Planning application
40 PORTLAND DRIVE, WILLEN, MILTON KEYNES, MK15 9JP
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.
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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
Timeline
Dates from the published record
-
20 Feb 2026
Received by Milton Keynes
-
20 Mar 2026
Decision issued: Approved
-
10 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
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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
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 documentsWhat 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
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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
Granted Householder Extension Demolition 17 docsSmall domestic -
2 Linford Lane Willen Milton Keynes MK15 9DL
Alterations to existing dwelling and single storey side extension.
Granted Full applications Extension 22 docsSmall domestic -
2 Linford Lane Willen Milton Keynes MK15 9DL
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 docsSmall domestic -
42 Portland Drive Willen Milton Keynes MK15 9JP
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
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
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 docsSmall domestic
Other amendment applications
In Milton Keynes
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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))
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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
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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)
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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)
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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)