Cypress Tree House Dulwich Common London Southwark SE21 7EU
Approved on 5 August 2026
Council decision: Variation Minor Material Changes Granted6 conditions
Proposal
Variation of Condition 1 (approved plans) pursuant to planning permission ref: 25/AP/1310 dated 30.07.2025 for 'Construction of a single storey extension in the rear garden, installation of solar panels to the existing outrigger roof, new dormer windows to the rear and side roof light to the main roof, replacement of existing windows and door, alterations to some windows and doors, and replacement of the existing lean to shed roof.' Amendment sought: 1. Addition of a roof light to main roof flat roof 2. Repositioning of dormers
- Received
- 18 May 2026
- Council
- London Borough of Southwark
- ReceivedReceived18 May
- ValidatedValidated28 May
- Consult.Consultation
- TargetTarget Date
- DecidedDecided5 Aug
Decided in 69 days
About this application
This is a planning application for a dormer extension at Cypress Tree House Dulwich Common London Southwark SE21 7EU. Southwark has handled 7,761 applications of this type. This one was decided in 69 days, 3 weeks longer than Southwark's typical decision time. The site is in the Dulwich Wood conservation area, with 1 listed building nearby. There has been 1 other application at this address. We hold 1,063 applications in total for the SE21 postcode area.
Application details
- Postcode
- SE21 7EU
Planning application dates
- Date validated
- 28 May 2026
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Dulwich Wood
- Listed building: Grade II: Queen Mary Gate to Dulwich Park and Attached RailingsOn or next to this site
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (21)
flood storage areas, Article 4 directions, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Associated applications
- 202628 May
Variation of Condition 1 (approved plans) pursuant to planning permission ref: 25/AP/1310
This applicationApprovedVariation of conditions (s73)26/AP/1418 - 20257 Aug
Details of Condition 4 -Foundation details within the influencing distance of local trees as required by…
ApprovedDischarge of conditions25/AP/2253 - 202513 May
Construction of a single storey extension in the rear garden, installation of solar panels to the existing…
ApprovedHouseholderPart of25/AP/1310
Source: Southwark
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- Cypress Tree House Dulwich Common London Southwark SE21 7EU25/AP/2253 · ConditionsApproved0.0 mi
- 20 Frank Dixon Way London Southwark SE21 7ET24/AP/1762 · TreesApproved0.0 mi
- 19 Frank Dixon Way London Southwark SE21 7ET24/AP/1211 · TreesApproved0.0 mi
- 15 Frank Dixon Way London Southwark SE21 7ET23/AP/3587 · TreesApproved0.1 mi
- London Borough Of Southwark Sports Club Dulwich Common London Southwark SE21 7EU23/AP/2279 · FullWithdrawn0.1 mi
For applicants and trades
For the applicant
Need an arboricultural method statement? Arboriculturists near this site
Condition 3 on the decision asks for this.
- 1.3 miLondon
- 3.1 miLondonRTPI
- 4.1 miLondonRTPI
Nearest first, within 25 miles of the site. Every firm is listed free.
Contractors near this project
Find contractors for extensions near this site- Nova Coat & PlasterVerifiedStreatham, LondonRenovations & RefurbishmentsPlastering2.3 mi
- Bello Electrics LTDVerifiedElectrician4.0 mi
- S & M Solutions Ltd | Design and Build ContractorVerifiedLondonExtensionsLoft Conversions5.1 mi
- Avent Roofing ServicesVerifiedWestminsterRoofing5.3 mi
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