21 Heddon Court, Cockfosters Road, Barnet, EN4 0DE

21 Heddon Court is a two-bedroom mid-terrace house in Barnet (EN4 0DE). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (July 2019) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since July 2009. Between certificates, window efficiency went from Very Poor to Average; while lighting dropped from Good to Average. The recommended improvements would push it to C (score 73). At 51 m² this is the 3rd smallest of 26 units on EPC record in the building, where floor areas span 34–107 m². The building's EPC ratings span E to C across 26 units on file.

It hasn't traded since June 1997, a hold of 29 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. Today's modelled estimate of £331,000 sits 429.6% above the 1997 sale of £62,500. On a £-per-square-foot basis, the last sale (£114/sq ft) was about 51.5% below the postcode norm. At 51 m² it's 27.1% smaller than the typical home in the postcode (70 m² median across 25 EPCs).