Sap Calculations Croydon
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.
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.
Croydon SAP Calcs For Dwelling Change Of Use
- Reports for Part L Compliance
- SAP EPC
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Croydon SAP Calcs For Overglazed Extensions
- Carbon Emissions Reports
- Heat Loss Calculations
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Croydon SAP Calcs For New Builds
- Reports for Part L compliance
- SAP EPC
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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.
We also cover: Broad Green, Croydon, Sutton, Merton, Merton, Bromley, Wimbledon, Lambeth, Wandsworth, Lewisham
Want an answer to a question you might have about SAP calculations in Croydon? The following are the 10 most frequent questions.
Sap Calculations, What Are They
This is by far 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
The average budget range will be between £100 – £300, that is depending upon the difficulty and size of your property. If you also need an Energy Performance Certificate (EPC) at the end of it there will probably be an extra charge of about £50 to lodge an EPC on the epc register. For multiple dwellings of comparable designs, then discounts could well be offered.
What Is The Difference Between Sap and EPC
Before we explain the difference, this is what you will require 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 computations of pre defined data set of a properties design that’s put together to demonstrate the energy performance of a building. An EPC or Energy Performance Certificate is a summary report produced by the Sap calculations that 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 improve the rating of the property.
There are really two types of EPCs. First is a SAP EPC which is produced from building plans when all the elements of the building are known. This would normally be required by building control to demonstrate that the property complies with specific targets essential to the building regulations. Building control would also need to see the SAP calculations which illustrates in detail whether all the components going into your property comply with the building regulations.
The second variety of EPC is the typical one that will be necessary when you are selling, or renting out a property. This sort of EPC uses what’s called rdSAP, which stands for Reduced Data Standard Assessment Procedure, and is used where certain thermal values of, such as, the walls, roof, floors, etc, usually are not precisely known on an existing property. In this situation assumed thermal values are used based on the age of your property. This type of EPC would 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 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, after that call us for additional assistance.
What Are As Built SAP Calculations
These will be the finished set of SAP calculations created after the dwelling has actually been completed to hopefully demonstrate that it is compliant with Part L1A of the building regulations. Ahead of the building starting, it ought to have had some “Design Sap” calculations to demonstrate that the planned dwelling, in theory at least, would be compliant with Part L1A.
How To Do Sap Calculations
No, this is not something that you can do yourself. The calculations have to be done by an On Construction Domestic Energy Assessor or OCDEA, using approved Government software programs. The Assessor must be approved under one of several certification schemes and is also regularly audited to maintain their accreditation.
What Info 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
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 quite trendy to get large bi-folding doors, sky lights and large amounts of glazing on new extensions. But with the current building regulations the amount of glazing can be a maximum of 25% of the floor area of the new extension. So over compensations on the thermal elements in other places of the property will have to be made to show that the CO2 emissions coming from the existing house and the planned extension is not any worse when compared to the existing house and an extension whose glazing is within the permitted amount judged against Part L1B of the building regulations.
You will need SAP calculations to find solutions and demonstrate 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.}
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. Give us a call, if you are not certain if you need them.
Our Services
What You Can Expect From Us
Trusted & Experienced
Our Assessors are fully certified and accredited with years practical experience carrying Sap calculation in Croydon . We also cover the whole of the UK and can help on any job nationally.
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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