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Planning application

The Microbiology Laboratory, 56 Northumberland Road, North Harrow, Harrow, HA2 7RE

Status unknown Harrow PL/3244/25 Full Planning Application

Works: Extension Windows or glazing 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

Front porch, Replacement window in front elevation, Alterations and extension to roof to form first floor, External alterations

As published by the council, reference PL/3244/25

Application record

Reference
PL/3244/25
Type
Full Planning Application
Received
15 Dec 2025
Ward
Pinner South
Postcode
HA2 7RE

Site history

Applications at this address on the Harrow register

This site has had 2 applications since 2025.

  • PL/0598/26 Status unknown

    The Microbiology Laboratory, 56 Northumberland Road, North Harrow, Harrow, HA2 7RE

    Details pursuant to Conditions 6 (Cycle Stores) & 7 (Hard and Soft Landscaping) attached to planning permission PL/3244/25 dated 27/02/2026 for Front porch, Replacement window in front elevation, Alterations and extension to roof to form first floor, External alterations

    Submitted 6 Mar 2026 Conditions

Timeline

Dates from the published record

  1. 15 Dec 2025

    Received by Harrow

  2. 12 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 9 February 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

Cases linked to this one on the register

1 later application on the register refers to this one:

  • PL/0598/26 Status unknown

    The Microbiology Laboratory, 56 Northumberland Road, North Harrow, Harrow, HA2 7RE

    Details pursuant to Conditions 6 (Cycle Stores) & 7 (Hard and Soft Landscaping) attached to planning permission PL/3244/25 dated 27/02/2026 for Front porch, Replacement window in front elevation, Alterations and extension to roof to form first floor, External alterations

    Submitted 6 Mar 2026 Conditions

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 full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • The Microbiology Laboratory, 56 Northumberland Road, North Harrow, Harrow, HA2 7RE

    PL/0598/26 Submitted 6 Mar 2026 0m away

    Decision due ~1 May

    Details pursuant to Conditions 6 (Cycle Stores) & 7 (Hard and Soft Landscaping) attached to planning permission PL/3244/25 dated 27/02/2026 for Front porch, Replacement window in front elevation, Alterations and extension to roof to form first floor, External alterations

    Status unknown Conditions Extension Windows or glazing
    Small domestic

  • 10 Suffolk Road, North Harrow, Harrow, HA2 7QQ

    PL/2882/25 Submitted 6 Nov 2025 123m away

    Decision due ~1 Jan

    Single and two storey side extension; single storey side extension with new access doors to front; one rooflight in side roof slope; lowering front garden ground level; external alterations (Demolition of garage)

    Status unknown Householder Extension Loft or dormer +1
    Small domestic

  • 20 Suffolk Road, North Harrow, Harrow, HA2 7QQ

    PL/1853/24 Submitted 8 Jul 2024 123m away

    Certificate of Lawful Proposed Development: Alterations to roof to form end gable and rear dormer with 2 Juliette balconies, installation of four roof lights in front elevation and new window in end gable, removal of window in side elevation

    Refused Lawful development Loft or dormer Windows or glazing

  • 20 Suffolk Road, North Harrow, Harrow, HA2 7QQ

    PL/1361/26 Submitted 18 May 2026 123m away

    Decision due ~13 Jul

    Details pursuant to Condition 5 (swift / nest boxes) attached to planning permission PL/2438/25 dated 17.12.25 for Single storey side to rear extension; external alterations (Demolition of attached garage)

    Status unknown Conditions Extension Demolition
    Small domestic

  • 20 Suffolk Road, North Harrow, Harrow, HA2 7QQ

    PL/0081/26 Submitted 12 Jan 2026 123m away

    Decision due ~9 Mar

    Certificate of lawful development (proposed): Alterations to roof to form end gable and rear dormer; installation of three rooflights in front roofslope

    Status unknown Lawful development Loft or dormer

  • 20 Suffolk Road, North Harrow, Harrow, HA2 7QQ

    PL/2438/25 Submitted 19 Sep 2025 123m away

    Single storey side to rear extension; external alterations (Demolition of attached garage)

    Granted Householder Extension Demolition
    Small domestic

In Harrow

  • PL/1786/26 Status unknown

    23 Stuart Road, Wealdstone, Harrow, HA3 7RB

    Conversion of detached garage at rear to provide a single storey dwelling house ( 1 x 1 bed); Replace garage doors with door and window in front elevation; Replace door with window in side elevation; External alterations; Cycle and Refuse storage

    30 Jun 2026 Full applications
  • 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

    30 Jun 2026 Full applications
  • PL/1777/26 Status unknown

    11 London Road, Harrow, HA1 3JJ

    Refurbishment and replacement of windows and door to the basement and ground floor front, side and rear elevations

    29 Jun 2026 Full applications
  • PL/1743/26 Status unknown

    49 Kings Way, Harrow, HA1 1XT

    Single and two storey side extension; external alterations: Conversion of dwellinghouse (C3) into a 6 person HMO (C4); refuse / cycle storage (demolition of attached garage)

    25 Jun 2026 Full applications
  • PL/1710/26 Status unknown

    4 Kenton Road, Kenton, Harrow, HA1 2BL

    Conversion of dwelling (C3) into house of multiple occupancy for up to 6 persons (Sui Generis)

    22 Jun 2026 Full applications