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Get started23b is a mid-terrace house in London (SW3 4TD). It has a recorded floor area of 67 m² (around 721 sq ft) and construction records dating it to 1900-1929. At 67 m² this is the 9th smallest of 16 units on EPC record in the building, where floor areas span 58–129 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (June 2021) shows an E (score 41), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 80), a 2-band jump. Main heating runs on electricity.
Sale prices here have outpaced London HPI: 19.9% per year against 0% for the wider region. Today's modelled estimate of £1,184,000 is 44.9% below the 2017 sale of £2,150,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£2,981/sq ft) was about 369.8% above the typical sold price in the postcode. It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs). Last sold in June 2017, so it's been off the market for around 9 years.
Recommended upgrades on file would lift this property by multiple EPC bands.
23b has more than quadrupled in price since its earliest registered sale in 1999.
£1,184,000
Modelled from EPC, postcode comparables and a sale-price growth of 19.9% per year over 18 years.
£2,150,000
Growth on file: 19.9% per year over 18 years.
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Detailed AI analysis
On price per m², 23b stands well clear of the street.
Price per m²
£32,090
Street avg £14,239
Floor Area
67 m²
Street avg 78 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Royal Hospital Chelsea / Lower Sloane Street — bus stop.

Daytime· 07:00 – 23:00
57.5dB

9 June 2017Most recent
£2,150,000
+246.8%over 17 years1 March 2000
£620,000
+588.9%30 November 1999
£90,000
Median price across the last 5 sales in SW3 4TD: £1,271,160 (2025–2019).
23 Sloane Court West Kensington And Chelsea London
Sold Feb 2025
23a Sloane Court West London
Sold Jun 2023
Flat 1 7 Sloane Court West London
Sold Jun 2021
11 13 Flat 3 Sloane Court West London
Sold May 2020
25 27 Sloane Court West Kensington And Chelsea London
Sold Aug 2019
An AI-written breakdown of everything that matters
Detailed EPC data
Full energy ratings, history and recommendations
Related properties
Comparable homes and street-level pricing
Full planning history
Every application and decision on record
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CO₂ Emissions
3.7 t/year
Street avg 3.5 t/year
SW3 4LH
Closest school
0.4 km
St Barnabas' CofE Primary School. 56 schools nearby.
Night-time· 23:00 – 07:00
48.6dB