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Sold prices and estimated values

Property Valuations in UNION SQUARE, Islington N1

See what homes on Union Square have sold for, what they could be worth today, and the highest prices recorded for each type of property.

Highest sold prices on UNION SQUARE

The highest recorded sale on UNION SQUARE is £2,375,000 at 12, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH, sold on 19 August 2022

Property type Highest sale Address Sale date
Terraced £2,375,000 12, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH 19 Aug 2022
Flat / Maisonette £950,000 UPPER MAISONETTE, 3, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH 26 Sep 2025

These historic sales (often known as ceiling prices) can help provide context when assessing potential development values on the street.

UPPER MAISONETTE, 3, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH

Tenure: Leasehold
Property Type: Flat
Weighted central estimate: £920,764
Weighted central estimate £/m²: £9,208
Previous sales
26 Sep 2025 - £950,000

5, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH

Tenure: Freehold
Property Type: Terraced
Weighted central estimate: £2,191,921
Weighted central estimate £/m²: £14,141
Previous sales
25 Sep 2015 - £1,917,000
25 Jun 2004 - £685,000
09 Sep 1999 - £465,000

7, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH

Tenure: Freehold
Property Type: Terraced
Weighted central estimate: £2,266,416
Weighted central estimate £/m²: £15,009
Previous sales
14 Jun 2024 - £2,355,000
27 Nov 2012 - £1,465,000
21 Nov 2003 - £640,000

12, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH

Tenure: Freehold
Property Type: Terraced
Weighted central estimate: £2,404,993
Weighted central estimate £/m²: £15,516
Previous sales
19 Aug 2022 - £2,375,000
31 Aug 2012 - £1,260,000

14, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH

Tenure: Freehold
Property Type: Terraced
Weighted central estimate: £2,285,490
Weighted central estimate £/m²: £14,745
Previous sales
23 Jan 2024 - £2,200,000
18 Sep 2002 - £660,000
20 Oct 2000 - £550,000
11 Jul 1997 - £359,000

15, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH

Tenure: Freehold
Property Type: Terraced
Weighted central estimate: £2,399,799
Weighted central estimate £/m²: £14,457
Previous sales
21 Jul 2023 - £2,350,000
20 Apr 2010 - £1,010,000

3A, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH

Tenure: Leasehold
Property Type: Flat
Weighted central estimate: £895,221
Weighted central estimate £/m²: £10,786
Previous sales
07 Nov 2023 - £930,000

6A, UNION SQUARE, ISLINGTON, GREATER LONDON N1 7DH

Tenure: Leasehold
Property Type: Flat
Weighted central estimate: £477,308
Weighted central estimate £/m²: £10,607
Previous sales
05 Oct 2007 - £307,780

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