Bonnington House, Flat 103, Ayley Croft, Enfield, EN1 1XU

Bonnington House is a two-bedroom end-of-terrace house in Enfield (EN1 1XU). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (January 2022) shows an E (score 39), well below the UK norm with real room to improve. When first surveyed in March 2009 the rating was F, the property has climbed 1 band since. Between certificates, lighting went from Poor to Very Good and main heating went from Poor to Average; while wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would lift it to C (score 75), a 2-band jump. Main heating runs on electricity. At 59 m² this is the 25th smallest of 33 units on EPC record in Bonnington House, where floor areas span 32–66 m². The building's EPC ratings span F to C across 33 units on file.

It hasn't traded since January 2002, a hold of 24 years that's notably long for the area. At 59 m² it's 29.7% larger than the typical home in the postcode (46 m² median across 32 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £236,000 sits 254.9% above the 2002 sale of £66,500. On a £-per-square-foot basis, the last sale (£105/sq ft) was about 34.5% below the postcode norm.