12a, Beaulands Close, Cambridge, CB4 1JA

12a is a one-bedroom mid-terrace house in Cambridge (CB4 1JA). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 1983-1990 and council tax band C. At 37 m² this is the smallest unit on EPC record across the building (37–59 m²). The building's EPC ratings span E to C across 45 units on file. The latest certificate (October 2018) shows a D (score 56), a step below the typical UK home. When first surveyed in November 2008 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Poor to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would push it to C (score 79). Main heating runs on electricity.

It hasn't traded since November 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. Today's modelled estimate of £248,000 sits 50.3% above the 2009 sale of £165,000. On a £-per-square-foot basis, the last sale (£414/sq ft) was about 29.2% above the typical sold price in the postcode. At 37 m² it's 21.3% smaller than the typical home in the postcode (47 m² median across 44 EPCs).