23b, Grand Parade, Leigh On Sea, SS9 1DX

23b is a semi-detached house in Leigh On Sea (SS9 1DX). It has a recorded floor area of 42 m² (around 452 sq ft) and construction records dating it to 1930-1949. The latest certificate (March 2017) shows an E (score 48), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 64). At 42 m² this is the 5th smallest of 47 units on EPC record in the building, where floor areas span 34–239 m². The building's EPC ratings span F to B across 47 units on file.

Untraded for 24 years, with the last transfer in April 2002. Across 1995–2002, sale prices on this property compounded at 14.6% per year. Today's modelled estimate of £220,000 sits 238.5% above the 2002 sale of £65,000. On a £-per-square-foot basis, the last sale (£144/sq ft) was about 52.8% below the postcode norm. At 42 m² it sits well below the postcode median (78 m² across 46 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs).