9 Athelstan Walk North, Welwyn Garden City, AL7 3SH

9 Athelstan Walk North is a one-bedroom end-of-terrace house in Welwyn Garden City (AL7 3SH). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1967-1975 and council tax band B. At 45 m² this is the 3rd smallest of 35 units on EPC record in the building, where floor areas span 40–58 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (March 2014) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 76). The latest certificate is from March 2014, so improvements made since then won't be reflected.

Sale prices here have outpaced England HPI: 5.6% per year against 0% for the wider region. Today's modelled estimate of £216,000 is 13.7% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£392/sq ft) was about 76.2% above the typical sold price in the postcode. At 45 m² it's 18.2% smaller than the typical home in the postcode (55 m² median across 34 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Sold September 2019 for £190,000. Across the public record there are 4 sales, relatively high churn for a single property.