Dunraven House, Flat 16, Westgate Street, Cardiff, CF10 1DL

Dunraven House is a one-bedroom semi-detached house in Cardiff (CF10 1DL). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (May 2018) shows an E (score 51), well below the UK norm with real room to improve. When first surveyed in March 2009 the rating was F, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Good and main heating went from Poor to Good; while lighting dropped from Poor to Very Poor. The recommended improvements would push it to D (score 64). At 42 m² this is the 7th smallest of 17 units on EPC record in Dunraven House, where floor areas span 22–82 m². The building's EPC ratings span E to C, with this unit at the bottom.

Held since May 2004 — that's 22 years off the open market, well above the local norm. At 42 m² it sits well below the postcode median (66 m² across 16 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. Across 1996–2004, sale prices on this property compounded at 15.5% per year. Today's modelled estimate of £150,000 is 46.3% above the 2004 sale price. On a £-per-square-foot basis, the last sale (£227/sq ft) was about 22.5% above the typical sold price in the postcode.