164 Marlborough Road, Cardiff, CF23 5BZ

164 Marlborough Road is a semi-detached house in Cardiff (CF23 5BZ). It has a recorded floor area of 59 m² (around 635 sq ft) and construction records dating it to 2007 onwards. At 59 m² this is the 4th smallest of 17 units on EPC record in the building, where floor areas span 53–161 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (June 2020) shows a C (score 79), near the top of the C band. The rating has held steady at C across 3 certificates since November 2008. Between certificates, wall efficiency went from Very Poor to Good, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while main heating dropped from Very Good to Good.

Across 2007–2022, sale prices on this property compounded at 4% per year. Today's modelled estimate of £436,000 is 43.4% below the 2022 sale of £770,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£1,212/sq ft) was about 414% above the typical sold price in the postcode. At 59 m² it sits well below the postcode median (113 m² across 16 EPCs), making it one of the more compact homes locally. Last sale on file: £770,000 in January 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.