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Planning application

124 Highbury Grove Portsmouth PO6 2RT

Refused Portsmouth 25/01321/HOU Householder Planning Application

Works: Extension Loft or dormer 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

Construction of single storey rear extension with raised decking area and alterations to roof including gable build-up and rear dormer

As published by the council, reference 25/01321/HOU

Application record

Reference
25/01321/HOU
Type
Householder Planning Application
Status
Decided
Decision
Refuse
Received
10 Nov 2025
Validated
12 Nov 2025
Decided
6 Jan 2026
Ward
Cosham
Decision by
Fully Delegated Decision
Postcode
PO6 2RT

Site history

Applications at this address on the Portsmouth register

This site has had 2 applications since 2025: 0 approved, 1 refused.

  • 26/00399/HOU Awaiting decision

    124 Highbury Grove Portsmouth PO6 2RT

    Construction of single storey rear extension with raised decking area and alterations to roof include hip to gable buildup and dormer windows to rear roofslopes

    Submitted 27 Mar 2026 Householder

Timeline

Dates from the published record

  1. 10 Nov 2025

    Received by Portsmouth

  2. 12 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 6 Jan 2026

    Decision issued: Refuse

  4. 25 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Thorns Young Ltd Agent, registered in Hampshire

Active · incorporated 2001 · Hampshire

138 applications on PlanIndex · across 6 councils · 90% 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

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 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 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

  • 124 Highbury Grove Portsmouth PO6 2RT

    26/00399/HOU Submitted 27 Mar 2026 0m away

    87% historically approved · decision due ~25 May

    Construction of single storey rear extension with raised decking area and alterations to roof include hip to gable buildup and dormer windows to rear roofslopes

    Awaiting decision Householder Extension Loft or dormer +1 7 docs
    Small domestic

  • 54 Chatsworth Avenue Portsmouth PO6 2UQ

    26/00081/HOU Submitted 27 Jan 2026 273m away

    Construction of single storey rear extension (following removal of existing)

    Refused Householder Extension 10 docs
    Small domestic

  • 235 Chatsworth Avenue Portsmouth PO6 2UL

    25/01099/HOU Submitted 19 Sep 2025 341m away

    Construction of single storey rear extension (following removal of existing)

    Granted Householder Extension 4 docs
    Small domestic

  • 5 The Old Road Portsmouth PO6 2SP

    26/00447/CPL Submitted 13 Apr 2026 422m away

    92% historically approved · decision due ~9 Jun

    Application for Certificate of Lawful Development for the proposed alterations to roof to include hip to gable buildup, construction of flat-roof dormer windows to rear roofslopes and roof-lights to front roofslopes

    Awaiting decision Lawful development Loft or dormer Windows or glazing

  • 48 Lonsdale Avenue Portsmouth PO6 2PX

    25/01107/HOU Submitted 23 Sep 2025 445m away

    Construction of single storey rear extension

    Granted Householder Extension 5 docs
    Small domestic

  • 2 Donaldson Road Portsmouth PO6 2SZ

    25/00038/GPDC Submitted 27 Aug 2025 470m away

    Construction of single storey rear extension, extending 4m beyond the rear wall, with a height of 2.8m to the eaves and maximum height of 3.1m

    Granted Prior approval Extension 2 docs
    Small domestic

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