Marlborough House, Flat 5, Grove Road, Norwich, NR1 3RQ

Marlborough House is a detached house in Norwich (NR1 3RQ). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1950-1966 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 bottom. The latest certificate (February 2019) shows an E (score 53), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since November 2008. Between certificates, hot-water efficiency went from Very Poor to Poor and lighting went from Average to Very Good; while main heating dropped from Poor to Very Poor. The recommended improvements would lift it to C (score 78), a 2-band jump. Main heating runs on electricity.

Most recent transfer was February 2025 at £185,000 — fresh data. Across the public record there are 4 sales, relatively high churn for a single property. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). Across 2008–2025, sale prices on this property compounded at 2.4% per year. On a £-per-square-foot basis, the last sale (£239/sq ft) was about 26.5% above the typical sold price in the postcode.