18 Blackwater Street London Borough of Southwark SE22 8RS
Certificate of lawfulness (Proposed) for the construction of a dormer extension in the rear roof slope and rooflights in the front roof slope
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Progress
Application details
- Reference
- 20/AP/3810
- Local authority
- Southwark
- Postcode
- SE22 8RS
- Ward
- GOGR
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 23 Dec 2020
- Validated
- 23 Dec 2020
- Target decision
- 16 Feb 2021
- Decided
- 12 Feb 2021
Estimated project value
£37k–£100k
Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- FLAT 1, 2D BLACKWATER STREET, LONDON, SE22 8RSFlat or maisonette · Leasehold · £595,00018 months ago17 Apr 2025
- FLAT 3, 2D BLACKWATER STREET, LONDON, SE22 8RSFlat or maisonette · Leasehold · £402,5002 years ago28 Mar 2024
- 3 BLACKWATER STREET, LONDON, SE22 8RSTerraced · £1,240,0002 years ago20 Nov 2023
- FLAT 2, 2D BLACKWATER STREET, LONDON, SE22 8RSFlat or maisonette · Leasehold · £400,0003 years ago6 Oct 2023
- 8B BLACKWATER STREET, LONDON, SE22 8RSFlat or maisonette · Leasehold · £618,0003 years ago20 Sept 2023
- 12 BLACKWATER STREET, LONDON, SE22 8RSTerraced · £1,450,0003 years ago4 Nov 2022
- FLAT B, 2 BLACKWATER STREET, LONDON, SE22 8RSFlat or maisonette · Leasehold · £600,0004 years ago1 Sept 2022
- 6 BLACKWATER STREET, LONDON, SE22 8RSTerraced · £1,270,0004 years ago4 Jan 2022
Homes here go for about £609,000 — the median of the last 8 market sales in SE22 8RS, £400,000 to £1,450,000.
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
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- 12 Blackwater Street London Borough of Southwark SE22 8RSPermittedNext door
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- 153 Melbourne Grove London Borough of Southwark SE22 8SAPermittedAdjoining
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