New Build SAP Calculations and EPCs
All new build properties require a Part L document to be compiled as part of the process to meet building regulations. A design stage SAP calculation is required to be submitted to Building Control before any work commences on site. An on construction SAP calculation is required within 30 days of completion of the building. This must be done by a qualified assessor and is required within 30 days of completion of the building along with an on construction EPC.
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Frequently Asked Questions...
What is Part L?
Part L covers the energy efficiency requirements of the building regulations:
- Part L1A (New Dwellings)
- Part L1B (Existing Refurbishment & Extensions)
- Part L2A (Non-Domestic New Buildings)
- Part L2B (Non-Domestic Refurbishment & Extensions)
What is the 'Design Stage' SAP Calculation?
The energy assessor will complete the compliance assessment via plans and specifications developed by the architect or construction developer.
Should compliance with Building Regulations not be achieved initially, the energy assessor will give advice on what can be improved to ensure compliance is achieved in the most cost-effective manner.
When this process is completed, the energy assessor will issue a series of reports which can be passed on to building control and construction can then begin.
What is the 'On Construction' SAP calculation?
Once the construction of the building is complete, a second assessment will be undertaken by the energy assessor to ensure any deviations from the ‘design stage’ calculation are modelled and to check compliance with regulations has been achieved.
What will the assessment involve?
The energy assessor does not need to visit the property and all information is gathered via correspondence. The energy assessor will usually ask for confirmation of items such as the actual boiler installed, air pressure test score and any other changes that may have occurred during the build process. Following this, the energy assessor will be able to complete the EPC for the building. The energy assessor will feed all data into the assessment software to produce the EPC.