21 Granville Avenue, Cardiff, CF5 1BW

21 Granville Avenue is a mid-terrace house in Cardiff (CF5 1BW). It has a recorded floor area of 96 m² (around 1033 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (July 2015) shows a D (score 55), a step below the typical UK home. When first surveyed in December 2014 the rating was G, the property has climbed 3 bands since. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Very Poor to Good and main heating went from Very Poor to Good; while lighting dropped from Average to Very Poor. The recommended improvements would push it to C (score 76). The latest certificate is from July 2015, so improvements made since then won't be reflected.

Across 2015–2015, sale prices on this property compounded at 36.3% per year. Today's modelled estimate of £451,000 sits 50.4% above the 2015 sale of £299,950. On a £-per-square-foot basis, the last sale (£290/sq ft) was about 30.2% above the typical sold price in the postcode. One planning record on file: an extension approved in 2018. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. 11 years since the last transfer (September 2015).