Skip to content
PlanIndex Get alerts
Menu

Planning application

42 Treve Avenue, Harrow, HA1 4AJ

Granted Harrow P/4707/18 Cert.Lawful Proposed Devt.(DEL)

Works: Windows or glazing

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Certificate of lawful development (proposed): conversion of garage to playroom with installation of window to front; external alterations

As published by the council, reference P/4707/18

Application record

Reference
P/4707/18
Type
Cert.Lawful Proposed Devt.(DEL)
Status
Final
Decision
Grant
Received
23 Oct 2018
Validated
1 Nov 2018
Decided
18 Dec 2018
Ward
West Harrow
Decision by
Delegated
Postcode
HA1 4AJ

Timeline

Dates from the published record

  1. 23 Oct 2018

    Received by Harrow

  2. 1 Nov 2018

    Validated

    Checked as complete and ready for consideration.

  3. 18 Dec 2018

    Decision issued: Grant

  4. 2 Sep 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

8 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Trade members open them from here.

Open the documents

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

  • 32 Treve Avenue, West Harrow, Harrow, HA1 4AJ

    P/4767/21/PRIOR Submitted 2 Dec 2021 0m away

    Single Storey Rear Extension: 6.00 metres deep, 3.78 metres maximum height, 3.00 metres high to the eaves

    Granted Prior approval Extension 13 docs
    Small domestic

  • 32 Treve Avenue, West Harrow, Harrow, HA1 4AJ

    P/2148/22 Submitted 7 Jun 2022 0m away

    Certificate of lawful proposed development (proposed): Single Storey Rear Extension (following established prior approval under ref: P/4767/21/PRIOR)

    Granted Lawful development Extension 14 docs
    Small domestic

  • 14 Treve Avenue, West Harrow, Harrow, HA1 4AJ

    PL/2565/25 Submitted 2 Oct 2025 0m away

    Single storey rear extension: 6.00 metres deep, 3.40 metres maximum height and 3.00 metres high to the eaves

    Granted Prior approval Extension
    Small domestic

  • 14 Treve Avenue, West Harrow, Harrow, HA1 4AJ

    PL/0803/26 Submitted 25 Mar 2026 0m away

    Decision due ~20 May

    Certificate of Lawful Development (Proposed): Change of use from C3 (Dwelling houses) to C4 (HMO for up to 6 persons)

    Status unknown Lawful development
    Domestic

  • 14 Treve Avenue, West Harrow, Harrow, HA1 4AJ

    PL/1784/26 Submitted 30 Jun 2026 0m away

    Decision due ~25 Aug

    Conversion of existing 6-bed 6-person HMO into 7-bed 8-person HMO with associated bin and cycle storage

    Status unknown Full applications

  • 14 Treve Avenue, West Harrow, Harrow, HA1 4AJ

    PL/0311/26 Submitted 4 Feb 2026 0m away

    Decision due ~1 Apr

    Single-storey front extension incorporating porch; two-storey side to rear extension; single-storey rear extension; external alterations; bin / cycle storage (demolition of attached garage and rear conservatory); Change of use from single dwelling (Class C3) to 7 bed HMO (Sui generis)

    Status unknown Full applications Extension Demolition
    Small domestic

In Harrow

  • PL/1761/26 Status unknown

    1 Middle Road, Harrow On The Hill, Harrow, HA2 0HW

    Certificate of lawful development (proposed): Replacement of ground floor front bay window

    29 Jun 2026 Lawful development
  • PL/1772/26 Status unknown

    114 Somervell Road, South Harrow, Harrow, HA2 8TT

    Certificate of Lawful Proposed Development: Demolition and replacement of first floor level and roof

    29 Jun 2026 Lawful development
  • PL/1735/26 Status unknown

    222 Malvern Avenue, South Harrow, Harrow, HA2 9HE

    Certificate of lawful development (proposed): Rear dormer; installation of rooflight in front roofslope

    24 Jun 2026 Lawful development
  • PL/1716/26 Status unknown

    59 Leamington Crescent, South Harrow, Harrow, HA2 9HH

    Certificate of Lawful Development (Proposed): Garden room with garden tools storage at rear (demolition of detached garage)

    22 Jun 2026 Lawful development
  • PL/1696/26 Status unknown

    31 Chandos Road, Harrow, HA1 4QX

    Certificate of Lawful Development (Proposed): Alterations and extension to roof to form end gable; rear dormer; two rooflights in front roof slope; window in end gable

    22 Jun 2026 Lawful development