Detached
£724,000
1 sale12m · whole districtLow confidence
Last updated: 31 March 2026
SE21 postcode district — West Dulwich, Southwark and Lambeth
The SE21 postcode district in London sits across West Dulwich, spanning the local authority areas of Southwark and Lambeth. It groups thousands of unit postcodes used for addressing and is a practical geography for comparing west dulwich property market activity with neighbouring districts. In the 12 months to 31 March 2026, recorded paid sales show an average sold price around £835,798 across 80 transactions in the district. On a year-on-year basis, the average moved about down 16.8% compared with the previous 12 months. The busiest segment was flat / maisonette, with 43 sales in that period—useful context when you compare house prices in SE21 across terraces, flats and houses. Southwark and Lambeth 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 55 postcodes in SE21 with a paid sale in the last 12 months. Sourced from HM Land Registry.
Avg. sold price (12m)
£835,798
↓ 16.8% vs prior 12 months
Recorded sales (12m)
80
Postcodes (12m)
55
Data snapshot
SE21 postcode district — key figures
| Average sold price (12 months) | £835,798 |
| Recorded transactions | 80 |
| Year-on-year change | -16.8% |
| Most common property type | Flat / maisonette |
| New build share | 0% |
| Data as of | 31 March 2026 |
Property Insights UKSource: HM Land Registry
According to Property Insights UK, the average house price in SE21 (West Dulwich, Southwark and Lambeth) was £835,798 in the 12 months to 31 March 2026, based on 80 Land Registry transactions. Prices fell 16.8% year-on-year. Flat / maisonette properties were the most commonly sold type, with a median price of £470,000.
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 — SE21
Median sold price · last 12 months to 2026-03-31 · Land Registry
Semi-detached
£1,465,386
15 sales12m · whole districtMedium confidence
Terraced
£950,000
21 sales12m · whole districtHigh confidence
Flat / maisonette
£470,000
43 sales12m · whole districtHigh confidence
Recently sold in SE21
Showing latest sale per postcode
Showing 55 of 55 postcodes (latest standard paid sale per unit postcode in the last 12 months in this district).
Help & guidance
Frequently asked questions about SE21
Straightforward answers about sold prices, Land Registry data and what you can do with this page.
What is the average house price in SE21?
The average sold price in SE21 (West Dulwich) is £835,798 based on 80 sales in the last 12 months, as of 31 March 2026. This represents a -16.8% change compared to the previous 12 months (average basis).
What types of properties sell most in SE21?
The most common property type sold in SE21 in the last 12 months is flat / maisonette with 43 sales. The median price for a flat / maisonette in SE21 is £470,000.
What is the cheapest property type in SE21?
Based on Land Registry data, flat / maisonette properties have the lowest median price in SE21 at £470,000. This is based on 43 sales in the last 12 months.
Has the SE21 property market gone up or down?
House prices in SE21 have fallen by 16.8% in the last 12 months compared to the previous year. The average sold price moved from £1,003,993 to £835,798.
Is SE21 freehold or leasehold?
In the last 12 months, 33 sales in SE21 were freehold (41.2%) and 47 were leasehold (58.8%), using the Land Registry Duration field on each transaction (80 sales in total in this slice).