12 Cockerham Lane, Barnsley, S75 1AZ

12 Cockerham Lane is a semi-detached house in Barnsley (S75 1AZ). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 1950-1966 and council tax band A. The latest certificate (November 2025) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2010. Between certificates, hot-water efficiency went from Average to Good and lighting went from Very Poor to Poor; while wall efficiency dropped from Average to Poor and window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 71). At 42 m² this is the 22nd smallest of 27 units on EPC record in the building, where floor areas span 31–49 m². The building's EPC ratings span E to C across 27 units on file.

Today's modelled estimate of £107,000 sits 143.2% above the 2012 sale of £44,000. On a £-per-square-foot basis, the last sale (£97/sq ft) was about 16.2% below the postcode norm. At 42 m² it's 16.7% larger than the typical home in the postcode (36 m² median across 26 EPCs). On the market in June 2012 and unlisted since — roughly 14 years.