15 Llewelyn Goch, St Fagans, Cardiff, CF5 6HR

15 Llewelyn Goch is a five-bedroom detached house in St. Fagans, Cardiff, Cardiff (CF5 6HR). It has a recorded floor area of 136 m² (around 1465 sq ft), construction records dating it to 1996-2002 and council tax band G. The latest certificate (July 2011) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 71). The latest certificate is from July 2011, so improvements made since then won't be reflected.

Across 2003–2013, sale prices on this property compounded at 3.2% per year. Today's modelled estimate of £502,000 sits 67.3% above the 2013 sale of £300,000. On a £-per-square-foot basis, the last sale (£205/sq ft) was about 20.4% above the typical sold price in the postcode. At 136 m² it's 19.2% smaller than the typical home in the postcode (169 m² median across 32 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 78% of similar EPCs). On the market in September 2013 and unlisted since — roughly 13 years.