Postcode district report · August 2026

SW1X, Kensington and Chelsea

SW1X is the 2nd Hapiest of Kensington and Chelsea's 9 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport. SW1X also reaches into Westminster; these figures are for its homes in Kensington and Chelsea.

Homes sold
33
in the 12 months to August 2026
Median price
£2,027,692
-14.5% on the year before
Price per m²
£18,609
median, homes with an EPC
Flats
88%
of homes sold

SW1X on the HPAI Swatch

Each tile ranks SW1X against the other postcode districts of Kensington and Chelsea.

Price per m²£18,609/m² 1st of 9
Price change-14.5% 5th of 9
Sales a year33 a year 9th of 9
Sales change-19.6% 2nd of 9
Energy efficiency67 EPC score 4th of 9
Carbon4.2 t CO₂ a home 6th of 9
Station nearby0.5 km 6th of 9
Yellow the best in Kensington and Chelsea Green above average Blue below average Purple weakest in Kensington and Chelsea

Yellow is Hapi: the more yellow, the better SW1X compares with the rest of Kensington and Chelsea. These colours compare postcode districts within Kensington and Chelsea; Kensington and Chelsea's own Swatch compares it with areas across England and Wales.

Kensington and Chelsea's postcode districts, Hapiest first

#Postcode districtSwatchHomes soldMedian pricePrice change
1 W11 167£1,150,000 -11.5%
2 SW1X 33£2,027,692 -14.5%
3 SW3 199£1,150,000 -23.3%
4 SW5 107£876,000 +4.3%
5 SW10 147£840,000 -15.4%
5 W14 63£1,060,000 -3.0%
7 SW7 123£1,170,000 -18.5%
8 W10 95£650,000 -13.9%
9 W8 161£1,250,000 -25.1%

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About these figures

Price per m²
Median price per square metre of homes sold in the last 12 months (homes with an EPC).
Price change
Median price in the last 12 months against the 12 months before.
Sales a year
Open-market sales in the last 12 months. More sales means a deeper, easier market.
Sales change
Sales in the 12 months to three months ago against the year before. The newest months are left out: Land Registry registers sales late.
Energy efficiency
Average EPC energy efficiency score of homes sold (higher is more efficient).
Carbon
Average carbon emissions of homes sold, tonnes a year. Lower is better.
Station nearby
Median distance from homes sold to the nearest railway station. Closer is better.

Open-market sales from HM Land Registry Price Paid Data in the 12 months to August 2026 (homes in Kensington and Chelsea only); price per m², energy and carbon from the homes sold that have an Energy Performance Certificate. Postcode districts with fewer than 20 sales a year in Kensington and Chelsea aren't ranked.