12a, Shipgate Street, Chester, CH1 1RT

12a is a one-bedroom end-of-terrace house in Chester (CH1 1RT). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (September 2020) shows a D (score 60), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since May 2010. Between certificates, hot-water efficiency went from Average to Good and lighting went from Poor to Average; while wall efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 71). At 51 m² this is the 8th smallest of 11 units on EPC record in the building, where floor areas span 34–165 m². The building's EPC ratings span E to C across 11 units on file.

Last sold in February 2016, so it's been off the market for around 10 years. Across the public record there are 4 sales, relatively high churn for a single property. At 51 m² it's 24.4% larger than the typical home in the postcode (41 m² median across 10 EPCs). Across 1999–2016, sale prices on this property compounded at 5.2% per year. Today's modelled estimate of £185,000 is 20.9% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£279/sq ft) was about 38.2% above the typical sold price in the postcode.