0800 046 7345 [email protected]

Sap Calculations Wimbledon

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.

Get QuoteCLICK TO CALL FREE: 0800 046 7345
Air tightness testing
Water calculations

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.

 

R

Wimbledon SAP Calcs For Dwelling Change Of Use

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

Wimbledon SAP Calcs For Overglazed Extensions

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

Wimbledon 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.

Questions Regarding Wimbledon Sap Calculations, find out if we have the answer here.

What Are Sap Calculations?

This is certainly quite possibly the most frequent query asked. Take a look at Andrea’s video explanation above, or read the full explanation here on the right.

How Much Do Sap Calculations Cost

This may vary considerably depending on the size and complexity of the dwelling, but a standard cost range will be between £120 – £300. There will probably be an additional cost of around £50 if an Energy Performance Certificate is required at the end of the construction. Special discounts would typically be available for a number of dwellings especially if they are of the identical form of building.

What’s The Difference Between Sap and EPC

Before we explain the difference, here is what you will need depending on your job.

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 efficiency of a building. An EPC or Energy Performance Certificate is a overview report created from the Sap calculations which produces a SAP score from 0 to 100. This score is shown on the Energy Performance Certificate as A the highest to G the lowest. It will also list suggestions which would increase the rating of your dwelling.

There are actually two types of EPCs. The first is a SAP EPC which is created from building plans where all of the components of the construction are known. This would normally be required by building control to demonstrate that the property meets specific targets required by the building regulations. Building control would must also see the SAP calculations which shows in greater detail whether all of the components going into the property conform to the building regulations.

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

If you are still perplexed, after that call us for further information.

What Are As Built SAP Calculations

These will be the finished set of SAP calculations produced once the dwelling has been completed to show that it is compliant with Part L1A of the building regulations. Prior to the project starting, it ought to have had some “Design Sap” calculations to demonstrate that the planned construction, in theory at least, will be compliant with Part L1A.

 

 

Can I Do The Sap Calculation Myself

Unfortunately this is not something you could do by yourself. The calculations have to be done by an On Construction Domestic Energy Assessor or OCDEA, using approved Government software. The Assessor must be approved under one of the certification schemes and is regularly audited to keep up their accreditation.

What Information is Required 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 need Sap calculations to demonstrate compliance with Part L1A (Conservation of fuel and power in new dwellings) of the building regulations.

 

Sap Calculations For Extensions

It’s now quite popular to get large bi-folding doors, sky lights and large quantities of glazing on new extensions. But under the existing building regulations the amount of glazing must be a maximum of 25% of the floor area of the new extension. So over compensations on the thermal elements in other parts of the property will have to be made to demonstrate that the CO2 emissions from the current house and 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 need SAP calculations to find solutions and demonstrate compliance.

 

Sap Calculations For Conversions

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

 

Will I Need to have 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 checklist 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 qualified and accredited with several years practical experience carrying Sap calculation in Wimbledon . We also cover the whole of the UK and can assist on any job nationwide.

Reliable & Fully Insured

You will be assigned a dedicated Assessor who is also covered by full professional indemnity insurance of up to £100,000 to ensure 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% satisfaction and look forward to working with you.

0800-046-7345

Get A Quote, Or Call Us For Advice