100 Ashmill Street, Westminster, London, NW1 6RA

100 Ashmill Street is an end-of-terrace house in Westminster, London, London (NW1 6RA). It has a recorded floor area of 92 m² (around 990 sq ft), construction records dating it to before 1900 and council tax band G. At 92 m² this is the 12th smallest of 14 units on EPC record in the building, where floor areas span 33–207 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (February 2017) shows a C (score 76), near the top of the C band. When first surveyed in February 2017 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Very Good.

Today's modelled estimate of £1,058,000 is 64.7% below the 2016 sale of £3,000,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£3,029/sq ft) was about 447% above the typical sold price in the postcode. At 92 m² the property is well over the postcode median (53 m² across 13 EPCs), placing it in the larger end of the local stock. 23 planning records sit against the property, 18 approved, 5 refused. Past consents include new windows, a garage conversion, subdivision and an extension, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Last sold in December 2016, so it's been off the market for around 9 years.