Flat 1 1, 20 Gillingham Street, Westminster, London, SW1V 1AG

Flat 1 1 is a two-bedroom end-of-terrace house in Westminster, London, London (SW1V 1AG). It has a recorded floor area of 61 m² (around 657 sq ft) and council tax band G. At 61 m² this is the smallest unit on EPC record across the building (61–113 m²). The building's EPC ratings span C to B, with this unit at the top. The latest certificate (March 2009) returns a B (score 84), comfortably above the UK average. The latest certificate is from March 2009, so improvements made since then won't be reflected.

Across 2010–2013, sale prices on this property compounded at 5.3% per year. Today's modelled estimate of £849,000 is 22.5% below the 2013 sale of £1,095,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£1,667/sq ft) was about 46.6% above the typical sold price in the postcode. On the market in October 2013 and unlisted since — roughly 13 years.