SAP CalculationsSAP Assessments & EPCs

Find out how Vision Energy can take care of all your compliance needs for your new Build Project

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ConversionSAP Assessments

Vision Energy can take care of your energy assessments for your conversion project, find out more today

Find out more about Conversion

ExtensionSAP Assessments

All Extensions with 25% or more glazing compared to the floor area require SAP & EPC's, find out more

Find out more about Extension

SAP Calculations | EPC's

Vision Energy will work with you on your conversion project from design stage all the way through to completion, from single dwellings to conversion developments with 100+ dwellings, Vision energy strive to ensure that all assessments are completed to achieve compliance as well as providing cost effective and feasible solutions to ensure the smooth delivery of your project.

Conversion SAP Calculations & EPC's

If any property is being converted to a residential dwelling or an existing residential dwelling is being split into multiple dwellings, SAP Calculations will be required to show compliance to Building Regulations Part L1b. SAP Calculations in accordance to Building Regulations Part L1b will assess a multitude of elements of the development from thermal upgrades to the wall/floor & roof partitions, glazing, main heating and much more.

All assessments come with

  • Dedicated energy assessor,
  • Free U-values for Wall, Floor & Roof elements
  • Fast Turnaround available (Please see FAST TURNAROUND ASSESSMENTS)
  • Commitment to achieve compliance without applying costly or solutions that will prolong the build proccess

Vision are more than happy to assist you on all aspects from planning to building control sign off, get in touch to talk to one of our technical team to ensure that your project achieves compliance to Building Regulations Part L1b

Building Regulations Part L1b

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Sustainability & Building Compliance

Vision Energy are a leading Sustainability & Energy consultancy working nationwide. We specialise in calculations & reports covering Building Regulations, Planning Permission and all other sustainability or energy needs within the construction sector. With a vast amount of knowledge and experience having worked on thousands of projects across the UK one of our engineers would be more than happy to assist you on your project. SAP Calculations | SBEM Calculations | Energy Statements | BREEAM Pre-Assessments | M&E Design | EPC's | Water Efficiency | Air Permeability

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What are Conversion SAP Calculations & EPC’s?

Building Regulations Part L1b requires all dwellings created from a material change of use/conversion to undergo SAP  (standard assessment procedure) calculations to measure the energy efficiency of the dwelling in order to conform to Regulations. 

Conversion SAP Calculations assess the proposed dwellings to ensure that all thermal elements comply with Building Regulations Part L1b,

What Elements are assessed during Conversion SAP Calculations?

Conversion SAP Calculations ensure that the proposed elements comply with Building Regulations Part L1b, below are the elements assessed,

  • Thermal efficiency of any new walls, floors & roof elements that are proposed

  • Thermal efficiency of existing walls, floors & roof elements and improvement measures required

  • Thermal efficiency of glazing & doors

  • Boiler efficiency

  • Secondary heating i.e. log burners, open fires

  • Renewable energy i.e. solar panels, Air/ground source heat pumps

What is the target a dwelling needs to meet?

Conversion SAP Calculations will assess a number of elements, from U-value of walls/floors/roof elements within the dwelling/s, U-value of glazing & Doors.

All targets for a conversion project can be found within Approved Document Part L1b (above), or alternatively, give one of our technical advisers a call. 

How does the overall process work throughout the design and build process?

Vision Energy recommend carrying out your SAP Calculations at a design stage, however if your dwelling/s is already complete don’t worry, we can still carry out your SAP Calculations at an ‘as-built’ stage, below outlines the step by step process Vision Energy will take to ensure compliance to Building Regulations Part L1a,

Initial Design Review – Vision will review the plans and information provided within architectural drawings or specifications

Design Stage Calculations – Design calculations will be carried out to review the compliance to all elements in Building Regulations

Design Review & Alterations – Were required, Vision will advise on any alterations that are required to the design of the dwelling/s to comply with Building Regulations Part L1a, ensuring that the design alterations are cost effective and feasible on site,

Design SAP Calculations & Predicted EPC – Vision will issue the design stage calculations and predicted EPC for submission to Building control/Local Authority

As-Built SAP Calculations Review – Once the construction of the dwelling/s is nearing completion, Vision Energy will review the construction details compared to the design SAP Calculations to ensure the dwelling/s have been built to the specification, If any alterations have been made, Vision will rerun the calculations and review compliance

As Built SAP Calculations & EPC – Once the review has been complete and confirmed, Vision Energy will issue and lodge the As-built SAP Calculations & EPC for submission to Building Control/ Local Authority