71 Petersfield Mansions, Petersfield, Cambridge, CB1 1BB

71 Petersfield Mansions is a semi-detached house in Cambridge (CB1 1BB). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1991-1995 and council tax band D. At 55 m² this is the 28th smallest of 65 units on EPC record in the building, where floor areas span 38–185 m². The building's EPC ratings span E to B, with this unit at the bottom. The latest certificate (December 2020) shows an E (score 46), well below the UK norm with real room to improve. Earlier certificates rated it D (July 2009); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Very Good; while main heating dropped from Poor to Very Poor. Main heating runs on electricity.

On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1996–2021, sale prices on this property compounded at 4.8% per year. Today's modelled estimate of £349,000 is 24.6% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£473/sq ft) was about 103.6% above the typical sold price in the postcode. Sold November 2021 for £280,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.