The Triangle, Flat 21, Goswell Road, Islington, London, EC1V 0AF

The Triangle is a two-bedroom mid-terrace house in Islington, London, London (EC1V 0AF). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 1967-1975 and council tax band D. At 71 m² this is the 17th smallest of 25 units on EPC record in The Triangle, where floor areas span 36–88 m². The building's EPC ratings span E to C, with this unit at the top. Other recorded features include a balcony. The latest certificate (June 2022) shows a C (score 70). The rating has held steady at C across 2 certificates since April 2012. Between certificates, hot-water efficiency went from Poor to Average and lighting went from Poor to Very Good; while window efficiency dropped from Good to Average.

Held since July 2004 — that's 22 years off the open market, well above the local norm. Across 1997–2004, sale prices on this property compounded at 17.1% per year. Today's modelled estimate of £457,000 sits 120.8% above the 2004 sale of £207,000. On a £-per-square-foot basis, the last sale (£271/sq ft) was about 19.8% below the postcode norm.