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20 Wellington Avenue Westcliff-on-sea Essex SS0 9XB

26/00342/CLPCertificate of Lawful Use Dev ProposedApproved
Outline / PiP

Approved on 10 April 2026

Council decision: Grant Lawful Dev Certificate (Proposed)Delegated (officer decision)

Approximate site (title boundary)
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

Dormer to rear to form habitable accommodation in the loftspace and two rooflights to roofslope (certificate of lawful development - proposed)

Received
14 March 2026
Decision level
Delegated (officer decision)
Ward
Blenheim Park
Agent
Hedgehog Architects
  1. Received14 Mar
  2. Validated19 Mar
  3. Consult.
  4. Target14 May
  5. Decided10 Apr

Decided in 22 days (council typically 56)

About this application

This is an outline application for a dormer extension at 20 Wellington Avenue Westcliff-on-sea Essex SS0 9XB. Southend has handled 587 applications of this type. This one was decided in 27 days, 4 weeks quicker than Southend's typical decision time. There has been 1 other application at this address. In the past year there have been 40 applications across Blenheim Park. We hold 1,220 applications in total for the SS0 postcode area.

82% of outline applications at Southend-on-Sea City Council were approved. Across all application types, the council typically decides in about 8 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
SS0 9XB
Application type
Certificate of Lawful Use Dev Proposed
Scale / size
Small

Planning application dates

Date validated
19 March 2026
Target decision date
14 May 2026

Applicant and agent

Agent
Hedgehog Architects
Agent address
28 Lime Avenue Leigh-on-Sea Essex SS9 3PA

Planning decision

Statutory period
56 days

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

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.

Associated applications

  1. 2026
    14 Mar

    Erect single storey rear extension projecting 3.2m beyond the existing rear wall of the dwelling, 2.73m high…

    GPD Non ConditionalGeneral Permitted Dev (Extensions)Filed alongside26/00340/GPDE
  2. 2026
    14 Mar

    Dormer to rear to form habitable accommodation in the loftspace and two rooflights to roofslope (certificate…

    This applicationApprovedOutline26/00342/CLP

Source: Southend

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