Our Data Sources
23C, Lonsdale Square has no records in the the Land Registry and a single entry in the EPC database dated December 2025.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
In very good condition, we estimate 23C, Lonsdale Square would be worth £1,267,721, with a potential rental value of £5,105 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £1,122,839, with a rental value of £4,521 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
23C, Lonsdale Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 05 Dec 2025.
The property is connected to mains gas and has some double glazing. It is heated using Boiler and radiators, mains gas.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 17 sales of comparable properties within 280 metres of 23C, Lonsdale Square across the last 2 years.
Most recently, 8C , Milner Square, London, N1 1TL, a leasehold flat, sold at £1,450,000 on the 16th July 2025.
Read more about house prices in N1.
- Sold Jul 2025£1,450,000 | 3 Bed Flat8C , Milner Square, London, N1 1TL8C , Milner Square, London, N1 1TL
- Sold Oct 2024£1,150,000 | 3 Bed Flat39B , Barnsbury Street, London, N1 1PW39B , Barnsbury Street, London, N1 1PW
- Sold May 2023£1,150,000 | 3 Bed Flat83A , Barnsbury Street, London, N1 1EJ83A , Barnsbury Street, London, N1 1EJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Our analysis of the public data ranks 23C, Lonsdale Square as the 42nd largest and the 38th most expensive of the 87 addresses on Lonsdale Square, London, N1.
Against the N1 postcode district average, it is £459k more expensive than the typical property.
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Schools Nearby
- Thornhill Primary School200 m away
- St Andrew's (Barnsbury) CofE Primary School500 m away
- St Mary's CofE Primary School500 m away
- City of London Academy Islington800 m away
- Elizabeth Garrett Anderson School800 m away
- City of London Academy Highbury Grove1.3 km away
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Public Transport Nearby
- Caledonian Road & Barnsbury|700 m away
- Angel|800 m away
- Highbury & Islington|800 m away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
