25a, Mountgrove Road, Islington, London, N5 2LU

25a is a mid-terrace house in Islington, London, London (N5 2LU). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to before 1900 and council tax band C. At 55 m² this is the 7th smallest of 23 units on EPC record in the building, where floor areas span 43–173 m². The building's EPC ratings span E to C across 23 units on file. The latest certificate (April 2018) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 74).

It hasn't traded since May 2011, a hold of 15 years that's notably long for the area. Across 1996–2011, sale prices on this property compounded at 12% per year. Today's modelled estimate of £639,000 sits 66% above the 2011 sale of £385,000. On a £-per-square-foot basis, the last sale (£650/sq ft) was about 49.2% above the typical sold price in the postcode. At 55 m² it's 29.3% smaller than the typical home in the postcode (78 m² median across 22 EPCs).