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Planning application

12 Ashdale Grove, Stanmore, Harrow, HA7 3SB

Granted Harrow PL/0172/24 Prior Notification - Larger Home Extension

Works: Extension 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 rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.90 metres high to the eaves

As published by the council, reference PL/0172/24

Application record

Reference
PL/0172/24
Type
Prior Notification - Larger Home Extension
Status
Permitted
Decision
Prior Approval not required
Received
24 Jan 2024
Ward
Stanmore
Postcode
HA7 3SB

Site history

Applications at this address on the Harrow register

This site has had 6 applications since 2023: 3 approved, 1 refused.

  • PL/2908/25 Status unknown

    12 Ashdale Grove, Stanmore, Harrow, HA7 3SB

    Certificate of Lawful Development (Proposed): Single storey rear extension (demolition of detached garage) (Following established prior approval reference PL/0172/24)

    Submitted 10 Nov 2025 Lawful development
  • P/1646/23/PRIOR Refused

    12 Ashdale Grove, Stanmore, Harrow, HA7 3SB

    Single storey rear extension: 6.00 metres deep, 3.00 metres maximum height and 2.90 metres high to the eaves

    Decided 18 Jul 2023 Prior approval
  • P/1644/23 Withdrawn

    12 Ashdale Grove, Stanmore, Harrow, HA7 3SB

    CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Front porch and external steps; alteration and replacement of window in front elevation.

    Submitted 6 Jun 2023 Lawful development
  • P/1594/23 Granted

    12 Ashdale Grove, Stanmore, Harrow, HA7 3SB

    CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Alterations and extension to roof to form end gable to create first floor level; rear dormer; three rooflights in front roofslope; extension to svp at side

    Decided 25 Jul 2023 Lawful development
  • P/1542/23 Granted

    12 Ashdale Grove, Stanmore, Harrow, HA7 3SB

    CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED): Detached outbuilding at rear for use as home office

    Decided 26 Jul 2023 Lawful development

Timeline

Dates from the published record

  1. 24 Jan 2024

    Received by Harrow

  2. 2 Sep 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • PL/2908/25 Status unknown

    12 Ashdale Grove, Stanmore, Harrow, HA7 3SB

    Certificate of Lawful Development (Proposed): Single storey rear extension (demolition of detached garage) (Following established prior approval reference PL/0172/24)

    Submitted 10 Nov 2025 Lawful development

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 prior approval applications

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 17 Ashdale Grove, Stanmore, HA7 3SB

    P/1330/17 Submitted 15 Mar 2017 0m away

    Single storey rear extension

    Decided Householder Extension 13 docs
    Small domestic

  • 25 Ashdale Grove, Stanmore, Harrow, HA7 3SB

    P/2001/21 Submitted 12 May 2021 0m away

    Certificate of lawful development (proposed): Alterations to roof to form end gable and rear dormer; installation of five rooflights in front roofslope; front porch; replacement of window with door to side elevation

    Granted Lawful development Extension Loft or dormer +1 11 docs
    Small domestic

  • 7 Ashdale Grove, Stanmore, Harrow, HA7 3SB

    P/2494/22 Submitted 5 Jul 2022 0m away

    Single storey side to rear extension

    Granted Householder Extension 15 docs
    Small domestic

  • 28 Ashdale Grove, Stanmore, Harrow, HA7 3SB

    PL/0094/24 Submitted 15 Jan 2024 0m away

    Single storey side to rear extension; raised patio and external steps to rear; external alterations (demolition of detached garage)

    Granted Householder Extension Demolition
    Small domestic

  • 10 Ashdale Grove, Stanmore, HA7 3SB

    P/0502/17 Submitted 26 Jan 2017 0m away

    Single storey rear extension: extending 6 metres beyond the original rear wall 3.8 Metres maximum height 3 metres high to the eaves

    Decided Householder Extension 10 docs
    Small domestic

  • 8 Ashdale Grove, Stanmore, Harrow, HA7 3SB

    P/1871/22/PRIOR Submitted 23 May 2022 0m away

    Single Storey Rear Extension: 5.00 metres deep, 2.95 metres maximum height, 2.84 metres high to the eaves

    Granted Prior approval Extension 6 docs
    Small domestic

In Harrow

  • PL/1797/26 Status unknown

    61 Uppingham Avenue, Stanmore, Harrow, HA7 2JB

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

    2 Jul 2026 Prior approval
  • PL/1793/26 Status unknown

    36 Hinkler Road, Kenton, Harrow, HA3 9AU

    Single storey rear extension: 6.00 metres deep, 3.38 metres maximum height and 2.75 metres high to the eaves

    1 Jul 2026 Prior approval
  • PL/1792/26 Status unknown

    3 Monro Gardens, Harrow Weald, Harrow, HA3 6HH

    Single storey rear extension: 6.50 metres deep, 3.20 metres maximum height and 3.00 metres high to the eaves

    1 Jul 2026 Prior approval
  • PL/1794/26 Status unknown

    65 Dean Drive, Edgware, Stanmore, Harrow, HA7 1HB

    Single storey rear extension: 5.00 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves

    1 Jul 2026 Prior approval
  • PL/1749/26 Status unknown

    22 Hazelwood Close, Harrow, HA2 6HD

    Single storey rear extension: 4.50 metres deep, 3.00 metres maximum height and 2.80 metres high to the eaves

    29 Jun 2026 Prior approval