Flat 4, 164 Marlborough Road, Cardiff, CF23 5BZ

Flat 4 is a two-bedroom semi-detached house in Cardiff (CF23 5BZ). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1930-1949 and council tax band D. At 56 m² this is the 2nd smallest of 6 units on EPC record in the building, where floor areas span 53–93 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (April 2022) shows a C (score 76), near the top of the C band. The rating has held steady at C across 2 certificates since March 2012. Between certificates, lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Poor and window efficiency dropped from Good to Average.

At 56 m² it sits well below the postcode median (113 m² across 16 EPCs), making it one of the more compact homes locally. Across 2013–2020, sale prices on this property compounded at 2% per year. Today's modelled estimate of £199,000 is 15% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£287/sq ft) was about 21.7% above the typical sold price in the postcode. Last sale on file: £173,000 in October 2020.