13, Union Square occupies a 104 m² plot as recorded by HM Land Registry.

Of the 25 other houses in this postcode, 10 have recorded plot sizes, and this one ranks as the 10th largest.

13, Union Square has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 02 Nov 2017.

The property is connected to mains gas and has single glazed windows. It is heated using a boiler and radiators (mains gas).

Land Registry records and our Estate Agent network show 29 sales of comparable properties within 270 metres of 13, Union Square since 2007.

Most recently, 44, Arlington Square, London, N1 7DT, a freehold house, sold at £2,525,000 on the 20th February 2026.

Read more about house prices in N1.

• Sold Feb 2026£2,525,000 | 4 Bed House44, Arlington Square, London, N1 7DT44, Arlington Square, London, N1 7DT
• Sold Jan 2026£2,350,000 | 4 Bed House27, Arlington Square, London, N1 7DP27, Arlington Square, London, N1 7DP
• Sold Aug 2024£2,180,000 | 4 Bed House15, Rees Street, London, N1 7AR15, Rees Street, London, N1 7AR
• Sold Jun 2024£2,355,000 | 4 Bed House7, Union Square, London, N1 7DH7, Union Square, London, N1 7DH
• Sold Jan 2024£2,200,000 | 4 Bed House14, Union Square, London, N1 7DH14, Union Square, London, N1 7DH
• Sold Dec 2023£1,955,000 | 4 Bed House65, Arlington Avenue, London, N1 7BA65, Arlington Avenue, London, N1 7BA
• Sold Jul 2023£2,350,000 | 4 Bed House15, Union Square, London, N1 7DH15, Union Square, London, N1 7DH
• Sold Apr 2023£2,000,000 | 4 Bed House4, Arlington Square, London, N1 7DS4, Arlington Square, London, N1 7DS
• Sold Aug 2022£2,375,000 | 4 Bed House12, Union Square, London, N1 7DH12, Union Square, London, N1 7DH
• Sold Mar 2021£1,805,000 | 4 Bed House9, Canon Street, London, N1 7DB9, Canon Street, London, N1 7DB
• Sold Jul 2020£2,000,000 | 4 Bed House23, Arlington Square, London, N1 7DP23, Arlington Square, London, N1 7DP
• Sold May 2020£1,935,000 | 4 Bed House2, Mary Street, London, N1 7DL2, Mary Street, London, N1 7DL
• Sold Sep 2015£1,917,000 | 4 Bed House5, Union Square, London, N1 7DH5, Union Square, London, N1 7DH
• Sold Mar 2015£1,525,000 | 4 Bed House33, Arlington Square, London, N1 7DP33, Arlington Square, London, N1 7DP
• Sold Aug 2014£1,740,000 | 4 Bed House37, Arlington Square, London, N1 7DP37, Arlington Square, London, N1 7DP
• Sold Jul 2013£985,000 | 4 Bed House5, Rydon Street, London, N1 7AL5, Rydon Street, London, N1 7AL
• Sold Jul 2013£1,470,000 | 4 Bed House10, Union Square, London, N1 7DH10, Union Square, London, N1 7DH
• Sold Jan 2013£1,430,000 | 4 Bed House28, Arlington Square, London, N1 7DP28, Arlington Square, London, N1 7DP
• Sold Sep 2011£1,278,000 | 4 Bed House24, Arlington Square, London, N1 7DP24, Arlington Square, London, N1 7DP
• Sold May 2007£837,811 | 4 Bed House6, Canon Street, London, N1 7DB6, Canon Street, London, N1 7DB

Agents in our network have reported 7 lettings within 270 metres of 13, Union Square across the last 2 years.

The newest of these is Flat 5, 14-22, Coleman Fields, London, N1 7AD, a leasehold flat let by Fine Living in April 2022.

• 
  Let agreed Apr 2022£ Undisclosed | 2 Bed FlatFlat 5, 14-22, Coleman Fields, London, N1 7ADFlat 5, 14-22, Coleman Fields, London, N1 7AD
• 
  Let May 2021£ Undisclosed | 1 Bed FlatFlat 1, 14-22, Coleman Fields, London, N1 7ADFlat 1, 14-22, Coleman Fields, London, N1 7AD
• 
  Let Mar 2021£ Undisclosed | 2 Bed FlatFlat 10, 14-22, Coleman Fields, London, N1 7ADFlat 10, 14-22, Coleman Fields, London, N1 7AD
• 
  Let Dec 2020£ Undisclosed | 2 Bed FlatFlat 2, Montanaro Court 24, Coleman Fields, London, N1 7ADFlat 2, Montanaro Court 24, Coleman Fields, London, N1 7AD
• 
  Let Nov 2020£ Undisclosed | 2 Bed FlatFlat 5, Montanaro Court 24, Coleman Fields, London, N1 7ADFlat 5, Montanaro Court 24, Coleman Fields, London, N1 7AD
• 
  Let Nov 2020£ Undisclosed | 2 Bed FlatFlat 8, 14-22, Coleman Fields, London, N1 7ADFlat 8, 14-22, Coleman Fields, London, N1 7AD
• 
  Let Nov 2020£ Undisclosed | 2 Bed House22A, Coleman Fields, London, N1 7AD22A, Coleman Fields, London, N1 7AD

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Our analysis of the public data ranks 13, Union Square as the 4th largest and the 2nd most expensive of the 33 addresses on Union Square, London, N1.

Against the N1 postcode district average, it is £1.563m more expensive than the typical property.

• Thomas Fairchild Community School

  400 m away
• Rotherfield Primary School

  400 m away
• The New North Academy

  400 m away

• City of London Academy Islington

  200 m away
• Waterside Academy

  1.2 km away
• Elizabeth Garrett Anderson School

  1.3 km away

• Essex Road

  |

  500 m away
• Angel

  |

  900 m away
• Old Street

  |

  1.2 km away

Environment Agency data suggests this area has a Very Low risk of flooding.