Flat 1, 6 Marlborough Road, Southport, PR9 0RA

Flat 1 is a semi-detached house in Southport (PR9 0RA). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to before 1900 and council tax band A. At 73 m² this is the 7th smallest of 11 units on EPC record in the building, where floor areas span 54–152 m². The building's EPC ratings span E to B, with this unit at the bottom. The latest certificate (September 2014) shows an E (score 50), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 74), a 2-band jump. The latest certificate is from September 2014, so improvements made since then won't be reflected.

Held since July 2000 — that's 26 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 £125,000 sits 220.9% above the 2000 sale of £38,950. On a £-per-square-foot basis, the last sale (£50/sq ft) was about 55.4% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs).