3 The Colonnade, Marina, St Leonards On Sea, TN38 0BG

3 The Colonnade is a one-bedroom mid-terrace house in St Leonards On Sea (TN38 0BG). It has a recorded floor area of 37 m² (around 398 sq ft) and construction records dating it to before 1900. The latest certificate (October 2018) shows a C (score 71). When first surveyed in October 2008 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, hot-water efficiency went from Average to Good and main heating went from Poor to Average; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 81). Main heating runs on electricity. At 37 m² this is the 6th smallest of 22 units on EPC record in the building, where floor areas span 30–84 m². The building's EPC ratings span F to B across 22 units on file.

It hasn't traded since February 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £135,000 sits 80% above the 2007 sale of £75,000. At 37 m² it's 19.6% smaller than the typical home in the postcode (46 m² median across 21 EPCs).