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Planning application

43 Cannon Lane, Pinner, Harrow, HA5 1HN

Status unknown Harrow PL/0170/26 Prior Notification - Larger Home Extension

Works: Extension Small domestic

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

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Single storey rear extension: 4.20 metres deep, 3.00 metres maximum height and 3.00 metres high to the eaves

As published by the council, reference PL/0170/26

Application record

Reference
PL/0170/26
Type
Prior Notification - Larger Home Extension
Received
22 Jan 2026
Ward
Pinner South
Postcode
HA5 1HN

Site history

Applications at this address on the Harrow register

This site has had 2 applications since 2025.

  • PL/2307/25 Status unknown

    43 Cannon Lane, Pinner, Harrow, HA5 1HN

    Certificate of Lawful Development Proposed: Conversion of the existing hipped roof to a gable end; rear-facing dormer; installation of 3nos rooflights to front roofslope and the construction of a new front porch.

    Submitted 3 Sep 2025 Lawful development

Timeline

Dates from the published record

  1. 22 Jan 2026

    Received by Harrow

  2. 12 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 19 March 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

Checking the current position

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

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 0.3 miles

  • 43 Cannon Lane, Pinner, Harrow, HA5 1HN

    PL/2307/25 Submitted 3 Sep 2025 50 yards away

    Decision due ~29 Oct

    Certificate of Lawful Development Proposed: Conversion of the existing hipped roof to a gable end; rear-facing dormer; installation of 3nos rooflights to front roofslope and the construction of a new front porch.

    Status unknown Lawful development Extension Loft or dormer
    Small domestic

  • 20 Cannon Lane, Pinner, Harrow, HA5 1HL

    PL/2391/24 Submitted 29 Aug 2024 50 yards away

    Single storey side extension, Single and two storey rear extension (Demolition of detached garage)

    Granted Householder Extension Demolition
    Small domestic

  • 24 Cannon Lane, Pinner, Harrow, HA5 1HL

    PL/0920/26 Submitted 2 Apr 2026 50 yards away

    Decision due ~28 May

    Single and two storey side to rear extensions; attached garage; rear dormer; external alterations (Demolition of porch canopy, side extension, and detached garage)

    Status unknown Householder Extension Loft or dormer +1
    Small domestic

  • 13 Vale Croft, Pinner, Harrow, HA5 1HJ

    PL/3216/24 Submitted 6 Dec 2024 100 yards away

    Single storey rear extension: 6.00 metres deep, 3.20 metres maximum height and 3.00 metres high to the eaves

    Granted Prior approval Extension
    Small domestic

  • Harrow Carpet Studio, 54 Cannon Lane, Pinner, Harrow, HA5 1HW

    P/1518/21/PRIOR Submitted 9 Apr 2021 100 yards away

    Change Of Use of rear part of ground floor from Retail (Class A1 (New Class E)) to one Studio flat (Class C3); External Alterations; (Prior Approval of Transport and Highways Impacts of the Development, Contamination, Flooding, the Desirability of the Change of Use, External Appearance and Adequate Light)

    Granted Prior approval 8 docs

  • Cannon Newsagent, 58 Cannon Lane, Pinner, Harrow, HA5 1HW

    P/1491/21 Submitted 6 Apr 2021 100 yards away

    Display of one internally illuminated fascia sign and one internally illuminated hanging sign

    Granted Advertising 11 docs

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

    Received 2 Jul, published by the council 12 Aug 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

    Received 1 Jul, published by the council 12 Aug 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

    Received 1 Jul, published by the council 12 Aug 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

    Received 1 Jul, published by the council 12 Aug 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

    Received 29 Jun, published by the council 12 Aug 2026 Prior approval