17 Theberton Street, Islington, London, N1 0QY

17 Theberton Street is a three-bedroom mid-terrace house in Islington, London, London (N1 0QY). It has a recorded floor area of 127 m² (around 1367 sq ft), construction records dating it to before 1900 and council tax band G. It is a listed building, which means external alterations are tightly controlled but it may qualify for heritage tax reliefs. The latest certificate (September 2020) shows a D (score 67), on the cusp of jumping into the C band. When first surveyed in January 2009 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 84), a 2-band jump.

Sale prices here have outpaced London HPI: 10% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£1,390/sq ft) was about 144.8% above the typical sold price in the postcode. 8 planning records sit against the property, 7 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. The record references listed-building consent, which constrain future alterations. Last sold in September 2015, so it's been off the market for around 11 years. Across the public record there are 4 sales, relatively high churn for a single property.