131a, Flat 1, East Barnet Road, Barnet, EN4 8RF

131a is an end-of-terrace house in Barnet (EN4 8RF). It has a recorded floor area of 51 m² (around 549 sq ft) and construction records dating it to 1900-1929. The latest certificate (January 2023) shows an E (score 40), well below the UK norm with real room to improve. When first surveyed in July 2015 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, hot-water efficiency went from Very Poor to Poor and lighting went from Average to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to D (score 58). Main heating runs on electricity. At 51 m² this is the 3rd smallest of 5 units on EPC record in 131a, where floor areas span 37–59 m². The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (40 versus a best of 55).

At 51 m² it's 22.7% smaller than the typical home in the postcode (66 m² median across 41 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. One historical planning record sits against the property in 2012.