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Get started9 Halsey Street is a four-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW3 2QH). It has a recorded floor area of 231 m² (around 2486 sq ft), construction records dating it to before 1900 and council tax band H. The latest certificate (February 2024) shows a C (score 70). When first surveyed in June 2009 the rating was E, the property has climbed 2 bands since. Between certificates, lighting went from Average to Very Good; while window efficiency dropped from Average to Poor. The recommended improvements would push it to B (score 81).
Sale prices here have outpaced London HPI: 10.8% per year against 0% for the wider region. Today's modelled estimate of £5,420,000 is 35.5% above the 2017 sale price. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Last sold in June 2017, so it's been off the market for around 9 years. Across the public record there are 4 sales, relatively high churn for a single property. Its energy rating outperforms most of the postcode (better than 85% of similar EPCs). 4 bedrooms is on the larger side for this postcode, where 3 is the typical count.
9 Halsey Street's carbon output runs well above what efficient homes in the postcode produce.
9 Halsey Street has a listed-building consent on record — alterations to a listed property are tightly controlled.
Insertion of double doors in wall between hallway and reception room ***WITHDRAWN***
9 Halsey Street has more than tripled in price since its earliest registered sale in 2004.
£5,420,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.8% per year over 13 years.
£4,000,000
Growth on file: 10.8% per year over 13 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
On epc rating, 9 Halsey Street stands well clear of the street.
Price per m²
£17,316
Street avg £17,078
Floor Area
231 m²
Street avg 210 m²
Habitable Rooms
8 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

Changes detected from historical EPC data
Heating controls changed
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Single storey · Rear of property
Addition of mansard roof extension; replacement of existing conservatory and single storey rear extension with new glazed extension at lower ground and ground floor levels and complete refurbishment works.
1 more application for this property
Join to see all planning history.
30 June 2017Most recent
£4,000,000
+90.5%over 7 years30 October 2009
£2,100,000
-17.6%over 3 years21 March 2006
£2,550,000
+142.9%over 1 year25 June 2004
£1,050,000
Median price across the last 5 sales in SW3 2QH: £3,950,000 (2025–2022).
18 Halsey Street Kensington And Chelsea London
Sold Oct 2025
1 Halsey Street Kensington And Chelsea London
Sold Sept 2024
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
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Street avg 7 rooms
CO₂ Emissions
6.3 t/year
Street avg 8.2 t/year
SW3 2QH
Closest school
0.1 km
St Joseph's Catholic Primary School. 55 schools nearby.
Night-time· 23:00 – 07:00
47.8dB