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Get startedFlat 3 is a mid-terrace house in London (SW1X 0AE). It has a recorded floor area of 223 m² (around 2400 sq ft), construction records dating it to before 1900 and council tax band H. At 223 m² this is the largest unit on EPC record across the building (188–223 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (64 versus a best of 71). The latest certificate (October 2018) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since November 2008. Between certificates, window efficiency went from Very Poor to Average and lighting went from Poor to Good. The recommended improvements would lift it to B (score 81), a 2-band jump.
Sale prices here have lagged London HPI: -1.4% per year against 0% for the wider region. Today's modelled estimate of £4,316,000 is 11.9% below the 2021 sale of £4,900,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£2,041/sq ft) was about 399% above the typical sold price in the postcode. At 223 m² the property is well over the postcode median (90 m² across 41 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 1 approved, 1 refused. Past consents include a loft conversion, meaningful when judging how the property has evolved. Last sale on file: £4,900,000 in April 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Flat 3's carbon output runs well above what efficient homes in the postcode produce.
A a loft conversion application was refused at Flat 3 in 2023.
Provision of a dormer roof alteration to rear roofslope
Flat 3 saw 3 transfers in just over a decade — high turnover for the postcode.
£4,316,000
Modelled from EPC, postcode comparables and a sale-price growth of -1.4% per year over 7 years.
£4,900,000
Growth on file: -1.4% per year over 7 years.
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Flat 3 outperforms the street on floor area by a wide margin.
Price per m²
£21,973
Street avg £14,799
Floor Area
223 m²
Street avg 106 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
0.3 km
Pont Street — bus stop.

Daytime· 07:00 – 23:00
58.9dB

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Changes detected from historical EPC data
Single glazing replaced with double or better glazing
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Provision of dormer window to rear roofslope***WITHDRAWN***
30 April 2021Most recent
£4,900,000
+14.0%over 2 years20 February 2019
£4,300,000
-20.4%over 4 years13 June 2014
£5,400,000
Median price across the last 5 sales in SW1X 0AE: £1,325,000 (2025–2022).
Flat 5 50 Pont Street Kensington And Chelsea London
Sold Jun 2025
Flat 1 50 Pont Street Kensington And Chelsea London
Sold May 2024
Flat 6 50 Pont Street Kensington And Chelsea London
Sold Nov 2023
Flat C 62 Pont Street Kensington And Chelsea London
Sold Mar 2023
Flat 3 56 Pont Street Kensington And Chelsea London
Sold Apr 2022
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 4 rooms
CO₂ Emissions
9.1 t/year
Street avg 4.2 t/year
SW1X 0DG
Closest school
0.5 km
St Joseph's Catholic Primary School. 53 schools nearby.
Night-time· 23:00 – 07:00
48.8dB