The Mansion House, Flat 6, 5 Royal William Road, Plymouth, PL1 3RQ

The Mansion House is a one-bedroom end-of-terrace house in Plymouth (PL1 3RQ). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to before 1900 and council tax band C. At 63 m² this is the smallest unit on EPC record across The Mansion House (63–81 m²). The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (53 versus a best of 75). The latest certificate (February 2019) shows an E (score 53), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 62).

At 63 m² it's 16% smaller than the typical home in the postcode (75 m² median across 6 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. It changed hands recently, sold July 2025 for £225,000. Across 1998–2025, sale prices on this property compounded at 4.5% per year. On a £-per-square-foot basis, the last sale (£332/sq ft) was about 194.9% above the typical sold price in the postcode.