42a, Shenley Road, Borehamwood, WD6 1DR

42a is a mid-terrace house in Borehamwood (WD6 1DR). It has a recorded floor area of 53 m² (around 575 sq ft), construction records dating it to 1930-1949 and council tax band B. At 53 m² this is the 3rd smallest of 13 units on EPC record in the building, where floor areas span 14–91 m². The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (March 2010) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 59). The latest certificate is from March 2010, so improvements made since then won't be reflected.

Held since July 2001 — that's 25 years off the open market, well above the local norm. At 53 m² it's 23.1% smaller than the typical home in the postcode (70 m² median across 12 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £324,000 sits 80% above the 2001 sale of £180,000. On a £-per-square-foot basis, the last sale (£313/sq ft) was about 34.8% above the typical sold price in the postcode.