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Get started21 Seymour Walk is a two-bedroom mid-terrace house in Kensington And Chelsea, London, London (SW10 9NE). It has a recorded floor area of 198 m² (around 2131 sq ft), construction records dating it to before 1900 and council tax band D. The latest certificate (November 2020) shows a C (score 70). When first surveyed in February 2009 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Average; while roof efficiency dropped from Average to Poor and window efficiency dropped from Poor to Very Poor. The recommended improvements would push it to B (score 85).
Sale prices here have outpaced London HPI: 11.9% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£1,497/sq ft) was about 77.6% above the typical sold price in the postcode. Last sale on file: £3,190,000 in May 2021. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One planning record on file: an extension approved in 2006. Past consents include an extension, meaningful when judging how the property has evolved. Its energy rating outperforms most of the postcode (better than 88% of similar EPCs).
Extension: Single storey · Rear of property
Erection of rear closet wing extension and single storey lower ground floor extension with terrace above.
Price for 21 Seymour Walk has grown more than fourfold since the 2003 starting point.
£3,270,000
Modelled from EPC, postcode comparables and a sale-price growth of 11.9% per year over 17 years.
£3,190,000
Growth on file: 11.9% per year over 17 years.
Everything we know about this property, compiled into one in-depth, downloadable report.
On habitable rooms, 21 Seymour Walk stands well clear of the street.
Price per m²
£16,111
Street avg £25,170
Floor Area
198 m²
Street avg 177 m²
Habitable Rooms
8 rooms
Reported crime in the wider district is trending notably upward year-on-year.
Crime
7/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Chelsea & Westminster Hospital — bus stop.

Daytime· 07:00 – 23:00
56.8dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Heating controls changed
Hot water efficiency decreased
Windows upgraded, improving insulation
Wall insulation improved
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
19 May 2021Most recent
£3,190,000
+40.5%over 11 years29 July 2009
£2,270,000
+81.6%over 4 years6 July 2005
£1,250,000
+177.8%over 1 year30 November 2003
£450,000
Median price across the last 5 sales in SW10 9NE: £3,275,000 (2025–2022).
51 Seymour Walk Kensington And Chelsea London
Sold Feb 2025
5 Seymour Walk Kensington And Chelsea London
Sold Dec 2022
17 Seymour Walk Kensington And Chelsea London
Sold Nov 2022
1a Flat 1 Seymour Walk Kensington And Chelsea London
Sold Aug 2022
25 Seymour Walk Kensington And Chelsea London
Sold May 2022
Detailed AI analysis
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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Street avg 6 rooms
CO₂ Emissions
5.3 t/year
Street avg 6.8 t/year
SW10 9UN
Closest school
0.1 km
Servite RC Primary School. 60 schools nearby.
Night-time· 23:00 – 07:00
47.9dB