24a, Shenley Road, Borehamwood, WD6 1DR

24a is a three-bedroom mid-terrace house in Borehamwood (WD6 1DR). It has a recorded floor area of 14 m² (around 151 sq ft), construction records dating it to 1950-1966 and council tax band C. At 14 m² this is the smallest unit on EPC record across the building (14–91 m²). The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (78 versus a worst of 42). The latest certificate (October 2024) shows a C (score 78), near the top of the C band. When first surveyed in September 2014 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Good to Very Good.

Held since May 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 £442,000 sits 136.4% above the 2000 sale of £187,000. On a £-per-square-foot basis, the last sale (£1,241/sq ft) was about 434.3% above the typical sold price in the postcode. At 14 m² it sits well below the postcode median (70 m² across 12 EPCs), making it one of the more compact homes locally.