Flat 2, 28 High Street, Carshalton, SM5 3AG

Flat 2 is a semi-detached house in Carshalton (SM5 3AG). It has a recorded floor area of 44 m² (around 474 sq ft) and construction records dating it to 2020. The latest certificate (April 2022) returns a high B (score 90), putting the home a stone's throw from an A rating. When first surveyed in April 2017 the rating was D, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Average to Very Good and window efficiency went from Poor to Very Good; while hot-water efficiency dropped from Good to Very Poor and main heating dropped from Good to Average. Main heating runs on electricity: electricity, unspecified tariff. At 44 m² this is the 2nd smallest of 4 units on EPC record in the building, where floor areas span 43–67 m². The building's EPC ratings span E to B, with this unit at the top. On EPC score it ranks first in the building (90 versus a worst of 53).

Today's modelled estimate of £243,000 is 59.5% below the 2017 sale of £600,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£1,267/sq ft) was about 860.1% above the typical sold price in the postcode. On energy efficiency it sits in the top 10% of properties in this postcode. On the market in June 2017 and unlisted since — roughly 9 years.