Planning application
20/AP/3810
18 Blackwater Street London Southwark SE22 8RS
Proposal
Certificate of lawfulness (Proposed) for the construction of a dormer extension in the rear roof slope and rooflights in the front roof slope
As published by the council, reference 20/AP/3810
Timeline
Dates from the published record
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22 Dec 2020
Received by Southwark
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23 Dec 2020
Validated
Checked as complete and ready for consideration.
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12 Feb 2021
Decision issued: Certificate of Lawfulness Prop- GRANTED
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4 Aug 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
-
26/AP/1567 Awaiting decision
132 Lordship Lane London Southwark SE22 8HD
Change of use of ground floor back to shop (Class E) from use as a residential flat (Class C3).
-
22/AP/3697 Granted
Flat 5 Kent House Bassano Street London Southwark SE22 8RX
Details of condition 4 (Construction method for roof surfacing) pursuant to planning permission 21/AP/3725 dated 24/02/22 for 'Alterations to the existing second floor roof terrace to create a multi-levelled open space with an open timber pergola, balustrades and decking, and the installation of vertical timber cladding and an enlarged window and door to the rear elevation, and one rooflight to the flat roof of the three storey building.'
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26/AP/1582 Awaiting decision
First Floor Flat 152 Lordship Lane London Southwark SE22 8HB
Construction of an L-shaped dormer roof extension with roof terrace to the rear, raising the ridge by 275mm, raising the outrigger eaves height and installation of two rooflights to front roof slope.
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26/AP/1595 Awaiting decision
19 Bassano Street London Southwark SE22 8RU
Minor material amendment of planning permission ref no: 25/AP/3345 (Construction of a single storey ground floor rear extension) Amendment sought: - Facing wall nib on boundary line with number 17 adjusted to 560mm width. - Skylight rotated by 90 degrees. - Planter omitted. - Skylight omitted - Facing wall nib abutting the boundary with number 21 adjusted to 880mm.
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22/AP/1526 Granted
116B Lordship Lane London SE22 8HD
Details of condition 3 (External Materials) as required by planning permission 19/AP/0387 for -'Erection of an additional storey to the Bassano Street and Lordship Lane facades at second floor level; and an additional storey to existing roof at 3rd floor level to the rear of the building; to create an 5 residential units at second and third floors (3 x two Bedroom and 2 x one bedroom apartments) with associated outdoor amenity spaces, refuse storage and secure bicycle storage.'
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26/AP/1865 Awaiting decision
22 Chesterfield Grove London Southwark SE22 8RW
Construction of an L-shaped dormer extension with Juliet balcony, together with raising ridge by 278mm, installation of 3no. rooflights to front roof slope, single-storey ground-floor side and rear extension, replacement of windows and relocation of side-facing window at first-floor level
Other lawful development applications
In Southwark
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26/AP/1647 Granted
7 Medlar Street London Southwark SE5 0JU
Certificate of lawfulness (proposed) for the construction of an L-shaped rear dormer extension and installation of 2no. rooflights to the front roof slope
-
26/AP/2189 Awaiting decision
Surrey Square Park Surrey Square London Southwark SE17 2JX
Certificate of Lawfulness (existing) for refurbishment and reconfiguration of the existing children's playground and landscape improvements including new pathways and planting within Surrey Square Park.
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26/AP/2168 Awaiting decision
150A Lower Road London Southwark SE16 2UG
Certificate of lawfulness (proposed) for the change of use of a single dwellinghouse (Use Class C3) to a House in Multiple Occupation (Use Class C4) occupied by three unrelated individuals.
-
26/AP/1618 Granted
252 Barry Road London Southwark SE22 0JS
Certificate of lawful development (proposed) for the construction of a rear dormer extension.
-
26/AP/1577 Granted
Residence Inn By Marriott London Bridge 201-211 Long Lane London SE1 4PN
Certificate of lawfulness (proposed) for undertaking of facade remedial works to remove combustible cladding materials and replace with a like-for-like non-combustible cladding with no change to the outer aesthetics of the building.