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

23a is a semi-detached house in Leigh On Sea (SS9 1DX). It has a recorded floor area of 38 m² (around 409 sq ft) and construction records dating it to 1900-1929. The latest certificate (May 2014) shows a C (score 69), just inside the C band. When first surveyed in October 2012 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency dropped from Average to Poor and lighting dropped from Very Good to Good. The latest certificate is from May 2014, so improvements made since then won't be reflected. At 38 m² this is the 3rd 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.

It hasn't traded since July 2005, a hold of 21 years that's notably long for the area. Across 1996–2005, sale prices on this property compounded at 16.7% per year. Today's modelled estimate of £248,000 sits 52.6% above the 2005 sale of £162,500. On a £-per-square-foot basis, the last sale (£397/sq ft) was about 32% above the typical sold price in the postcode. At 38 m² it sits well below the postcode median (78 m² across 46 EPCs), making it one of the more compact homes locally.