23a, Claremont Square, N1 9LX

23a Claremont Square is a 104 m² / 1,119 sq ft flat in Angel. It sold for £1,010,000 in February 2025. Indexed forward to today's value, that sale is roughly £1,023k. Recent local prices imply a broad valuation context of £801k to £1,141k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.

Property data
Sale history
Date Paid price Annual growth After inflation
Feb 2025 £1,010,000 5.4% 2.8%
Dec 1999 £269,950 na na
Floor plan

Archived estate agent floor plan for 23a, Claremont Square.

Floorplan 23a
View floorplan
Internal area
104 square metres (1,119 square feet) according to latest EPC inspection
Price per internal area

This property sold for £9,711 per square metre (£902 per square foot) in Feb 2025. Indexed forward to today's value, this is roughly £9,840 per square metre (£914 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Feb 2025 £1,010,000 £9,712 £1,023,348 £9,840
Dec 1999 £269,950 £2,596 £1,128,920 £10,855

Calculated using the latest EPC internal area of 104 m². Earlier sale dates may not have had the same measured area available.

Valuation
The most recent sale price indexed forward to today's value is £1,023,348. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Angel are now selling for between £7,700 and £10,970 per square metre (£715 and £1,019 per square foot). Based on an internal area of 104 m², this implies a valuation between £801,000 and £1,141,000. Treat this as context only. For a valuation using hand-picked comparable sales, use the Advanced search tool — create a shortlist of similar condition homes, then export a valuation report.
Bedrooms
2
Type
Flat
Council tax band
na
Archived listings
History:
Archived sales listing for 23a Claremont Square. Advertised on multiple portals. It was added on 12/07/2023. It last appeared Oct 2023.
Photos:

There are 21 archived estate agent listing photos for 23a Claremont Square.

Photos for 23a Claremont Square
View photos
Advertiser remarks:
  • 2 bedrooms
  • 2 bathrooms
Planning applications
Planning ref:
November 2024 P2024/2933/LBC
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved with conditions
Address:
23A Claremont Square, London,
Description:
Regularisation of Unauthorised alterations at No. 23A Claremont Square, London, N1 9LX. The works that are being applied for were carried out done prior to the owners acquisition of the property and entailed creating a larger opening between dining room and winter garden.
Planning ref:
October 2018 P2018/2891/FUL
Type:
Full and householder planning application
Status:
Application approved with conditions
Address:
Flat A, 23 Claremont Square,. , London,
Description:
Replacement basement lightwell door (listed building consent ref: P2018/2927/LBC also submitted).
Planning ref:
October 2018 P2018/2927/LBC
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved with conditions
Address:
Flat A, 23 Claremont Square,. , London,
Description:
Replacement basement lightwell door (full planning application ref:P2018/2891/FUL also submitted)
Planning ref:
November 2003 P032276
Type:
Heritage application - conservation issues and listed buildings
Status:
Application approved with conditions
Address:
Flat A, 23, Claremont Square, Islington, London
Description:
Approval of details pursuant to conditions 3 and 6 of Listed Building Consent ref. P030356 dated 21/05/2003.
EPC Inspections
Summary:
10 January 2022 - energy performance certificate grade D
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
Rental
Tenure:
Social rental
Property type:
Maisonette , has 5 habitable rooms. Estimated year built before 1900
Area:
104 sqm (1,119 square foot) total internal area
Comments:
Walls: Solid brick, as built, no insulation (assumed). Roof: Pitched, no insulation (assumed). Heating: Boiler and radiators, mains gas.
Summary:
18 November 2010 - energy performance certificate grade C
Reason for EPC:
None
Tenure:
Owner-occupied
Property type:
None , has 4 habitable rooms. Estimated year built before 1900
Area:
86 sqm (926 square foot) total internal area
Comments:
Frequently asked questions

23a Claremont Square is worth whatever price a willing buyer and seller agree upon. However, the following can provide useful context.

  • HouseMetric estimates the most recent sale price indexed forward to today's value is £1,023,348.
  • Based on an internal area of 104 m² and recent prices in Angel, this implies a lower and upper quartile range from £801,000 to £1,141,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 23a Claremont Square last sold for £1,010,000 in February 2025.

HouseMetric shows 23a Claremont Square as 104 m² (1,119 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 2 bedrooms. Bedroom numbers can come from a previous estate agency listing, an EPC record, or an estimate based on the size of the property.

The latest EPC rating shown by HouseMetric is D, from an inspection dated 10 January 2022. EPC information comes from the public Energy Performance Certificate data for England and Wales.

23a Claremont Square is in postcode N1 9LX, in Angel. You can also view HouseMetric's sold-price page for Claremont Square, N1 9LX or analysis of the Angel property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 1 June 2026. Figures such as indexed values and local valuation ranges are calculated estimates for context, while official records can change as public datasets are updated.

For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.