12 Railway Terrace, Tongwynlais, Cardiff, CF15 7NR

12 Railway Terrace is a five-bedroom detached house in Tongwynlais, Cardiff, Cardiff (CF15 7NR). It has a recorded floor area of 144 m² (around 1550 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (November 2021) shows a D (score 58), a step below the typical UK home. The rating has held steady at D across 2 certificates since April 2010. Between certificates, lighting went from Average to Very Good; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to C (score 78). Period features are noted in the property record.

Untraded for 25 years, with the last transfer in January 2001. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. At 144 m² the property is well over the postcode median (74 m² across 7 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £374,000 sits 281.6% above the 2001 sale of £98,000. On a £-per-square-foot basis, the last sale (£63/sq ft) was about 60.4% below the postcode norm.