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Get startedFlat 3 is a two-bedroom semi-detached house in London (W3 9LN). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1900-1929 and council tax band D. At 67 m² this is the largest unit on EPC record across the building (56–67 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (50 versus a best of 69). The latest certificate (October 2019) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it D (August 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Poor. The recommended improvements would lift it to C (score 77), a 2-band jump.
It lags the bulk of the postcode on energy efficiency (less efficient than 88% of similar EPCs). Today's modelled estimate of £521,000 is 15.8% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£624/sq ft) was about 95.4% above the typical sold price in the postcode. Most recent transfer: April 2024 at £450,000.
Recommended upgrades on file would lift this property by multiple EPC bands.
Flat 3 valuation sits well clear of the typical sold price in this postcode.
£521,000
Modelled from EPC, postcode comparables.
£450,000
Recorded with HM Land Registry.
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Detailed AI analysis
Flat 3 is notably below the street on years held.
Price per m²
£6,716
Street avg £5,174
Floor Area
67 m²
Street avg 63 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
13/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Denehurst Gardens — bus stop.

Daytime· 07:00 – 23:00
54.1dB

4 April 2024Most recent
£450,000
Median price across the last 5 sales in W3 9LN: £1,075,000 (2025–2023).
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Detailed EPC data
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CO₂ Emissions
4.4 t/year
Street avg 3.1 t/year
W3 9BY
Closest school
0.1 km
Twyford Church of England High School. 39 schools nearby.
Night-time· 23:00 – 07:00
44.8dB