Flat 1, 23 Boscombe Road, Southend On Sea, SS2 5JE

Flat 1 is a one-bedroom end-of-terrace house in Southend On Sea (SS2 5JE). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to 1900-1929 and council tax band A. At 40 m² this is the smallest unit on EPC record across the building (40–63 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 (40 versus a best of 70). The latest certificate (January 2019) shows an E (score 40), well below the UK norm with real room to improve. When first surveyed in October 2013 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Average to Good and lighting went from Poor to Very Good. The recommended improvements would lift it to C (score 75), a 2-band jump. Main heating runs on electricity.

It hasn't traded since February 1999, a hold of 27 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. Today's modelled estimate of £143,000 sits 429.6% above the 1999 sale of £27,000. On a £-per-square-foot basis, the last sale (£63/sq ft) was about 57.6% below the postcode norm. At 40 m² it sits well below the postcode median (99 m² across 28 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs).