171a, Mill Road, Cambridge, CB1 3AN

171a is a two-bedroom mid-terrace house in Cambridge (CB1 3AN). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (July 2022) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since July 2012. Between certificates, roof efficiency went from Average to Very Good and window efficiency went from Average to Good. The recommended improvements would push it to C (score 71). At 55 m² this is the 13th smallest of 22 units on EPC record in the building, where floor areas span 24–156 m². The building's EPC ratings span E to C across 22 units on file.

Held since April 1997 — that's 29 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £303,000 sits 276.4% above the 1997 sale of £80,500. On a £-per-square-foot basis, the last sale (£136/sq ft) was about 30.9% below the postcode norm.