224 Hayes Apartments, The Hayes, Cardiff, CF10 1BQ

224 Hayes Apartments is a one-bedroom mid-terrace house in Cardiff (CF10 1BQ). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 2012 onwards and council tax band E. At 39 m² this is the smallest unit on EPC record across the building (39–75 m²). The building's EPC ratings span D to B, with this unit at the top. The latest certificate (May 2025) returns a B (score 84), comfortably above the UK average. When first surveyed in June 2011 the rating was C, the property has climbed 1 band since. Between certificates, main heating went from Very Poor to Poor; while window efficiency dropped from Very Good to Average. Main heating runs on electricity.

At 39 m² it sits well below the postcode median (65 m² across 20 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 80% of similar EPCs). On the market in December 2011 and unlisted since — roughly 14 years. Today's modelled estimate of £150,000 is 32.7% above the 2011 sale price.