Chelsea House, 11, 599 Witan Gate, Milton Keynes, MK9 2BU

Chelsea House is a one-bedroom mid-terrace house in Milton Keynes (MK9 2BU). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 2007-2011 and council tax band B. At 42 m² this is the smallest unit on EPC record across Chelsea House (42–85 m²). The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (March 2026) shows a C (score 78), near the top of the C band. The rating has held steady at C across 2 certificates since June 2014. Between certificates, wall efficiency dropped from Very Good to Good and window efficiency dropped from Good to Average. This certificate was lodged in the last six months, so the rating reflects current condition.

Untraded for 19 years, with the last transfer in October 2007. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. At 42 m² it's 16% smaller than the typical home in the postcode (50 m² median across 47 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 70% of similar EPCs). Today's modelled estimate of £134,000 is 21.2% above the 2007 sale price.