21a, Perran Avenue, Fishermead, Milton Keynes, MK6 2DE

21a is a detached house in Fishermead, Milton Keynes, Milton Keynes (MK6 2DE). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1976-1982 and council tax band A. At 72 m² this is the 4th smallest of 14 units on EPC record in the building, where floor areas span 45–122 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (61 versus a best of 77). The latest certificate (March 2014) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since February 2009. Between certificates, window efficiency went from Very Poor to Good and lighting went from Very Poor to Good. The recommended improvements would push it to C (score 76). The latest certificate is from March 2014, so improvements made since then won't be reflected.

At 72 m² it sits well below the postcode median (108 m² across 13 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs).