1930s semis and terraces
- Cavity wall fill, where the cavity is suitable and unfilled
- Loft insulation topped up to current depth
- Boiler age and whether controls are programmable and zoned
- Original single-glazed windows still in the bay
EPC North West London
Domestic Energy Performance Certificates across Brent, Harrow, Hendon, Hampstead and Wembley — interwar semis, purpose-built blocks, converted houses and regeneration new build, assessed by an Elmhurst Energy accredited assessor.
The local stock
Four building types in one corner of London
North West London has an unusually varied mix, and each type behaves differently on the certificate. The 1930s semi dominates the middle ground — Hendon, Kenton, Colindale, Queensbury, Kingsbury and much of Harrow — and it is the easiest of the four to improve. Cavity walls, a pitched loft with a hatch, and a gas boiler mean cavity fill, loft top-ups and modern controls are all genuinely available measures.
Alongside it sit the interwar purpose-built blocks that give Golders Green, Hendon Central, Swiss Cottage and Wembley their distinctive frontages. Well built but barely insulated, often still with original metal-framed single glazing and a communal boiler, they tend to have their ceiling set by the block rather than by the flat.
Hampstead, Belsize Park and West Hampstead contribute large Victorian and Edwardian houses divided into flats, much of it in conservation areas or listed, with solid walls and limited scope for external change. And at Wembley Park and Colindale, regeneration has added thousands of new apartments that typically rate in band B or C.
Letting: a property must reach band E or better under MEES, with fines up to £5,000, and a valid EPC is a precondition for serving a Section 21 notice. Older purpose-built flats with electric heating are the ones worth checking first.
Areas we cover
- Brent — Wembley, Willesden, Kilburn, Queens Park
- Camden north — Hampstead, Belsize Park, West Hampstead
- Barnet west — Hendon, Golders Green, Colindale
- Harrow — Wealdstone, Kenton, Stanmore, Edgware
- Wembley Park and the surrounding regeneration blocks
Also serving North London and West London.
By property type
What moves the rating where you are
Flats in blocks and conversions
- Communal boiler or heat network details — worth confirming with the managing agent
- Electric storage heating, which weighs heavily on older blocks
- Position in the block: sheltered mid-floor flats lose less heat
- Any block-wide window or roof works done through the service charge
Letting the flat? Add an EICR or a gas safety certificate to the same booking.
More detail: the full domestic EPC service sets out what is surveyed and what you receive. Selling too? Add a measured floor plan. Every area is listed on the London EPC hub.
Common questions
North West London EPC questions, answered
How much does an EPC cost in North West London?
It depends on the size and location of the property — a one-bedroom flat in Wembley Park and a detached house in Hampstead are very different visits. Send the postcode and bedroom count by WhatsApp or the quote form and we'll reply with a fixed quote.
Why do 1930s purpose-built blocks in Hendon and Golders Green rate the way they do?
Interwar blocks were built solidly but with little insulation, and many still have their original single-glazed metal windows and a communal boiler the flat owner cannot alter. Individual flats are usually sheltered on several sides, which helps, but the envelope and the heating system tend to set the ceiling on the rating.
Are new flats around Wembley Park and Colindale better rated?
As a rule, yes. Recent regeneration blocks are built with insulated envelopes, high-performance glazing and often a shared heat network, and typically land in band B or C. They still need an assessment before being sold or let — the rating has to be lodged, not assumed.
What about a flat in a large converted house in Hampstead or West Hampstead?
These are assessed as individual dwellings. The key variables are which floor the flat is on, whether it owns any roof area, and whether the original solid walls have had any internal insulation. Conservation-area and listed status often rules out external work, so the practical improvements are loft insulation, secondary glazing and heating controls.