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Get startedThorburn House is a mid-terrace house in Westminster, London, London (SW1X 8EX). It has a recorded floor area of 110 m² (around 1184 sq ft), construction records dating it to 1976-1982 and council tax band H. At 110 m² this is the 16th 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 top. The latest certificate (June 2013) shows a C (score 78), near the top of the C band. When first surveyed in June 2011 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average; while lighting dropped from Very Good to Very Poor. The recommended improvements would push it to B (score 84). The latest certificate is from June 2013, so improvements made since then won't be reflected.
Sale prices here have outpaced London HPI: 15.5% per year against 0% for the wider region. Today's modelled estimate of £1,716,000 is 47.6% below the 2013 sale of £3,275,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£2,766/sq ft) was about 256.6% above the typical sold price in the postcode. On the market in September 2013 and unlisted since — roughly 13 years.
Thorburn House's EPC is over a decade old — improvements since won't be reflected.
This certificate is over 10 years old and is no longer valid.Expired 05 Jun 2023
Latest sale on Thorburn House was the highest on Land Registry record across the postcode.
£1,716,000
Modelled from EPC, postcode comparables and a sale-price growth of 15.5% per year over 11 years.
£3,275,000
Growth on file: 15.5% per year over 11 years.
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Price per m² for Thorburn House runs comfortably ahead of the street norm.
Price per m²
£29,773
Street avg £13,745
Floor Area
110 m²
Street avg 104 m²
Habitable Rooms
4 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
Fuel source changed
Heating controls upgraded for better temperature management
Wall insulation upgraded
Low energy lighting percentage decreased
Are we missing something? Tell us about home improvements to help adjust your valuation.
19 September 2013Most recent
£3,275,000
+81.9%over 2 years16 August 2011
£1,800,000
+188.0%over 9 years2 April 2002
£625,000
Median price across the last 5 sales in SW1X 8EX: £1,360,000 (2024–2019).
Thorburn House Flat 11 Kinnerton Street Westminster London
Sold Dec 2024
Thorburn House Flat 1 Kinnerton Street Westminster London
Sold Jan 2022
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
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

Street avg 3 rooms
CO₂ Emissions
2.3 t/year
Street avg 3.6 t/year
SW1X 8HN
Closest school
0.8 km
Holy Trinity CofE Primary School. 48 schools nearby.
Night-time· 23:00 – 07:00
51.5dB