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Planning application

22/AP/3876

29 Portland Street London Southwark SE17 2PG

Granted Southwark Certificate of Lawful Dev. - Proposed

Proposal

Certificate of Lawfulness (Proposed) for the creation of two windows on the back facing roof of type Velux Central Pivot Windows 55/78.

As published by the council, reference 22/AP/3876

Timeline

Dates from the published record

  1. 9 Nov 2022

    Received by Southwark

  2. 24 Nov 2022

    Validated

    Checked as complete and ready for consideration.

  3. 12 Jan 2023

    Decision issued: Certificate of Lawfulness Prop- GRANTED

  4. 28 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.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 22/AP/3914 Granted

    49 Portland Street London Southwark SE17 2PG

    Replacement of existing single glazed windows with double glazed timber windows to the front and rear.

    14 Nov 2022 46m away Householder
  • 22/AP/3913 Granted

    49 Portland Street London Southwark SE17 2PG

    Details of Condition 5 (Detailed drawings), as required by planning permission 20/AP/2844 dated 30/11/2020 for Construction of a ground floor rear extension, conversion of loft space at second floor level and the provision of conservation rooflights on rear roof slope.

    14 Nov 2022 46m away Conditions
  • 26/AP/0792 Awaiting decision

    11 Portland Street London Southwark SE17 2PF

    Listed building consent for internal alterations including replacement of floorboards and partitions

    19 Mar 2026 56m away Heritage and listed buildings
  • 22/AP/3599 Decided

    Former Workshop Site Land To Rear Of 58-62 Portland St London SE17 2BP

    Non material amendment of planning permission ref. no. 18/AP/1137: Demolition of redundant workshop and construction of three new houses land rear 58-62 Portland Street. Amendments include: new window and door in the west elevation of house 1.

    17 Oct 2022 87m away Conditions
  • 26/AP/1512 Awaiting decision

    4 Aycliffe House Portland Street London Southwark SE17 2PE

    Listed building consent for proposed works include like-for-like replacement of the windows at 4 Aycliffe House, including the removal of the existing single-glazed windows and the installation of 5nr. single-glazed sash windows (Conservation Sash Window range) in Accoya, with hardwood frames and Accoya cills, to the following locations: -Back Bedroom -Front Bedroom -Kitchen -Bathroom

    27 May 2026 99m away Heritage and listed buildings
  • 26/EES/0025 Awaiting decision

    220 Merrow Street London Southwark SE17 2NX

    Follow up pre-application (25/EQ/0269) in relation to the village hub proposals only (meeting and written advice)

    3 Jul 2026 143m away

In Southwark

  • 26/AP/1647 Granted

    7 Medlar Street London Southwark SE5 0JU

    Certificate of lawfulness (proposed) for the construction of an L-shaped rear dormer extension and installation of 2no. rooflights to the front roof slope

    8 Jun 2026 Lawful development
  • 26/AP/2189 Awaiting decision

    Surrey Square Park Surrey Square London Southwark SE17 2JX

    Certificate of Lawfulness (existing) for refurbishment and reconfiguration of the existing children's playground and landscape improvements including new pathways and planting within Surrey Square Park.

    24 Jul 2026 Lawful development
  • 26/AP/2168 Awaiting decision

    150A Lower Road London Southwark SE16 2UG

    Certificate of lawfulness (proposed) for the change of use of a single dwellinghouse (Use Class C3) to a House in Multiple Occupation (Use Class C4) occupied by three unrelated individuals.

    22 Jul 2026 Lawful development
  • 26/AP/1618 Granted

    252 Barry Road London Southwark SE22 0JS

    Certificate of lawful development (proposed) for the construction of a rear dormer extension.

    5 Jun 2026 Lawful development
  • 26/AP/1577 Granted

    Residence Inn By Marriott London Bridge 201-211 Long Lane London SE1 4PN

    Certificate of lawfulness (proposed) for undertaking of facade remedial works to remove combustible cladding materials and replace with a like-for-like non-combustible cladding with no change to the outer aesthetics of the building.

    2 Jun 2026 Lawful development