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Planning application

26/AP/1495

18 Cadiz Street London Southwark SE17 2TJ

Awaiting decision Southwark Certificate of Lawful Dev. - Existing

Proposal

Certificate of lawful development (existing) for bricking up of a doorway at the rear of the property, creation of a new doorway at the rear of the property to access the rear garden, enlargement of an existing window at the rear of the property to become a doorway to access the rear garden

As published by the council, reference 26/AP/1495

Timeline

Dates from the published record

  1. 26 May 2026

    Received by Southwark

  2. 19 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 25 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Southwark for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

  • 26/AP/1852 Awaiting decision

    The Old Rectory Liverpool Grove London Southwark SE17 2HH

    Details of Condition 7 - CEMP as required by full planning permission 24/AP/3430 dated 03/04/2025 for Two storey rear extension, including air source heat pump, to the Old Rectory building to integrate additional living accommodation

    25 Jun 2026 58m away Conditions
  • 26/AP/2121 Awaiting decision

    318 - 320 Walworth Road London Southwark SE17 2NA

    Reduction in the size of an existing shopfront window and installation of an additional entrance door within the existing shopfront.

    20 Jul 2026 75m away Full applications
  • 22/AP/1038 Granted

    34 Sutherland Walk London Southwark SE17 3EF

    Construction of a single storey ground floor rear extension and the replacement of the existing ground floor window to the front elevation with a new timber framed window of the same size and style.

    21 Mar 2022 102m away Householder
  • 26/AP/0864 Awaiting decision

    297 And 299 Walworth Road London Southwark SE17 2TG

    Erection of a part single and part 4 storey rear extension. Part demolition at first floor, along with first and second floor extensions and reconfiguration and a third floor roof extension. Creation of a central courtyard and associated amenity spaces and stairwells. Reconfiguration of existing commercial units (use class E) including increased ground floor provision. Conversion of upper floors and new build elements to create 9 residential dwellings (use class C3) along with associated entrances, cycle and refuse storage.

    24 Mar 2026 104m away Full applications
  • 26/AP/1717 Awaiting decision

    296 Walworth Road London Southwark SE17 2TE

    Prior approval for change of use of the second floor from commercial, business and service (Use Class E) to residential (Use Class C3) to create 1 self-contained flat under Schedule 2, Part 3, Class G of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).

    15 Jun 2026 121m away Prior approval
  • 26/AP/1545 Granted

    50A Date Street London Southwark SE17 2HQ

    Create habitable rooms in existing loft with the installation of conservation style rooflights to front and rear slopes.

    29 May 2026 124m away Full applications

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