Postcode district report · August 2026

W1W, Westminster

W1W is the 15th Hapiest of Westminster's 15 postcode districts on the HPAI Swatch, which compares them with each other on prices, how the market is moving, energy efficiency and transport.

Homes sold

in the 12 months to August 2026

Median price

£796,175

-39.9% on the year before

Price per m²

–

median, homes with an EPC

Flats

100%

of homes sold

W1W on the HPAI Swatch

Each tile ranks W1W against the other postcode districts of Westminster.

Price per m²No data –

Price change-39.9% 14th of 15

Sales a year20 a year 14th of 15

Sales change-40.5% 11th of 15

Energy efficiencyNo data –

CarbonNo data –

Station nearbyNo data –

Yellow the best in Westminster Green above average Blue below average Purple weakest in Westminster

Yellow is Hapi: the more yellow, the better W1W compares with the rest of Westminster. These colours compare postcode districts within Westminster; Westminster's own Swatch compares it with areas across England and Wales.

Westminster's postcode districts, Hapiest first

#	Postcode district	Homes sold	Median price	Price change
1	W9	279	£675,000	-4.9%
2	SW1V	158	£647,500	-6.2%
3	W10	34	£845,000	-4.9%
4	W2	274	£758,632	-13.3%
5	NW8	146	£832,500	-8.8%
6	W1U	38	£1,185,500	-7.0%
7	SW1P	104	£732,500	-12.3%
7	W1H	51	£1,075,000	-28.3%
9	NW1	47	£820,000	-6.4%
10	SW1X	20	£3,530,000	+21.7%
11	SW7	29	£2,200,000	-27.7%
12	SW1H	21	£860,000	-35.6%
13	SW1W	51	£1,300,000	-46.6%
14	W1G	22	£1,612,500	-26.7%
15	W1W	20	£796,175	-39.9%

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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 Westminster 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 Westminster aren't ranked.