300a, Carshalton Road, Carshalton, SM5 3QB

300a is a one-bedroom semi-detached house in Carshalton (SM5 3QB). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (June 2022) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since July 2009. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 72). At 40 m² this is the 3rd smallest of 10 units on EPC record in the building, where floor areas span 38–106 m². The building's EPC ratings span E to B across 10 units on file.

Held since September 2004 — that's 22 years off the open market, well above the local norm. Today's modelled estimate of £226,000 sits 126% above the 2004 sale of £100,000. At 40 m² it sits well below the postcode median (61 m² across 9 EPCs), making it one of the more compact homes locally. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.