97a, Johnston Street, Blackburn, BB2 1HY

97a is a mid-terrace house in Blackburn (BB2 1HY). It has a recorded floor area of 51 m² (around 549 sq ft) and construction records dating it to 1900-1929. At 51 m² this is the smallest unit on EPC record across the building (51–202 m²). The building's EPC ratings span F to C across 43 units on file. The latest certificate (May 2023) shows an E (score 42), well below the UK norm with real room to improve. Earlier certificates rated it D (April 2014); the latest reading is one band lower. Between certificates, roof efficiency went from Very Poor to Very Good and lighting went from Average to Very Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would push it to D (score 66). Main heating runs on electricity.

At 51 m² it sits well below the postcode median (76 m² across 42 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). Across 2002–2015, sale prices on this property compounded at 7.8% per year. Today's modelled estimate of £121,000 is 34.4% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£164/sq ft) was about 518.1% above the typical sold price in the postcode. Last sold in April 2015, so it's been off the market for around 11 years.