109a, St Marks Road, Enfield, EN1 1BJ

109a is a one-bedroom mid-terrace house in Enfield (EN1 1BJ). It has a recorded floor area of 51 m² (around 549 sq ft) and construction records dating it to 1900-1929. At 51 m² this is the 12th smallest of 42 units on EPC record in the building, where floor areas span 35–138 m². The building's EPC ratings span E to C across 42 units on file. Period features are noted in the property record. The latest certificate (January 2016) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 75). The latest certificate is from January 2016, so improvements made since then won't be reflected.

At 51 m² it sits well below the postcode median (73 m² across 41 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £283,000 is 16.7% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£442/sq ft) was about 87.3% above the typical sold price in the postcode. On the market in March 2016 and unlisted since — roughly 10 years.