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Get started1 Halsey Street is a three-bedroom end-of-terrace house in Kensington And Chelsea, London, London (SW3 2QH). It has a recorded floor area of 191 m² (around 2056 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (September 2023) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 75), a 2-band jump.
6 planning records sit against the property, 4 approved, 2 refused. Past consents include an extension, an annexe and new windows, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Today's modelled estimate of £4,277,000 is 41.2% above the 2024 sale price. Most recent transfer: September 2024 at £3,028,500.
1 Halsey Street's carbon output runs well above what efficient homes in the postcode produce.
A a single-storey extension application was refused at 1 Halsey Street in 2025.
Extension: Single storey
Ground and first floor closet wing extension to increase the depth of the existing closet wing; removal of non-original door and replacement with sash window; removal of railings on unofficial terrace to rear; removal and relocation of original sash window in horizontal extension; installation air conditioning unit to internal joinery in rear reception room; and reconfiguration of ground floor primary reception rooms to return them to original proportion with original features reinstated.
1 Halsey Street valuation sits well clear of the typical sold price in this postcode.
£4,277,000
Modelled from EPC, postcode comparables.
£3,028,500
Recorded with HM Land Registry.
Everything we know about this property, compiled into one in-depth, downloadable report.
Habitable Rooms for 1 Halsey Street lags the street by a wide margin.
Price per m²
£15,856
Street avg £17,190
Floor Area
191 m²
Street avg 213 m²
Habitable Rooms
5 rooms
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Draycott Place — bus stop.

Daytime· 07:00 – 23:00
57.8dB

Extension: Single storey
Ground and first floor closet wing extension to increase the depth of the existing closet wing; removal of non-original door and replacement with sash window; removal of railings on unofficial terrace to rear; removal and relocation of original sash window in horizontal extension; installation air conditioning unit to internal joinery in rear reception room; and reconfiguration of ground floor primary reception rooms to return them to original proportion with original features reinstated.
4 more applications for this property
Join to see all planning history.
24 September 2024Most recent
£3,028,500
Median price across the last 5 sales in SW3 2QH: £4,250,000 (2025–2021).
18 Halsey Street Kensington And Chelsea London
Sold Oct 2025
7 Halsey Street Kensington And Chelsea London
Sold Jun 2023
6 Halsey Street Kensington And Chelsea London
Sold Jul 2022
15 Halsey Street Kensington And Chelsea London
Sold Apr 2022
16 Halsey Street Kensington And Chelsea London
Sold Oct 2021
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Street avg 8 rooms
CO₂ Emissions
9.2 t/year
Street avg 8.0 t/year
SW3 2TS
Closest school
0.1 km
St Joseph's Catholic Primary School. 55 schools nearby.
Night-time· 23:00 – 07:00
47.8dB