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Planning application

2026/1498

101 Mandrake Road SW17 7PX

Granted Wandsworth Certificate of Lawfulness - Existing

Proposal

Erection of mansard roof extension to main rear roof (with french doors and safety railings) and roof extension above two storey back addition.

As published by the council, reference 2026/1498

Timeline

Dates from the published record

  1. 21 Apr 2026

    Received by Wandsworth

  2. 10 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 26 Jun 2026

    Decision issued: Approve No Conditions

  4. 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.

More on lawful development applications in our guide

Nearby applications

Within 500 metres

  • 2026/1946 Granted

    Fircroft Primary School Fircroft Road SW17 7PP

    Conversion of existing covered shelter into habitable rooms to be used for teaching, meeting and conference purposes. Alterations to include installation of glazed doors to north elevation.

    22 May 2026 69m away Full applications
  • 2026/2128 Awaiting decision

    39 Bevin Square SW17 7BB

    Alterations including erection of mansard roof extension to main rear roof (with french doors and safety railings) including raising ridge by 200mm.

    9 Jun 2026 71m away Householder
  • 2024/3594 Granted

    1 Bevin SquareSW17 7BB

    COMMUNAL TREES IN BEVIN SQUARE. Key: T# denotes TPO number. T9 London Plane (x1) - (T18, communal). Reduce crown back to previous points of reduction (3-4m off height & 2-3m off width). T10 Silver Birch (x1) - (T17, communal). Reduce crown back to previous points of reduction (2m off height & 1m off width) T11 Silver Birch (x1) - T16, communal). Reduce crown back to previous points of reduction (2m off height & 1m off width).. T16 London Plane (x1) - (T11, communal). Reduce crown back to previous points of reduction (approx. 3-4m off height & 1-2m off width). . T26-31 London Planes (x6) - (TPOs 29-34, communal). Reduce crowns back to previous points of reduction (approx. 3-4m off heights & 2-3m off widths). .

    18 Oct 2024 84m away Trees
  • 2024/3598 Granted

    1 Bevin Square SW17 7BB

    TPO217/2001. T1 Rowan (x1) - (T27, No.39). Reduce height by up to 1m. Reason: To reveal light and to maintain the tree at a smaller size. T2 Himalayan Birch (x1) - (T26, No.37). Reduce crown back to previous points of reduction. (1.5-2m off height and width). T3 Rowan (x1) - Fell. T4 Himalayan Birch (x1) - (T24, No.34). Reduce crown back to previous points of reduction (2m off height and 1.5m off width). T5 Rowan (x1) - (T23, No.32). Fell. T6 Himalayan Birch (x1) - (T22, No.31). Reduce crown back to previous points of reduction. (2m off height, 1.5m off width). T8 Rowan (x1) - (T20, No.27). Reduce crown by up to 1m. T12 Alder (x1) - (T15, No.22). Reduce crown back to previous points of reduction. (2-3m off height, 1-2m off width). T13 Himalayan Birch (x1) - (T14, No.20). Reduce crown back to previous points of reduction. (2.5m off height, 1.5m off width). T14 Himalyan Birch (x1) - (T13, No.18). Reduce crown back to previous points of reduction (2.5m off height & 1.5m off width). T15 Himalyan Birch (x1) - (T12, No.17). Reduce crown by 1m all around. T18 Rowan (x1) - (T9, No.14). Reduce crown by 50cm all around. T19 Rowan (x1) - (T8, No.12). Reduce crown by 1.5m all around. T20 Rowan (x1) - (T7, No.10). Reduce crown by 1m all around. T21 Purple Leaf Plum (x1) - Reduce crown by 1-1.5m all around. T22 Himalayan Birch (x1) - (T5, No.7). (Used to be a Field Maple). Reduce crown by 0.5m all around. T23 Rowan (x1) - (T4, No.6). Reduce crown back to previous points of reduction. (2m off height, 1cm off width). T24 Himalayan Birch (x1) - (T3, No.4). Reduce crown back to previous points of reduction. (1.5m off height, 1m off width). (T2, No.2). T25 Alder (x1) - (T2, No.2). Reduce crown back to previous points of reduction. (2m off height, 2m off width).. crown by 1.5m all around. T20 Rowan (x1) - (T7, No.10). Reduce crown by 1m all around. T21 Purple Leaf Plum (x1) - Reduce crown by 1-1.5m all around. T22 Himalayan Birch (x1) - (T5, No.7). (Used to be a Field Maple). Red

    18 Oct 2024 84m away Trees
  • 2026/1886 Refused

    7 Bevin Square SW17 7BB

    Alterations including erection hip to gable and mansard extension to the main rear roof including raising the ridge by 200mm. Rooflights to front roofslope

    18 May 2026 106m away Householder
  • 2026/2684 Withdrawn

    21 Brenda Road SW17 7DD

    The removal of external metal staircase in the rear garden and replace all the doors with windows to match existing.

    24 Jul 2026 113m away Lawful development

In Wandsworth

  • 2026/2084 Granted

    139 Mallinson Road SW11 1BH

    Erection of an extension above part of main rear roof and part of two-storey rear addition.

    4 Jun 2026 Lawful development
  • 2026/2735 Awaiting decision

    9 Pentlow Street SW15 1LX

    Lawful Development Certificate for a Proposed use or development.

    29 Jul 2026 Lawful development
  • 2026/1912 Granted

    100 Bickersteth Road SW17 9SJ

    Formation of vehichle crossover and dropped kerb; demolition of front boundary wall..

    20 May 2026 Lawful development
  • 2026/2721 Awaiting decision

    40 Mckiernan Court Shuttleworth Road SW11 3DY

    Application for a Lawful Development Certificate for a proposed use or development.

    28 Jul 2026 Lawful development
  • 2026/2042 Granted

    34 Marney Road SW11 5EP

    Alterations including erection of rear roof extension to main rear roof and installation of solar panels.

    1 Jun 2026 Lawful development