Echo Building, Apartment 23, West Wear Street, Sunderland, SR1 1XD

Echo Building is a mid-terrace house in Sunderland (SR1 1XD). It has a recorded floor area of 78 m² (around 840 sq ft), construction records dating it to 2003-2006 and council tax band D. The latest certificate (May 2018) shows a C (score 77), near the top of the C band. The rating has held steady at C across 3 certificates since March 2010. Between certificates, hot-water efficiency dropped from Average to Very Poor. The recommended improvements would push it to B (score 87). Main heating runs on electricity. At 78 m² this is the 34th smallest of 89 units on EPC record in Echo Building, where floor areas span 48–129 m². The building's EPC ratings span E to B across 89 units on file.

Across 2007–2016, sale prices on this property compounded at -8.5% per year. Today's modelled estimate of £118,000 sits 53.2% above the 2016 sale of £77,000. On a £-per-square-foot basis, the last sale (£92/sq ft) was about 52.9% below the postcode norm. Last changed hands 10 years ago, in March 2016.