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Get started1 Barnsbury Street is a four-bedroom mid-terrace house in Islington, London, London (N1 1PW). It has a recorded floor area of 261 m² (around 2809 sq ft) and construction records dating it to 1900-1929. The latest certificate (August 2022) returns a B (score 81), comfortably above the UK average. When first surveyed in July 2014 the rating was C, the property has climbed 1 band since. Between certificates, wall efficiency went from Good to Very Good, roof efficiency went from Poor to Average and window efficiency went from Very Poor to Good; while hot-water efficiency dropped from Good to Poor. Main heating runs on electricity. Other recorded features include a balcony.
Sale prices here have outpaced London HPI: 13.7% per year against 0% for the wider region. Today's modelled estimate of £3,400,000 is 28.3% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£943/sq ft) was about 51.5% above the typical sold price in the postcode. At 261 m² the property is well over the postcode median (87 m² across 24 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the top 10% of properties in this postcode. 7 planning records sit against the property, 5 approved, 2 refused. Past consents include an extension and a basement excavation, meaningful when judging how the property has evolved. Sold February 2023 for £2,650,000.
1 Barnsbury Street ranks among the most efficient homes in the postcode for energy use.
1 Barnsbury Street has been through 5 approved planning applications — a well-evolved property.
Erection of a second floor level above the existing two storey building to allow an extension of the existing single dwellinghouse; creation of an outdoor roof terrace; and associated alterations.
1 Barnsbury Street has more than doubled in price since the earliest registered sale in 2015.
£3,400,000
Modelled from EPC, postcode comparables and a sale-price growth of 13.7% per year over 8 years.
£2,650,000
Growth on file: 13.7% per year over 8 years.
On epc rating, 1 Barnsbury Street stands well clear of the street.
Price per m²
£10,153
Street avg £11,247
Floor Area
261 m²
Street avg 188 m²
Habitable Rooms
6 rooms
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Islington Town Hall — bus stop.

Daytime· 07:00 – 23:00
56.5dB

Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Single glazing replaced with double or better glazing
Roof insulation improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
Erection of a second floor level above existing two storey building and excavation of a basement level to allow the creation an additional 2 bedroom dwelling.
5 more applications for this property
Join to see all planning history.
17 February 2023Most recent
£2,650,000
+183.4%over 8 years14 January 2015
£935,000
Median price across the last 5 sales in N1 1PW: £1,150,000 (2025–2022).
Street avg 7 rooms
CO₂ Emissions
3.4 t/year
Street avg 7.9 t/year
N1 1HB
Closest school
0.2 km
William Tyndale Primary School. 97 schools nearby.
Night-time· 23:00 – 07:00
46.3dB
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