777a, Whalley New Road, Blackburn, BB1 9BE

777a is a two-bedroom end-of-terrace house in Blackburn (BB1 9BE). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (June 2017) shows a G (score 4), near the bottom of the EPC scale. The recommended improvements would push it to F (score 37). Main heating runs on electricity. At 74 m² this is the 5th smallest of 10 units on EPC record in the building, where floor areas span 38–139 m². The building's EPC ratings span G to C, with this unit at the bottom. On EPC score it ranks last in the building (4 versus a best of 73).

Held since April 1995 — that's 31 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. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £119,000 sits 376% above the 1995 sale of £25,000. On a £-per-square-foot basis, the last sale (£31/sq ft) was about 73.9% below the postcode norm.