3 Masons Yard, Islington, London, EC1V 8DX

3 Masons Yard is a one-bedroom mid-terrace house in Islington, London, London (EC1V 8DX). It has a recorded floor area of 62 m² (around 667 sq ft), construction records dating it to 2003-2006 and council tax band E. The latest certificate (December 2020) shows a C (score 69), just inside the C band. Earlier certificates rated it B (May 2012); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while window efficiency dropped from Good to Average. Main heating runs on electricity. At 62 m² this is the 13th smallest of 23 units on EPC record in the building, where floor areas span 44–111 m². The building's EPC ratings span E to B across 23 units on file.

Held since August 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 2001–2007, sale prices on this property compounded at 7% per year. Today's modelled estimate of £559,000 sits 57.5% above the 2007 sale of £355,000. On a £-per-square-foot basis, the last sale (£532/sq ft) was about 38.5% above the typical sold price in the postcode.