3 St Marks Square, Camden, London, NW1 7TN

3 St Marks Square is a four-bedroom end-of-terrace house in Camden, London, London (NW1 7TN). It has a recorded floor area of 135 m² (around 1453 sq ft) and construction records dating it to before 1900. The latest certificate (May 2019) shows a D (score 58), a step below the typical UK home. When first surveyed in May 2009 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Poor; while roof efficiency dropped from Poor to Very Poor. The recommended improvements would push it to C (score 79). At 135 m² this is the 4th smallest of 7 units on EPC record in the building, where floor areas span 28–554 m². The building's EPC ratings span E to C across 7 units on file. Period features are noted in the property record.

Today's modelled estimate of £1,100,000 sits 67.9% above the 2011 sale of £655,000. On a £-per-square-foot basis, the last sale (£451/sq ft) was about 64.1% below the postcode norm. One planning record on file: tree works approved in 2007. Past consents include tree works, meaningful when judging how the property has evolved. At 135 m² it's 29.8% larger than the typical home in the postcode (104 m² median across 7 EPCs). Last changed hands 14 years ago, in December 2011.