20 Haddington Close Bletchley Milton Keynes MK3 7TD

1. 17 Feb 2020

   Received by Milton Keynes

2. 27 Apr 2020

   Decision issued: Approved

3. 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

• 14 Galloway Close Bletchley Milton Keynes MK3 7TB

  20/00470/FUL Submitted 21 Feb 2020 86m away

  Proposed single storey rear extension and wood burning stove

  Granted Full applications Extension 6 docs
  Small domestic

• 67 Blackmoor Gate Furzton Milton Keynes MK4 1DA

  20/01069/CLUP Submitted 4 May 2020 161m away

  Certificate of lawfulness for the proposed single storey rear extension

  Refused Lawful development Extension 6 docs
  Small domestic

• 61 BLACKMOOR GATE, FURZTON, MILTON KEYNES, MK4 1DA

  PLN/2026/1147 Submitted 1 Jun 2026 174m away

  Proposed two storey rear extension, front single storey extension and part garage conversion

  Granted Householder Extension 4 docs
  Small domestic

• 67 Blackmoor Gate Furzton Milton Keynes MK4 1DA

  20/01567/FUL Submitted 1 Jul 2020 174m away

  Single storey rear extension

  Granted Full applications Extension 6 docs
  Small domestic

• 1 Kinross Drive Bletchley Milton Keynes MK3 7UE

  20/01802/FUL Submitted 27 Jul 2020 198m away

  Part two part single storey front and single storey rear extension

  Granted Full applications Extension 10 docs
  Small domestic

• 22 Trafalgar Avenue Bletchley Milton Keynes MK3 7UL

  19/02159/CLUP Submitted 27 Aug 2019 221m away

  Certificate of lawfulness for proposed internal alterations to create open plan kitchen and reception areas and new external multifold doorset

  Granted Lawful development 5 docs

• PLN/2026/1586 Withdrawn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