78a, High Street, Great Missenden, HP16 0AN

78a is a two-bedroom end-of-terrace house in Great Missenden (HP16 0AN). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1930-1949 and council tax band B. The latest certificate (May 2025) shows an E (score 47), well below the UK norm with real room to improve. When first surveyed in April 2025 the rating was G, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Average and main heating went from Very Poor to Average. The recommended improvements would push it to D (score 57). Main heating runs on electricity. At 45 m² this is the 2nd smallest of 9 units on EPC record in the building, where floor areas span 36–194 m². The building's EPC ratings span E to C, with this unit at the bottom.

Held since June 1999 — that's 27 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £216,000 sits 327.7% above the 1999 sale of £50,500. On a £-per-square-foot basis, the last sale (£104/sq ft) was about 60.8% below the postcode norm. At 45 m² it sits well below the postcode median (86 m² across 8 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 75% of similar EPCs). One planning record on file: an extension refused in 2013.