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Get startedFlat 3 is a two-bedroom semi-detached house in London (SW4 9NS). It has a recorded floor area of 57 m² (around 614 sq ft) and construction records dating it to 1900-1929. At 57 m² this is the 3rd smallest of 7 units on EPC record in the building, where floor areas span 52–74 m². The building's EPC ratings span D to C, with this unit at the top. Other recorded features include a basement. The latest certificate (September 2025) shows a C (score 77), near the top of the C band. The rating has held steady at C across 2 certificates since September 2009. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Good. The recommended improvements would push it to B (score 82).
Sale prices here have outpaced London HPI: 2.9% per year against 0% for the wider region. Today's modelled estimate of £602,000 is 15.8% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£848/sq ft) was about 144.5% above the typical sold price in the postcode. At 57 m² it's 20.8% smaller than the typical home in the postcode (72 m² median across 59 EPCs). Most recent transfer: April 2021 at £520,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Flat 3's carbon output is low for the local stock.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£602,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.9% per year over 7 years.
£520,000
Growth on file: 2.9% per year over 7 years.
On co₂ emissions, Flat 3 stands well clear of the street.
Price per m²
£9,123
Street avg £6,011
Floor Area
57 m²
Street avg 75 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Park Hill — bus stop.

Daytime· 07:00 – 23:00
54.1dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Wall insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
19 April 2021Most recent
£520,000
+24.1%over 7 years30 October 2013
£419,000
Median price across the last 5 sales in SW4 9NS: £740,000 (2025–2024).
CO₂ Emissions
1.3 t/year
Street avg 3.0 t/year
SW4 9NS
Closest school
0.3 km
Harris Clapham Sixth Form. 77 schools nearby.
Night-time· 23:00 – 07:00
43.5dB
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