21c, Sunderland Street, Tickhill, Doncaster, DN11 9PT

21c is a mid-terrace house in Tickhill, Doncaster, Doncaster (DN11 9PT). It has a recorded floor area of 54 m² (around 581 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (June 2024) shows a C (score 75), near the top of the C band. When first surveyed in May 2014 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency dropped from Very Good to Good. At 54 m² this is the 2nd smallest of 21 units on EPC record in the building, where floor areas span 37–272 m². The building's EPC ratings span F to B across 21 units on file.

Held since June 2005 — that's 21 years off the open market, well above the local norm. At 54 m² it sits well below the postcode median (120 m² across 20 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 80% of similar EPCs). Across 1999–2005, sale prices on this property compounded at 21% per year. Today's modelled estimate of £304,000 is 16.9% above the 2005 sale price. On a £-per-square-foot basis, the last sale (£447/sq ft) was about 131.4% above the typical sold price in the postcode.