66a, Station Lane, Old Whittington, Chesterfield, S41 9NS

66a is an end-of-terrace house in Old Whittington, Chesterfield, Chesterfield (S41 9NS). It has a recorded floor area of 63 m² (around 675 sq ft), construction records dating it to 1930-1949 and council tax band A. At 63 m² this is the 19th smallest of 23 units on EPC record in the building, where floor areas span 38–70 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (49 versus a best of 78). The latest certificate (June 2009) shows an E (score 49), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 66). The latest certificate is from June 2009, so improvements made since then won't be reflected.

It hasn't traded since January 2008, a hold of 18 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 63 m² the property is well over the postcode median (44 m² across 22 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.