19 Duncombe Court, Thames Side, Staines Upon Thames, TW18 2HE

19 Duncombe Court is a three-bedroom detached house in Staines Upon Thames (TW18 2HE). It has a recorded floor area of 92 m² (around 990 sq ft), construction records dating it to 1967-1975 and council tax band E. Tenure is freehold. The latest certificate (April 2014) shows an F (score 37), near the bottom of the EPC scale. Earlier certificates rated it D (June 2012); the latest reading is 2 bands lower. Between certificates, wall efficiency dropped from Good to Poor and roof efficiency dropped from Average to Very Poor. The recommended improvements would lift it to D (score 68), a 2-band jump. Main heating runs on electricity. The latest certificate is from April 2014, so improvements made since then won't be reflected. At 92 m² this is the 19th smallest of 20 units on EPC record in the building, where floor areas span 70–122 m². The building's EPC ratings span F to B, with this unit at the bottom. On EPC score it ranks last in the building (37 versus a best of 81). Other recorded features include a balcony.

At 92 m² the property is well over the postcode median (70 m² across 19 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2013–2023, sale prices on this property compounded at 3.7% per year. On a £-per-square-foot basis, the last sale (£439/sq ft) was about 47.1% above the typical sold price in the postcode. Sold September 2023 for £435,000.