Blackshaw House, Flat 47, Thornbank North, Bolton, BL3 5NU

Blackshaw House is a two-bedroom semi-detached house in Bolton (BL3 5NU). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (January 2021) shows an E (score 50), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2020); the latest reading is one band lower. Between certificates, window efficiency dropped from Good to Average and main heating dropped from Average to Very Poor. The recommended improvements would lift it to B (score 82), a 3-band jump. Main heating runs on electricity. At 40 m² this is the 4th smallest of 50 units on EPC record in Blackshaw House, where floor areas span 26–70 m². The building's EPC ratings span F to C across 50 units on file.

Held since May 2006 — that's 20 years off the open market, well above the local norm. Today's modelled estimate of £102,000 sits 240% above the 2006 sale of £30,000. At 40 m² it sits well below the postcode median (60 m² across 49 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 71% of similar EPCs).