20 Giles Gate, Prestwood, Great Missenden, HP16 0PH

20 Giles Gate is a two-bedroom end-of-terrace house in Prestwood, Great Missenden, Great Missenden (HP16 0PH). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 1983-1990 and council tax band D. At 47 m² this is the 3rd smallest of 40 units on EPC record in the building, where floor areas span 36–64 m². The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (66 versus a best of 79). The latest certificate (May 2013) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 77). The latest certificate is from May 2013, so improvements made since then won't be reflected.

Held since March 2001 — that's 25 years off the open market, well above the local norm. Across 1997–2001, sale prices on this property compounded at 13.8% per year. Today's modelled estimate of £282,000 sits 142.1% above the 2001 sale of £116,500. On a £-per-square-foot basis, the last sale (£230/sq ft) was about 34.9% below the postcode norm. It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs).