29 Marlborough Road, Cardiff, CF23 5BT

29 Marlborough Road is an end-of-terrace house in Cardiff (CF23 5BT). It has a recorded floor area of 36 m² (around 388 sq ft) and construction records dating it to 1900-1929. The latest certificate (June 2019) shows an E (score 46), well below the UK norm with real room to improve. When first surveyed in March 2010 the rating was F, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Very Poor to Average and lighting went from Poor to Good. The recommended improvements would lift it to C (score 70), a 2-band jump. Main heating runs on electricity. At 36 m² this is the 24th smallest of 52 units on EPC record in the building, where floor areas span 22–235 m². The building's EPC ratings span E to C, with this unit at the bottom.

Across 1995–2017, sale prices on this property compounded at 18.6% per year. Today's modelled estimate of £154,000 is 92.4% below the 2017 sale of £2,030,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£5,239/sq ft) was about 2817.8% above the typical sold price in the postcode. It lags the bulk of the postcode on energy efficiency (less efficient than 84% of similar EPCs). Last sold in August 2017, so it's been off the market for around 9 years.