225a, Hatfield Road, St Albans, AL1 4TB

225a is an end-of-terrace house in St Albans (AL1 4TB). It has a recorded floor area of 85 m² (around 915 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (March 2021) shows a D (score 57), a step below the typical UK home. The rating has held steady at D across 2 certificates since October 2008. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good; while window efficiency dropped from Poor to Very Poor and hot-water efficiency dropped from Very Good to Good. At 85 m² this is the 23rd smallest of 24 units on EPC record in the building, where floor areas span 41–90 m². The building's EPC ratings span F to B across 24 units on file.

At 85 m² the property is well over the postcode median (55 m² across 23 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £385,000 sits 384900% above the 2023 sale of £100. On a £-per-square-foot basis, the last sale (£0/sq ft) was about 100% below the postcode norm. Last sale on file: £100 in May 2023.