23 Watermark, Ferry Road, Cardiff, CF11 0JU

23 Watermark is a two-bedroom end-of-terrace house in Cardiff (CF11 0JU). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 2003-2006 and council tax band F. At 78 m² this is the 39th smallest of 50 units on EPC record in the building, where floor areas span 27–201 m². The building's EPC ratings span C to B, with this unit at the bottom. On EPC score it ranks last in the building (72 versus a best of 85). Other recorded features include notable views. The latest certificate (September 2020) shows a C (score 72). Earlier certificates rated it B (June 2010); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Very Poor. Main heating runs on electricity.

Today's modelled estimate of £189,000 is 17.4% below the 2008 sale of £228,850, below the original sale price, which typically signals condition or completion-status changes worth verifying. It hasn't traded since May 2008, a hold of 18 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price.