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Get started11 Canonbury Square is a mid-terrace house in Islington, London, London (N1 2AU). It has a recorded floor area of 39 m² (around 420 sq ft), construction records dating it to 1930-1949 and council tax band C. At 39 m² this is the smallest unit on EPC record across the building (39–242 m²). The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (77 versus a worst of 45). The latest certificate (October 2020) shows a C (score 77), near the top of the C band. The rating has held steady at C across 2 certificates since September 2009. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 82).
At 39 m² it sits well below the postcode median (75 m² across 15 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 80% of similar EPCs). One planning record on file: tree works approved in 2004. Past consents include tree works, meaningful when judging how the property has evolved.
11 Canonbury Square's carbon output is low for the local stock.
Tree works in rear garden subject to Tree Preservation Order Islington (No.1) 1961: Plane (T80): Crown lift removing low extended branches hanging towards road. Also sensitively crown thin remainder by removing longer extended branches back to an appropriate side lateral to retain flowing shape of crown, deadwood.
11 Canonbury Square has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£394,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
11 Canonbury Square outperforms the street on epc rating by a wide margin.
EPC Rating
77 (C)
Street avg 61 (D)
Floor Area
39 m²
Street avg 72 m²
CO₂ Emissions
1.0 t/year
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Rising year-on-year across the wider district.
Nearest stop
0.0 km
Canonbury Square — bus stop.

Daytime· 07:00 – 23:00
57.1dB

Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in N1 2AU: £1,450,000 (2025–2020).
First Floor Flat 12 Canonbury Square London
Sold Sept 2025
6 Canonbury Square Islington London
Sold Sept 2024
Basement Flat 11 Canonbury Square Islington London
Sold May 2023
2 Canonbury Square Islington London
Sold Sept 2022
7 Canonbury Square Islington London
Sold Sept 2020
Street avg 3.3 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
Closest school
0.1 km
William Tyndale Primary School. 101 schools nearby.
Night-time· 23:00 – 07:00
47.8dB