Avenell Mansions, Flat 1, Avenell Road, Islington, London, N5 1BN

Avenell Mansions is an end-of-terrace house in Islington, London, London (N5 1BN). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to before 1900 and council tax band C. At 51 m² this is the smallest unit on EPC record across Avenell Mansions (51–78 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (51 versus a best of 78). The latest certificate (January 2013) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 79), a 2-band jump. The latest certificate is from January 2013, so improvements made since then won't be reflected.

At 51 m² it's 19% smaller than the typical home in the postcode (63 m² median across 23 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1997–2013, sale prices on this property compounded at 10.2% per year. Today's modelled estimate of £431,000 sits 65.8% above the 2013 sale of £259,995. On a £-per-square-foot basis, the last sale (£474/sq ft) was about 36.6% above the typical sold price in the postcode. On the market in June 2013 and unlisted since — roughly 13 years.