Our Data Sources
Flat G, 18, John Spencer Square has 2 entries in the Land Registry , most recently in April 2016 and a single entry in the EPC database dated August 2025.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate Flat G, 18, John Spencer Square would be worth £793,715, with a potential rental value of £3,662 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £703,005, with a rental value of £3,243 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat G, 18, John Spencer Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 13 Aug 2025.
The property is connected to mains gas and has mostly multiple glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
Flat G, 18, John Spencer Square last changed hands on 27th April 2016, selling for £817,125. The transaction was logged as a leasehold flat by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has dropped by 36.6% since April 2016.
- Sold Apr 2016£817,125
- Sold Feb 2011£456,552
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 3 sales of comparable properties within 350 metres of Flat G, 18, John Spencer Square across the last 2 years.
Most recently, Flat H, 18, John Spencer Square, London, N1 2LZ, a leasehold flat, sold at £800,000 on the 28th February 2025.
Read more about house prices in N1.
- Sold Feb 2025£800,000 | 2 Bed FlatFlat H, 18, John Spencer Square, London, N1 2LZFlat H, 18, John Spencer Square, London, N1 2LZ
- Sold Mar 2023£775,000 | 2 Bed FlatFlat G, 17, John Spencer Square, London, N1 2LZFlat G, 17, John Spencer Square, London, N1 2LZ
- Sold Oct 2022£730,000 | 2 Bed FlatFlat E, 18, John Spencer Square, London, N1 2LZFlat E, 18, John Spencer Square, London, N1 2LZ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Similar Properties Let Nearby
Agents in our network have reported 1 letting of a comparable property within 350 metres of Flat G, 18, John Spencer Square across the last 2 years.
The newest of these is Flat 5, 14, Highbury New Park, London, N5 2DB, a leasehold flat let by Fine Living in October 2025.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
Location Comparison
Our analysis of the public data ranks Flat G, 18, John Spencer Square as the 42nd largest and the 45th most expensive of the 68 addresses on John Spencer Square, London, N1.
Against the N1 postcode district average, it is £8k more expensive than the typical property.
More reading links
Schools Nearby
- 200mCanonbury Primary School
- 400mLaycock Primary School
- 500mWilliam Tyndale Primary School
- 400mCity of London Academy Highbury Grove
- 800mHighbury Fields School
- 1.1kmCity of London Academy Islington
More reading links
Public Transport Nearby
- 200mHighbury & Islington
- 500mCanonbury
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.
