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Get started23 Hasker Street is a three-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW3 2LE). It has a recorded floor area of 131 m² (around 1410 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (August 2015) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it D (June 2011); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Poor, roof efficiency went from Very Poor to Very Good and window efficiency went from Very Poor to Good. The recommended improvements would push it to D (score 67). The latest certificate is from August 2015, so improvements made since then won't be reflected.
Sale prices here have lagged London HPI: -0.4% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£2,589/sq ft) was about 53.1% above the typical sold price in the postcode. 4 planning records sit against the property, 2 approved, 2 refused. Past consents include an extension, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Last sale on file: £3,650,000 in May 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
This certificate is over 10 years old and is no longer valid.Expired 04 Aug 2025
Council records include a part-single-part-two-storey rear extension at 23 Hasker Street.
Construction of basement accommodation (Certificate of Proposed Development)
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£3,745,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.4% per year over 6 years.
£3,650,000
Growth on file: -0.4% per year over 6 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
On habitable rooms, 23 Hasker Street stands well clear of the street.
Price per m²
£27,863
Street avg £25,290
Floor Area
131 m²
Street avg 135 m²
Habitable Rooms
7 rooms
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.3 km
Marlborough Primary School — bus stop.

Daytime· 07:00 – 23:00
58.0dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system changed
Single glazing replaced with double or better glazing
Roof insulation improved
Heating controls upgraded for better temperature management
Hot water system upgraded
Low energy lighting percentage decreased
Heating controls changed
Wall insulation improved
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Insertion of escape window within front vaults to allow them to be used as habitable accommodation.
2 more applications for this property
Join to see all planning history.
6 May 2022Most recent
£3,650,000
-2.7%over 6 years10 November 2015
£3,750,000
Median price across the last 5 sales in SW3 2LE: £3,000,000 (2024–2019).
25 Hasker Street Kensington And Chelsea London
Sold Apr 2024
55 Hasker Street Kensington And Chelsea London
Sold Oct 2022
45 Hasker Street Kensington And Chelsea London
Sold Mar 2022
49 Hasker Street Kensington And Chelsea London
Sold Aug 2020
3 Hasker Street Kensington And Chelsea London
Sold Nov 2019
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Detailed EPC data
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Full planning history
Every application and decision on record
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Street avg 5 rooms
CO₂ Emissions
3.3 t/year
Street avg 6.0 t/year
SW3 2LB
Closest school
0.2 km
Marlborough Primary School. 58 schools nearby.
Night-time· 23:00 – 07:00
47.8dB