Last updated: 27 February 2026
SW1Y postcode district — Nine Elms, Westminster and Wandsworth
The SW1Y postcode district in London sits across Nine Elms, spanning the local authority areas of Westminster and Wandsworth. It groups thousands of unit postcodes used for addressing and is a practical geography for comparing nine elms property market activity with neighbouring districts. In the 12 months to 27 February 2026, recorded paid sales show an average sold price around £1,034,668 across 3 transactions in the district. On a year-on-year basis, the average moved about down 53.6% compared with the previous 12 months. The busiest segment was flat / maisonette, with 3 sales in that period—useful context when you compare house prices in SW1Y across terraces, flats and houses. Westminster and Wandsworth sold prices in the official Price Paid extract reflect completions (not asking prices), so they’re a solid base for research, desk-based due diligence and area IQ-style comparisons. We surface the latest-sale pattern per postcode where a standard paid sale exists in-window.
Street-level sold prices and property data for all 3 postcodes in SW1Y with a paid sale in the last 12 months. Sourced from HM Land Registry.
Data snapshot
SW1Y postcode district — key figures
| Average sold price (12 months) | £1,034,668 |
| Recorded transactions | 3 |
| Year-on-year change | -53.6% |
| Most common property type | Flat / maisonette |
| New build share | 0% |
| Data as of | 27 February 2026 |
According to Property Insights UK, the average house price in SW1Y (Nine Elms, Westminster and Wandsworth) was £1,034,668 in the 12 months to 27 February 2026, based on 3 Land Registry transactions. Prices fell 53.6% year-on-year. Flat / maisonette properties were the most commonly sold type, with a median price of £899,000.
Figures are derived from HM Land Registry Price Paid Data — Category A standard paid residential sales only. Licensed under the Open Government Licence v3.0.
Prices by property type — SW1Y
Median sold price · last 12 months to 2026-02-27 · Land Registry
Recently sold in SW1Y
Showing latest sale per postcode
Showing 3 of 3 postcodes (latest standard paid sale per unit postcode in the last 12 months in this district).
Help & guidance
Frequently asked questions about SW1Y
Straightforward answers about sold prices, Land Registry data and what you can do with this page.
What is the average house price in SW1Y?
The average sold price in SW1Y (Nine Elms) is £1,034,668 based on 3 sales in the last 12 months, as of 27 February 2026. This represents a -53.6% change compared to the previous 12 months (average basis).
What types of properties sell most in SW1Y?
The most common property type sold in SW1Y in the last 12 months is flat / maisonette with 3 sales. The median price for a flat / maisonette in SW1Y is £899,000.
What is the cheapest property type in SW1Y?
Based on Land Registry data, flat / maisonette properties have the lowest median price in SW1Y at £899,000. This is based on 3 sales in the last 12 months.
Has the SW1Y property market gone up or down?
House prices in SW1Y have fallen by 53.6% in the last 12 months compared to the previous year. The average sold price moved from £2,232,188 to £1,034,668.
Is SW1Y freehold or leasehold?
In the last 12 months, 0 sales in SW1Y were freehold (0%) and 3 were leasehold (100%), using the Land Registry Duration field on each transaction (3 sales in total in this slice).