Our Data Sources
15, Thornhill Square has 21 entries in the Land Registry , most recently in October 2014 and a single entry in the EPC database dated April 2026.
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
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 15, Thornhill Square is in very good condition we estimate a sale value of £2,827,894 and a rental value of £11,445 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £2,504,706 and a rental value of £10,137 per month.
Plot Size
According to data from HM Land Registry, 15, Thornhill Square sits on a plot of 169 m2.
We have plot size data on 24 out of 24 other houses in the postcode and 15, Thornhill Square sits on the 16th largest plot.
Energy Efficiency
15, Thornhill Square has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 23 Apr 2026.
The property is connected to mains gas and has single glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
According to HM Land Registry, 15, Thornhill Square was last sold on 3rd October 2014 for £2,224,000 and was recorded as a freehold house.
The property has had 2 sales since 1995.
Since October 2014, the market for similar properties has dropped by 16.7%.
- Sold Oct 2014£2,224,000
- Sold Jun 2006£1,300,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 3 sales of properties similar to 15, Thornhill Square within a radius of 310 metres over the last 2 years.
The most recent example is 2, Lambert Street, London, N1 1JE, a freehold house which sold for £2,880,000 on the 27th January 2026.
Read more about house prices in N1.
- Sold Jan 2026£2,880,000 | 4 Bed House2, Lambert Street, London, N1 1JE2, Lambert Street, London, N1 1JE
- Sold Apr 2024£2,750,500 | 4 Bed House16, Thornhill Square, London, N1 1BQ16, Thornhill Square, London, N1 1BQ
- Sold Aug 2022£2,860,000 | 4 Bed House5, Thornhill Square, London, N1 1BQ5, Thornhill Square, London, N1 1BQ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Properties Let Nearby
Our network of Estate Agents reports 1 let within 310 metres of 15, Thornhill Square over the last 2 years.
Most recently, 242A, Caledonian Road, London, N1 0NG, a leasehold flat, was let by Fine Living in November 2020.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
Location Comparison
Thornhill Square, London, N1 has a total of 102 addresses. According to our analysis of all the public data, 15, Thornhill Square is the 6th largest and the 5th most expensive property on the street.
When compared to the postcode district it is £1.945m more expensive than the average property in N1.
More reading links
Schools Nearby
- 200mSt Andrew's (Barnsbury) CofE Primary School
- 300mThornhill Primary School
- 500mVittoria Primary School
- 800mElizabeth Garrett Anderson School
- 1.2kmCity of London Academy Islington
- 1.5kmRegent High School
More reading links
Public Transport Nearby
- 300mCaledonian Road & Barnsbury
- 1.0kmCaledonian Road
- 1.0kmAngel
Available Internet Speeds
According to recent data from Ofcom, superfast broadband is available in this area.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be very low.
