6a, Coniston Road, Cambridge, CB1 7BZ

6a is a one-bedroom semi-detached house in Cambridge (CB1 7BZ). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1930-1949 and council tax band B. At 56 m² this is the smallest unit on EPC record across the building (56–179 m²). The building's EPC ratings span G to C, with this unit at the top. The latest certificate (June 2018) shows a C (score 71). When first surveyed in April 2009 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good.

Held since July 2002 — that's 24 years off the open market, well above the local norm. Today's modelled estimate of £400,000 sits 81.8% above the 2002 sale of £220,050. On a £-per-square-foot basis, the last sale (£365/sq ft) was about 37.9% above the typical sold price in the postcode. At 56 m² it sits well below the postcode median (120 m² across 15 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 80% of similar EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count.