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Planning application

HGY/2026/0185

123 Plevna Crescent, Tottenham, London, N15 6DY

Granted Haringey Lawful development: Proposed use

Proposal

Certificate of Lawfulness for proposed rear dormer extension

As published by the council, reference HGY/2026/0185

Timeline

Dates from the published record

  1. 28 Jan 2026

    Received by Haringey

  2. 2 Feb 2026

    Decision issued: Permitted Development

  3. 24 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

  • HGY/2025/3471 Granted

    Land rear of Plevna Crescent, London N15 6DW

    Application for a Non-Material Amendment Following a Grant of Planning Permission HGY/2024/1825 to Block D following receipt of updated advice from the fire consultant ahead of a Gateway 2 submission to the Building Safety Regulator (BSR)

    12 Dec 2025 37m away Amendments
  • HGY/2026/0446 Granted

    85 St Anns Road, Tottenham, London, N15 6NJ

    Alterations to the front elevation of the building, replacing the existing shop front with a new residential window, following the grant of prior approval under application reference HGY/2024/1286, for the change of use of the ground floor commercial unit to residential use.

    18 Feb 2026 95m away Full applications
  • HGY/2025/3606 Refused

    85 St Anns Road, Tottenham, London, N15 6NJ

    Prior approval is required for a proposed: Change of use from Commercial, Business and Service (Use Class E) to Dwellinghouses (Use Class C3) Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) - Schedule 2, Part 3, Class MA

    29 Dec 2025 95m away Prior approval
  • HGY/2026/1869 Awaiting decision

    67 St Anns Road, Tottenham, London, N15 6NJ

    Replacement of all the property's existing windows with new UPVC double-glazed windows and replacement of the existing front door with a new composite double-glazed door.

    3 Jul 2026 95m away Full applications
  • HGY/2026/1111 Granted

    85 St Anns Road, Tottenham, London, N15 6NJ

    Application to determine if prior approval is required for the proposed change of use of the ground floor of the building from commercial/business/service use (Class E) to residential use (Class C3) to provide two 1-bedroom/1-person studio flats. Application made under Schedule 2, Part 3, Class MA of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended).

    20 Apr 2026 95m away Prior approval
  • HGY/2026/0837 Granted

    14 Ermine Road, Tottenham, London, N15 6DB

    Erection of a single storey front extension, repositioned front door with internal alterations, and installation of timber bin store in the front garden.

    24 Mar 2026 163m away Householder

In Haringey

  • HGY/2026/2104 Granted

    17 Sperling Road, Tottenham, London, N17 6UQ

    Certificate of lawfulness for proposed use: Loft conversion with erection of rear L-shaped dormer and insertion of 2no. front rooflights.

    23 Jul 2026 Lawful development
  • HGY/2026/1307 Granted

    49 Lordsmead Road, Tottenham, London, N17 6EX

    Certificate of lawfulness for the existing use of the property as five separate self-contained flats.

    8 May 2026 Lawful development
  • HGY/2026/1885 Granted

    6, Grainger Road, London, N22 5LT

    Certificate of Lawfulness: Proposed alterations to the roof comprising the installation of 3no. rooflights (2no. front facing and 1no. rear facing).

    6 Jul 2026 Lawful development
  • HGY/2026/1375 Granted

    Flats 1, 2, & 3 149 Crescent Road, Wood Green, London, N22 7RU

    Certificate of lawfulness for the existing use of the property as 3 self-contained flats (comprising of ground floor 2 bed, first floor 2 bed, second floor 1 bed) for more than 4 years.

    14 May 2026 Lawful development
  • HGY/2026/1409 Granted

    492 Archway Road, Hornsey, London, N6 4NA

    Certificate of Lawfulness Existing Use. Use of lower ground floor as two flats (Use Class C3).

    19 May 2026 Lawful development