18a, Granhams Close, Great Shelford, Cambridge, CB22 5LG

18a is a one-bedroom semi-detached house in Great Shelford, Cambridge, Cambridge (CB22 5LG). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (July 2026) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (February 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Good; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to C (score 73). This certificate was lodged in the last six months, so the rating reflects current condition. At 42 m² this is the 2nd smallest of 23 units on EPC record in the building, where floor areas span 41–105 m². The building's EPC ratings span E to A across 23 units on file.

At 42 m² it sits well below the postcode median (61 m² across 22 EPCs), making it one of the more compact homes locally. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. One planning record on file: an extension approved in 2019. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. Across 2005–2016, sale prices on this property compounded at 8.2% per year. Today's modelled estimate of £243,000 is 15.2% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£467/sq ft) was about 89.7% above the typical sold price in the postcode. 10 years since the last transfer (May 2016).