13a, High Green, Gainford, Darlington, DL2 3DL

13a is a mid-terrace house in Gainford, Darlington, Darlington (DL2 3DL). It has a recorded floor area of 68 m² (around 732 sq ft), construction records dating it to before 1900 and council tax band A. At 68 m² this is the 7th smallest of 19 units on EPC record in the building, where floor areas span 39–381 m². The building's EPC ratings span G to C, with this unit at the top. The latest certificate (January 2019) shows a C (score 70). When first surveyed in October 2010 the rating was F, the property has climbed 3 bands since. Between certificates, wall efficiency went from Very Poor to Poor, hot-water efficiency went from Very Poor to Good and lighting went from Very Poor to Poor.

Today's modelled estimate of £135,000 is 11.2% below the 2019 sale of £152,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£208/sq ft) was about 53.8% above the typical sold price in the postcode. At 68 m² it sits well below the postcode median (108 m² across 18 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 72% of similar EPCs). Most recent transfer: May 2019 at £152,000.