81a, Birdwood Road, Cambridge, CB1 3ST

81a is a one-bedroom semi-detached house in Cambridge (CB1 3ST). 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 (February 2026) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since July 2011. Between certificates, roof efficiency dropped from Good to Average and window efficiency dropped from Average to Poor. This certificate was lodged in the last six months, so the rating reflects current condition. At 42 m² this is the 8th smallest of 33 units on EPC record in the building, where floor areas span 39–101 m². The building's EPC ratings span F to B across 33 units on file. Other recorded features include outbuildings.

At 42 m² it sits well below the postcode median (77 m² across 32 EPCs), making it one of the more compact homes locally. Across 2012–2019, sale prices on this property compounded at 4.2% per year. Today's modelled estimate of £247,000 is 18.2% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£462/sq ft) was about 44% above the typical sold price in the postcode. Last sale on file: £209,000 in August 2019.