3a, Mountgrove Road, Islington, London, N5 2LU

3a is a mid-terrace house in Islington, London, London (N5 2LU). It has a recorded floor area of 48 m² (around 517 sq ft) and construction records dating it to before 1900. At 48 m² this is the 4th 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, with this unit at the top. The latest certificate (April 2025) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since November 2012. Between certificates, lighting went from Poor to Very Good.

Untraded for 19 years, with the last transfer in November 2007. 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 10.5% per year. Today's modelled estimate of £531,000 sits 83.1% above the 2007 sale of £290,000. On a £-per-square-foot basis, the last sale (£561/sq ft) was about 28% above the typical sold price in the postcode. At 48 m² it sits well below the postcode median (78 m² across 22 EPCs), making it one of the more compact homes locally.