Grimthorpe House, Flat 2, Percival Street, Islington, London, EC1V 0BS

Grimthorpe House is a three-bedroom mid-terrace house in Islington, London, London (EC1V 0BS). It has a recorded floor area of 70 m² (around 753 sq ft), construction records dating it to 1967-1975 and council tax band D. The latest certificate (June 2022) shows a C (score 73). The rating has held steady at C across 2 certificates since June 2012. Between certificates, wall efficiency dropped from Average to Poor. At 70 m² this is the 18th smallest of 31 units on EPC record in Grimthorpe House, where floor areas span 26–89 m². The building's EPC ratings span D to B across 31 units on file. Other recorded features include a balcony.

It hasn't traded since June 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 70 m² the property is well over the postcode median (38 m² across 30 EPCs), placing it in the larger end of the local stock. Across 2002–2007, sale prices on this property compounded at 6.7% per year. Today's modelled estimate of £469,000 sits 73.7% above the 2007 sale of £270,000. On a £-per-square-foot basis, the last sale (£358/sq ft) was about 35.2% below the postcode norm.