Flat 3, 1 Highbury Place, Islington, London, N5 1QZ

Flat 3 is a one-bedroom end-of-terrace house in Islington, London, London (N5 1QZ). It has a recorded floor area of 50 m² (around 538 sq ft) and construction records dating it to before 1900. The latest certificate (August 2019) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in November 2008 the rating was F, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 75). At 50 m² this is the 4th smallest of 6 units on EPC record in the building, where floor areas span 45–90 m². The building's EPC ratings span E to C across 6 units on file. Period features are noted in the property record.

It hasn't traded since January 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £509,000 sits 75.5% above the 2009 sale of £290,000. At 50 m² it's 20.6% smaller than the typical home in the postcode (63 m² median across 37 EPCs).