SE23 postcode district — Forest Hill, Southwark and Lewisham
The SE23 postcode district in London sits across Forest Hill, spanning the local authority areas of Southwark and Lewisham. It groups thousands of unit postcodes used for addressing and is a practical geography for comparing forest hill property market activity with neighbouring districts. In the 12 months to 31 March 2026, recorded paid sales show an average sold price around £585,849 across 251 transactions in the district. On a year-on-year basis, the average moved about down 2.5% compared with the previous 12 months. The busiest segment was flat / maisonette, with 146 sales in that period—useful context when you compare house prices in SE23 across terraces, flats and houses. Southwark and Lewisham 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 188 postcodes in SE23 with a paid sale in the last 12 months. Sourced from HM Land Registry.
According to Property Insights UK, the average house price in SE23 (Forest Hill, Southwark and Lewisham) was £585,849 in the 12 months to 31 March 2026, based on 251 Land Registry transactions. Prices fell 2.5% year-on-year. Flat / maisonette properties were the most commonly sold type, with a median price of £403,000. 0.4% of sales were new builds.
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 — SE23
Median sold price · last 12 months to 2026-03-31 · Land Registry
Showing 189 of 189 postcodes (latest standard paid sale per unit postcode in the last 12 months in this district).
Help & guidance
Frequently asked questions about SE23
Straightforward answers about sold prices, Land Registry data and what you can do with this page.
1
What is the average house price in SE23?
The average sold price in SE23 (Forest Hill) is £585,849 based on 251 sales in the last 12 months, as of 31 March 2026. This represents a -2.5% change compared to the previous 12 months (average basis).
2
What types of properties sell most in SE23?
The most common property type sold in SE23 in the last 12 months is flat / maisonette with 146 sales. The median price for a flat / maisonette in SE23 is £403,000.
3
What is the cheapest property type in SE23?
Based on Land Registry data, flat / maisonette properties have the lowest median price in SE23 at £403,000. This is based on 146 sales in the last 12 months.
4
Has the SE23 property market gone up or down?
House prices in SE23 have fallen by 2.5% in the last 12 months compared to the previous year. The average sold price moved from £600,936 to £585,849.
5
Is SE23 freehold or leasehold?
In the last 12 months, 103 sales in SE23 were freehold (41%) and 148 were leasehold (59%), using the Land Registry Duration field on each transaction (251 sales in total in this slice).