9 Castleton Avenue, Treherbert, Treorchy, CF42 5SS

9 Castleton Avenue is a three-bedroom semi-detached house in Treherbert, Treorchy, Treorchy (CF42 5SS). It has a recorded floor area of 154 m² (around 1658 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (September 2019) shows a D (score 56), a step below the typical UK home. When first surveyed in May 2009 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Good; while roof efficiency dropped from Average to Very Poor. The recommended improvements would push it to C (score 73).

Untraded for 16 years, with the last transfer in October 2010. At 154 m² the property is well over the postcode median (100 m² across 22 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £182,000 sits 109.2% above the 2010 sale of £87,000. On a £-per-square-foot basis, the last sale (£52/sq ft) was about 38% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.