8 O'neill Road Grange Farm Milton Keynes MK8 0PL

1. 4 Feb 2020

   Received by Milton Keynes

2. 6 Feb 2020

   Validated

   Checked as complete and ready for consideration.

3. 2 Mar 2020

   Decision issued: Approved

4. 2 Sep 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 1 Highmore Croft Grange Farm Milton Keynes MK8 0PP

  20/01439/FUL Submitted 18 Jun 2020 48m away

  Front porch extension to include downstairs WC

  Withdrawn Full applications Extension 3 docs
  Small domestic

• 1 Highmore Croft Grange Farm Milton Keynes MK8 0PP

  20/00846/CLUP Submitted 2 Apr 2020 55m away

  Certificate of lawfulness for proposed single story front extension to include porch and downstairs WC. Removal of existing slate pitched roof over porch and replaced with flat roof over proposed extension. Existing entrance door and window to be re-used in proposed

  Refused Lawful development Extension Windows or glazing 7 docs
  Small domestic

• 15 Wickstead Avenue Grange Farm Milton Keynes MK8 0NP

  20/00623/FUL Submitted 6 Mar 2020 104m away

  Change of use from house dwelling (C3) to multiple occupation (C4)

  Refused Full applications 10 docs
  Domestic

• 48 Garwood Crescent Grange Farm Milton Keynes MK8 0PS

  20/01464/FUL Submitted 19 Jun 2020 132m away

  First floor extension above the existing garage conversion and ground floor rear extension

  Refused Full applications Extension 12 docs

• 58 Garwood Crescent Grange Farm Milton Keynes MK8 0PS

  20/00297/FUL Submitted 4 Feb 2020 133m away

  Proposed replacement of existing rear conservatory with single storey rear extension.

  Granted Full applications Extension 8 docs
  Small domestic

• 25 Ashford Crescent Grange Farm Milton Keynes MK8 0NN

  22/02983/HOU Submitted 30 Nov 2022 196m away

  The erection of a part two story and part first floor side extension.

  Granted Householder Extension 14 docs
  Domestic

• PLN/2026/1586 Withdrawn

  4 BROMHAM MILL, GIFFARD PARK, MILTON KEYNES, MK14 5QP

  Certificate of lawfulness for the proposed garage conversion and side extension

  29 Jul 2026 Lawful development
• PLN/2026/1370 Refused

  15 CASTLE ROSE, WOUGHTON PARK, MILTON KEYNES, MK6 3BQ

  Certificate of lawfulness for the proposed construction of a low brick wall with railings (1.5 m overall), brick piers, sliding gate set 5 m from road, and pedestrian gate within domestic curtilage

  29 Jun 2026 Lawful development
• PLN/2026/1393 Refused

  2 GREATCHESTERS, BANCROFT, MILTON KEYNES, MK13 0PA

  Certificate of lawfulness for the proposed demolition of existing conservatory, erection of a new rear extension, infill the space under the carport and loft conversion with a rear dormer

  2 Jul 2026 Lawful development
• PLN/2026/1741 Awaiting decision

  5 Spring Mews, Sherington, MK16 9FT

  Certificate of lawfulness for the existing detached rear outbuilding for use as a garden studio

  18 Aug 2026 Lawful development
• PLN/2026/1170 Granted

  61 WINDSOR STREET, BLETCHLEY, MILTON KEYNES, MK2 2LN

  Certificate of lawfulness for proposed loft conversion with rear and side dormer extension and rooflights to front roof slope

  2 Jun 2026 Lawful development