75a, Johnston Street, Blackburn, BB2 1HD

75a is an end-of-terrace house in Blackburn (BB2 1HD). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to 1950-1966 and council tax band A. At 35 m² this is the smallest unit on EPC record across the building (35–80 m²). The building's EPC ratings span F to C across 19 units on file. The latest certificate (September 2021) shows an E (score 48), well below the UK norm with real room to improve. When first surveyed in September 2021 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good. The recommended improvements would lift it to C (score 71), a 2-band jump. Main heating runs on electricity.

Untraded for 19 years, with the last transfer in April 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 35 m² it sits well below the postcode median (70 m² across 18 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs). Across 1998–2007, sale prices on this property compounded at 15.6% per year. Today's modelled estimate of £102,000 is 36% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£199/sq ft) was about 181.5% above the typical sold price in the postcode.