2a, Mill Road, Tongwynlais, Cardiff, CF15 7JP

2a is a semi-detached house in Tongwynlais, Cardiff, Cardiff (CF15 7JP). It has a recorded floor area of 82 m² (around 883 sq ft) and construction records dating it to 1900-1929. At 82 m² this is the 11th smallest of 19 units on EPC record in the building, where floor areas span 39–143 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (December 2023) shows a C (score 69), just inside the C band. When first surveyed in January 2013 the rating was D, the property has climbed 1 band since.

Untraded for 27 years, with the last transfer in July 1999. 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 £200,000 sits 194.1% above the 1999 sale of £68,000. On a £-per-square-foot basis, the last sale (£77/sq ft) was about 53.8% below the postcode norm. Its energy rating outperforms most of the postcode (better than 72% of similar EPCs).