15a, Lascotts Road, London, N22 8JG

15a is a mid-terrace house in London (N22 8JG). It has a recorded floor area of 59 m² (around 635 sq ft) and construction records dating it to 1900-1929. At 59 m² this is the 14th smallest of 20 units on EPC record in the building, where floor areas span 12–130 m². The building's EPC ratings span E to B, with this unit at the bottom. On EPC score it ranks last in the building (47 versus a best of 81). The latest certificate (February 2020) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it D (February 2009); the latest reading is one band lower. Between certificates, window efficiency went from Very Poor to Poor and main heating went from Average to Good; while hot-water efficiency dropped from Average to Poor. The recommended improvements would lift it to C (score 78), a 2-band jump.

It hasn't traded since May 2000, a hold of 26 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £362,000 sits 244.8% above the 2000 sale of £105,000. On a £-per-square-foot basis, the last sale (£165/sq ft) was about 50.4% below the postcode norm.