21 Regency Apartments, Citadel East, Killingworth, Newcastle Upon Tyne, NE12 6DL

21 Regency Apartments is a two-bedroom semi-detached house in Killingworth, Newcastle Upon Tyne, Newcastle Upon Tyne (NE12 6DL). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 2003-2006 and council tax band A. The latest certificate (August 2020) returns a B (score 81), comfortably above the UK average. When first surveyed in June 2009 the rating was C, the property has climbed 1 band since. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Average to Poor. Main heating runs on electricity. At 53 m² this is the 26th smallest of 50 units on EPC record in the building, where floor areas span 40–64 m². The building's EPC ratings span D to B, with this unit at the top.

Today's modelled estimate of £98,000 is 27.1% below the 2005 sale of £134,500, a rare downward gap that often correlates with deferred maintenance or unfinished works. Untraded for 21 years, with the last transfer in July 2005. On energy efficiency it sits in the top 10% of properties in this postcode.