377a, Scot Lane, Wigan, WN5 0PN

377a is an end-of-terrace house in Wigan (WN5 0PN). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to 1983-1990 and council tax band A. The latest certificate (August 2021) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in December 2009 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good and hot-water efficiency went from Very Poor to Poor; while lighting dropped from Poor to Very Poor. The recommended improvements would push it to C (score 78). Main heating runs on electricity. At 63 m² this is the 13th smallest of 33 units on EPC record in the building, where floor areas span 43–153 m². The building's EPC ratings span E to C across 33 units on file.

Today's modelled estimate of £114,000 is 72.9% below the 2016 sale of £420,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£619/sq ft) was about 646.7% above the typical sold price in the postcode. On the market in April 2016 and unlisted since — roughly 10 years.