Part O and TM59 Overheating Assessments
Overheating Assessment London
One point of contact for Overheating Assessment in London: send your drawings and we'll quote, coordinate and see it through to completion. We've quoted on 220+ projects in the London area since 2021.
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 WarrantySAP CalculationsExtract Ventilation Testing
Overheating Assessment in London
Working in London and the South East
Our Overheating Assessment work in London covers the city and nearby towns including Croydon, Barnet, Ealing, Bromley, Enfield, Harrow, Hounslow and Kingston upon Thames, across postcode areas E, EC, N, NW, SE, SW, W and WC, plus outer London. Clients in London regularly add Overheating Assessment to their Building Control and warranty bookings.
Parts of London are classed as "high risk" locations under Approved Document O, which means tighter glazing limits under the simplified method. Many schemes here are better served by TM59 dynamic modelling, and we'll tell you which applies to your postcode.
- Croydon
- Barnet
- Ealing
- Bromley
- Enfield
- Harrow
- Hounslow
- Kingston upon Thames
Overheating Assessment in London: common questions
Do you provide Overheating Assessment in London?
We do. Send us the London site address and your drawings and we'll come back with a fixed price for Overheating Assessment, handled by our team from start to finish.
Which areas around London do you cover?
We cover Croydon, Barnet, Ealing, Bromley, Enfield, Harrow, Hounslow and Kingston upon Thames as well as London itself (E, EC, N, NW, SE, SW, W and WC, plus outer London), and take on projects anywhere in the UK.
Can you combine Overheating Assessment with other services on my London project?
Absolutely. Bundling Overheating Assessment with the other reports and tests your London site needs means one quote, one contact and a bundle discount.
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 Holtwhites Hill, Fleetwood close, Parkview Hub. You can see more in our projects portfolio.
What do you need from me to quote for Overheating Assessment 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 Overheating Assessment 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 Overheating Assessment works, what we need from you and full FAQs
Overheating Assessments Across London and Greater London
We support projects throughout Central London, Westminster, Kensington, Chelsea, Camden, Islington, Southwark, Lambeth, Greenwich, Stratford, Wimbledon and Ealing.
Nearby coverage also includes Croydon, Bromley, Barnet, Enfield, Harrow, Hounslow, Romford and surrounding Greater London areas.
Local work
Recent projects near London
Request Your Free Overheating Assessment Quote
Complete the form below with the London project address, development type and current design stage. Upload the latest drawings, glazing information and ventilation strategy so our team can review the requirement and provide an appropriate quotation.
Not sure what else your project needs?Answer three questions and get the full checklist, then one quote for the lot.
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