Flat, 150 Broadway, Leigh On Sea, SS9 1AA

Flat is an end-of-terrace house in Leigh On Sea (SS9 1AA). It has a recorded floor area of 51 m² (around 547 sq ft), construction records dating it to 1900-1929 and council tax band A. At 51 m² this is the 5th smallest of 20 units on EPC record in the building, where floor areas span 36–98 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 86). The latest certificate (March 2009) shows an E (score 47), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 55). The latest certificate is from March 2009, so improvements made since then won't be reflected.

Held since December 1996 — that's 29 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. Today's modelled estimate of £241,000 sits 588.6% above the 1996 sale of £35,000. On a £-per-square-foot basis, the last sale (£64/sq ft) was about 87.2% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 84% of similar EPCs).