12a, Balaclava Road, Surbiton, KT6 5PN

12a is a one-bedroom semi-detached house in Surbiton (KT6 5PN). It has a recorded floor area of 36 m² (around 388 sq ft), construction records dating it to 1930-1949 and council tax band C. Tenure is freehold. The latest certificate (April 2021) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since January 2009. Between certificates, lighting went from Very Poor to Very Good. At 36 m² this is the 9th smallest of 70 units on EPC record in the building, where floor areas span 27–227 m². The building's EPC ratings span F to A across 70 units on file.

Untraded for 25 years, with the last transfer in September 2001. Today's modelled estimate of £280,000 sits 89.2% above the 2001 sale of £148,000. On a £-per-square-foot basis, the last sale (£382/sq ft) was about 19% above the typical sold price in the postcode. At 36 m² it sits well below the postcode median (69 m² across 69 EPCs), making it one of the more compact homes locally.