21 Lansdowne Avenue Leigh-on-sea Essex SS9 1LJ
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
Erect single storey rear extension projecting 5.5m beyond the existing rear wall of the dwelling, 2.7m high to eaves and with a maximum height of 3m
- Received
- 26 July 2026
- Decision due
- 7 September 2026
- Decision level
- Delegated (officer decision)
- Public comments
- 0 · last counted 14 October 2026
- Council
- Southend-on-Sea City Council
- Ward
- Chalkwell
- Agent
- Leigh Planning Services Ltd
- ReceivedReceived26 Jul
- ValidatedValidated27 Jul
- Consult.Consultation18 Aug
- TargetTarget Date7 Sep
- DecidedDecided
About this application
This is a planning application for a single storey rear extension at 21 Lansdowne Avenue Leigh-on-sea Essex SS9 1LJ. Southend has handled 5,232 applications of this type. It has been with the council since 26 July 2026 and is still awaiting a decision. There are no previous applications recorded at this address. In the past year there have been 58 applications across Chalkwell. We hold 2,526 applications in total for the SS9 postcode area.
Application details
- Postcode
- SS9 1LJ
- Application type
- General Permitted Dev (Extensions)
- Scale / size
- Small
Planning application dates
- Date validated
- 27 July 2026
- Last date for comments
- 18 August 2026
Applicant and agent
- Agent
- Leigh Planning Services Ltd
- Agent address
- 8 Ashley Street Sible Hedingham Halstead Essex CO9 3EH
Planning decision
- Decision
- GPD Non Conditional
- Case officer
- Mia Welch
- Statutory period
- 42 days
Site constraints
Designations that overlap or adjoin the site outline.
- Flood zone 1: Low probability (rivers and sea)
Not published by this council, so not checked: Article 4 directions. Ask the council if these matter.
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (22)
flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, 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.
Source: Southend
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Around this site
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For applicants and trades
Consultants on this application
- Leigh Planning Services Limited · Agent for this application
Contractors near this project
Find contractors for extensions near this site- Cjs Carpentry & ShopfittingVerifiedCanvey islandKitchen & BathroomRenovations & Refurbishments4.2 mi
- Dangate LimitedDamp Proofing & Timber Treatment Specialists0.1 mi
- CSJ ElectricalElectrician0.1 mi
- 1st Call Services0.2 mi
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