Challenge 
London house price index
How London prices per square foot have moved since January 2024, We built it from HM Land Registry sales to bring every London comparable sale to April 2026, the proposed valuation date for the mansion tax. April 2026 = 100.
Index of price per sq ft, April 2026 = 100. A value of 105 means prices were 5% higher than in April 2026.
The index by quarter
The average of each quarter's monthly values, April 2026 = 100.
See every month
Bringing a sale to April 2026 prices
How much we adjust the price of a London sale to give its value at April 2026. For example, −5.0% means a sale from that quarter is reduced by 5%, because prices were higher then.
Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0. Floor areas from energy performance certificate data (Ministry of Housing, Communities and Local Government). This index is our own proprietary analysis, not an official statistic.