Opal House, Flat 14, 4 Merrivale Mews, Milton Keynes, MK9 2EL

Opal House is a two-bedroom mid-terrace house in Milton Keynes (MK9 2EL). It has a recorded floor area of 63 m² (around 678 sq ft), construction records dating it to 2007-2011 and council tax band C. The property has solar panels on record, all of which lower running costs and tend to lift resale appeal. At 63 m² this is the 7th smallest of 25 units on EPC record in Opal House, where floor areas span 52–70 m². The building's EPC ratings span C to B, with this unit at the bottom. The latest certificate (June 2022) shows a C (score 76), near the top of the C band. The rating has held steady at C across 2 certificates since March 2012. Between certificates, wall efficiency dropped from Very Good to Good and lighting dropped from Average to Poor.

It lags the bulk of the postcode on energy efficiency (less efficient than 72% of similar EPCs). Across 2012–2019, sale prices on this property compounded at 5.5% per year. On a £-per-square-foot basis, the last sale (£398/sq ft) was about 40.7% above the typical sold price in the postcode. Most recent transfer: December 2019 at £270,000.