4, Union Square occupies a 130 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 2nd largest.

4, Union Square last changed hands on 24th August 2007, selling for £1,050,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has risen by 85.3% since August 2007.

Land Registry records and our Estate Agent network show 51 sales of comparable properties within 260 metres of 4, Union Square since 2013.

Most recently, 11, Rydon Street, London, N1 7AL, a freehold house, sold at £1,890,750 on the 1st May 2026.

Read more about house prices in N1.

• Sold May 2026£1,890,750 | 4 Bed House11, Rydon Street, London, N1 7AL11, Rydon Street, London, N1 7AL
• 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 Sep 2025£1,960,000 | 4 Bed House64, St. Paul Street, London, N1 7DA64, St. Paul Street, London, N1 7DA
• Sold Aug 2025£2,215,000 | 4 Bed House7, Rydon Street, London, N1 7AL7, Rydon Street, London, N1 7AL
• Sold Oct 2024£2,150,000 | 4 Bed House38, St. Paul Street, London, N1 7AB38, St. Paul Street, London, N1 7AB
• Sold Aug 2024£1,980,000 | 4 Bed House7, St. Paul Street, London, N1 7AH7, St. Paul Street, London, N1 7AH
• 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 Mar 2024£1,750,000 | 4 Bed House31, St. Paul Street, London, N1 7DJ31, St. Paul Street, London, N1 7DJ
• 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 May 2023£1,830,500 | 3 Bed House9, Rees Street, London, N1 7AR9, Rees Street, London, N1 7AR
• Sold Dec 2022£1,850,000 | 4 Bed House37, St. Paul Street, London, N1 7DJ37, St. Paul Street, London, N1 7DJ
• 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 Sep 2015£1,917,000 | 4 Bed House5, Union Square, London, N1 7DH5, Union Square, London, N1 7DH
• Sold Aug 2014£1,740,000 | 4 Bed House37, Arlington Square, London, N1 7DP37, Arlington Square, London, N1 7DP
• Sold Jul 2013£1,470,000 | 4 Bed House10, Union Square, London, N1 7DH10, Union Square, London, N1 7DH

Agents in our network have reported 7 lettings within 260 metres of 4, 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 4, Union Square as the 16th largest and the 11th most expensive of the 33 addresses on Union Square, London, N1.

Against the N1 postcode district average, it is £1.374m 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.