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Get startedFlat 1 is a semi-detached house in London (W3 9LN). It has a recorded floor area of 79 m² (around 850 sq ft), construction records dating it to 1900-1929 and council tax band D. At 79 m² this is the largest unit on EPC record across the building (52–79 m²). The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (69 versus a worst of 51). The latest certificate (February 2021) shows a C (score 69), just inside the C band.
One planning record on file: an extension approved in 2020. Past consents include an extension, meaningful when judging how the property has evolved. At 79 m² it's 21.5% larger than the typical home in the postcode (65 m² median across 33 EPCs). Its energy rating outperforms most of the postcode (better than 76% of similar EPCs).
Flat 1 has an approved side and rear extension on the planning record.
Extension: Side and rear of property
Single storey, part infill, rear/side extension
Flat 1 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£510,000
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
Flat 1 outperforms the street on epc rating by a wide margin.
EPC Rating
69 (C)
Street avg 62 (D)
Floor Area
79 m²
Street avg 63 m²
CO₂ Emissions
2.8 t/year
Rail-style transport is unusually close for this postcode.
Crime
13/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Denehurst Gardens — bus stop.

Daytime· 07:00 – 23:00
54.1dB

Median price across the last 5 sales in W3 9LN: £1,075,000 (2025–2023).
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Street avg 3.1 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
W3 9BY
Closest school
0.1 km
Twyford Church of England High School. 39 schools nearby.
Night-time· 23:00 – 07:00
44.8dB