21 Cowper Avenue, Leeds, LS9 7AZ

21 Cowper Avenue is a four-bedroom end-of-terrace house in Leeds (LS9 7AZ). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 1900-1929 and council tax band A. At 58 m² this is the 3rd smallest of 20 units on EPC record in the building, where floor areas span 30–100 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 53). The latest certificate (April 2021) shows a C (score 76), near the top of the C band. When first surveyed in August 2010 the rating was E, the property has climbed 2 bands since. Between certificates, lighting went from Average to Very Good; while wall efficiency dropped from Good to Very Poor.

Across 1997–2016, sale prices on this property compounded at 4.1% per year. Today's modelled estimate of £139,000 sits 89.1% above the 2016 sale of £73,500. On a £-per-square-foot basis, the last sale (£118/sq ft) was about 54% above the typical sold price in the postcode. 10 years since the last transfer (March 2016). At 58 m² it's 20.5% smaller than the typical home in the postcode (73 m² median across 19 EPCs).