Planning application
26/00137/CPL
11 Down End Road Portsmouth PO6 1HT
Proposal
Application for Certificate of Lawful Development for the proposed construction of annex
As published by the council, reference 26/00137/CPL
Timeline
Dates from the published record
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5 Feb 2026
Received by Portsmouth
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10 Feb 2026
Validated
Checked as complete and ready for consideration.
-
7 Apr 2026
Decision issued: Permitted
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25 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
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.
Nearby applications
Within 500 metres
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26/00002/GPDC Granted
24 Down End Road Portsmouth PO6 1HU
Construction of single storey rear extension, extending 5m beyond the rear wall, with a height of 2.1m to the eaves and maximum height of 3.7m
-
26/00466/HOU Awaiting decision
39 Augustine Road Portsmouth PO6 1HZ
Construction of new roof with dormer windows to north and south roofslopes, new single storey extension to west elevation (following demolition of existing), extension of existing raised patio including installation of balustrading; construction of single storey outbuilding with carport (following removal of existing shed); installation of new boundary gates, wall and driveway. External alterations to include removal of pitched roof to existing south bay window.
-
25/01076/HOU Decided
Summerlands 40 Down End Road Portsmouth PO6 1HU
Alterations to existing conservatory and construction of 1.1m tall balustrade to form balcony
-
25/00996/HOU Decided
9 Augustine Road Portsmouth PO6 1HY
Construction of two-storey rear extension and single-storey rear/side extensions.
-
25/01025/HOU Decided
40 Drayton Lane Portsmouth PO6 1HG
Construction of carport with solar panels (following removal of existing garage)
-
26/00050/HOU Decided
66 Aberdare Avenue Portsmouth PO6 2AU
Construction of single storey rear extension and two storey side extension (following removal of existing), alterations to roof to include hip to gable buildup with construction of dormer window to rear roofslope
Other lawful development applications
In Portsmouth
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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)