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Planning application

AWDM/0487/26

Flat 136 Montague Street Worthing West Sussex BN11 3HG

Awaiting decision Adur Certificate Proposed Lawful Use/Dev

Proposal

Application for Certificate of Lawfulness for Existing Use as a two-bedroom self-contained flat (Use Class C3)

As published by the council, reference AWDM/0487/26

Timeline

Dates from the published record

  1. 20 Apr 2026

    Received by Adur

  2. 22 Apr 2026

    Validated

    Checked as complete and ready for consideration.

  3. 31 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

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

What happens while it is decided

The process from here

This application is with Adur for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

  • AWDM/0487/26 Awaiting decision

    Flat 136 Montague Street Worthing West Sussex BN11 3HG

    Application for Certificate of Lawfulness for Existing Use as a two-bedroom self-contained flat (Use Class C3)

    20 Apr 2026 0m away Lawful development
  • AWDM/0057/25 Awaiting decision

    Development Site South Of 147 Montague Street Surrey Street Worthing West Sussex

    Approval of details reserved by conditions 3 (materials), 9 (landscaping and biodiversity) and 10 (flood evacuation plan) of application AWDM/2011/22.

    17 Jan 2025 58m away Conditions
  • AWDM/0057/25 Awaiting decision

    Development Site South Of 147 Montague Street Surrey Street Worthing West Sussex

    Approval of details reserved by conditions 3 (materials), 9 (landscaping and biodiversity) and 10 (flood evacuation plan) of application AWDM/2011/22.

    17 Jan 2025 58m away Conditions
  • AWDM/1852/22 Granted

    129 Montague Street Worthing West Sussex BN11 3BP

    Retrospective application for change of use from Offices (Class E) to 2no. residential dwellings (Class C3) with reinstatement of previously blocked up windows to Eastern Elevation and replacment windows to the front elevation.

    11 Nov 2022 109m away Full applications
  • AWDM/1852/22 Granted

    129 Montague Street Worthing West Sussex BN11 3BP

    Retrospective application for change of use from Offices (Class E) to 2no. residential dwellings (Class C3) with reinstatement of previously blocked up windows to Eastern Elevation and replacment windows to the front elevation.

    11 Nov 2022 109m away Full applications
  • AWDM/0612/26 Awaiting decision

    119 Montague Street Worthing West Sussex BN11 3BP

    Proposed 2no. external Air Conditioning Condensers to the rear/side of the building

    19 May 2026 143m away Full applications

In Adur

  • AWDM/0890/26 Awaiting decision

    55 Penfold Road Worthing West Sussex BN14 8PG

    Application for Certificate of Lawfulness for Proposed loft conversion with rear dormer and Juliet balcony, front rooflights

    29 Jul 2026 Lawful development
  • AWDM/0880/26 Awaiting decision

    33 Manor Close Southwick West Sussex BN42 4NW

    Application for Certificate of Lawfulness for proposed single storey rear extension

    24 Jul 2026 Lawful development
  • AWDM/0876/26 Awaiting decision

    3 Franklands Close Worthing West Sussex BN14 0BD

    Application for Certificate of Lawfulness for proposed side extension (garage) and replacement rear conservatory roof.

    23 Jul 2026 Lawful development
  • AWDM/0853/26 Granted

    26 Keymer Crescent Worthing West Sussex BN12 4LD

    Application for Certificate of Lawfulness for proposed loft conversion including rear hip-to-gable roof extension, north side dormer, and 1no. front facing rooflight

    17 Jul 2026 Lawful development
  • AWDM/0827/26 Granted

    54 Grover Avenue Lancing West Sussex BN15 9RQ

    Application for Certificate of Lawfulness for proposed loft conversion including a rear dormer, 3no. front rooflights and removal of an existing chimney

    10 Jul 2026 Lawful development