28 The Cloisters, Welwyn Garden City, AL8 6DX

28 The Cloisters is a mid-terrace house in Welwyn Garden City (AL8 6DX). It has a recorded floor area of 27 m² (around 291 sq ft), construction records dating it to 1930-1949 and council tax band B. At 27 m² this is the 2nd smallest of 17 units on EPC record in the building, where floor areas span 25–49 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (January 2020) shows a C (score 73). The rating has held steady at C across 2 certificates since January 2010. Between certificates, window efficiency went from Poor to Average and lighting went from Average to Very Good; while hot-water efficiency dropped from Average to Poor. The recommended improvements would push it to B (score 83). Main heating runs on electricity.

It hasn't traded since November 2002, a hold of 24 years that's notably long for the area. Across 2000–2002, sale prices on this property compounded at 1.5% per year. Today's modelled estimate of £167,000 sits 156.9% above the 2002 sale of £65,000. On a £-per-square-foot basis, the last sale (£224/sq ft) was about 23.1% below the postcode norm. At 27 m² it's 18.2% smaller than the typical home in the postcode (33 m² median across 16 EPCs).