Dalby House, Flat 4, 398 City Road, Islington, London, EC1V 2QA

Dalby House is a mid-terrace house in Islington, London, London (EC1V 2QA). It has a recorded floor area of 48 m² (around 517 sq ft) and construction records dating it to 1930-1949. At 48 m² this is the 2nd smallest of 7 units on EPC record in Dalby House, where floor areas span 31–73 m². The building's EPC ratings span F to C, with this unit at the top. The latest certificate (November 2018) shows a C (score 77), near the top of the C band. When first surveyed in December 2014 the rating was E, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Good and main heating went from Very Poor to Good; while wall efficiency dropped from Poor to Very Poor and window efficiency dropped from Good to Very Poor. The recommended improvements would push it to B (score 82).

14 planning records sit against the property, 7 approved, 4 refused. Past consents include change of use to residential, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Today's modelled estimate of £547,000 is 27.2% above the 2015 sale price. On a £-per-square-foot basis, the last sale (£832/sq ft) was about 18.1% above the typical sold price in the postcode. On the market in February 2015 and unlisted since — roughly 11 years. At 48 m² it's 26.7% smaller than the typical home in the postcode (66 m² median across 22 EPCs).