EPC guides
EPC Basics: EPC Guides for London
Understanding what an EPC is, how it works, and what to expect.
All EPC Basics guides
13 guides, written by your assessor. See every guide
- What EPC Rating Do I Need? Selling, Renting, Mortgages and GrantsThe EPC rating needed to sell, to let, to get a green mortgage, and for the Boiler Upgrade Scheme, Warm Homes: Local Grant, ECO4 and the Warm Home Discount, each checked against the rules on 30 October 2026.4 min
- EPC Running Costs by Band: What London Homes Rated B to G CostThe yearly and monthly running costs on recent London EPCs, band by band, for flats and houses, from 33,985 certificates on the GOV.UK register. What the figures include, and how to read your own.2 min
- Maisonette and Two-Floor Flat EPCs: What the Assessor Needs From YouA maisonette gets the same EPC as any flat. What the assessor records on both floors, what sits above and below you, the shared corridor or stairs, shared heating, and the paperwork that helps.4 min
- How to Find, Check and Download Your EPCFind any EPC in England, Wales or Northern Ireland on the free GOV.UK register by postcode, street or certificate number, check it is genuine and in date, save a copy, and what to do if it is missing, expired or wrong.4 min
- How Much Does an EPC Cost in London, and Who Pays?What sets the price of an EPC in London, what is included, how fast you can get one, and who pays when you sell or let: the seller, the landlord, never the tenant.3 min
- Do I Need an EPC? Every Situation AnsweredWhether you need an EPC when you sell (privately too), let a home, rent out a room, take a lodger, run an HMO or holiday let, remortgage, extend, convert or build, and the exemptions for listed buildings, small outbuildings and demolition.8 min
- Why Is My EPC Rating Different From My Neighbour's?Two near-identical London homes can score differently on an EPC. Mid-terrace vs end-terrace, insulation, evidence and the RdSAP 10 methodology change all play a part.8 min
- How to Prepare for Your EPC Assessment: A Simple ChecklistGet ready for your EPC assessment with this simple checklist. What the assessor needs access to, which paperwork can support the recorded evidence, and how long it takes.7 min
- EPC vs Floor Plan vs House Survey: Which Do You Need?EPC, floor plan or house survey? What each document does, who needs one when selling, letting or buying, what they cost, and which are legally required.8 min
- RdSAP 10: What Changed in 2025, and the August 2026 Conventions UpdateRdSAP 10 replaced RdSAP 9.94 in June 2025. A further set of conventions, v12.2, took effect on 6 August 2026. What changed, and why some ratings shifted.10 min
- How Long Does an EPC Last? Validity, Renewal and MortgagesAn EPC is valid for 10 years. When you can use an old one, when you need a new one, how to check expiry, and why some lenders now require a current EPC.5 min
- What Happens During an EPC Assessment: A Step-by-Step GuideWhat an EPC assessor records during a visit: walls, heating, windows, lighting. How long it takes, what to prepare, and common surprises, from a London DEA.6 min
- EPC Ratings Explained: Bands A–GWhat each EPC band means, from A to G: the SAP points behind every grade, the average rating, whether a D is good, and the difference between the current and potential rating.10 min
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