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Get startedFlat 4 is an end-of-terrace house in London (W3 8HA). It has a recorded floor area of 29 m² (around 312 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (August 2020) shows an E (score 48), well below the UK norm with real room to improve. When first surveyed in December 2016 the rating was G, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Average and window efficiency went from Very Poor to Good; while hot-water efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 81), a 3-band jump. Main heating runs on electricity. At 29 m² this is the 2nd smallest of 4 units on EPC record in the building, where floor areas span 26–37 m². The building's EPC ratings span F to C across 4 units on file.
At 29 m² it sits well below the postcode median (92 m² across 24 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs). One historical planning record sits against the property in 2025.
Recommended upgrades on file would lift this property by multiple EPC bands.
A recent planning application at Flat 4 was refused — worth checking the council file.
Continued use first and second floor of property as four self-contained residential units, flats 1 and 2 on the first floor, flats 3 and 4 on the second floor (Lawful Development Certificate for an Existing Use)
Flat 4 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£222,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
EPC Rating for Flat 4 lags the street by a wide margin.
EPC Rating
48 (E)
Street avg 63 (D)
Floor Area
29 m²
Street avg 57 m²
CO₂ Emissions
2.3 t/year
Street avg 2.6 t/year
Rail-style transport is unusually close for this postcode.
Crime
13/mo
Rising year-on-year across the wider district.
Nearest stop
0.3 km
Mill Hill Road — bus stop.

Daytime· 07:00 – 23:00
54.9dB

Changes detected from historical EPC data
Hot water system changed
Single glazing replaced with double or better glazing
Roof insulation improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in W3 8HA: £510,000 (2024–2022).
An AI-written breakdown of everything that matters
Detailed EPC data
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Full planning history
Every application and decision on record
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Habitable Rooms
1 rooms
Street avg 3 rooms
W3 8JQ
Closest school
0.2 km
Acton Gardens Primary School. 45 schools nearby.
Night-time· 23:00 – 07:00
44.5dB