Blythewood Court, Flat 6, 159 Carshalton Road, Sutton, SM1 4ND

Blythewood Court is a one-bedroom detached house in Sutton (SM1 4ND). It has a recorded floor area of 57 m² (around 614 sq ft) and construction records dating it to 1900-1929. At 57 m² this is the 4th smallest of 7 units on EPC record in Blythewood Court, where floor areas span 23–65 m². The building's EPC ratings span E to C across 7 units on file. The latest certificate (April 2019) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75).

Held since July 2000 — that's 26 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 £293,000 sits 285.5% above the 2000 sale of £76,000. On a £-per-square-foot basis, the last sale (£124/sq ft) was about 51.1% below the postcode norm.