Argyll House, Flat 5, The Farmlands, Northolt, UB5 5EH

Argyll House is a two-bedroom semi-detached house in Northolt (UB5 5EH). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1976-1982 and council tax band C. At 59 m² this is the 3rd smallest of 7 units on EPC record in Argyll House, where floor areas span 53–71 m². The building's EPC ratings span E to C, with this unit at the bottom. On EPC score it ranks last in the building (47 versus a best of 78). The latest certificate (November 2023) shows an E (score 47), well below the UK norm with real room to improve. Earlier certificates rated it C (September 2013); the latest reading is 2 bands lower. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Average to Very Poor. The recommended improvements would lift it to B (score 83), a 3-band jump. Main heating runs on electricity.

Held since May 2007 — that's 19 years off the open market, well above the local norm. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £277,000 sits 53.9% above the 2007 sale of £180,000.