Flat 1, 21 Kingsdowne Road, Surbiton, KT6 6JZ

Flat 1 is a two-bedroom property in Surbiton (KT6 6JZ). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to before 1900 and council tax band C. At 59 m² this is the 2nd smallest of 6 units on EPC record in the building, where floor areas span 51–106 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (July 2025) shows an E (score 49), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 69), a 2-band jump.

At 59 m² it sits well below the postcode median (197 m² across 15 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). Last sold in June 2017, so it's been off the market for around 9 years. Across the public record there are 6 sales, relatively high churn for a single property. Across 1997–2017, sale prices on this property compounded at 6.5% per year. Today's modelled estimate of £522,000 is 11.1% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£740/sq ft) was about 132.5% above the typical sold price in the postcode.