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Planning application

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

Granted Harrow PL/2826/25 Householder

Works: Extension Loft or dormer Demolition Small domestic

Read from the description, not a valuation. How we read the register

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

Proposal

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)

As published by the council, reference PL/2826/25

Application record

Reference
PL/2826/25
Type
Householder
Status
Permitted
Decision
Grant Conditionally
Received
29 Oct 2025
Postcode
HA1 4AJ

Site history

Applications at this address on the Harrow register

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/0803/26 Status unknown

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

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

    Submitted 25 Mar 2026 Lawful development
  • 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/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

Timeline

Dates from the published record

  1. 29 Oct 2025

    Received by Harrow

  2. 12 Aug 2026

    Added to PlanIndex

What this grant of permission means

Harrow granted permission, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 42 Treve Avenue, Harrow, HA1 4AJ

    P/4707/18 Submitted 23 Oct 2018 0m 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 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

In Harrow

  • PL/1791/26 Status unknown

    MELTON HOUSE Sudbury Hill, Sudbury, Harrow, HA1 3ND

    Single storey rear glazed extension; single storey side extension; installation of additional windows to front elevation at first floor level; external alterations (demolition of conservatory)

    1 Jul 2026 Householder
  • PL/1766/26 Status unknown

    17 Sandymount Avenue, Stanmore, Harrow, HA7 4UA

    Vehicle access

    29 Jun 2026 Householder
  • PL/1764/26 Status unknown

    9A Elmwood Avenue, Kenton, Harrow, HA3 8AJ

    Two storey rear extension at lower ground floor and ground floor level

    29 Jun 2026 Householder
  • PL/1763/26 Status unknown

    160 Welbeck Road, West Harrow, Harrow, HA2 0RX

    Single storey rear extension

    29 Jun 2026 Householder
  • PL/1760/26 Status unknown

    23 Sancroft Road, Wealdstone, Harrow, HA3 7NX

    Single storey front extension incorporating porch; single and two storey side to rear extension; single storey rear extension; rooflight in front roof slope; external alterations

    29 Jun 2026 Householder