Planning application
DC/25/142397
27 CASSLEE ROAD, LONDON, SE6 4XH
Proposal
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 hip-to-gable and rear dormer roof extensions, installation of two frontslope rooflights and installation of a side elevation window at 27 Casslee Road, SE6.
As published by the council, reference DC/25/142397
Timeline
Dates from the published record
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10 Dec 2025
Received by Lewisham
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11 Dec 2025
Validated
Checked as complete and ready for consideration.
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5 Feb 2026
Decision issued: Granted
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25 Jul 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
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DC/26/143821 Granted
23 MONTACUTE ROAD, LONDON, SE6 4XL
Demolition of rear outrigger, bay window, and outbuilding and replacement with a single storey rear extension at 23 Montacute Road, SE6.
-
DC/20/115342 Granted
17 MONTACUTE ROAD, LONDON, SE6 4XL
The construction of a single storey rear extension at 17 Montacute Road, SE6, together with a rear roof extension and associated internal works.
-
DC/19/114834 Refused
68 MONTACUTE ROAD, LONDON, SE6 4XJ
Demolition of the existing garage and construction of a replacement building in the rear garden at 68 Montacute Road SE6 including partial excavation of the rear garden.
-
DC/19/114529 Granted
68 MONTACUTE ROAD, LONDON, SE6 4XJ
Lawful Development Certificate (Proposed) for the construction of a hip-to-gable roof extension with rear dormer and insertion of two rooflight to front roofslope, at 68 Montacute Road, SE6 together with the removal of two chimney stacks.
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DC/26/143052 Granted
18 BLYTHE HILL, LONDON, SE6 4UL
Replacement of all existing uPVC and timber framed windows with new double glazed uPVC framed windows; replacement of all existing timber door units with new composite and uPVC door units to 18 Blythe Hill, SE6.
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DC/26/143419 Granted
11C BLYTHE HILL, LONDON, SE6 4UL
Construction of a rear roof dormer and two frontslope rooflights to 11C Blythe Hill, SE6.
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
-
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.