17a, Corporation Road, Cardiff, CF11 7AN

17a is a three-bedroom mid-terrace house in Cardiff (CF11 7AN). It has a recorded floor area of 68 m² (around 732 sq ft) and construction records dating it to 1900-1929. At 68 m² this is the 18th smallest of 28 units on EPC record in the building, where floor areas span 24–135 m². The building's EPC ratings span G to C, with this unit at the top. The latest certificate (November 2019) shows a C (score 69), just inside the C band. When first surveyed in April 2019 the rating was E, the property has climbed 2 bands since. Between certificates, window efficiency went from Average to Good.

It hasn't traded since December 1995, a hold of 31 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 68 m² it's 17.2% larger than the typical home in the postcode (58 m² median across 27 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Today's modelled estimate of £154,000 sits 388.9% above the 1995 sale of £31,500. On a £-per-square-foot basis, the last sale (£43/sq ft) was about 66.6% below the postcode norm.