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
- 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
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
-
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.
Trade members open them from here.
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 500 metres
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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.
Decided 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/2026/1280 Granted
4 FAR LAWRENCE, MOULSOE, MILTON KEYNES, MK16 0FF
Variation of condition 2 (approved plans) seeking to increase the depth of the proposed double storey rear extension and amend fenestrations (relating to permission ref. PLN/2026/0382 - Erection of rear dormer and a double storey rear extension and alterations to existing windows/doors)
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PLN/2026/1807 Awaiting decision
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/2026/1545 Withdrawn
63 MOORES HILL, YARDLEY ROAD, OLNEY, MK46 5DY
Variation of condition 2 (approved plans) seeking changes to the approved porch and kitchen/utility space (relating to permission ref. PLN/2026/0722 for the proposed erection of single and two storey side extension, single storey rear extension and front porch)
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PLN/2026/1793 Awaiting decision
33 PASTERN PLACE, DOWNS BARN, MILTON KEYNES, MK14 7RB
Non-material amendment seeking to alter approved doors and windows (relating to permission ref. 23/01292/HOU for Replace existing conservatory with single storey rear extension with roof lights and side and rear canopy, log burner flue and single storey front infill extension forming link to the existing garage. New windows and door to ground floor side elevation)
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PLN/2026/1604 Refused
23 FOLLY LANE, NORTH CRAWLEY, NEWPORT PAGNELL, MK16 9LN
Non-material amendment seeking to amend the approved double garage doors with two glazed panels and a reduced porch (relating to permission ref. PLN/2025/2287 for the extension to existing double garage with a new roof configuration to the front elevation)