12 Carlton Court, Gresham Road, Staines Upon Thames, TW18 2BL

12 Carlton Court is a mid-terrace house in Staines Upon Thames (TW18 2BL). It has a recorded floor area of 44 m² (around 474 sq ft), construction records dating it to 1976-1982 and council tax band C. The latest certificate (June 2020) shows a D (score 60), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since April 2014. Between certificates, wall efficiency went from Poor to Good; while window efficiency dropped from Average to Poor and lighting dropped from Average to Very Poor. The recommended improvements would lift it to B (score 84), a 2-band jump. Main heating runs on electricity. At 44 m² this is the 4th smallest of 15 units on EPC record in the building, where floor areas span 41–47 m². The building's EPC ratings span E to C across 15 units on file.

Today's modelled estimate of £208,000 is 12.4% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£391/sq ft) was about 36% above the typical sold price in the postcode. Sold May 2021 for £185,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.