House prices in SL1
Sold prices in the SL1 postcode district, from HM Land Registry records.
The average sold price in SL1 over the 12 months to May 2026 was £415,388, across 438 recorded sales. Semi-detached homes sold for a median of £456,750. Prices rose 2.6% on the previous year.
Average sold price
£415,388
Median sold price
£400,000
Sales (12 months)
438
Year on year
+2.6%
Median sold price, last 12 months
Monthly medians; months with no recorded sales are left blank.
What did each property type sell for?
Semi-detached£456,750130 sales
Flats£220,000130 sales
Terraced£395,000113 sales
Detached£670,00065 sales
What the numbers say
The average sold price in SL1 over the 12 months to May 2026 was £415,388, across 438 recorded sales. Semi-detached homes were the most traded type, with 130 sales at a median of £456,750, followed by flats at £220,000. Prices rose 2.6% on the previous year. The median sale came in at £400,000, below the average, which points to a small number of higher-priced sales pulling the average up.