6b, High Street, Willingham, Cambridge, CB24 5ES

6b is a semi-detached house in Willingham, Cambridge, Cambridge (CB24 5ES). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (February 2014) shows an F (score 28), near the bottom of the EPC scale. The rating has held steady at F across 3 certificates since December 2008. Between certificates, roof efficiency went from Very Poor to Very Good and main heating went from Poor to Average. The recommended improvements would lift it to C (score 74), a 3-band jump. Main heating runs on electricity. The latest certificate is from February 2014, so improvements made since then won't be reflected. At 86 m² this is the 4th smallest of 28 units on EPC record in the building, where floor areas span 33–294 m². The building's EPC ratings span F to B, with this unit at the bottom. On EPC score it ranks last in the building (28 versus a best of 91).

At 86 m² it sits well below the postcode median (150 m² across 27 EPCs), making it one of the more compact homes locally. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.