55 Calton Avenue London Borough of Southwark SE21 7DF
Proposed works to replace the existing conservatory with a new single storey side infill extension; increase the height of the rear outrigger roof to create a new bedroom within the attic space, with associated roof lights. The reconfiguration of the outrigger's first floor window and door to the terrace, and the replacement of the second floor rear dormer with a wider dormer window. Window replacements to front, rear and side elevations.
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Progress
Application details
- Reference
- 23/AP/2601
- Local authority
- Southwark
- Postcode
- SE21 7DF
- Ward
- DUVI
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 20 Sept 2023
- Validated
- 20 Sept 2023
- Comments close
- 16 Oct 2023
- Target decision
- 14 Nov 2023
- Decided
- 8 Nov 2023
Estimated project value
£6k–£12k
Based on the 3.6m² of floor area stated in the application, at inner London rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².
Floor area gained: 3.6m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.
- 91 CALTON AVENUE, LONDON, SE21 7DFDetached · £3,500,00011 months ago3 Oct 2025
- 65 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £3,485,00022 months ago11 Oct 2024
- 77 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £3,100,0002 years ago7 Aug 2024
- 83 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £3,440,0002 years ago27 Oct 2023
- 87 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £3,400,0013 years ago25 Apr 2023
- 51 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £2,600,0005 years ago16 Aug 2021
- 99 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £3,525,1005 years ago20 Jan 2021
- 55 CALTON AVENUE, LONDON, SE21 7DFSemi-detached · £2,700,0005 years ago28 Oct 2020
Homes here go for about £3,420,001 — the median of the last 8 market sales in SE21 7DF, £2,600,000 to £3,525,100.
Contains HM Land Registry data © Crown copyright and database right 2025. 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.
Nearby applications
- 55 Calton Avenue London Borough of Southwark SE21 7DFPermittedNext door
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- 55 Calton Avenue London Borough of Southwark SE21 7DFPermittedNext door
- 57 Calton Avenue London Borough of Southwark SE21 7DFPermittedNext door
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