21b, Theberton Street, Islington, London, N1 0QY

21b is a mid-terrace house in Islington, London, London (N1 0QY). It has a recorded floor area of 74 m² (around 797 sq ft) and construction records dating it to 1900-1929. At 74 m² this is the 4th smallest of 28 units on EPC record in the building, where floor areas span 37–218 m². The building's EPC ratings span E to C across 28 units on file. The latest certificate (October 2015) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80). The latest certificate is from October 2015, so improvements made since then won't be reflected.

Sale prices here have outpaced London HPI: 6% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£1,299/sq ft) was about 124.5% above the typical sold price in the postcode. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include new windows, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. At 74 m² it sits well below the postcode median (130 m² across 29 EPCs), making it one of the more compact homes locally. Most recent transfer: September 2023 at £1,035,000.