17 TWINFLOWER, WALNUT TREE, MILTON KEYNES, MK7 7LH

1. 15 Jan 2026

   Received by Milton Keynes

2. 9 Mar 2026

   Decision issued: Refused

3. 10 Aug 2026

   Added to PlanIndex

Milton Keynes refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 8 Twinflower Walnut Tree Milton Keynes MK7 7LH

  19/02725/NMA Submitted 16 Oct 2019 100 yards away

  Non material amendment to 18/01636/FUL window to new en-suite, conversion of a window to a door on the ground floor.

  Granted Amendments Windows or glazing 6 docs

• Verge by The Venue MK, Hindhead Knoll, Walnut Tree, MK7 7FH, Milton Keynes, MK7 7FH

  PLN/2025/2097 Submitted 3 Oct 2025 150 yards away

  Construction of micro energy storage facility with fence and associated work

  Granted Full applications 9 docs
  Small domestic

• 78 DUNCHURCH DALE, WALNUT TREE, MILTON KEYNES, MK7 7BU

  PLN/2026/1353 Submitted 25 Jun 2026 150 yards away

  Demolition of existing conservatory and construction of single storey rear extension, conversion of existing garage store to habitable space

  Granted Householder Extension Demolition 7 docs
  Small domestic

• 7 Hindhead Knoll Walnut Tree Milton Keynes MK7 7NR

  20/01126/NMA Submitted 1 May 2020 150 yards away

  Non material amendments to planning permission 19/01901/FUL to change approved west elevation rear single storey wall from glass to brick and the glass roof to the same single storey rear extension to be changed to tile and 3no Velux windows

  Granted Amendments Extension Loft or dormer +1 6 docs
  Small domestic

• 34 Pettingrew Close Walnut Tree Milton Keynes MK7 7LL

  19/02450/CLUP Submitted 17 Sep 2019 200 yards away

  Proposed loft conversion with a rear dormer

  Granted Lawful development Loft or dormer 5 docs

• 79 KHASIABERRY, WALNUT TREE, MILTON KEYNES, MK7 7DS

  PLN/2025/1929 Submitted 12 Sep 2025 250 yards away

  Single storey rear extension including the installation of a non-standard ground floor rear window (Retrospective) and replacement of Juliette balcony with window

  Granted Householder Extension Windows or glazing 6 docs
  Small domestic

• PLN/2026/1500 Granted

  ST GEORGE THE MARTYR, ST GEORGES WAY, WOLVERTON, MILTON KEYNES, MK12 5EX

  Certificate of lawfulness for the proposed widening and repair of the existing paving within the Churchyard

  Received 15 Jul, published by the council 15 Aug 2026 Lawful development
• PLN/2026/2064 Awaiting decision

  1 STANBRIDGE COURT, STONY STRATFORD, MILTON KEYNES, MK11 1NX

  Certificate of lawfulness for the proposed conversion of existing garage into a gym, shower room and utility room

  Received 5 Oct, published by the council 11 Oct 2026 Lawful development
• PLN/2026/1854 Granted

  6 ST CATHERINES AVENUE, BLETCHLEY, MILTON KEYNES, MK3 5EE

  Certificate of lawfulness for the proposed loft conversion including the installation of 2no. rooflights to the front roof slope and 2no. rooflights to the rear roof slope

  Received 3 Sep, published by the council 16 Sep 2026 Lawful development
• PLN/2026/1685 Refused

  53 BREARLEY AVENUE, OLDBROOK, MILTON KEYNES, MK6 2UB

  Certificate of lawfulness for the proposed change of use of dwellinghouse (Use Class C3) to provide residential care accommodation (Use Class C2) for looked after children

  Received 10 Aug, published by the council 22 Aug 2026 Lawful development
• PLN/2026/1665 Granted

  90 WHITE ALDER, STACEY BUSHES, MILTON KEYNES, MK12 6HF

  Certificate of lawfulness for the proposed stationing of a caravan in the rear garden

  Received 7 Aug, published by the council 22 Aug 2026 Lawful development