9 Black Butt Cottages, Sutton Road, Cookham, Maidenhead, SL6 9RE

9 Black Butt Cottages is a two-bedroom mid-terrace house in Cookham, Maidenhead, Maidenhead (SL6 9RE). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to 1930-1949 and council tax band E. The latest certificate (October 2020) shows a C (score 70). When first surveyed in January 2010 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good, lighting went from Average to Very Good and main heating went from Average to Good. The recommended improvements would push it to B (score 86). Period features are noted in the property record.

Held since September 1998 — that's 28 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 £479,000 sits 379% above the 1998 sale of £100,000. On a £-per-square-foot basis, the last sale (£152/sq ft) was about 71.9% below the postcode norm. Its energy rating outperforms most of the postcode (better than 70% of similar EPCs).