12a, Gloucester Place, Cheltenham, GL52 2RJ

12a is a mid-terrace house in Cheltenham (GL52 2RJ). It has a recorded floor area of 53 m² (around 570 sq ft) and construction records dating it to before 1900. At 53 m² this is the 7th smallest of 22 units on EPC record in the building, where floor areas span 33–248 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (February 2019) shows a C (score 73). The rating has held steady at C across 2 certificates since January 2009. Between certificates, wall efficiency went from Very Poor to Poor; while window efficiency dropped from Good to Average and lighting dropped from Poor to Very Poor.

It hasn't traded since April 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 2008–2009, sale prices on this property compounded at -0.8% per year. Today's modelled estimate of £186,000 sits 55% above the 2009 sale of £120,000. On a £-per-square-foot basis, the last sale (£210/sq ft) was about 17.4% below the postcode norm.