Fast Sap Calculations Islington

Need to have Sap calculations for either Part L1A, or Part L1B, we’re here to help. Contact us for a quote for your project.

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Need to have an answer to a question you might have about SAP calculations in Islington? The following are the 10 most typical questions.

What Exactly Are Sap Calculations

This is certainly quite possibly the most common question asked. Check out Andrea’s video explanation above, or read the full explanation here on the right.

How Much Do Sap Calculations Cost

This can can vary considerably depending on the measurements and complication of the dwelling, but a standard price range would be between £120 – £300. There may be a further charge of around £50 if an EPC is called for at the end of the build. Discounts would typically be available for multiple properties especially when they are of the identical style of structure.

What Is The Difference Between Sap and EPC

Before we explain the difference, this is what you will need depending on your project.

For a new build property you’ll need – SAP calculations and an EPC.

For dwelling change of use or conversion you’ll need – Sap Calculations and an EPC.

For overglazing on an existing dwelling you’ll – Sap calculations only.

SAP or Standard Assessment Procedure are the computations of pre defined data set of a properties design that’s put together to display the energy efficiency of a dwelling. An EPC or Energy Performance Certificate is a summary report produced by the Sap calculations which produces a SAP rating from 0 to 100. This rating is expressed on the EPC as A the highest to G the lowest. It will also list suggestions that would enhance the rating of your dwelling.

There are really two kinds of EPCs. First is a SAP EPC which is created from building plans when all the elements of the building are known. This will normally be required by building control to demonstrate that the property complies with specified targets essential to the building regulations. Building control would also need to see the SAP calculations which shows in detail whether all the components going into your property conform to the building regulations.

The 2nd type of EPC is the typical one that will be needed when you are selling, or renting a property. This particular EPC uses what’s called rdSAP, which stands for Reduced Data Standard Assessment Procedure, and is used where specified thermal values of, such as, the walls, roof, floors, etc, are not precisely known on an established property. In this situation assumed thermal values are used according to the age of your property. This kind of EPC would be no use to demonstrate compliance with any building regulations. Sometimes building control would simply ask you for the EPC, but what they would really require are the Sap calculations (which is the information behind the EPC) and the SAP EPC (which is a summary report from the Sap calculations).

If you are still perplexed, then simply call us for additional information.

What Are As Built SAP Calculations

These are the final set of SAP calculations created when the building has actually been completed to confirm that it is compliant with Part L1A of the building regulations. Prior to the construction starting, it ought to have had some “Design Sap” calculations to demonstrate that the planned building, in theory at least, would be compliant with Part L1A.

 

 

Can I Do The Sap Calculation Myself

No, this is not something you could do by yourself. The calculations need to be carried out by an On Construction Domestic Energy Assessor or OCDEA, by using approved Government program. The Assessor must be approved under one of the accreditation schemes and is also regularly audited to keep their accreditation.

What Information is Needed For Sap Calculations

Your Assessor would advise you of exactly what is needed. Typically you would need the following:

  • Floor Plans to include sections and elevations
  • Orientation of the property
  • Construction specification of walls, roof and floors
  • Specification for all doors and windows
  • Primary and secondary heating
  • Provision for providing  hot water
  • Any renewable technology (if any)

 

Sap Calculations For New Build

All new property need Sap calculations to prove compliance with Part L1A (Conservation of fuel and power in new dwellings) of the building regs.

 

Sap Calculations For Extensions

It’s now modern to get large bi-folding doors, sky lights and large quantities of glazing on new extensions. But under the current building regulations the quantity of glazing must be no more than 25percent of the floor area of the new extension. So over compensations in the thermal elements in other places of the property will need to be made to show that the CO2 emissions from the current house along with the planned extension is not any worse when compared to the existing house and an extension where the glazing is within the permitted amount judged against Part L1B of the building regulations.

You need SAP calculations to find solutions and illustrate compliance.

 

Sap Calculations For Conversions

If you are altering the use of a building, you will need Sap calculations. {The new dwelling will have to comply with Part L1B of the building regulations.}

 

Will I Need Sap Calculations

You will need Sap calculations for any of the following: 

  • Building a new property
  • Changing the use of an existing property (e.g, a barn conversion, commercial building to residential)
  • Extensions with more than 25% glazing
  • Opening up the main house to an existing conservatory
  • Extension where the extension is more than 50% of the original property wall area
  • Garage conversions
  • If requested by building control

This is not an exhaustive checklist. Phone us, if you are uncertain if you require them.

 

What Exactly Are Sap Calculations

If you are reading this, you have probably recently been asked by somebody, typically your building control representative, to supply sap calculations for your building project. But you probably haven’t been told what sap calculation actually are and why you need them.

You can either click the video on this page, where Andreas will shed some light on this, or continue reading.

SAP is short for Standard Assessment Procedure and is the UK government’s procedure for calculating the energy performance of properties. The calculations are required to demonstrate your building conforms with specified energy targets laid down in the building regs.

As a quick summary, that’s essentially it.

A few of the reasons you may well be asked for sap computations
1. For all newly built properties
2. For a dwelling change of use, for example changing a commercial building to flats
3. For extensions that have more than 25% glazing

The two main areas which the sap calculations will be looking at is that the carbon emissions from the dwelling are within set tolerances and that certain elements of the property, such as the walls, windows , floors and roof comply with certain thermal energy targets.

A good set of construction drawings will need to be given to the Assessor, because all the calculations are done from the building drawings ,so there is no need to visit the property. Your Assessor will advise you of precisely what is needed. An EPC or Energy Performance Certificate is usually produced after the computations are completed.

If your sap calculations show that your property is not compliant, then Assessor will give you suggestions about upgrades that can be made to make it so. It’s essential to liaise with your Assessor as early on in your project as possible because when the building is completed any non-compliances could be quite costly to rectify.

Should you require advice on a project you could have in or around Islington, or simply require a quotation, give us a call or fill in our get a quote form.

 

Our Services

R

SAP For Dwelling Change Of Use

  • Reports for Part L1B Compliance
  • SAP EPC
  • Free Advice
R

SAP For Overglazed Extensions

  • Carbon Emissions Reports
  • Heat Loss Calculations
  • Free Advice
R

SAP For New Builds

  • Reports for Part L1A compliance
  • SAP EPC
  • Free Advice

What You Can Expect From Us

Trusted & Experienced

Our Assessors are fully certified and accredited with several years practical experience carrying Sap calculation in Islington . We also cover the whole of the UK and can assist on any project nationwide.

Reliable & Fully Insured

You will be assigned a dedicated Assessor who is also covered by full professional indemnity insurance up to £100,000 and that means you know you’re in save hands.

Prompt Service

We’ll respond to your enquiry within 24 hours. We’ll also help you to deliver your project within your timescale.

Satisfaction Guaranteed

We seek to provide 100% customer satisfaction and look forward to working with you.

0800-046-7345

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