121 Northstand Apartments, Highbury Stadium Square, Islington, London, N5 1FL

121 Northstand Apartments is a one-bedroom mid-terrace house in Islington, London, London (N5 1FL). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 2003-2006 and council tax band D. The latest certificate (March 2020) returns a B (score 83), comfortably above the UK average. The rating has held steady at B across 2 certificates since October 2008. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. At 51 m² this is the 21st smallest of 71 units on EPC record in the building, where floor areas span 41–104 m². The building's EPC ratings span C to B, with this unit at the top. Other recorded features include a balcony.

On a £-per-square-foot basis, the last sale (£820/sq ft) was about 20.1% above the typical sold price in the postcode. On the market in April 2014 and unlisted since — roughly 12 years. At 51 m² it's 15.7% smaller than the typical home in the postcode (61 m² median across 70 EPCs).