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Get started11 Alwyne Square is a five-bedroom mid-terrace house in Islington, London, London (N1 2JX). It has a recorded floor area of 159 m² (around 1711 sq ft), construction records dating it to 1950-1966 and council tax band G. The latest certificate (August 2009) shows a C (score 75), near the top of the C band. When first surveyed in November 2008 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good, window efficiency went from Very Poor to Poor and hot-water efficiency went from Good to Very Good; while roof efficiency dropped from Good to Poor. The latest certificate is from August 2009, so improvements made since then won't be reflected.
It hasn't traded since November 2009, a hold of 17 years that's notably long for the area. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Sale prices here have outpaced London HPI: 12.2% per year against 0% for the wider region. Today's modelled estimate of £2,019,000 sits 66.9% above the 2009 sale of £1,210,000. On a £-per-square-foot basis, the last sale (£707/sq ft) was about 32.2% above the typical sold price in the postcode. 3 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension and partial demolition, meaningful when judging how the property has evolved. 5 bedrooms is on the larger side for this postcode, where 3 is the typical count.
11 Alwyne Square's EPC is over a decade old — improvements since won't be reflected.
This certificate is over 10 years old and is no longer valid.Expired 11 Aug 2019
Planning history includes recorded demolition works, indicating a major rebuild phase at this address.
Single storey · Rear of property
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£2,019,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.2% per year over 2 years.
£1,210,000
Growth on file: 12.2% per year over 2 years.
11 Alwyne Square outperforms the street on epc rating by a wide margin.
Price per m²
£7,610
Street avg £9,750
Floor Area
159 m²
Street avg 160 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
0.1 km
Highbury Grove — bus stop.

Daytime· 07:00 – 23:00
55.7dB

Changes detected from historical EPC data
Hot water efficiency improved
Window efficiency improved
Cavity wall insulation installed
Floor insulation added or improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Erection of a full width single storey rear extension following demolition of the existing half width single storey rear extension.
Certificate of Lawfulness in connection with proposed erection of rear extension and roof lights to rear of existing roof
1 more application for this property
Join to see all planning history.
2 November 2009Most recent
£1,210,000
+24.7%over 1 year3 December 2007
£970,000
Median price across the last 5 sales in N1 2JX: £1,850,000 (2025–2020).
Street avg 6 rooms
CO₂ Emissions
4.6 t/year
Street avg 4.9 t/year
N1 2PH
Closest school
0.4 km
City of London Academy Highbury Grove. 102 schools nearby.
Night-time· 23:00 – 07:00
46.1dB
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