11 Dolphin House, Sutton Wharf, Plymouth, PL4 0BL

11 Dolphin House is a one-bedroom detached house in Plymouth (PL4 0BL). It has a recorded floor area of 33 m² (around 358 sq ft) and construction records dating it to 1983-1990. At 33 m² this is the smallest unit on EPC record across the building (33–213 m²). The building's EPC ratings span E to B across 24 units on file. The latest certificate (October 2010) shows a D (score 59), a step below the typical UK home. Earlier certificates rated it C (March 2009); the latest reading is one band lower. The recommended improvements would push it to C (score 80). Main heating runs on electricity. The latest certificate is from October 2010, so improvements made since then won't be reflected.

At 33 m² it sits well below the postcode median (69 m² across 23 EPCs), making it one of the more compact homes locally. Last sold in February 2017, so it's been off the market for around 9 years. Across the public record there are 4 sales, relatively high churn for a single property. Across 2002–2017, sale prices on this property compounded at 3.8% per year. Today's modelled estimate of £108,000 is 20.1% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£251/sq ft) was about 47.5% above the typical sold price in the postcode.