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SAP Assessments and Part L Compliance Across London

SAP Calculations London

SAP Calculations for developers, builders and self-builders across London and the South East, managed by our team from quote to sign-off. We've quoted on 220+ projects in the London area since 2021.

Design-Stage SAP Assess compliance before construction begins
As-Built SAP & EPC Final assessments for completion and lodgement
Part L Support Practical guidance where improvements are required
London Coverage Homeowners, builders, architects and developers

Trusted across London and the South East and the UK

  • 3,200+projects quoted through our portal since 2021
  • 5,000+individual services requested by developers and builders
  • 110+UK postcode areas covered, London and the South East included
  • 15+years of construction industry experience

Also most requested in London: Private Building Control10 Year Structural WarrantyExtract Ventilation TestingAir Tightness Testing

SAP Calculations in London

Working in London and the South East

From Croydon to Kingston upon Thames, we provide SAP Calculations on sites throughout London and the South East (E, EC, N, NW, SE, SW, W and WC, plus outer London), for everyone from self-builders to multi-plot developers. SAP Calculations is one of the services London clients book with us most often.

London boroughs often set energy and carbon targets through the London Plan and local policy, so planning conditions on London schemes frequently ask for energy information alongside your Part L calculations. We can line those up at the same time.

  • Croydon
  • Barnet
  • Ealing
  • Bromley
  • Enfield
  • Harrow
  • Hounslow
  • Kingston upon Thames

SAP Calculations in London: common questions

Do you provide SAP Calculations in London?

Yes. London is one of the areas we work in most, and our team looks after your SAP Calculations from first quote through to sign-off.

Which areas around London do you cover?

The whole London area, postcodes E, EC, N, NW, SE, SW, W and WC, plus outer London, and the surrounding towns such as Croydon, Barnet, Ealing, Bromley, Enfield, Harrow, Hounslow and Kingston upon Thames. Further afield is fine too: we cover the UK.

Can you combine SAP Calculations with other services on my London project?

Yes, and it usually saves time and money. London developers often bundle SAP Calculations with Building Control, energy calculations and testing under one quote.

Which councils around London do you work with?

We work on sites across the 32 London boroughs, the City of London Corporation and nearby Hertfordshire, Essex, Kent and Surrey councils, and coordinate with whichever planning and Building Control body covers your site.

Have you worked on projects near London?

Yes. Recent projects in the area include Fleetwood close, Holtwhites Hill, Fernhead Road. You can see more in our projects portfolio.

What do you need from me to quote for SAP Calculations in London?

The site address and postcode, your drawings (plans, elevations and sections) and anything you already have from planning or Building Control. We'll confirm a fixed price and timescale for your London project.

Building in London

The London development market

London projects are dominated by flats: conversions of houses and commercial buildings, infill and backland sites, and mid-rise blocks. Tight sites, party walls, overheating risk and London Plan energy policies all shape what is needed, and boroughs set their own planning conditions, so the paperwork varies from one borough to the next.

Typical London projects we support

  • House-to-flat conversions
  • Commercial-to-residential conversions above shops
  • Backland and infill sites
  • Mid-rise apartment blocks and roof extensions

Councils we work across

We handle SAP Calculations for sites in the 32 London boroughs, the City of London Corporation and nearby Hertfordshire, Essex, Kent and Surrey councils, and coordinate with whichever planning and Building Control body covers your site.

How SAP Calculations works, what we need from you and full FAQs

SAP Assessors Covering London and Greater London

We regularly support projects throughout Westminster, Camden, Islington, Kensington, Chelsea, Southwark, Lambeth, Greenwich, Hackney, Wandsworth, Hammersmith and Canary Wharf, as well as wider Greater London locations including Croydon, Bromley, Barnet, Ealing, Enfield, Harrow and Richmond.

Request Your Free SAP Calculations Quote

Complete the form below with the Leeds project address and description of works. Upload the latest drawings, construction specification and available heating and ventilation information so our team can review the requirement and provide an appropriate quotation.






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