91a, Flat 4, Northgate Street, Bury St Edmunds, IP33 1HY

91a is a semi-detached house in Bury St Edmunds (IP33 1HY). It has a recorded floor area of 74 m² (around 797 sq ft) and construction records dating it to before 1900. At 74 m² this is the largest unit on EPC record across 91a (55–74 m²). The building's EPC ratings span E to C, with this unit at the bottom. The latest certificate (June 2019) shows an E (score 42), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since August 2009. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Very Poor to Good; while roof efficiency dropped from Very Good to Good and main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 77), a 2-band jump. Main heating runs on electricity.

One planning record on file: tree works approved in 2012. Past consents include tree works, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. It lags the bulk of the postcode on energy efficiency (less efficient than 78% of similar EPCs).