11 Cemaes Crescent, Rumney, Cardiff, CF3 1TA

11 Cemaes Crescent is a one-bedroom semi-detached house in Rumney, Cardiff, Cardiff (CF3 1TA). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 1950-1966 and council tax band A. At 46 m² this is the 5th smallest of 34 units on EPC record in the building, where floor areas span 45–123 m². The building's EPC ratings span E to C, with this unit at the top. Our model identifies extension potential, subject to local planning policy. The latest certificate (June 2026) shows a C (score 73). The rating has held steady at C across 3 certificates since February 2009. Between certificates, wall efficiency went from Average to Good; while window efficiency dropped from Average to Poor and lighting dropped from Very Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.

At 46 m² it sits well below the postcode median (86 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. On the market in December 2017 and unlisted since — roughly 9 years. Across the public record there are 4 sales, relatively high churn for a single property. Across 2004–2017, sale prices on this property compounded at 1.7% per year. Today's modelled estimate of £104,000 is 38.7% above the 2017 sale price.