19 Empire House, Mount Stuart Square, Cardiff, CF10 5LR

19 Empire House is a one-bedroom mid-terrace house in Cardiff (CF10 5LR). It has a recorded floor area of 39 m² (around 420 sq ft) and construction records dating it to 1900-1929. At 39 m² this is the smallest unit on EPC record across the building (39–126 m²). The building's EPC ratings span F to B across 36 units on file. The latest certificate (February 2024) shows a C (score 79), near the top of the C band. The rating has held steady at C across 2 certificates since January 2014. Between certificates, window efficiency went from Very Poor to Average and hot-water efficiency went from Very Poor to Poor; while wall efficiency dropped from Very Good to Very Poor. The recommended improvements would push it to B (score 84). Main heating runs on electricity.

At 39 m² it sits well below the postcode median (74 m² across 35 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 74% of similar EPCs). On a £-per-square-foot basis, the last sale (£298/sq ft) was about 17.5% above the typical sold price in the postcode. Last changed hands 12 years ago, in April 2014.