21 Christchurch Street, Cambridge, CB1 1HT

21 Christchurch Street is a mid-terrace house in Cambridge (CB1 1HT). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1983-1990 and council tax band B. At 47 m² this is the 5th smallest of 31 units on EPC record in the building, where floor areas span 41–104 m². The building's EPC ratings span E to B across 31 units on file. The latest certificate (March 2015) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 74). The latest certificate is from March 2015, so improvements made since then won't be reflected.

Held since January 2008 — that's 18 years off the open market, well above the local norm. Across the public record there are 4 sales, relatively high churn for a single property. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Across 1995–2008, sale prices on this property compounded at 11.5% per year. Today's modelled estimate of £273,000 is 47.6% above the 2008 sale price. On a £-per-square-foot basis, the last sale (£366/sq ft) was about 76.4% above the typical sold price in the postcode.