21 Gambetta Street is a two-bedroom mid-terrace house in Wandsworth, London, London (SW8 3TS). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (November 2020) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since March 2010. Between certificates, window efficiency went from Very Poor to Average and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 73). At 59 m² this is the 11th smallest of 24 units on EPC record in the building, where floor areas span 46–72 m². The building's EPC ratings span G to C across 24 units on file.
Sale prices here have outpaced London HPI: 7.9% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£1,024/sq ft) was about 74.5% above the typical sold price in the postcode. On the market in June 2016 and unlisted since — roughly 10 years. Across the public record there are 4 sales, relatively high churn for a single property. One planning record on file: an extension approved in 2015. Past consents include an extension, meaningful when judging how the property has evolved.
21 Gambetta Street has an approved extension on the planning record.
Erection of mansard roof extension over part of rear addition, and alterations to first floor windows.
21 Gambetta Street has more than tripled in price since its earliest registered sale in 1999.
£647,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.9% per year over 17 years.
£650,000
Growth on file: 7.9% per year over 17 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed analysis
A written breakdown of everything that matters
Price per m²
£11,017
Street avg £8,807
Floor Area
59 m²
Street avg 60 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
12/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Prairie Street — bus stop.

Daytime· 07:00 – 23:00
53.9dB

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Changes detected from historical EPC data
Heating controls changed
Windows upgraded, improving insulation
More low energy lighting installed
Full planning data for 21 Gambetta Street, Wandsworth, London, SW8 3TS
Every application and decision on this property and nearby, in full, in the report.
23 June 2016Most recent
£650,000
+71.1%over 5 years17 September 2010
£380,000
+52.0%over 5 years23 March 2005
£249,950
+38.1%over 5 years14 September 1999
£181,000
Median price across the last 5 sales in SW8 3TS: £645,000 (2025–2023).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Comparable sales data
Plus transport, crime, schools and air quality
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CO₂ Emissions
2.3 t/year
Street avg 2.8 t/year
SW8 3TU
Closest school
0.3 km
Heathbrook Primary School. 82 schools nearby.
Flood risk
Very low
From the Environment Agency.
Night-time· 23:00 – 07:00
44.4dB