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Sap Calculations Barnet

Do you need Sap calculations for Part L of the building regulation? Then we are here to help. Contact us for a quote for your project.

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What Exactly Are Sap Calculations?

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

That’s pretty much it in a simple summary.

 

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Barnet SAP Calcs For Dwelling Change Of Use

  • Reports for Part L Compliance
  • SAP EPC
  • Free Advice
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Barnet SAP Calcs For Overglazed Extensions

  • Carbon Emissions Reports
  • Heat Loss Calculations
  • Free Advice
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Barnet SAP Calcs For New Builds

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

What does SAP mean?

Have building control, or even your architect asked you to get sap calculations?

Why will you need them and exactly what are sap calculations anyhow? Then read on.

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

 

When Are SAP Calculations Needed?

Sap calculations are usually required for 3 main reasons.

1. For all new properties.
2. For a dwelling change of use, for example altering a commercial building to residential flats.
3. For overglazed extensions.

The two main areas that 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 usually there is no need to visit the property.

Your Assessor will advise you of precisely what is needed. When the calculations are completed, an Energy Performance Certificate or EPC can also be produced.

If your sap calculations show that your property is not compliant, then our Assessor will give you advice on upgrades that can be made to make it so.

It could be costly if you realise at a late stage in the construction that the building is not compliant. So it is wise to liaise with the Assessor as early on during the project as possible.

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

Rather than trawl through a entire website to find the explanations you’re looking for, we have offered explanations to the ten most usual queries asked about SAP in Barnet.

Sap Calculations, Just What Are They?

This really is probably the most common query asked. Check out Andrea’s video explanation above, or read the full explanation here on the right.

How Much Do Sap Calculations Cost

We will be pleased to offer discount rates, especially for multiple dwellings that are of the same or very similar design. But typically for a single property the charge will be in the area of £120 – £300. By supplying the plans, it will be possible to get yourself a fixed quote.

What’s The Difference Between Sap and EPC

Before we explain the difference, here is what you will require 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 calculations of pre defined data set of a buildings design that’s put together to display the energy performance of a dwelling. EPC stands for Energy Performance Certificate and it’s a summary statement from the SAP calculations in an straightforward document, that can also be used to market or rent a property.

There are really 2 kinds of EPCs. The first is a SAP EPC that is created from building plans when all of the elements of the construction are known. This will normally be needed by building control to show that the property complies with specified targets essential to the building regulations. Building control would also have to see the SAP calculations which shows in detail whether all of the components going into your property comply with the building regulations.

The second type of EPC is the standard one that would be required for anybody who is selling, or renting a property. This type of EPC uses what’s called rdSAP, which stands for Reduced Data Standard Assessment Procedure, and is used where certain thermal values of, for instance, the walls, roof, floors, etc, usually are not precisely known on an existing property. In this case assumed thermal values are used depending on the age of your property. This particular EPC will be no use to show compliance with any building regulations. Sometimes building control would simply ask you for the EPC, however what they would really require are the Sap calculations (which is the data behind the EPC) and the SAP EPC (which is actually summary report from the Sap calculations).

Still perplexed, then call us to get more assistance.

What Are As Built SAP Calculations

These will be the final set of SAP calculations generated after the dwelling has actually been completed to hopefully demonstrate that it is compliant with Part L1A of the building regulations. Prior to the construction starting, it ought to have had a set of “Design Sap” calculations to show that the planned dwelling, in theory at least, will be compliant with Part L1A.

 

 

Can I Do The Sap Calculation Myself

No, this is not something that can be done by yourself. Sap calculations must be carried out by an On Construction Domestic Energy Assessor or OCDEA, using approved Government software. The Assessor has to be approved under one of the certification schemes and is regularly audited to maintain 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

Every new property require Sap calculations to prove compliance with Part L1A (Conservation of fuel and power in new dwellings) of the building regulations.

 

Sap Calculations For Extensions

It’s now quite fashionable to get large bi-folding doors, sky lights and large quantities of glazing on new extensions. However with the latest building regulations the quantity of glazing can be a maximum of 25percent of the floor area of the new extension. Therefore over compensations in the thermal elements in other areas of the property will have to be made to show the CO2 emissions from the existing house along with the planned extension is not any worse than the existing house and an extension where the glazing is within the allowed amount judged against Part L1B of the building regulations.

You should have SAP calculations to find solutions and illustrate compliance.

 

Sap Calculations For Conversions

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

 

Do 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 list is not exhaustive. Phone us, if you are not certain if you require them.

 

Our Services

What You Can Expect From Us

Trusted & Experienced

Our Assessors are fully certified and accredited with many years experience carrying Sap calculation in Barnet . We also cover the whole of the UK and can help on any project nationally.

Reliable & Fully Insured

You will be allocated a dedicated Assessor who is also covered by full professional indemnity insurance of up to £100,000 so that 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.

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