Property Data Search:

12, BARNSBURY SQUARE, LONDON, N1 1JL - £2,750,000

The information on this page is based on a number of underlying datasets, most of which are updated monthly. We maintain an update schedule which explains which version of each dataset we are currently relying on.

12 BARNSBURY SQUARE is a large extended detached house of 192m², built sometime before 1900, which could now be worth an estimated £3,419,179. It was last sold for £2,750,000 in May 2014, which was around 121% above the average May 2014 detached price in the Islington local authority area. The most recent EPC inspection was July 2013, where the current energy rating was D, and the potential energy rating was B.

12 BARNSBURY SQUARE Sold Prices

Land registry data shows four sales for 12 BARNSBURY SQUARE since 1st January 1995. The below table shows the price paid for the four sales, along with the average detached price in the Islington local authority area for the corresponding sale date. All of the four 12 BARNSBURY SQUARE sales were for above the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

DatePriceHPI PriceVariation from HPI
2014
23 MAY
£2,750,000£1,243,580
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121% above HPI
2010
17 JUN
£1,510,000£844,754
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79% above HPI
2005
5 SEP
£1,030,000£613,389
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68% above HPI
1998
17 JUL
£445,000£319,363
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39% above HPI

12 BARNSBURY SQUARE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Islington local authority area over time, sourced from the HPI. The four 12 BARNSBURY SQUARE sales between July 1998 and May 2014 have been plotted on the graph. A line has been extrapolated to show what the value of the property might have been over time, following each sale, had it maintained the same margin above or below the HPI (as a percentage). For example, the June 2010 sale was for 79% above the HPI. So the extrapolation line tracks at 79% above the HPI over time, until the May 2014 sale, where it rises to 121% above the HPI. The line then continues to track at 121% above the HPI.

12, BARNSBURY SQUARE, LONDON, N1 1JL: Price paid vs HM Land Registry's House Price Index

What might 12 BARNSBURY SQUARE be worth now?

12 BARNSBURY SQUARE might now be worth an estimated £3,419,179.

This is based on house price inflation of 24.3%, between May 2014 and February 2025, for detached houses, in the Islington local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 24.3% inflationary increase is applied to the most recent sale price for 12 BARNSBURY SQUARE of £2,750,000 on 23rd May 2014. For the value to have increased from £2,750,000 to £3,419,179 over the eleven years and three months to February 2025, the following assumptions must hold true:

  • The value of 12 BARNSBURY SQUARE has moved in line with the HPI for detached houses in the Islington local authority area.
  • The May 2014 sale price of £2,750,000 represented a fair market value for the property.
  • The size, condition, and specification of 12 BARNSBURY SQUARE has not materially changed since May 2014.
Disclaimer: Please note that this is a theoretical estimate based on assumptions which may or may not be correct. It should not be relied on for any purpose.

How Large is 12 BARNSBURY SQUARE?

12 BARNSBURY SQUARE is 192m², which includes two extensions, according to the EPC inspection conducted in July 2013. This puts it in the largest 30% of detached houses houses in Islington, based on EPC data. The below chart shows the distribution of detached houses houses by size in Islington, and where 12 BARNSBURY SQUARE lies on this distribution: 73% of detached houses houses are smaller than 12 BARNSBURY SQUARE, and 27% of houses are larger. Note that EPC data is not available for all properties in Islington.

12, BARNSBURY SQUARE, LONDON, N1 1JL: Size of property relative to detached houses houses in Islington

12 BARNSBURY SQUARE: Plot and Title Map

12 BARNSBURY SQUARE sits on a plot of roughly 0.043 of an acre, or 174m². The below map shows the location of 12 BARNSBURY SQUARE, an approximate outline of the building(s), and the indicative extent of the property. The plot extent is a Land Registry INSPIRE Index Polygon, and it is important to note that a title may include more than one polygon, whereas only one polygon is shown on the map (the polygon which intersects with the position of 12 BARNSBURY SQUARE). The full extent of the land contained in any registered title can only be identified from the individual title plan. The maps on this page should not be relied upon to establish the extent of a title.

12, BARNSBURY SQUARE, LONDON, N1 1JL: Plot and title map

Where is 12 BARNSBURY SQUARE?

