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Planning application

40 PORTLAND DRIVE, WILLEN, MILTON KEYNES, MK15 9JP

Granted Milton Keynes PLN/2026/0351 Non-Material Amendment

Works: Extension Loft or dormer Demolition Windows or glazing Small domestic

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

Relates to PLN/2025/2249

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

Proposal

Non-material amendment seeking to amend window, door and rooflight layout (relating to permission ref. PLN/2025/2249 for Proposed demolition of existing conservatory and roof (part), Construction of new single storey rear extension with vaulted ceiling and installation of new PV array)

As published by the council, reference PLN/2026/0351

Application record

Reference
PLN/2026/0351
Type
Non-Material Amendment
Status
Decision Made
Decision
Granted As published: Approved
Received
20 Feb 2026
Validated
20 Feb 2026
Decided
20 Mar 2026
Ward
Broughton
Parish
Campbell Park
Decision by
Delegated Decision
Postcode
MK15 9JP

Site history

Applications at this address on the Milton Keynes register

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

  • PLN/2025/2249 Granted

    40 PORTLAND DRIVE, WILLEN, MILTON KEYNES, MK15 9JP

    Proposed demolition of existing conservatory and roof (part), Construction of new single storey rear extension with vaulted ceiling and installation of new PV array

    Decided 18 Dec 2025 Householder

Timeline

Dates from the published record

  1. 20 Feb 2026

    Received by Milton Keynes

  2. 20 Mar 2026

    Decision issued: Approved

  3. 10 Aug 2026

    Added to PlanIndex

Cases linked to this one on the register

  • PLN/2025/2249 Granted

    40 PORTLAND DRIVE, WILLEN, MILTON KEYNES, MK15 9JP

    Proposed demolition of existing conservatory and roof (part), Construction of new single storey rear extension with vaulted ceiling and installation of new PV array

    Decided 18 Dec 2025 Householder

Documents

Plans, drawings, consultee responses and the officer's report

7 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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Open the documents

What this grant of permission means

Milton Keynes granted permission on 20 March 2026, 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 amendment applications

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 40 PORTLAND DRIVE, WILLEN, MILTON KEYNES, MK15 9JP

    PLN/2025/2249 Submitted 24 Oct 2025 50 yards away

    Proposed demolition of existing conservatory and roof (part), Construction of new single storey rear extension with vaulted ceiling and installation of new PV array

    Granted Householder Extension Demolition 17 docs
    Small domestic
  • 2 Linford Lane Willen Milton Keynes MK15 9DL

    19/03419/FUL Submitted 20 Dec 2019 100 yards away

    Alterations to existing dwelling and single storey side extension.

    Granted Full applications Extension 22 docs
    Small domestic
  • 2 Linford Lane Willen Milton Keynes MK15 9DL

    20/01603/NMA Submitted 2 Jul 2020 100 yards away

    Non material amendment to application 19/03419/FUL for the formation of Porch to south (front) elevation by insetting entrance doorway, relocation of x1 skylight from east (side) elevation to north (rear) elevation, minor fenestration alterations (slight move of windows and doors and removal kitchen window) and colour of fenestration to be changed to RAL 7004 (Signal Grey).

    Granted Amendments Extension Windows or glazing 7 docs
    Small domestic
  • 42 Portland Drive Willen Milton Keynes MK15 9JP

    22/02616/CLUP Submitted 18 Oct 2022 100 yards away

    Certificate of Lawfulness for proposed alterations to adhere to the requirements of enforcement notice 4 (ENF/18/00283/COMPCH) as modified by appeal decision APP/Y0435/C/20/3247864

    Refused Lawful development 18 docs
  • 2 Linford Lane Willen Milton Keynes MK15 9DL

    20/00996/DISCON Submitted 24 Apr 2020 100 yards away

    Details submitted for discharge of condition 3 (Arboricultural survey/report, impact/method statemen and tree protection plan) condition 4 (construction details, nil-excavation an hard surfacng Gym and Car Port), condition 5 (method statement for execution of boundary works within RPA) and 6 (Schedule of external materials) relating to planning application 19/03419/FUL.

    Granted Conditions Trees 9 docs
  • Fox Covert 1 Linford Lane Willen Milton Keynes MK15 9DL

    20/01333/FUL Submitted 8 Jun 2020 150 yards away

    Alterations to dwelling: front extension with attic accommodation connecting to associated rooms and 2 storey front porch; replacement roof; single-storey side/rear extension; side extension with projecting rear canopy and attic room joined to remodelled outbuilding including front and side extensions to the latter to form west wing of dwelling incorporating triple garage with attic accommodation and associated rooms above; reconfiguration of driveway and installation of sliding access gate; associated landscaping.

    Refused Full applications Extension Roofing 44 docs
    Small domestic

In Milton Keynes

  • PLN/2026/1598 Granted

    57 MIDLAND ROAD, OLNEY, MK46 4BP

    Variation of condition 1 (Approved drawings) seeking to changes to the roof of the rear extension, first floor windows and enlarge the side porch extension (relating to permission ref. 24/00073/HOU for the two storey rear extension with gable dormer, infill existing canopy to create porch, new first floor window and connect garage rooves including new roof lights and provide bin storage below. (resubmission of 23/01375/HOU))

    Received 30 Jul, published by the council 15 Aug 2026 Amendments
  • PLN/2026/1807 Granted

    Local Centre, Tattenhoe Park, Milton Keynes, Milton Keynes, MK6 1LY

    Non-material amendment seeking the refinement of landscaping around the approved substation and minor revisions to the EV charging area layout (relating to permission ref. PLN/2024/2733 for the approval of reserved matters (access, layout, scale, appearance and landscaping) pursuant to outline permission ref. 17/00918/OUT for the erection of 4 units for a local centre. EIA development

    Received 27 Aug, published by the council 4 Sep 2026 Amendments
  • PLN/2026/1513 Granted

    10 FILGRAVE, NEWPORT PAGNELL, MK16 9ET

    Variation of condition 2 (approved plans) seeking to alter position of front door and window and amend rear windows (relating to permission ref. PLN/2025/2500 removal of existing side garage and erection of a 2 storey side extension and new side lean-to workshop, adjustments to front and rear doors and windows and addition of a new roof light)

    Received 16 Jul, published by the council 31 Jul 2026 Amendments
  • PLN/2026/1658 Withdrawn

    ATLAS FITNESS, GLYN SQUARE, WOLVERTON, MILTON KEYNES, MK12 5JQ

    Non-material amendment seeking to amend Condition 4 to replace the 'Prior to the first use of the premises' requirement from the cycle parking with 'within 4 months, details shall be submitted and approved, and shall be installed no later than 3 months after that approval' (relating to permission ref. PLN/2026/0754 for the change of use of existing building from Gym (Class E(d)) to a multi-purpose flexible and adaptable Community Arts Centre (Sui Generis), the replacement of a window with a door on the west elevation, relocation of door on south elevation and replacement roof)

    Received 6 Aug, published by the council 22 Aug 2026 Amendments
  • PLN/2026/2004 Awaiting decision

    2B CAMBRIDGE STREET, BLETCHLEY, MILTON KEYNES, MK2 2TP

    Variation of conditions 2 (approved plans) and 5 (maximum occupancy) seeking to amend the internal layout to maximise the internal layout and increase maximum occupancy to 37 (relating to permission ref. PLN/2026/1121 Proposed change of use from C2 (supported housing) to temporary staff accommodation (sui generis), including minor alterations to the parking layout and building interior)

    Received 25 Sep, published by the council 8 Oct 2026 Amendments