Flat D, 11 Winchester Street, Westminster, London, SW1V 4PA

Flat D is a mid-terrace house in Westminster, London, London (SW1V 4PA). It has a recorded floor area of 86 m² (around 926 sq ft) and construction records dating it to before 1900. The latest certificate (November 2015) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since August 2009. Between certificates, wall efficiency went from Very Poor to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 79). The latest certificate is from November 2015, so improvements made since then won't be reflected.

At 86 m² the property is well over the postcode median (45 m² across 27 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 74% of similar EPCs). Across 2007–2017, sale prices on this property compounded at -7.1% per year. Today's modelled estimate of £1,174,000 is 17.7% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£1,078/sq ft) was about 88.9% above the typical sold price in the postcode. Last changed hands 9 years ago, in November 2017.