SAP - New Build for Part L1A of the Building Regulations

So, what is SAP?

The Standard Assessment Procedure (SAP) is the UK Government's recommended method system for measuring the energy rating of residential dwellings. The first version was published in 1995, and was replaced by newer versions in 1998, 2001, 2005, 2009 and 2012.


What does it do?

A SAP calculates the typical annual energy costs for space and water heating, and, from 2005, lighting. It also calculates CO2 emissions and heat losses from the building fabric. The SAP runs from 1 to 100+, with dwellings that have SAP>100 being net exporters of energy.


Why is it needed?

SAP 2012 has been used as the basis for checking new dwellings for compliance with building regulations in the United Kingdom requiring the conservation of fuel and power since 6 April 2014 in England or 31 July 2014 in Wales.


A reduced data version of SAP, RDSAP, is used for existing dwellings. SAP or RDSAP are used to produce the energy report and Energy Performance Certificate in Home Information Packs (HIPs).


How we can help?

With our team of experienced assessors, we can make sure that this procedure is as simple for you as possible.


To do this, we break it down into 5 smaller, easy steps, as follows:


1. Review - After assigning you with your own personal assessor, we will review your plans and any available specifications


2. Design Assessment - Your assessor will model your proposed design using the SAP software, making sure that your build outline complies with the Building Regs


3. Recommendations - If your assessor finds more cost effective methods or should your outline not quite meet the necessary figures, they will provide a full recommendations report, potentially saving thousands in wasted time and materials


4. Revisions - Changes are often made throughout the building stage, either at customer request or due to on-site constraints. If you let your assessor know, they will makes these changes to the SAP model to make sure everything still complies


5. Final 'As Built' Assessment - Once your build is complete and you have had your air test, your assessor will complete one last SAP model to check everything still complies


Once these simple steps are complete, we will email all of the necessary documents, including your EPC, to you (and to your Building Control Officer if you want us to!) 

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