11 Heol Y Castell, Ely, Cardiff, CF5 5LR

11 Heol Y Castell is a one-bedroom detached house in Ely, Cardiff, Cardiff (CF5 5LR). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1976-1982 and council tax band A. At 41 m² this is the 2nd smallest of 34 units on EPC record in the building, where floor areas span 36–363 m². The building's EPC ratings span F to C, with this unit at the top. On EPC score it ranks first in the building (79 versus a worst of 34). The latest certificate (November 2008) shows a C (score 79), near the top of the C band. The recommended improvements would push it to B (score 81). The latest certificate is from November 2008, so improvements made since then won't be reflected.

Untraded for 16 years, with the last transfer in May 2010. Across the public record there are 5 sales, relatively high churn for a single property. Across 1995–2010, sale prices on this property compounded at 8% per year. Today's modelled estimate of £102,000 sits 59.4% above the 2010 sale of £64,000. On a £-per-square-foot basis, the last sale (£145/sq ft) was about 65.9% above the typical sold price in the postcode. At 41 m² it sits well below the postcode median (67 m² across 33 EPCs), making it one of the more compact homes locally. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.