16b, Betws Road, Ammanford, SA18 2HE

16b is a semi-detached house in Ammanford (SA18 2HE). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1900-1929 and council tax band C. At 57 m² this is the smallest unit on EPC record across the building (57–142 m²). The building's EPC ratings span F to B across 20 units on file. The latest certificate (July 2021) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in January 2010 the rating was E, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good and lighting went from Good to Very Good.

At 57 m² it sits well below the postcode median (104 m² across 19 EPCs), making it one of the more compact homes locally. On a £-per-square-foot basis, the last sale (£228/sq ft) was about 149.1% above the typical sold price in the postcode. Last sale on file: £140,000 in March 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.