Bonnington House, Flat 73, Ayley Croft, Enfield, EN1 1XU

Bonnington House is a mid-terrace house in Enfield (EN1 1XU). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to 1967-1975 and council tax band A. At 64 m² this is the 30th 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, with this unit at the top. The latest certificate (June 2023) shows a C (score 74). The rating has held steady at C across 2 certificates since February 2009. Between certificates, wall efficiency went from Very Poor to Poor and main heating went from Average to Good; while hot-water efficiency dropped from Average to Poor and lighting dropped from Very Good to Average.

It hasn't traded since May 1998, a hold of 28 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 64 m² the property is well over the postcode median (46 m² across 32 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £226,000 sits 804% above the 1998 sale of £25,000. On a £-per-square-foot basis, the last sale (£36/sq ft) was about 77.3% below the postcode norm.