51 Merthyr Road, Tongwynlais, Cardiff, CF15 7LG

51 Merthyr Road is an end-of-terrace house in Tongwynlais, Cardiff, Cardiff (CF15 7LG). It has a recorded floor area of 53 m² (around 570 sq ft) and construction records dating it to before 1900. At 53 m² this is the smallest unit on EPC record across the building (53–139 m²). The building's EPC ratings span E to D, with this unit at the top. The latest certificate (January 2013) shows a D (score 57), a step below the typical UK home. The recommended improvements would push it to C (score 72). The latest certificate is from January 2013, so improvements made since then won't be reflected.

At 53 m² it sits well below the postcode median (92 m² across 5 EPCs), making it one of the more compact homes locally. Today's modelled estimate of £173,000 is 13.1% above the 2013 sale price. On a £-per-square-foot basis, the last sale (£268/sq ft) was about 476.2% above the typical sold price in the postcode. On the market in December 2013 and unlisted since — roughly 13 years.