Flat 1, 157 London Road, High Wycombe, HP11 1BT

Flat 1 is an end-of-terrace house in High Wycombe (HP11 1BT). It has a recorded floor area of 18 m² (around 194 sq ft) and construction records dating it to before 1900. At 18 m² this is the smallest unit on EPC record across the building (18–28 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (67 versus a best of 75). The latest certificate (March 2021) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 74).

It hasn't traded since January 2006, a hold of 21 years that's notably long for the area. At 18 m² it sits well below the postcode median (55 m² across 53 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £342,000 is 22.1% above the 2006 sale price. On a £-per-square-foot basis, the last sale (£1,445/sq ft) was about 412.7% above the typical sold price in the postcode.