4 Byron House, Sheridan Court, High Wycombe, HP12 4SQ

4 Byron House is a two-bedroom semi-detached house in High Wycombe (HP12 4SQ). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 2007 onwards and council tax band C. At 71 m² this is the largest unit on EPC record across the building (58–71 m²). The building's EPC ratings span C to B, with this unit at the top. On EPC score it ranks first in the building (82 versus a worst of 78). The latest certificate (April 2019) returns a B (score 82), comfortably above the UK average. The rating has held steady at B across 2 certificates since April 2009. Between certificates, wall efficiency went from Good to Very Good.

Held since June 2008 — that's 18 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. Its energy rating outperforms most of the postcode (better than 80% of similar EPCs). Today's modelled estimate of £247,000 is 23.5% above the 2008 sale price.