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Get startedJefferson House is a mid-terrace house in Kensington And Chelsea, London, London (SW3 1AX). It has a recorded floor area of 16 m² (around 172 sq ft) and construction records dating it to before 1900. At 16 m² this is the 4th smallest of 32 units on EPC record in Jefferson House, where floor areas span 12–229 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (October 2017) shows a C (score 72).
Sale prices here have outpaced London HPI: 9.1% per year against 0% for the wider region. Today's modelled estimate of £293,000 is 22.1% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£1,394/sq ft) was about 65.3% above the typical sold price in the postcode. At 16 m² it sits well below the postcode median (28 m² across 32 EPCs), making it one of the more compact homes locally. Most recent transfer: June 2018 at £240,000.
Jefferson House's carbon output is low for the local stock.
Price for Jefferson House has grown more than fourfold since the 1995 starting point.
£293,000
Modelled from EPC, postcode comparables and a sale-price growth of 9.1% per year over 23 years.
£240,000
Growth on file: 9.1% per year over 23 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
Floor Area for Jefferson House lags the street by a wide margin.
Price per m²
£15,000
Street avg £14,585
Floor Area
16 m²
Street avg 42 m²
Habitable Rooms
1 rooms
Street avg 1 rooms
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Knightsbridge Station — tram stop.

Daytime· 07:00 – 23:00
58.3dB

11 June 2018Most recent
£240,000
+37.9%over 12 years28 February 2006
£174,000
+456.8%over 11 years25 January 1995
£31,250
Median price across the last 5 sales in SW3 1AX: £450,000 (2025–2022).
Jefferson House Flat 8 11 Basil Street Kensington And Chelsea London
Sold Jun 2025
Jefferson House Flat 32 11 Basil Street Kensington And Chelsea London
Sold May 2025
Jefferson House Flat 2 11 Basil Street Kensington And Chelsea London
Sold Jan 2024
Jefferson House Flat 21 11 Basil Street Kensington And Chelsea London
Sold Oct 2022
Jefferson House Flat 7 11 Basil Street Kensington And Chelsea London
Sold Sept 2022
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CO₂ Emissions
1.0 t/year
Street avg 1.8 t/year
SW3 1LS
Closest school
0.8 km
Holy Trinity CofE Primary School. 51 schools nearby.
Night-time· 23:00 – 07:00
49.5dB