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Planning application

33 Lansdowne Avenue Leigh-on-sea Essex SS9 1LJ

Awaiting decision Southend-on-Sea 26/01275/CLP Lawful development

Works: Extension Demolition Small domestic

Read from the description, not a valuation. How we read the register

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Demolish conservatory, single storey rear extension, alter elevations, remove rear chimney stack, install detached outbuilding and heat pump to rear garden (Lawful Certificate Development - Proposed)

As published by the council, reference 26/01275/CLP

Application record

Reference
26/01275/CLP
Category
Lawful development
Status
Registered
Postcode
SS9 1LJ

Site history

Applications at this address on the Southend-on-Sea register

This site has had 2 applications.

  • 26/01309/FULH Awaiting decision

    33 Lansdowne Avenue Leigh-on-sea Essex SS9 1LJ

    Raise ridge to form habitable accommodation in loftspace with dormer to rear and rooflights to front, install solar PV panels to roof, demolish conservatory, erect single storey rear extension, alter elevations, remove rear chimney stack, erect detached outbuilding and heat pump to rear garden

Timeline

Dates from the published record

  1. 30 Sep 2026

    Added to PlanIndex

  2. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

    Southend-on-Sea took a median of 59 days over the applications it decided in the last year.

What happens while it is decided

This application is with Southend-on-Sea for determination, against a statutory target of eight weeks. Over the last year Southend-on-Sea decided lawful development applications in a median of 56 days. More in our guide to how long planning decisions take.

About lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 21 Lansdowne Avenue Leigh-on-sea Essex SS9 1LJ

    26/01120/CLP Submitted 22 Aug 2026 50 yards away

    85% historically approved · decision due ~19 Oct

    Single storey rear extension (certificate of lawful development - proposed)

    Decided Lawful development Extension
    Small domestic

  • 21 Lansdowne Avenue Leigh-on-sea Essex SS9 1LJ

    26/00986/CLP 50 yards away

    85% historically approved

    Install dormer to rear and rooflights to front to form habitable accommodation in the loftspace (Lawful Development Certificate - Proposed)

    Decided Lawful development Loft or dormer

  • 33 Lansdowne Avenue Leigh-on-sea Essex SS9 1LJ

    26/01309/FULH 50 yards away

    86% historically approved

    Raise ridge to form habitable accommodation in loftspace with dormer to rear and rooflights to front, install solar PV panels to roof, demolish conservatory, erect single storey rear extension, alter elevations, remove rear chimney stack, erect detached outbuilding and heat pump to rear garden

    Awaiting decision New dwelling Extension +2
    Small domestic

  • 52 Woodfield Park Drive Leigh-on-sea Leigh-On-Sea Essex SS9 1LW

    21/01123/AD Submitted 26 May 2021 50 yards away

    Application for approval of details pursuant to condition 03 (details of materials), condition 07 (details of energy efficiency) and condition 09 (details of hard and soft landscaping) of planning permission 19/02239/FUL dated 06.02.2020

    Granted Conditions 7 docs

  • 31 Fernleigh Drive Leigh-on-sea Essex SS9 1LG

    24/01820/FULH Submitted 14 Nov 2024 50 yards away

    Erect first floor rear extension and extend first floor rear balcony, install external spiral staircase to rear (amended proposal)

    Granted Householder Extension
    Domestic

  • 53A Fernleigh Drive Leigh-on-sea Essex SS9 1LG

    24/01655/FUL Submitted 23 Oct 2024 50 yards away

    Extend existing vehicle crossover onto Fernleigh Drive

    Granted Full applications

In Southend-on-Sea

  • 26/01070/CLP Granted

    58 Ronald Park Avenue Westcliff-on-sea Essex SS0 9QN

    Dormer to rear to form habitable accommodation in the loft space and rooflights to front (certificate of lawful development - proposed)

    Received 11 Aug, published by the council 14 Aug 2026 Lawful development
  • 26/01065/CLP Granted

    1132 London Road Leigh-on-sea Essex SS9 2AJ

    Dormer to rear and rooflights to front to form habitable accommodation in the loftspace and single storey side/rear extension (certificate of lawful development - proposed)

    Received 10 Aug, published by the council 14 Aug 2026 Lawful development
  • 26/01018/CLP Refused

    92 Vardon Drive Leigh-on-sea Essex SS9 3SQ

    Hip to gable roof extension with dormer to rear and rooflights to front to form habitable accommodation in the loftspace (certificate of lawful development - proposed)

    Received 30 Jul, published by the council 8 Aug 2026 Lawful development
  • 26/01008/CLP Granted

    61 Flemming Avenue Leigh-on-sea Essex SS9 3AN

    Hip to gable loft conversion, rooflights to front, and dormer to rear with Juliet balcony to create habitable accommodation in roof space (Lawful Development Certificate - Proposed).

    Received 29 Jul, published by the council 8 Aug 2026 Lawful development
  • 26/01020/CLP Granted

    66 Marlborough Road Southend-on-sea Essex SS1 2UD

    Single storey side extension (Lawful Development Certificate - Proposed)

    Received 31 Jul, published by the council 8 Aug 2026 Lawful development