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Planning application

26/00594/CLP

34 St Clement's Avenue Leigh-on-sea Essex SS9 3BL

Granted Southend-on-Sea Certificate of Lawfulness (Proposed)

Proposal

Erect single storey rear extension, install window and access door to side elevation

As published by the council, reference 26/00594/CLP

Timeline

Dates from the published record

  1. 29 Apr 2026

    Received by Southend-on-Sea

  2. 7 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 30 Jun 2026

    Decision issued: Grant Lawful Dev Certificate (Proposed)

  4. 23 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.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 21/01400/GPDE Decided

    244 Manchester Drive Leigh-on-sea Essex SS9 3ES

    Erect single storey rear extension, projecting 4m beyond the existing rear wall of the dwelling, 3m high to eaves and with a maximum height of 3m

    2 Jul 2021 108m away
  • 24/01467/FULH Granted

    148 Station Road Leigh-on-sea Essex SS9 3BW

    Erect single storey rear extension with a flat roof and glass roof light, install vehicle crossover onto Station Road

    12 Sep 2024 130m away Householder
  • 26/00553/FULH Granted

    52 Tankerville Drive Leigh-on-sea Essex SS9 3DF

    Install dormer to rear and rooflights to front to create habitable accommodation in the loftspace, erect single storey rear extension and alter elevations

    23 Apr 2026 149m away Householder
  • 22/02284/FUL Granted

    West Leigh Baptist Church Lymington Avenue Leigh-on-sea Essex SS9 2AJ

    Erect two storey extension to rear of church, form central courtyard with landscaping, lay out parking spaces, mobility scooter and cycle store and form new vehicle crossovers onto Lymington Avenue

    25 Nov 2022 176m away Full applications
  • 26/00914/AD Status unknown

    West Leigh Baptist Church Lymington Avenue Leigh-on-sea Essex SS9 2AJ

    Application for approval of details pursuant to conditions 11 (travel plan), 13 (construction method statement) and 17 (noise mitigation measures) of planning permission 25/00495/AMDT dated 11/06/2026

    10 Jul 2026 182m away Conditions
  • 26/00686/PA62 Refused

    1134 London Road Leigh-on-sea Essex SS9 2AJ

    Demolition of existing garages and ancillary outbuildings and erection of detached building comprising 4 self-contained flats (Class C3) (Prior Approval)

    20 May 2026 188m away

In Southend-on-Sea

  • 26/00841/CLP Granted

    52 Bellhouse Road Eastwood Leigh-On-Sea Essex SS9 5NL

    Install rear dormer to create habitable accommodation in the loftspace and alter side elevation (Lawful Development Certifcate - Proposed)

    24 Jun 2026 Lawful development
  • 26/00818/CLP Granted

    20 Carlton Drive Leigh-on-sea Essex SS9 1DE

    Dormers to sides and juliette balcony to rear to form habitable accommodation in loftspace (certificate of lawful development - proposed)

    19 Jun 2026 Lawful development
  • 26/00741/CLE Granted

    57 - 59 Elm Road Leigh-on-sea Essex SS9 1SP

    Confirmation that planning permission 16/01572/FUL as varied by 18/01443/AMDT has been lawfully implemented (Certificate of Lawful Development - Existing)

    2 Jun 2026 Lawful development
  • 26/00746/CLP Granted

    21 Shanklin Drive Westcliff-on-sea Essex SS0 9XU

    Removal of chimney stack on rear roof slope, erect dormer to rear to create habitable accommodation in roof space, two rooflights to front roof slope, alterations to elevations (Lawful Development Certificate - Proposed)

    2 Jun 2026 Lawful development
  • 26/00978/CLP Status unknown

    90 Tudor Gardens Shoeburyness Southend-on-sea Essex SS3 9JH

    Hip to gable roof extension and dormer to rear and rooflights to front to form habitable accommodation in the loftspace (Certificate of Lawful Development - Proposed)

    24 Jul 2026 Lawful development