1b, Poets Road, London, N5 2SL

1b is an end-of-terrace house in London (N5 2SL). It has a recorded floor area of 57 m² (around 614 sq ft) and construction records dating it to 1900-1929. The latest certificate (October 2019) shows a D (score 63), on the cusp of jumping into the C band. Earlier certificates rated it C (July 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Poor; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 75). At 57 m² this is the 11th smallest of 14 units on EPC record in the building, where floor areas span 43–83 m². The building's EPC ratings span E to C across 14 units on file.

It hasn't traded since June 2003, a hold of 23 years that's notably long for the area. Across 1997–2003, sale prices on this property compounded at 10.5% per year. Today's modelled estimate of £563,000 sits 168.1% above the 2003 sale of £210,000. On a £-per-square-foot basis, the last sale (£342/sq ft) was about 15.6% below the postcode norm. At 57 m² it's 28.7% smaller than the typical home in the postcode (80 m² median across 47 EPCs).