Planning application
DC/26/144419
33 GARTHORNE ROAD, LONDON, SE23 1EP
Proposal
Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Classes B and C of Schedule 2, Part 1 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the construction of an L-shaped dormer and installation of two front rooflights at 33 Garthorne Road, SE23
As published by the council, reference DC/26/144419
Timeline
Dates from the published record
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19 Jun 2026
Received by Lewisham
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22 Jun 2026
Validated
Checked as complete and ready for consideration.
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25 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Lewisham for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
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
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DC/22/129617 Refused
23 AGNEW ROAD, LONDON, SE23 1DH
Application for a Lawful Development Certificate (existing) submitted under Section 191 of the Town & Country Planning Act 1990 (as amended) for the alteration and conversion of the first floor to form two self-contained flats (Flats 4 and 5) at 23 Agnew Road SE23.
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DC/21/121010 Refused
35A AGNEW ROAD, LONDON, SE23 1DH
The construction of an outbuilding in the rear garden of 35A Agnew Road SE23.
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DC/19/114871 Granted
35A AGNEW ROAD, LONDON, SE23 1DH
The construction of a single storey infill extension to the rear of 35A Agnew Road SE23
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DC/26/144736 Awaiting decision
27 ACKROYD ROAD, LONDON, SE23 1DN
Application for Prior Approval under Schedule 2, Part 1, Class A of the Town and Country Planning (General Permitted Development) Order 2015 (as amended) for the construction of a single storey side infill extension with a depth of 6.0m, a maximum height of 3.3m and an eaves height of 2.4m at 27 Ackroyd Road SE23.
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DC/21/121489 Granted
34 AGNEW ROAD, LONDON, SE23 1DJ
Certificate Of Lawful Development (Proposed) in respect construction of the Erection of a 3m long single storey rear extension to a terraced house at 34 Agnew Road SE23.
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DC/20/115356 Granted
26 WHATMAN ROAD, LONDON, SE23 1EZ
Lawful development certificate (proposed) for the construction of rear roof extensions, together with the installation of two rooflights in the front roof slope at 26 Whatman Road, SE23
Other lawful development applications
In Lewisham
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DC/26/144205 Granted
350 DOWNHAM WAY, BROMLEY, BR1 5NR
Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Classes B and C of Schedule 2, Part 1 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the construction of a hip-to-gable extension, a rear dormer extension, and the installation of two roof lights on the front elevation at 350 Downham Way, BR1
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DC/26/143757 Granted
74 FARMFIELD ROAD, BROMLEY, BR1 4NG
Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) Classes B and C of Schedule 2, Part 1 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the hip-to-gable roof conversion, construction of a rear roof extension and installation of front rooflights at 74 Farmfield Road, BR1.
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DC/26/144149 Granted
11 AMERSHAM ROAD, LONDON, SE14 6QQ
Application for a Lawful Development Certificate (Existing) submitted under Section (191) of the Town & Country Planning Act 1990 (as amended) for the continued use of one front and three rear roof terraces and alterations to the front and rear elevations at 11 Amersham Road, SE14.
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DC/26/144811 Awaiting decision
26 ENTERPRIZE WAY, LONDON, SE8 3PJ
Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Classes A, B, C and D of Schedule 2, Part 1 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the construction of a single-storey rear extension, replacement of windows, rear dormer extension, a new rooflight and alterations to the front porch at 26 Enterprize Way.
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DC/26/144128 Refused
11 WELLMEADOW ROAD, LONDON, SE13 6SY
Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Classes A, B and C of Schedule 2, Part 1 of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the construction of a loft conversion with a rear roof dormer, raising of the parapet walls and three front slope rooflights at 11 Wellmeadow Road, SE13.