3 Charter Mews, Northgate Street, Bury St Edmunds, IP33 1HP

3 Charter Mews is a four-bedroom semi-detached house in Bury St Edmunds (IP33 1HP). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 2007 onwards and council tax band D. At 53 m² this is the smallest unit on EPC record across the building (53–111 m²). The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (80 versus a worst of 64). The latest certificate (July 2013) shows a C (score 80), near the top of the C band. The rating has held steady at C across 2 certificates since April 2010. Between certificates, wall efficiency went from Good to Very Good, window efficiency went from Good to Very Good and lighting went from Poor to Very Good; while hot-water efficiency dropped from Very Good to Average and main heating dropped from Very Good to Average. The recommended improvements would push it to B (score 81). Main heating runs on electricity. The latest certificate is from July 2013, so improvements made since then won't be reflected.

At 53 m² it sits well below the postcode median (108 m² across 19 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 79% of similar EPCs). Across 2010–2014, sale prices on this property compounded at 1.6% per year. Today's modelled estimate of £494,000 is 28.3% above the 2014 sale price. On a £-per-square-foot basis, the last sale (£675/sq ft) was about 215.7% above the typical sold price in the postcode. Last changed hands 12 years ago, in May 2014.