21 Blenheim Court, Sandiacre, Nottingham, NG10 5PQ

21 Blenheim Court is a one-bedroom end-of-terrace house in Sandiacre, Nottingham, Nottingham (NG10 5PQ). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 1983-1990 and council tax band A. At 48 m² this is the 10th smallest of 15 units on EPC record in the building, where floor areas span 35–62 m². The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (76 versus a worst of 44). The latest certificate (March 2021) shows a C (score 76), near the top of the C band. When first surveyed in November 2009 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Poor to Average, hot-water efficiency went from Poor to Good and lighting went from Good to Very Good; while window efficiency dropped from Good to Average.

Untraded for 30 years, with the last transfer in December 1996. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £107,000 sits 311.5% above the 1996 sale of £26,000. On a £-per-square-foot basis, the last sale (£50/sq ft) was about 64.7% below the postcode norm. Its energy rating outperforms most of the postcode (better than 86% of similar EPCs).