100 Hayes Apartments, The Hayes, Cardiff, CF10 1BL

100 Hayes Apartments is a one-bedroom mid-terrace house in Cardiff (CF10 1BL). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 2003-2006 and council tax band E. The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. Other recorded features include a balcony. At 41 m² this is the 2nd smallest of 67 units on EPC record in the building, where floor areas span 39–79 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (September 2019) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it B (March 2010); the latest reading is 2 bands lower. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Good. Main heating runs on electricity.

It hasn't traded since May 2010, a hold of 16 years that's notably long for the area. At 41 m² it sits well below the postcode median (65 m² across 66 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £161,000 is 19.3% above the 2010 sale price.