54d, Flat 1, Northampton Road, Wellingborough, NN8 3HQ

54d is a mid-terrace house in Wellingborough (NN8 3HQ). It has a recorded floor area of 85 m² (around 915 sq ft) and construction records dating it to 2003-2006. At 85 m² this is the largest unit on EPC record across 54d (49–85 m²). The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (80 versus a worst of 63). The latest certificate (February 2016) shows a C (score 80), near the top of the C band. When first surveyed in July 2014 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, window efficiency went from Average to Good and hot-water efficiency went from Average to Good. The latest certificate is from February 2016, so improvements made since then won't be reflected.

At 85 m² the property is well over the postcode median (63 m² across 17 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs).