31c, Fitzjohns Avenue, Camden, London, NW3 5JY

31c is a detached house in Camden, London, London (NW3 5JY). It has a recorded floor area of 88 m² (around 947 sq ft) and construction records dating it to 1900-1929. The latest certificate (March 2021) shows a D (score 63), on the cusp of jumping into the C band. The rating has held steady at D across 7 certificates since September 2008. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Average to Very Good; while window efficiency dropped from Poor to Very Poor and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 78). At 88 m² this is the 22nd smallest of 65 units on EPC record in the building, where floor areas span 32–645 m². The building's EPC ratings span F to B across 65 units on file.

It hasn't traded since March 1995, a hold of 31 years that's notably long for the area. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £1,045,000 sits 326.5% above the 1995 sale of £245,000. On a £-per-square-foot basis, the last sale (£259/sq ft) was about 63.6% below the postcode norm.