11a, Clay Hill, Two Mile Ash, Milton Keynes, MK8 8HP

11a is a one-bedroom mid-terrace house in Two Mile Ash, Milton Keynes, Milton Keynes (MK8 8HP). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 1976-1982 and council tax band A. At 43 m² this is the smallest unit on EPC record across the building (43–61 m²). The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (73 versus a worst of 53). The latest certificate (September 2021) shows a C (score 73). The rating has held steady at C across 2 certificates since April 2011. Between certificates, roof efficiency went from Good to Very Good and window efficiency went from Average to Good; while wall efficiency dropped from Good to Average and hot-water efficiency dropped from Average to Very Poor. The recommended improvements would push it to B (score 83). Main heating runs on electricity.

Held since February 1996 — that's 30 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 £134,000 sits 516.1% above the 1996 sale of £21,750. On a £-per-square-foot basis, the last sale (£47/sq ft) was about 73.2% below the postcode norm. At 43 m² it's 25.9% smaller than the typical home in the postcode (58 m² median across 7 EPCs). Its energy rating outperforms most of the postcode (better than 86% of similar EPCs).