21 Mount Street, Devonport, Plymouth, PL1 4GY

21 Mount Street is a one-bedroom end-of-terrace house in Devonport, Plymouth, Plymouth (PL1 4GY). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 2007-2011 and council tax band A. At 50 m² this is the smallest unit on EPC record across the building (50–60 m²). On EPC score it ranks first in the building (79 versus a worst of 76). The latest certificate (January 2022) shows a C (score 79), near the top of the C band. The rating has held steady at C across 2 certificates since January 2012. Between certificates, roof efficiency went from Good to Very Good; while window efficiency dropped from Very Good to Good.

Across 2012–2022, sale prices on this property compounded at 1.9% per year. On a £-per-square-foot basis, the last sale (£251/sq ft) was about 38.6% above the typical sold price in the postcode. At 50 m² it's 15.3% smaller than the typical home in the postcode (59 m² median across 3 EPCs). 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Sold April 2022 for £135,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.