23, Union Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 23 Nov 2011.

The property is not connected to mains gas and has high performance glazing. It is heated using community scheme.

According to the Land Registry and our network of Estate Agents, there have been 48 sales of properties similar to 23, Union Square within a radius of 260 metres since 2013.

The most recent example is 11, Rydon Street, London, N1 7AL, a freehold house which sold for £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 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 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 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 Jun 2023£2,245,000 | 3 Bed House5 Union Wharf, Arlington Avenue, London, N1 7BL5 Union Wharf, Arlington Avenue, London, N1 7BL
• Sold Dec 2022£1,850,000 | 4 Bed House37, St. Paul Street, London, N1 7DJ37, St. Paul Street, London, N1 7DJ
• Sold Aug 2022£1,700,000 | 4 Bed House7 Union Wharf, Arlington Avenue, London, N1 7BL7 Union Wharf, Arlington Avenue, London, N1 7BL
• Sold Aug 2022£2,375,000 | 4 Bed House12, Union Square, London, N1 7DH12, Union Square, London, N1 7DH
• Sold Sep 2021£1,350,000 | 4 Bed House42, St. Paul Street, London, N1 7DA42, St. Paul Street, London, N1 7DA
• 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 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£1,470,000 | 4 Bed House10, Union Square, London, N1 7DH10, Union Square, London, N1 7DH

Our network of Estate Agents reports 7 lets within 260 metres of 23, Union Square over the last 2 years.

Most recently, Flat 5, 14-22, Coleman Fields, London, N1 7AD, a leasehold flat, was 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.

Union Square, London, N1 has a total of 33 addresses. According to our analysis of all the public data, 23, Union Square is the 24th largest and the 23rd most expensive property on the street.

When compared to the postcode district it is £1.374m more expensive than the average property in N1.

• 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

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.