17b, Third Avenue, Rainworth, Mansfield, NG21 0BY

17b is a one-bedroom end-of-terrace house in Rainworth, Mansfield, Mansfield (NG21 0BY). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (May 2013) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since January 2009. Between certificates, lighting went from Average to Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 76). The latest certificate is from May 2013, so improvements made since then won't be reflected. At 45 m² this is the 3rd smallest of 34 units on EPC record in the building, where floor areas span 42–94 m². The building's EPC ratings span E to C across 34 units on file.

At 45 m² it sits well below the postcode median (87 m² across 33 EPCs), making it one of the more compact homes locally. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.