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Planning application

8 Cumberland Avenue Worthing West Sussex BN12 6JX

Decided Adur AWDM/0711/26

Works: Extension Small domestic

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

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Application for Certificate of Lawfulness for Proposed single-storey side extension to single dwelling.

As published by the council, reference AWDM/0711/26

Application record

Reference
AWDM/0711/26
Status
Decided
Received
9 Jun 2026
Validated
11 Jun 2026
Decided
22 Jun 2026
Ward
Castle
Postcode
BN12 6JX

Timeline

Dates from the published record

  1. 9 Jun 2026

    Received by Adur

  2. 11 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 22 Jun 2026

    Decision issued

  4. 31 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Horizon Design Ltd Agent, a design practice registered in Worthing

Active · incorporated 2007 · Worthing

61 applications on PlanIndex · across 5 councils · 100% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

After the decision

Adur has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

About this record

The published feed does not state which type of application this is; the register entry on Adur's portal will say. Our guide explains the common types.

Nearby applications

Within 500 metres

  • 21 Cumberland Avenue Worthing West Sussex BN12 6JX

    AWDM/0217/26 Submitted 19 Feb 2026 0m away

    Single storey rear extension and internal alterations

    Decided Extension
    Small domestic

  • 19 Cumberland Avenue Worthing West Sussex BN12 6JX

    AWDM/0956/26 Submitted 14 Aug 2026 0m away

    89% historically approved · decision due ~15 Oct

    Removal of existing conservatory, construction of single-storey rear extension with rooflight above, partial conversion of garage to habitable space and change of external materials from brick and tiles to render and cladding, replacement windows throughout.

    Awaiting decision Extension Loft or dormer +1
    Small domestic

  • 8 Cumberland Avenue Worthing West Sussex BN12 6JX

    AWDM/0711/26 Submitted 9 Jun 2026 0m away

    Application for Certificate of Lawfulness for Proposed single-storey side extension to single dwelling.

    Decided Extension
    Small domestic

  • 19 Cumberland Avenue Worthing West Sussex BN12 6JX

    AWDM/0956/26 Submitted 14 Aug 2026 0m away

    87% historically approved · decision due ~15 Oct

    Removal of existing conservatory, construction of single-storey rear extension with rooflight above, partial conversion of garage to habitable space and change of external materials from brick and tiles to render and cladding, replacement windows throughout.

    Awaiting decision Extension Loft or dormer +1
    Small domestic

  • 21 Cumberland Avenue Worthing West Sussex BN12 6JX

    AWDM/0217/26 Submitted 19 Feb 2026 0m away

    Single storey rear extension and internal alterations

    Decided Extension
    Small domestic

  • Oak Grove College The Boulevard Worthing West Sussex BN13 1JX

    AWDM/0877/21 Submitted 11 May 2021 231m away

    Consultation by WSCC on Reg 3 application WSCC/019/21 for Erection of a single storey modular classroom block.

    Granted Other 14 docs
    Small domestic