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Get startedBasement Flat is a one-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW10 9BG). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (October 2022) shows a C (score 69), just inside the C band. When first surveyed in June 2009 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good and lighting went from Good to Very Good; while window efficiency dropped from Good to Average.
Sale prices here have outpaced London HPI: 5.7% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£1,208/sq ft) was about 107.2% above the typical sold price in the postcode. At 40 m² it's 21.6% smaller than the typical home in the postcode (51 m² median across 41 EPCs). Most recent transfer: February 2024 at £520,000.
Basement Flat has more than quadrupled in price since its earliest registered sale in 1997.
£539,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.7% per year over 27 years.
£520,000
Growth on file: 5.7% per year over 27 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
Basement Flat is notably below the street on floor area.
Price per m²
£13,000
Street avg £11,610
Floor Area
40 m²
Street avg 55 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
Reported crime in the wider district is trending notably upward year-on-year.
Crime
7/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Fulham Road / Chelsea & Westminster Hosp — bus stop.

Daytime· 07:00 – 23:00
56.3dB

Changes detected from historical EPC data
Hot water system upgraded
Low energy lighting percentage decreased
Hot water efficiency decreased
Windows upgraded, improving insulation
More low energy lighting installed
Hot water efficiency improved
Glazing upgraded to newer, more efficient type
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Are we missing something? Tell us about home improvements to help adjust your valuation.
8 February 2024Most recent
£520,000
+145.3%over 21 years7 March 2002
£212,000
+78.2%over 4 years30 June 1997
£119,000
Median price across the last 5 sales in SW10 9BG: £635,000 (2025–2023).
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CO₂ Emissions
1.7 t/year
Street avg 2.2 t/year
SW10 9EU
Closest school
0.1 km
Servite RC Primary School. 60 schools nearby.
Night-time· 23:00 – 07:00
48.0dB