15 Ennerdale Avenue, Blackburn, BB1 1QD

15 Ennerdale Avenue is an end-of-terrace house in Blackburn (BB1 1QD). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to 1967-1975 and council tax band A. The latest certificate (July 2023) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in November 2010 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Poor to Good, lighting went from Good to Very Good and main heating went from Poor to Good; while wall efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 81), a 2-band jump.

At 77 m² the property is well over the postcode median (43 m² across 35 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). Across 2006–2016, sale prices on this property compounded at -4.1% per year. Today's modelled estimate of £119,000 sits 116.4% above the 2016 sale of £55,000. On a £-per-square-foot basis, the last sale (£66/sq ft) was about 40.3% below the postcode norm. On the market in July 2016 and unlisted since — roughly 10 years.