64a, Ash Grove, Chorley, PR7 3HZ

64a is a semi-detached house in Chorley (PR7 3HZ). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1950-1966 and council tax band A. At 47 m² this is the smallest unit on EPC record across the building (47–123 m²). The building's EPC ratings span F to C across 33 units on file. The latest certificate (October 2018) shows an E (score 42), well below the UK norm with real room to improve. When first surveyed in November 2010 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Average and roof efficiency went from Good to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to D (score 68). Main heating runs on electricity.

Untraded for 21 years, with the last transfer in June 2005. At 47 m² it sits well below the postcode median (75 m² across 32 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 78% of similar EPCs). On a £-per-square-foot basis, the last sale (£235/sq ft) was about 63.3% above the typical sold price in the postcode.