Planning application
40 Seaton Avenue Portsmouth PO3 6LG
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.
Proposal
Application for Certificate of Lawful Development for the proposed construction of single storey rear extension following removal of existing lean-to
As published by the council, reference 25/00919/CPL
Application record
- Reference
- 25/00919/CPL
- Type
- Certificate of Proposed Lawful Use/Dev
- Status
- Awaiting decision
- Decision
- Refuse CLUD
- Received
- 5 Aug 2025
- Validated
- 9 Sep 2025
- Decided
- 2 Oct 2025
- Ward
- Baffins
- Decision by
- Fully Delegated Decision
- Postcode
- PO3 6LG
Site history
Applications at this address on the Portsmouth register
This site has had 2 applications since 2025: 1 approved, 1 refused.
-
25/01180/HOU Granted
40 Seaton Avenue Portsmouth PO3 6LG
Retrospective application for construction of single storey rear extension and raised decking area
Timeline
Dates from the published record
-
5 Aug 2025
Received by Portsmouth
-
9 Sep 2025
Validated
Checked as complete and ready for consideration.
-
2 Oct 2025
Decision issued: Refuse CLUD
-
25 Jul 2026
Added to PlanIndex
Documents
Plans, drawings, consultee responses and the officer's report
6 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this refusal means
Portsmouth refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.
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 500 metres
-
40 Seaton Avenue Portsmouth PO3 6LG
Retrospective application for construction of single storey rear extension and raised decking area
Granted Householder Extension 6 docsSmall domestic -
17 Redcar Avenue Portsmouth PO3 6LE
87% historically approved · decision due ~21 Apr
Alterations to roof to include hip to gable buildup with construction of dormer windows to front and rear roofslopes and retention of front porch
Awaiting decision Householder Extension Loft or dormer +1 9 docsSmall domestic -
Moneyfields Sports Ground Moneyfield Avenue Portsmouth PO3 6LA
86% historically approved · decision due ~3 Apr
Application to remove condition 13 (Overnight Parking) of planning permission 18/00057/FUL
Awaiting decision Amendments 4 docs -
66 Ripley Grove Portsmouth PO3 6NJ
Construction of single storey rear extension with raised decking area
Granted Householder Extension 5 docsSmall domestic -
Mcdonalds Ocean Park Burrfields Road Portsmouth PO3 5DP
Application for a Lawful Development Certificate for the proposed unrestricted operation hours
Granted Lawful development 2 docs
Other lawful development applications
In Portsmouth
-
26/00485/CPL Granted
46 Carmarthen Avenue Portsmouth PO6 2AQ
Application for Certificate of Lawful Development for the proposed single storey outbuilding
-
26/00209/CPL Granted
12 Second Avenue Portsmouth PO6 1JS
Application for Certificate of Lawful Development for the proposed construction of outbuilding
-
26/00482/CPE Awaiting decision
24 Guildford Road Portsmouth PO1 5HX
Application for Certificate of Lawful Development for existing use as house in multiple occupation (Class C4)
-
26/00484/CPE Awaiting decision
8 Outram Road Southsea
Application for Certificate of Lawful Development for existing use as four residential apartments
-
26/00161/CPE Granted
141 Guildford Road Portsmouth PO1 5BE
Application for lawful development for existing use as a House in Multiple Occupation (Class C4)