24 Andrewsfield, Welwyn Garden City, AL7 2PQ

24 Andrewsfield is a semi-detached house in Welwyn Garden City (AL7 2PQ). It has a recorded floor area of 31 m² (around 330 sq ft), construction records dating it to 1983-1990 and council tax band B. At 31 m² this is the 36th smallest of 41 units on EPC record in the building, where floor areas span 24–58 m². The building's EPC ratings span E to C across 41 units on file. The latest certificate (April 2010) shows a D (score 60), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 76). Main heating runs on to be used only when there is no heating/hot. The latest certificate is from April 2010, so improvements made since then won't be reflected.

Held since January 2002 — that's 24 years off the open market, well above the local norm. Sale prices here have outpaced England HPI: 6.9% per year against 0% for the wider region. Today's modelled estimate of £143,000 sits 186% above the 2002 sale of £50,000. On a £-per-square-foot basis, the last sale (£151/sq ft) was about 47.3% below the postcode norm. At 31 m² it's 22.8% larger than the typical home in the postcode (25 m² median across 40 EPCs).