Marlborough House, Flat 1, Grove Road, Norwich, NR1 3RQ

Marlborough House is a two-bedroom detached house in Norwich (NR1 3RQ). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1983-1990 and council tax band B. At 72 m² this is the 5th smallest of 11 units on EPC record in Marlborough House, where floor areas span 55–80 m². The building's EPC ratings span E to D, with this unit at the top. The latest certificate (June 2025) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in November 2013 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good and main heating went from Poor to Average; while hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 69). Main heating runs on electricity.

Across 2014–2021, sale prices on this property compounded at 1.5% per year. Today's modelled estimate of £152,000 is 35.7% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£145/sq ft) was about 24.8% below the postcode norm. Last sale on file: £112,000 in November 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.