« Sold prices in NW3
23, BELSIZE SQUARE, LONDON, CAMDEN, GREATER LONDON, NW3 4HU £1,550,000
Last sale price
Approximate location (postcode centre). Map data © OpenStreetMap contributors.
Local planning constraints Conservation area Belsize
Planning designations from planning.data.gov.uk and Environment Agency flood-risk data, © Crown copyright and database right, under the Open Government Licence v3.0. Coverage is incomplete and depends on the local authority — absence here does not guarantee a property is unaffected. Always check official sources.
Schools nearby The nearest 10 schools within 10 miles, by straight-line distance from the postcode centre. These are not catchment areas — admissions depend on each school’s criteria, so check with the local council .
All-through · Independent · ages 4–13 · Selective (grammar) · Boys only · Church of England ·
website Independent schools are inspected by Ofsted or the ISI — school record All-through · Independent · ages 4–13 · Boys only
Independent schools are inspected by Ofsted or the ISI — school record All-through · Independent · ages 4–13
Independent schools are inspected by Ofsted or the ISI — school record Primary · Independent · ages 3–11 · Girls only · Church of England ·
website Independent schools are inspected by Ofsted or the ISI — school record Primary · Independent · ages 4–11 · Selective (grammar) · Girls only ·
website Independent schools are inspected by Ofsted or the ISI — school record All-through · Independent · ages 4–19 · Selective (grammar) · Girls only ·
website Independent schools are inspected by Ofsted or the ISI — school record Secondary · Independent · ages 13–19 ·
website Independent schools are inspected by Ofsted or the ISI — school record Primary · Council-maintained · ages 4–11 · Church of England ·
website Ofsted, Nov 2024 — graded by area, no overall grade:
Quality of education: Outstanding Behaviour: Outstanding Personal development: Outstanding Leadership: Outstanding
Primary · Council-maintained · ages 3–11 · Roman Catholic ·
website Ungraded inspection, Sept 2022: School remains Good
All-through · Independent · ages 3–16 ·
website Independent schools are inspected by Ofsted or the ISI — school record School details from Get Information About Schools (Department for Education). Inspection outcomes from Ofsted management information as at 30 September 2026; check the latest report on Ofsted’s website. Since November 2025 Ofsted report cards grade each area separately and give no overall grade. © Crown copyright, licensed under the Open Government Licence v3.0.
How this compares Averages cover every recorded sale in NW3 4HU (2015–2026) and are not adjusted for house-price changes over that period — where the market has risen, older sales pull the average below today’s values, so treat this as a rough guide rather than a like-for-like comparison.
£1,024,945
Average in NW3 4HU (2015–2026)
£1,024,945
Average on BELSIZE SQUARE (2015–2026)
+51%
above postcode average
Full transaction history This address covers more than one registered unit or interest (for example separate flats, or a leasehold and the freehold). The Property column shows each one. These are separate Land Registry entries, not repeat sales of one home.
Property Date sold Price paid Property type Tenure New build TOP FLOOR MAISONETTE, 23 30 November 2022 £1,550,000 Flat/Maisonette Leasehold No FIRST FLOOR FLAT, 23 2 March 2021 £870,000 Flat/Maisonette Leasehold No GROUND FLOOR FLAT, 23 18 June 2020 £645,000 Flat/Maisonette Leasehold No GARDEN FLAT, 23 3 February 2015 £945,000 Flat/Maisonette Leasehold No
Recent sales nearby £862,500
27D, BELSIZE SQUARE, LONDON, CAMDEN, GREATER LONDON, NW3 4HU
Flat/Maisonette Jan 2026
£594,000
27C, BELSIZE SQUARE, LONDON, CAMDEN, GREATER LONDON, NW3 4HU
Flat/Maisonette May 2024
£675,000
27B, BELSIZE SQUARE, LONDON, CAMDEN, GREATER LONDON, NW3 4HU
Flat/Maisonette May 2024
£1,000
27, BELSIZE SQUARE, LONDON, CAMDEN, GREATER LONDON, NW3 4HU
Other May 2024
£2,034,280
GARDEN FLAT, 26, BELSIZE SQUARE, LONDON, CAMDEN, GREATER LONDON, NW3 4HU
Flat/Maisonette Dec 2019
£512,500
FLAT E, 30, BELSIZE SQUARE, LONDON, CAMDEN, GREATER LONDON, NW3 4HU
Flat/Maisonette Jun 2018
More sold prices in NW3 Sold prices in LONDON