13 Alderney House, Ferry Court, Cardiff, CF11 0JT

13 Alderney House is a two-bedroom mid-terrace house in Cardiff (CF11 0JT). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 2003-2006 and council tax band E. At 58 m² this is the 31st smallest of 56 units on EPC record in the building, where floor areas span 40–92 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (July 2020) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2009. Between certificates, lighting went from Poor to Average. The recommended improvements would lift it to B (score 83), a 2-band jump. Main heating runs on electricity.

Today's modelled estimate of £162,000 is 15.8% below the 2008 sale of £192,375, a rare downward gap that often correlates with deferred maintenance or unfinished works. Held since January 2008 — that's 18 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs).