11 Andrewsfield, Welwyn Garden City, AL7 2PQ

11 Andrewsfield is a semi-detached house in Welwyn Garden City (AL7 2PQ). It has a recorded floor area of 26 m² (around 280 sq ft), construction records dating it to 1991-1995 and council tax band B. At 26 m² this is the 32nd 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, with this unit at the top. The latest certificate (February 2021) shows a C (score 73). The rating has held steady at C across 2 certificates since February 2010. Between certificates, window efficiency went from Very Poor to Average and lighting went from Poor to Very Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Poor to Very Poor. Main heating runs on electricity.

Sale prices here have outpaced England HPI: 5.9% per year against 0% for the wider region. Today's modelled estimate of £132,000 is 28.2% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£368/sq ft) was about 28.8% above the typical sold price in the postcode. Last sale on file: £103,000 in March 2021. Across the public record there are 4 sales, relatively high churn for a single property. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.