21 Russell Square Camden WC1B 5EA
External alterations including demolition and replacement of existing single storey rear mews building to No.23, excavation of extended basement level and associated landscaping works.
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Progress
Application details
- Reference
- 2021/2019/P
- Local authority
- Camden
- Postcode
- WC1B 5EA
- Ward
- Bloomsbury (Pre May 2022)
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 27 Apr 2021
- Validated
- 27 Apr 2021
- Comments close
- 25 Mar 2022
- Target decision
- 27 Mar 2023
- Decided
- 27 Mar 2023
Estimated project value
£670k–£1115k
Based on the 275m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 275m²
Recently sold nearby
New owners, recently moved in. First work on a house usually follows within months of completing. 8 recent sales are listed below.
- FLAT 28, CRANFIELD HOUSE, 97 - 107 SOUTHAMPTON ROW, LONDON, WC1B 4HHOther · Leasehold · Not a standard market sale · £470,0003 months ago8 Jun 2026
- FLAT 15, MUSEUM MANSIONS, 63A GREAT RUSSELL STREET, LONDON, WC1B 3BJFlat or maisonette · Leasehold · £1,650,0008 months ago14 Jan 2026
- PREMISES AT, 112 GREAT RUSSELL STREET, LONDON, WC1B 3NQOther · Leasehold · Not a standard market sale · £217,000,0008 months ago9 Jan 2026
- FLAT 60, BEDFORD COURT MANSIONS BEDFORD AVENUE, LONDON, WC1B 3ADOther · Leasehold · Not a standard market sale · £2,350,0008 months ago19 Dec 2025
- FLAT 12, BLOOMSBURY MANSIONS, 13 - 16 RUSSELL SQUARE, LONDON, WC1B 5ERFlat or maisonette · Leasehold · £679,0008 months ago17 Dec 2025
- FLAT 8, HAMILTON HOUSE, 81 SOUTHAMPTON ROW, LONDON, WC1B 4HAFlat or maisonette · Leasehold · £450,0009 months ago24 Nov 2025
- FLAT 5, 70 GREAT RUSSELL STREET, LONDON, WC1B 3BNFlat or maisonette · Leasehold · £750,00010 months ago14 Nov 2025
- PENTHOUSE 6, BEDFORD COURT MANSIONS BEDFORD AVENUE, LONDON, WC1B 3AEFlat or maisonette · Leasehold · £1,250,00010 months ago24 Oct 2025
Homes here go for about £750,000 — the median of the last 5 market sales in WC1B (the wider postcode district), £450,000 to £1,650,000.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
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