16a, Abercromby Avenue, High Wycombe, HP12 3AX

16a is a semi-detached house in High Wycombe (HP12 3AX). It has a recorded floor area of 38 m² (around 409 sq ft), construction records dating it to before 1900 and council tax band A. The latest certificate (October 2019) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in January 2009 the rating was E, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Very Poor to Average, lighting went from Very Poor to Very Good and main heating went from Poor to Average; while wall efficiency dropped from Good to Very Poor. The recommended improvements would push it to C (score 77). Main heating runs on electricity. At 38 m² this is the 2nd smallest of 30 units on EPC record in the building, where floor areas span 37–105 m². The building's EPC ratings span F to C across 30 units on file.

Held since May 2011 — that's 15 years off the open market, well above the local norm. Today's modelled estimate of £148,000 sits 94.7% above the 2011 sale of £76,000. At 38 m² it sits well below the postcode median (79 m² across 29 EPCs), making it one of the more compact homes locally.