21a, Camden High Street, Camden, London, NW1 7JE

21a is a mid-terrace house in Camden, London, London (NW1 7JE). It has a recorded floor area of 81 m² (around 872 sq ft) and construction records dating it to before 1900. At 81 m² this is the 9th smallest of 13 units on EPC record in the building, where floor areas span 33–113 m². The building's EPC ratings span D to B, with this unit at the bottom. The latest certificate (March 2019) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since February 2009. Between certificates, window efficiency went from Poor to Average and lighting went from Good to Very Good. The recommended improvements would push it to C (score 73).

Sale prices here have outpaced London HPI: 23.1% per year against 0% for the wider region. Today's modelled estimate of £770,000 sits 755.6% above the 2016 sale of £90,000. On a £-per-square-foot basis, the last sale (£103/sq ft) was about 92.6% above the typical sold price in the postcode. At 81 m² the property is well over the postcode median (47 m² across 17 EPCs), placing it in the larger end of the local stock. 7 planning records sit against the property, 7 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. On the market in September 2016 and unlisted since — roughly 10 years.