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Get startedFlat 4 is a two-bedroom mid-terrace house in London (SW4 9SH). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1900-1929 and council tax band E. At 57 m² this is the smallest unit on EPC record across the building (57–89 m²). The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (77 versus a worst of 58). Other recorded features include a balcony. The latest certificate (February 2020) shows a C (score 77), near the top of the C band. The rating has held steady at C across 2 certificates since January 2010. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Poor and lighting went from Average to Good. The recommended improvements would push it to B (score 81).
It hasn't traded since July 1998, a hold of 28 years that's notably long for the area. Sale prices here have outpaced London HPI: 24.9% per year against 0% for the wider region. Today's modelled estimate of £574,000 sits 295.9% above the 1998 sale of £145,000. On a £-per-square-foot basis, the last sale (£236/sq ft) was about 49.9% below the postcode norm. Its energy rating outperforms most of the postcode (better than 81% of similar EPCs).
Flat 4's carbon output is low for the local stock.
Flat 4's modelled value sits at over four times its earliest registered sale price (1996).
£574,000
Modelled from EPC, postcode comparables and a sale-price growth of 24.9% per year over 2 years.
£145,000
Growth on file: 24.9% per year over 2 years.
CO₂ Emissions for Flat 4 runs comfortably ahead of the street norm.
Price per m²
£2,544
Street avg £7,537
Floor Area
57 m²
Street avg 68 m²
Habitable Rooms
3 rooms
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Sisters Avenue — bus stop.

Daytime· 07:00 – 23:00
57.0dB

Changes detected from historical EPC data
Heating controls changed
Single glazing replaced with double or better glazing
Wall insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
15 July 1998Most recent
£145,000
+58.5%over 2 years18 June 1996
£91,500
Median price across the last 5 sales in SW4 9SH: £635,000 (2025–2021).
Flat 1 109 Clapham Common North Side London
Sold Feb 2025
Flat 1 108 Clapham Common North Side London
Sold Jun 2023
Flat 2 108 Clapham Common North Side London
Sold Nov 2022
Flat 5 107 Clapham Common North Side London
Sold Aug 2022
Flat 3 107 Clapham Common North Side London
Sold Nov 2021
Street avg 3 rooms
CO₂ Emissions
1.4 t/year
Street avg 3.0 t/year
SW4 9PU
Closest school
0.5 km
Belleville Wix Academy. 69 schools nearby.
Night-time· 23:00 – 07:00
48.5dB
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