304 South Avenue Southend-on-sea Essex SS2 4HR

1. 12 Mar 2026

   Received by Southend-on-Sea

2. 5 May 2026

   Decision issued: Grant Lawful Dev Certificate (Proposed)

3. 19 Aug 2026

   Added to PlanIndex

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.

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

• 335 South Avenue Southend-on-sea Essex SS2 4HR

  21/01330/FUL Submitted 29 Jun 2021 53m away

  Demolish existing buildings and erect detached dwellinghouse with associated amenity space and parking on land rear of 335 South Avenue

  Granted Full applications New dwelling Demolition 14 docs
  Domestic

• 107 Trinity Road Southend-on-sea Essex SS2 4HN

  23/00155/FULH Submitted 30 Jan 2023 98m away

  Erect single storey rear/side extension

  Granted Householder Extension 6 docs
  Small domestic

• 56 Lonsdale Road Southend-on-sea Essex SS2 4LX

  22/02338/FUL Submitted 7 Dec 2022 113m away

  Install dormer to side to form habitable accommodation in the loftspace

  Refused Full applications Loft or dormer 5 docs

• 56 Lonsdale Road Southend-on-sea Essex SS2 4LX

  24/01432/AD Submitted 6 Sep 2024 116m away

  Application for approval of dtails pursuant to conditions 03 (details of materials), 04 (details of hard and soft landscaping), 05 (details of renewable energy), 10 (details of refuse/recycling and cycle storage), and 14 (details of boundary treatment) of planning permission 23/01527/FUL dated 23/11/2023

  Granted Conditions

• 225 Stornoway Road Southend-on-sea Essex SS2 4NJ

  26/00850/FULH 124m away

  84% historically approved

  Erect single storey rear extension with roof lights

  Awaiting decision Extension Loft or dormer
  Small domestic

• 117 Hamstel Road Southend-on-sea Essex SS2 4LA

  23/00001/AD Submitted 2 Jan 2023 143m away

  Application for approval of details pursuant to conditions 03 (waste management and refuse collection), 04 (cycle parking), 06 (approved parking layout) and 08 (fenestration details) of planning permission 20/01115/PA3COU dated 10.09.2020

  Granted Conditions Windows or glazing 9 docs

• 26/00613/CLE Granted

  57 York Road Southend-on-sea Essex SS1 2BZ

  Use dwelling as a 9-person HMO (Certificate of Lawfulness - Existing)

  5 May 2026 Lawful development
• 26/01132/CLP Status unknown

  16 Plymtree Thorpe Bay Essex SS1 3RA

  Detached outbuilding to rear (certificate of lawful development - proposed)

  7 Aug 2026 Lawful development
• 26/00690/CLP Refused

  472 Woodgrange Drive Southend-on-sea Essex SS1 3ED

  Extend garage at front and rear

  21 May 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