5a, Eccleston Square, Westminster, London, SW1V 1NP

5a is a two-bedroom mid-terrace house in Westminster, London, London (SW1V 1NP). It has a recorded floor area of 101 m² (around 1087 sq ft), construction records dating it to before 1900 and council tax band F. The latest certificate (March 2017) shows a D (score 65), on the cusp of jumping into the C band. When first surveyed in March 2012 the rating was G, the property has climbed 3 bands since. Between certificates, hot-water efficiency went from Very Poor to Average and main heating went from Very Poor to Average. The recommended improvements would push it to C (score 80). Main heating runs on electricity. At 101 m² this is the 10th smallest of 12 units on EPC record in the building, where floor areas span 45–440 m². The building's EPC ratings span E to C across 12 units on file.

At 101 m² the property is well over the postcode median (57 m² across 37 EPCs), placing it in the larger end of the local stock. 6 planning records sit against the property, 6 approved, 0 refused. Past consents include new windows, an extension and a conservatory, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. On the market in June 2017 and unlisted since — roughly 9 years.