66a, Gladstone Street, Sunderland, SR6 0HZ

66a is a two-bedroom mid-terrace house in Sunderland (SR6 0HZ). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to 1900-1929 and council tax band A. The latest certificate (November 2020) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it D (October 2008); the latest reading is one band lower. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good; while roof efficiency dropped from Average to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to D (score 65). At 63 m² this is the 11th smallest of 40 units on EPC record in the building, where floor areas span 54–124 m². The building's EPC ratings span F to C across 40 units on file.

It hasn't traded since September 2005, a hold of 21 years that's notably long for the area. Across 1998–2005, sale prices on this property compounded at 16.4% per year. Today's modelled estimate of £116,000 sits 63.4% above the 2005 sale of £71,000. On a £-per-square-foot basis, the last sale (£105/sq ft) was about 22.9% above the typical sold price in the postcode. At 63 m² it's 26.7% smaller than the typical home in the postcode (86 m² median across 39 EPCs).