Flat 1a, 34 Grove Road, Surbiton, KT6 4BZ

Flat 1a is a one-bedroom mid-terrace house in Surbiton (KT6 4BZ). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 1950-1966 and council tax band C. At 48 m² this is the smallest unit on EPC record across the building (48–104 m²). The building's EPC ratings span E to C across 5 units on file. The latest certificate (February 2019) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in January 2009 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Average and hot-water efficiency went from Poor to Good. The recommended improvements would push it to C (score 72).

Held since August 1995 — that's 31 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £311,000 sits 498.1% above the 1995 sale of £52,000. On a £-per-square-foot basis, the last sale (£101/sq ft) was about 69.8% below the postcode norm. At 48 m² it's 28.4% smaller than the typical home in the postcode (67 m² median across 23 EPCs). One planning record on file: partial demolition refused in 2024.