17b, Iden Street, Eastbourne, BN22 9HL

17b is a mid-terrace house in Eastbourne (BN22 9HL). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1967-1975 and council tax band A. At 45 m² this is the smallest unit on EPC record across the building (45–120 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 (50 versus a best of 77). The latest certificate (October 2016) shows an E (score 50), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since February 2011. Between certificates, hot-water efficiency went from Very Poor to Poor; while window efficiency dropped from Good to Average and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 76), a 2-band jump. Main heating runs on electricity.

Held since May 1998 — that's 28 years off the open market, well above the local norm. 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 £127,000 sits 398% above the 1998 sale of £25,500. On a £-per-square-foot basis, the last sale (£53/sq ft) was about 64.5% below the postcode norm.