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Get startedThorburn House is a three-bedroom mid-terrace house in Westminster, London, London (SW1X 8EX). It has a recorded floor area of 102 m² (around 1098 sq ft), construction records dating it to 1950-1966 and council tax band H. At 102 m² this is the 9th smallest of 20 units on EPC record in Thorburn House, where floor areas span 82–193 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (March 2023) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since September 2012. Between certificates, lighting went from Very Poor to Very Good; while window efficiency dropped from Average to Very Poor. The recommended improvements would push it to C (score 76).
Sale prices here have outpaced London HPI: 5.6% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£1,239/sq ft) was about 41.8% above the typical sold price in the postcode. Last sale on file: £1,360,000 in January 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Sale price has grown by over 3x since 1998.
£1,455,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.6% per year over 23 years.
£1,360,000
Growth on file: 5.6% per year over 23 years.
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On years held, Thorburn House runs well behind the street norm.
Price per m²
£13,333
Street avg £15,009
Floor Area
102 m²
Street avg 105 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Sloane Street / Knightsbridge Station — bus stop.

Daytime· 07:00 – 23:00
59.9dB

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Changes detected from historical EPC data
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
14 January 2022Most recent
£1,360,000
+248.7%over 23 years14 December 1998
£390,000
Median price across the last 5 sales in SW1X 8EX: £2,125,000 (2024–2018).
Thorburn House Flat 11 Kinnerton Street Westminster London
Sold Dec 2024
Thorburn House Flat 12a Kinnerton Street Westminster London
Sold Oct 2019
Thorburn House Flat 19 Kinnerton Street Westminster London
Sold Apr 2019
Thorburn House Flat 9 Kinnerton Street Westminster London
Sold Jun 2018
Thorburn House Flat 4 Kinnerton Street Westminster London
Sold May 2017
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Plus much more
Comparable sales, transport, crime, schools and more

CO₂ Emissions
4.0 t/year
Street avg 3.5 t/year
SW1X 8RR
Closest school
0.8 km
Holy Trinity CofE Primary School. 48 schools nearby.
Night-time· 23:00 – 07:00
51.5dB