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Get startedFlat 5 is a one-bedroom mid-terrace house in Kensington And Chelsea, London, London (W11 4SN). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 1900-1929 and council tax band E. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. At 39 m² this is the smallest unit on EPC record across the building (39–74 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (43 versus a best of 78). The latest certificate (February 2025) shows an E (score 43), well below the UK norm with real room to improve. Earlier certificates rated it D (June 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Average to Very Poor. The recommended improvements would lift it to C (score 74), a 2-band jump. Main heating runs on electricity.
It hasn't traded since May 1997, a hold of 29 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £493,000 sits 310.8% above the 1997 sale of £120,000. On a £-per-square-foot basis, the last sale (£286/sq ft) was about 52.3% below the postcode norm. At 39 m² it's 29.1% smaller than the typical home in the postcode (55 m² median across 42 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs).
Recommended upgrades on file would lift this property by multiple EPC bands.
Flat 5's modelled value sits at over four times its earliest registered sale price (1997).
£493,000
Modelled from EPC, postcode comparables.
£120,000
Recorded with HM Land Registry.
On years held, Flat 5 stands well clear of the street.
Price per m²
£3,077
Street avg £9,661
Floor Area
39 m²
Street avg 63 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
18/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Royal Crescent — bus stop.

Daytime· 07:00 – 23:00
59.2dB

Changes detected from historical EPC data
Changed to a more efficient fuel source
Hot water efficiency decreased
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
9 May 1997Most recent
£120,000
Median price across the last 5 sales in W11 4SN: £790,000 (2025–2021).
37 Royal Crescent Kensington And Chelsea London
Sold Jun 2025
Flat A 33 Royal Crescent Kensington And Chelsea London
Sold Mar 2025
40 Royal Crescent Kensington And Chelsea London
Sold Jan 2025
Flat 5 23 Royal Crescent London
Sold Sept 2022
36 Royal Crescent Kensington And Chelsea London
Sold May 2021
CO₂ Emissions
2.8 t/year
Street avg 2.8 t/year
W11 4BA
Closest school
0.3 km
The Cardinal Vaughan Memorial RC School. 76 schools nearby.
Night-time· 23:00 – 07:00
49.9dB
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