Flat 4, 3 St Pauls Square, Southport, PR8 1NQ

Flat 4 is a semi-detached house in Southport (PR8 1NQ). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to before 1900 and council tax band A. At 67 m² this is the 6th smallest of 8 units on EPC record in the building, where floor areas span 53–87 m². The building's EPC ratings span D to C, with this unit at the bottom. The latest certificate (December 2013) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2009. Between certificates, window efficiency went from Average to Good and main heating went from Average to Good; while wall efficiency dropped from Poor to Very Poor and lighting dropped from Average to Very Poor. The recommended improvements would push it to C (score 78). The latest certificate is from December 2013, so improvements made since then won't be reflected.

It hasn't traded since June 2000, a hold of 26 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 £128,000 sits 204.8% above the 2000 sale of £42,000. On a £-per-square-foot basis, the last sale (£58/sq ft) was about 58.2% below the postcode norm.