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Planning application

40 Seaton Avenue Portsmouth PO3 6LG

Granted Portsmouth 25/01180/HOU Householder Planning Application

Works: Extension Small domestic

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

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Retrospective application for construction of single storey rear extension and raised decking area

As published by the council, reference 25/01180/HOU

Application record

Reference
25/01180/HOU
Type
Householder Planning Application
Status
Awaiting decision
Decision
Conditional Permission
Received
13 Oct 2025
Validated
13 Oct 2025
Decided
20 Nov 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.

  • 25/00919/CPL Refused

    40 Seaton Avenue Portsmouth PO3 6LG

    Application for Certificate of Lawful Development for the proposed construction of single storey rear extension following removal of existing lean-to

    Decided 2 Oct 2025 Lawful development

Timeline

Dates from the published record

  1. 13 Oct 2025

    Received by Portsmouth

  2. 20 Nov 2025

    Decision issued: Conditional Permission

  3. 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.

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Open the documents

What this grant of permission means

Portsmouth granted permission on 20 November 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 40 Seaton Avenue Portsmouth PO3 6LG

    25/00919/CPL Submitted 5 Aug 2025 4m away

    Application for Certificate of Lawful Development for the proposed construction of single storey rear extension following removal of existing lean-to

    Refused Lawful development Extension 6 docs
    Small domestic

  • 17 Redcar Avenue Portsmouth PO3 6LE

    26/00200/HOU Submitted 19 Feb 2026 116m away

    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 docs
    Small domestic

  • Moneyfields Sports Ground Moneyfield Avenue Portsmouth PO3 6LA

    26/00138/VOC Submitted 5 Feb 2026 252m away

    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

    25/01375/HOU Submitted 25 Nov 2025 348m away

    Construction of single storey rear extension with raised decking area

    Granted Householder Extension 5 docs
    Small domestic

  • Mcdonalds Ocean Park Burrfields Road Portsmouth PO3 5DP

    25/01093/CPL Submitted 18 Sep 2025 425m away

    Application for a Lawful Development Certificate for the proposed unrestricted operation hours

    Granted Lawful development 2 docs

In Portsmouth

  • 25/01493/HOU Granted

    77 Victoria Road South Southsea PO5 2BU

    Construction of single storey rear and side extension with terrace at first floor (following removal of existing extension and garage), alterations to fenestration and installation of heat pump

    19 Dec 2025 Householder
  • 26/00497/HOU Awaiting decision

    46 Carmarthen Avenue Portsmouth PO6 2AQ

    Construction of two storey rear extension (following removal of existing) and enlargement of front porch

    17 Apr 2026 Householder
  • 26/00095/HOU Refused

    96 Portsdown Road Portsmouth PO6 4QH

    Alterations to roof to include hip to gable buildup and construction of dormer windows to front and rear roofslopes

    29 Jan 2026 Householder
  • 25/01455/HOU Granted

    77 Station Road Portsmouth PO6 1PJ

    Alterations to roof to include hip to gable buildup, and dormer window to rear roofslopes

    11 Dec 2025 Householder
  • 26/00115/HOU Granted

    1 Court Mead Portsmouth PO6 2LT

    Construction of rear and side single storey extension

    2 Feb 2026 Householder