Tompion House, Flat 77, Percival Street, Islington, London, EC1V 0HX

Tompion House is a two-bedroom mid-terrace house in Islington, London, London (EC1V 0HX). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1950-1966 and council tax band C. At 57 m² this is the 12th smallest of 24 units on EPC record in Tompion House, where floor areas span 29–148 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (April 2021) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since December 2010. Between certificates, lighting went from Good to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 83).

11 years since the last transfer (July 2015). Across the public record there are 4 sales, relatively high churn for a single property. Across 2002–2015, sale prices on this property compounded at 8.5% per year. On a £-per-square-foot basis, the last sale (£850/sq ft) was about 27.5% above the typical sold price in the postcode.