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

This site has had 5 applications since 2020: 3 approved, 2 refused.

• P/2148/22 Granted

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

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

  Decided 21 Jul 2022 Lawful development
• P/4767/21/PRIOR Granted

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

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

  Decided 12 Jan 2022 Prior approval
• P/3008/21 Granted

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

  CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED):Alterations to roof to form an end gable, rear dormer. Insertion of three rooflights in front roofslope and the insertion of a rooflight on the side of the projecting pitched roof.

  Decided 14 Oct 2021 Lawful development
• P/3018/21/PRIOR Refused

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

  Single Storey Rear Extension: 6.00 metres deep, 3.50 metres maximum height, 3.00 metres high to the eaves

  Decided 27 Aug 2021 Prior approval

1. 27 Jul 2020

   Received by Harrow

2. 11 Sep 2020

   Validated

   Checked as complete and ready for consideration.

3. 30 Oct 2020

   Decision issued: Refused

4. 2 Sep 2026

   Added to PlanIndex

Harrow refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 42 Treve Avenue, Harrow, HA1 4AJ

  P/4707/18 Submitted 23 Oct 2018 50 yards away

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

  Granted Lawful development Windows or glazing 8 docs

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

  P/4767/21/PRIOR Submitted 2 Dec 2021 50 yards 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 50 yards 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 50 yards 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 50 yards 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 50 yards 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

• 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

  Received 29 Jun, published by the council 12 Aug 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

  Received 29 Jun, published by the council 12 Aug 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

  Received 24 Jun, published by the council 12 Aug 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)

  Received 22 Jun, published by the council 12 Aug 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

  Received 22 Jun, published by the council 12 Aug 2026 Lawful development