40a, Aylesford Mews, Sunderland, SR2 9HY

40a is a two-bedroom semi-detached house in Sunderland (SR2 9HY). It has a recorded floor area of 64 m² (around 694 sq ft), construction records dating it to 2003-2006 and council tax band C. The latest certificate (May 2011) returns a B (score 81), comfortably above the UK average. The latest certificate is from May 2011, so improvements made since then won't be reflected. At 64 m² this is the 8th smallest of 51 units on EPC record in the building, where floor areas span 56–250 m². The building's EPC ratings span D to B, with this unit at the top. Other recorded features include a self-contained annexe.

Today's modelled estimate of £110,000 is 25.3% below the 2006 sale of £147,250, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£212/sq ft) was about 21.6% above the typical sold price in the postcode. It hasn't traded since October 2006, a hold of 20 years that's notably long for the area. At 64 m² it sits well below the postcode median (99 m² across 50 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 82% of similar EPCs).