Flat, 230 Cowbridge Road East, Cardiff, CF5 1GY

Flat is a mid-terrace house in Cardiff (CF5 1GY). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (February 2019) shows an E (score 51), well below the UK norm with real room to improve. Earlier certificates rated it D (September 2015); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to D (score 56). At 72 m² this is the 5th smallest of 10 units on EPC record in the building, where floor areas span 37–106 m². The building's EPC ratings span F to C across 10 units on file.

It hasn't traded since July 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Today's modelled estimate of £182,000 is 40% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£168/sq ft) was about 19% below the postcode norm.