12 BARNSBURY SQUARE is located in LONDON, in the N1 postcode district. The below map shows the position of No. 12 on BARNSBURY SQUARE.

12, BARNSBURY SQUARE, LONDON, N1 1JL: Location map and indicative extent of plot

All property sales on BARNSBURY SQUARE

Most recent sales first:

Limited data available
2024
9 SEP
£680,000
Limited data available
2024
16 AUG
£1,250,000
Limited data available
2024
17 JUN
£3,300,000
Limited data available
2023
24 NOV
£1,300,000
Limited data available
2023
11 OCT
£1,230,000
Limited data available
2023
9 OCT
£900,000
Limited data available
2023
30 AUG
£1,550,000
Limited data available
2023
1 AUG
£695,000
Limited data available
2022
14 OCT
£3,125,000
Limited data available
2022
23 MAY
£2,950,000
Limited data available
2021
29 NOV
£845,000
Limited data available
2021
10 SEP
£1,350,000
Limited data available
2021
9 APR
£1,300,000
Limited data available
2020
1 OCT
£6,150,000
Limited data available
2020
16 MAR
£699,000
Limited data available
2019
12 SEP
£1,045,000
Limited data available
2019
14 JUN
£2,795,000
Limited data available
2019
15 MAR
£695,000
Limited data available
2018
6 AUG
£957,500
Limited data available
2018
10 JUL
£942,000
Limited data available
2018
9 MAR
£2,715,000
Limited data available
2017
12 SEP
£1,827,500
Limited data available
2017
26 APR
£1,222,789
Limited data available
2016
14 OCT
£1,166,666
Limited data available
2016
10 OCT
£1,375,000
Limited data available
2016
6 JUN
£1,535,000
Limited data available
2015
29 JUN
£2,800,000
Limited data available
2015
22 JUN
£4,025,000
Full data available
2014
23 MAY
£2,750,000
Limited data available
2014
28 FEB
£445,900
Limited data available
2013
19 NOV
£885,000
Limited data available
2012
15 OCT
£720,000
Limited data available
2012
30 MAR
£1,525,000
Full data available
2012
7 MAR
£1,000,000
Limited data available
2011
16 DEC
£425,000
Limited data available
2011
11 NOV
£781,500
Limited data available
2011
1 SEP
£650,000
Limited data available
2011
15 AUG
£2,100,000
Limited data available
2011
29 MAR
£620,000
Full data available
2010
17 JUN
£1,510,000
Full data available
2009
14 AUG
£910,000
Limited data available
2009
28 MAY
£485,000
Limited data available
2009
2 FEB
£300,000
Limited data available
2008
4 AUG
£650,000
Limited data available
2007
14 SEP
£1,120,000
Limited data available
2007
1 AUG
£1,010,000
Limited data available
2007
10 APR
£599,950
Full data available
2005
5 SEP
£1,030,000
Full data available
2005
18 JUL
£560,000
Limited data available
2003
12 NOV
£410,000
Full data available
2003
18 AUG
£455,000
Limited data available
2003
3 AUG
£405,000
Full data available
2003
9 JAN
£1,850,000
Limited data available
2002
10 MAY
£440,000
Limited data available
2000
16 MAR
£360,000
Full data available
2000
23 FEB
£1,250,000
Limited data available
1999
1 OCT
£519,000
Limited data available
1999
22 JUL
£267,000
Limited data available
1999
28 APR
£225,000
Full data available
1998
17 JUL
£445,000
Limited data available
1997
28 NOV
£235,000
Limited data available
1997
5 SEP
£325,000
Limited data available
1997
12 AUG
£170,000
Limited data available
1997
18 JUL
£120,000
Limited data available
1997
17 JUN
£175,000
Full data available
1997
26 FEB
£313,500
Limited data available
1996
25 OCT
£227,000
Limited data available
1996
12 AUG
£125,000
Limited data available
1995
29 NOV
£149,000
Limited data available
1995
29 SEP
£169,000
Limited data available
1995
24 APR
£220,000
Source: HM Land Registry Price Paid Data
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Source: HM Land Registry UK House Price Index
Licence: Contains HM Land Registry data © Crown copyright and database right 2025. This data is licensed under the Open Government Licence v3.0.
Copyright statement: This information is subject to Crown copyright and database rights 2025 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2025 Ordnance Survey 100026316. Conditions of use.