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

This site has had 5 applications since 2025: 2 approved, 0 refused.

• PL/1784/26 Status unknown

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

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

  Submitted 30 Jun 2026 Full applications
• PL/0311/26 Status unknown

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

  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)

  Submitted 4 Feb 2026 Full applications
• PL/2826/25 Granted

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

  Single storey front extension incorporating porch; two storey side to rear extension; single storey rear extension; alterations to the roof to form rear dormer; roof light in front roof slope; external alterations (demolition of attached garage and rear conservatory)

  Submitted 29 Oct 2025 Householder
• PL/2565/25 Granted

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

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

  Submitted 2 Oct 2025 Prior approval

1. 25 Mar 2026

   Received by Harrow

2. 12 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 20 May 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

The published feed does not show a live status for this application; the register on Harrow's own portal holds the authoritative version.

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/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

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

  PL/0311/26 Submitted 4 Feb 2026 50 yards 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

• 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