12 Blackthorne Road, Biggin Hill, Westerham, TN16 3SH

12 Blackthorne Road is a three-bedroom semi-detached house in Biggin Hill, Westerham, Westerham (TN16 3SH). It has a recorded floor area of 75 m² (around 807 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (January 2015) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 86), a 2-band jump. The latest certificate is from January 2015, so improvements made since then won't be reflected. Our model identifies extension potential, subject to local planning policy.

Last sale on file: £430,000 in December 2021. Across the public record there are 5 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. Across 2003–2021, sale prices on this property compounded at 4.4% per year. On a £-per-square-foot basis, the last sale (£533/sq ft) was about 99.6% above the typical sold price in the postcode.