15a, Cardigan Road, Richmond, TW10 6BJ

15a is a semi-detached house in Richmond (TW10 6BJ). It has a recorded floor area of 98 m² (around 1055 sq ft) and construction records dating it to before 1900. At 98 m² this is the 64th smallest of 70 units on EPC record in the building, where floor areas span 26–222 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (November 2024) shows a C (score 75), near the top of the C band. When first surveyed in September 2009 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Good and lighting went from Poor to Very Good.

At 98 m² the property is well over the postcode median (63 m² across 69 EPCs), placing it in the larger end of the local stock. Most recent transfer: May 2021 at £700,000. 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 1996–2021, sale prices on this property compounded at 8.5% per year. Today's modelled estimate of £794,000 is 13.4% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£664/sq ft) was about 41.7% above the typical sold price in the postcode. 3 planning records sit against the property, 0 approved, 1 refused.