Cornwall House 55 57, Flat 7, High Street, Slough, SL1 1DZ

Cornwall House 55 57 is a mid-terrace house in Slough (SL1 1DZ). It has a recorded floor area of 76 m² (around 818 sq ft) and construction records dating it to 2007-2011. At 76 m² this is the 47th smallest of 55 units on EPC record in Cornwall House 55 57, where floor areas span 34–133 m². The building's EPC ratings span F to C, with this unit at the top. On EPC score it ranks first in the building (79 versus a worst of 36). The latest certificate (March 2023) shows a C (score 79), near the top of the C band. When first surveyed in May 2016 the rating was F, the property has climbed 3 bands since. Between certificates, hot-water efficiency went from Very Poor to Poor; while window efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 85). Main heating runs on electricity.

At 76 m² the property is well over the postcode median (53 m² across 54 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 85% of similar EPCs). On the market in June 2016 and unlisted since — roughly 10 years. Today's modelled estimate of £241,000 is 17% above the 2016 sale price.