SAP Calculations - Extensions

SAP Calculations For Extensions

Building regulations state that the proposed glazed area within your extension should not exceed 25% of the proposed extension floor area. However, most extension designs these days have significantly more glazing than this.

If you are extending your home and want to have more glazing than the 25% rule allows, we can produce a specific type of SAP calculation that enables you to do this.

SAP Calculations - Extensions

Our SAP Calculation process:

  • Review your plans, specification and make any recommendations
  • Liaise directly with your Building Control Officer (if required)
  • Complete the SAP Calculations
  • Supply the SAP Reports to meet your deadlines.

Why Use C80 Solutions for the SAP Calculations on your extension?

  • We have performed SAP Calculations on over 5000 extensions to date – with a 100% pass rate
  • We will always find a solution that allows you to keep all the glazing in your extension
  • We always aim to reduce your build costs by providing guidance on the most cost effective way to achieve a pass
  • We never charge for SAP calculations that fail and will always provide guidance to achieve a pass
  • We are able to provide a ’24 hour turnaround’ service on urgent projects (subject to a fee)
  • We also provide SAP Calculations for New Builds & Conversions

Get in touch

Email us ( your project plans or call us on 0113 258 8445 and we will provide a same day quote.

Want to find out how we can save you time and money?

Complete our enquiry form for a quote.

Contact Us

We can help you...

Save money

We will reduce your build costs by adopting the 'Fabric First' philosophy to remove the need for expensive renewable technologies. We carry out a complimentary specification review on every single project to see where we can reduce your costs.

Reduce risk

All our compliance services come with a 100% pass guarantee. We will never charge you for assessments that don't pass. We will always provide free guidance to achieve a pass in the cheapest way possible.

Reduce red tape

We operate a common sense approach to building compliance. Our team comes from a background in volume house building, Architecture and Engineering. We understand all the time, cost and hassle constraints involved in construction.

Save time

We can provide a 24 hour turnaround on services when required. Also, we will produce your new build EPCs on the same day as receiving the air test result.

"It was great to have C80 in our design team meeting and it meant they saved us build costs through their extensive expertise of construction and SAP."


Contact us about SAP Calculations

Reduce your risk, save time and money. Get in touch to see how we can make your next project easier.

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    If you have plans for your project upload them here. Suggested formats: .dwg, .pdf, .doc, .jpg etc.

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