12 Japan Crescent, Islington, London, N4 4BB

12 Japan Crescent is a four-bedroom semi-detached house in Islington, London, London (N4 4BB). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to 1991-1995 and council tax band D. At 64 m² this is the 2nd smallest of 15 units on EPC record in the building, where floor areas span 50–139 m². The building's EPC ratings span G to C, with this unit at the top. The latest certificate (December 2024) shows a C (score 73). When first surveyed in March 2009 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Good and window efficiency went from Poor to Average.

It hasn't traded since July 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 1997–2009, sale prices on this property compounded at 11.4% per year. Today's modelled estimate of £980,000 sits 68.1% above the 2009 sale of £583,000. On a £-per-square-foot basis, the last sale (£846/sq ft) was about 243.3% above the typical sold price in the postcode. At 64 m² it sits well below the postcode median (111 m² across 14 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 71% of similar EPCs). 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, new windows and a loft conversion, meaningful when judging how the property has evolved.