20 Clarence Terrace, Westminster, London, NW1 4RD

20 Clarence Terrace is a three-bedroom mid-terrace house in Westminster, London, London (NW1 4RD). It has a recorded floor area of 155 m² (around 1668 sq ft), construction records dating it to before 1900 and council tax band H. At 155 m² this is the 25th smallest of 30 units on EPC record in the building, where floor areas span 32–216 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (February 2023) shows a C (score 76), near the top of the C band. When first surveyed in November 2008 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Average to Very Good. The recommended improvements would push it to B (score 83).

Sale prices here have outpaced London HPI: 8.4% per year against 0% for the wider region. Today's modelled estimate of £1,965,000 is 35.9% below the 2016 sale of £3,065,000, a rare downward gap that often correlates with deferred maintenance or unfinished works. On a £-per-square-foot basis, the last sale (£1,837/sq ft) was about 86.1% above the typical sold price in the postcode. At 155 m² the property is well over the postcode median (104 m² across 29 EPCs), placing it in the larger end of the local stock. On the market in March 2016 and unlisted since — roughly 10 years.