20 Hartland House, Ferry Court, Cardiff, CF11 0JE

20 Hartland House is an end-of-terrace house in Cardiff (CF11 0JE). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 2003-2006 and council tax band D. The latest certificate (June 2025) returns a B (score 82), comfortably above the UK average. When first surveyed in March 2014 the rating was C, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Average to Poor and main heating dropped from Poor to Very Poor. Main heating runs on electricity. At 51 m² this is the 25th smallest of 55 units on EPC record in the building, where floor areas span 22–79 m². The building's EPC ratings span D to B, with this unit at the top.

Across 2004–2015, sale prices on this property compounded at -6.5% per year. Today's modelled estimate of £130,000 sits 116.7% above the 2015 sale of £60,000. On a £-per-square-foot basis, the last sale (£109/sq ft) was about 52% below the postcode norm. Last changed hands 11 years ago, in October 2015. At 51 m² it's 17.1% smaller than the typical home in the postcode (62 m² median across 54 EPCs).