16 Castle House, Desborough Road, High Wycombe, HP11 2FP

16 Castle House is a one-bedroom end-of-terrace house in High Wycombe (HP11 2FP). It has a recorded floor area of 53 m² (around 570 sq ft) and construction records dating it to 2012 onwards. The latest certificate (June 2026) returns a B (score 83), comfortably above the UK average. When first surveyed in July 2018 the rating was C, the property has climbed 1 band since. Between certificates, wall efficiency went from Average to Good, hot-water efficiency went from Very Poor to Average and main heating went from Very Poor to Poor; while window efficiency dropped from Very Good to Average. Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition. At 53 m² this is the 39th smallest of 40 units on EPC record in the building, where floor areas span 31–61 m². The building's EPC ratings span D to B, with this unit at the top. On EPC score it ranks first in the building (83 versus a worst of 58).

Today's modelled estimate of £193,000 is 17.9% below the 2018 sale of £234,950, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. At 53 m² it's 23.3% larger than the typical home in the postcode (43 m² median across 39 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Last sale on file: £234,950 in August 2018.