21 Castle Street, Plymouth, PL1 2NJ

21 Castle Street is a one-bedroom end-of-terrace house in Plymouth (PL1 2NJ). It has a recorded floor area of 40 m² (around 431 sq ft), construction records dating it to 1983-1990 and council tax band B. The latest certificate (November 2018) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in December 2008 the rating was F, the property has climbed 2 bands since. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 80). Main heating runs on electricity. At 40 m² this is the 8th smallest of 50 units on EPC record in the building, where floor areas span 29–80 m². The building's EPC ratings span E to B across 50 units on file. Other recorded features include a balcony.

One planning record on file: tree works approved in 2012. Past consents include tree works, meaningful when judging how the property has evolved. Across 2004–2019, sale prices on this property compounded at -0.6% per year. On a £-per-square-foot basis, the last sale (£288/sq ft) was about 36.9% above the typical sold price in the postcode. At 40 m² it's 16.4% smaller than the typical home in the postcode (48 m² median across 49 EPCs). Most recent transfer: April 2019 at £124,000.