3 Katherine Close, Penn, High Wycombe, HP10 8ET

3 Katherine Close is a four-bedroom detached house in Penn, High Wycombe, High Wycombe (HP10 8ET). It has a recorded floor area of 162 m² (around 1742 sq ft), construction records dating it to 1976-1982 and council tax band G. The latest certificate (September 2009) 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 September 2009, so improvements made since then won't be reflected. The home occupies a cul-de-sac position.

Held since December 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. One planning record on file: an extension approved in 2000. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). Today's modelled estimate of £894,000 is 44.2% above the 2009 sale price. On a £-per-square-foot basis, the last sale (£356/sq ft) was about 30.2% below the postcode norm.