Planning application
129 Court Lane London Southwark SE21 7EE
Works: Extension Demolition Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Part demolition of an existing rear extension to erect a larger single-storey rear extension.
As published by the council, reference 25/AP/3435
Application record
- Reference
- 25/AP/3435
- Type
- Householder Application
- Status
- Granted
- Decision
- Granted As published: Householder - GRANTED
- Received
- 25 Nov 2025
- Validated
- 8 Dec 2025
- Decided
- 26 Jan 2026
- Ward
- Dulwich Village
- Parish
- Dulwich
- Decision by
- Delegated Panel - Simple
- Postcode
- SE21 7EE
Site history
Applications at this address on the Southwark register
This site has had 2 applications since 2022: 2 approved, 0 refused.
-
22/AP/3372 Granted
129 Court Lane London Southwark SE21 7EE
Certificate of lawful development (proposed) for the installation of a garden studio/shed
Timeline
Dates from the published record
-
25 Nov 2025
Received by Southwark
-
8 Dec 2025
Validated
Checked as complete and ready for consideration.
-
26 Jan 2026
Decision issued: Householder - GRANTED
-
10 Aug 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
Studio Hei Architects Agent, an architecture practice
15 applications on PlanIndex · across 5 councils
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See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
20 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
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Open the documentsWhat this grant of permission means
Southwark granted permission on 26 January 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
131 Court Lane London Southwark SE21 7EE
Front and rear garden improvements including landscaping, parking, storage and new fencing.
Granted Householder 41 docsDomestic -
131 Court Lane London Southwark SE21 7EE
95% historically approved · decision due ~10 Dec
Replacement of existing single-storey rear extension with a new single-storey full-width rear extension, replacement of the rear dormer with two dormers at loft level, renewal of roof tiles, and erection of a single-storey garden outbuilding.
Awaiting decision Householder Extension Loft or dormer +1 14 docsSmall domestic -
135 Court Lane London Southwark SE21 7EE
Ornamental Cypress tree approximately 6m in height situated on left hand side boundary of the front garden. Remove and the stump ground out.
Granted Trees 7 docs -
117 Court Lane London Southwark SE21 7EE
Fell and remove dangerous Birch tree (large limb snapped out) significant hollow within trunk, situated in the front garden, including removing and grind out of rootball. Intend to replant a Laburnum x Vossii in its place.
Granted Trees 10 docs -
145 Court Lane London Southwark SE21 7EE
95% historically approved · decision due ~14 Jan
A full house renovation including a lower-ground floor with front and rear lightwells, construction of a ground-floor rear extension, internal alterations on all floors, refurbishment of the existing elevations and windows, alterations to the loft including revised staircase and refurbished dormer, and installation of an air source heat pump.
Awaiting decision Householder Extension Loft or dormer +1 20 docsDomestic -
145 Court Lane London Southwark SE21 7EE
95% historically approved · decision due ~26 Nov
Certificate of lawfulness (proposed) for the demolition of the existing outbuilding and toolshed and the construction of a new outbuilding and toolshed.
Awaiting decision Lawful development Demolition 8 docs
Other householder applications
In Southwark
-
26/AP/2158 Granted
7 Alma Grove London Southwark SE1 5PY
Erection of a rear ground floor side extension with a framed glass roof and bi-folding rear doors. Replacement of windows and door. Alterations to external facade.
-
26/AP/2601 Awaiting decision
49 Henshaw Street London Southwark SE17 1PE
Demolition of existing rear extension and construction of part single, part two storey rear extension and erection of roof terrace on main roof with balustrades and glazed access hatch.
-
26/AP/2545 Awaiting decision
76 Shenley Road London Southwark SE5 8NQ
Construction of a single storey side and rear extension to the rear; construction of a rear dormer roof extension over the main roofslope and the installation of 3x rooflights to the front roofslope.
-
26/AP/2533 Awaiting decision
28 Tyrrell Road London Southwark SE22 9NE
Construction of rear extension.
-
26/AP/2517 Awaiting decision
65 Calton Avenue London Southwark SE21 7DF
Construction of a ground-floor side-rear extension with terrace reinstated above; alterations to the rear outrigger, including raising the eaves and ridge, removal of the chimney stack, replacement windows, and installation of two rooflights; enlargement of the existing rear dormer; erection of bin and bike stores in the front garden, together with new landscaping and a front boundary wall; installation of an EV charger to front elevation and removal of existing front porch door; removal of existing garden buildings and erection of a shed, sauna and pergola in the rear garden, together with new landscaping and decking.