18 20, Flat B, Friern Barnet Road, London, N11 1NA

18 20 is a mid-terrace house in London (N11 1NA). It has a recorded floor area of 35 m² (around 377 sq ft) and construction records dating it to 1900-1929. At 35 m² this is the smallest unit on EPC record across 18 20 (35–53 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (November 2021) shows a C (score 69), just inside the C band. The rating has held steady at C across 12 certificates since December 2008. Between certificates, lighting went from Very Poor to Good; while wall efficiency dropped from Good to Poor and window efficiency dropped from Good to Average.

It hasn't traded since July 1999, a hold of 27 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 £308,000 sits 431% above the 1999 sale of £58,000. At 35 m² it sits well below the postcode median (58 m² across 20 EPCs), making it one of the more compact homes locally.