Land to the west of Johnsons Field, Olney, Milton Keynes, MK46 5JF

1. 12 Mar 2026

   Received by Milton Keynes

2. 23 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 May 2026

   Decision issued: Approved

4. 10 Aug 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

• 9 Johnsons Field Olney MK46 5JF

  20/00533/FUL Submitted 28 Feb 2020 0m away

  Single storey rear extension

  Granted Full applications Extension 10 docs
  Small domestic

• 4 Johnsons Field Olney MK46 5JF

  23/00779/CLUP Submitted 31 Mar 2023 0m away

  Certificate of Lawfullness for a proposed dormer to rear of existing roof slope

  Granted Lawful development Loft or dormer 6 docs

• 43 West Side Rise Olney MK46 5HP

  20/00910/FUL Submitted 13 Apr 2020 94m away

  Single storey rear extension with replacement roof to existing lean to and the removal of internal wall

  Granted Full applications Extension Roofing 9 docs
  Small domestic

• 7 West Side Rise Olney MK46 5HP

  23/00584/HOU Submitted 10 Mar 2023 140m away

  The erection of a proposed single storey rear extension with roof light. New rear door. New rear patio with steps to garden

  Granted Householder Extension Loft or dormer 14 docs
  Small domestic

• 7 West Side Rise Olney MK46 5HP

  23/00479/CLUP Submitted 28 Feb 2023 140m away

  Certificate of Lawfulness for the proposed erection of a single storey rear extension

  Withdrawn Lawful development Extension 13 docs
  Small domestic

• 36 West Side Rise Olney MK46 5HP

  20/01534/CLUP Submitted 29 Jun 2020 162m away

  Certificate of lawfulness for the proposed single storey lean-to side extension with velux roof lights. Glazed rear gable opening out onto the garden and a new external back door. Existing window to stairwell to be reduced to accommodate new lean-to roof.

  Granted Lawful development Extension Loft or dormer +1 9 docs
  Small 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