6a, Rosegrove Lane, Burnley, BB12 6HX

6a is a mid-terrace house in Burnley (BB12 6HX). It has a recorded floor area of 35 m² (around 377 sq ft), construction records dating it to 1900-1929 and council tax band A. At 35 m² this is the 4th smallest of 20 units on EPC record in the building, where floor areas span 33–110 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (April 2022) shows a C (score 71). When first surveyed in May 2010 the rating was F, the property has climbed 3 bands since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Very Poor to Average and hot-water efficiency went from Very Poor to Good.

Held since September 2010 — that's 16 years off the open market, well above the local norm. Today's modelled estimate of £104,000 sits 108% above the 2010 sale of £50,000. On a £-per-square-foot basis, the last sale (£133/sq ft) was about 79.7% above the typical sold price in the postcode. At 35 m² it sits well below the postcode median (73 m² across 19 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 84% of similar EPCs).