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Get startedThird & Fourth Floor Flat is a mid-terrace house in London (SW1X 9RX). It has a recorded floor area of 121 m² (around 1302 sq ft) and construction records dating it to before 1900. The latest certificate (September 2018) shows a C (score 70). When first surveyed in April 2009 the rating was E, the property has climbed 2 bands since. Between certificates, window efficiency went from Very Poor to Good, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to B (score 83).
At 121 m² it's 24.8% smaller than the typical home in the postcode (161 m² median across 23 EPCs). One historical planning record sits against the property in 2012.
Squaring off existing non-original opening at third floor level between the front two receptions rooms and formation of a new doorway with jib door between the third floor kitchen and dining room at the rear of the property. (Internal alterations only).
Third & Fourth Floor Flat has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,739,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
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EPC Rating
70 (C)
Street avg 69 (D)
Floor Area
121 m²
Street avg 175 m²
CO₂ Emissions
3.7 t/year
Street avg 5.8 t/year
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Pont Street — bus stop.

Daytime· 07:00 – 23:00
59.3dB

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Changes detected from historical EPC data
Hot water system upgraded
Single glazing replaced with double or better glazing
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in SW1X 9RX: £5,250,000 (2025–2016).
Flat 1 37 Cadogan Place London
Sold Apr 2025
39 Cadogan Place Kensington And Chelsea London
Sold Apr 2023
Flat 2 37 Cadogan Place London
Sold Sept 2022
34 35 Third Floor Flat Cadogan Place London
Sold Dec 2012
36 Cadogan Place Kensington And Chelsea London
Sold Nov 2007
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

Habitable Rooms
4 rooms
Street avg 4 rooms
SW1X 9RX
Closest school
0.4 km
Holy Trinity CofE Primary School. 55 schools nearby.
Night-time· 23:00 – 07:00
49.6dB