Flat 1, 8 Marlborough Road, Cardiff, CF23 5BX

Flat 1 is a mid-terrace house in Cardiff (CF23 5BX). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to 1900-1929 and council tax band D. At 68 m² this is the 6th smallest of 14 units on EPC record in the building, where floor areas span 23–214 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (November 2023) shows a C (score 70). When first surveyed in May 2009 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Good to Very Good; while window efficiency dropped from Good to Average.

Held since September 1996 — that's 30 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £229,000 sits 421% above the 1996 sale of £43,950. On a £-per-square-foot basis, the last sale (£60/sq ft) was about 61.5% below the postcode norm. At 68 m² it's 15.3% larger than the typical home in the postcode (59 m² median across 71 EPCs).