11a, Arlington Square, Islington, London, N1 7DS

11a is a one-bedroom mid-terrace house in Islington, London, London (N1 7DS). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to before 1900 and council tax band E. The latest certificate (March 2023) shows a D (score 59), a step below the typical UK home. The rating has held steady at D across 2 certificates since November 2011. Between certificates, window efficiency went from Very Poor to Average and lighting went from Very Poor to Very Good; while roof efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 90), a 2-band jump. Other recorded features include a balcony.

Sale prices here have outpaced London HPI: 9.4% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£1,416/sq ft) was about 133.7% above the typical sold price in the postcode. 6 planning records sit against the property, 6 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 42 m² it sits well below the postcode median (74 m² across 10 EPCs), making it one of the more compact homes locally. On the market in May 2017 and unlisted since — roughly 9 years. Across the public record there are 4 sales, relatively high churn for a single property.