structural inspections

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ITEMS.

ITEMS TO BE SATISFIED PRIOR TO ISSUE OF OCCUPATION CERTIFICATE

COPIES

29.

Final inspection by PCA + OC application must be lodged with our office.

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30.

Certification - structural certification, wet area, glazing shower, windows, smoke detection, stormwater, BASIX compliance

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