Flat 1, 109 Bute Street, Cardiff, CF10 5AD

Flat 1 is a mid-terrace house in Cardiff (CF10 5AD). It has a recorded floor area of 32 m² (around 344 sq ft), construction records dating it to 1900-1929 and council tax band B. At 32 m² this is the smallest unit on EPC record across the building (32–54 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (41 versus a best of 76). The latest certificate (June 2022) shows an E (score 41), well below the UK norm with real room to improve. The rating has held steady at E across 3 certificates since July 2010. Between certificates, wall efficiency went from Very Poor to Poor, hot-water efficiency went from Very Poor to Poor and lighting went from Average to Very Good. The recommended improvements would push it to D (score 61). Main heating runs on electricity.

Untraded for 20 years, with the last transfer in May 2006. At 32 m² it sits well below the postcode median (53 m² across 20 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). 3 planning records sit against the property, 3 approved, 0 refused. Past consents include subdivision and change of use to residential, meaningful when judging how the property has evolved. Today's modelled estimate of £114,000 is 26.7% above the 2006 sale price. On a £-per-square-foot basis, the last sale (£261/sq ft) was about 33% above the typical sold price in the postcode.