59 PORTHCAWL GREEN, TATTENHOE, MILTON KEYNES, MK4 3AL

1. 2 Feb 2026

   Received by Milton Keynes

2. 9 Apr 2026

   Decision issued: Approved

3. 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

• Rear of Flats 104 - 100, 114-124, 107-113 Porthcawl Tattenhoe Milton Keynes MK4 3AL

  19/02291/TPO Submitted 9 Sep 2019 56m away

  Works to G1 Mixed Trees, G2 Mixed Trees and G3 Ash as per application form

  Granted Trees 5 docs

• 11 Lowland Road Tattenhoe Milton Keynes MK4 3AP

  20/01682/NMA Submitted 13 Jul 2020 193m away

  Non material amendment to application 18/01284/FUL to add velux windows into the single storey extension

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

• 25 CROPWELL BISHOP, EMERSON VALLEY, MILTON KEYNES, MK4 2AH

  PLN/2025/1997 Submitted 23 Sep 2025 216m away

  The erection of a single storey rear extension and a single storey side extension

  Granted Householder Extension 4 docs
  Small domestic

• 17 COLSTON BASSETT, EMERSON VALLEY, MILTON KEYNES, MK4 2BU

  PLN/2026/0882 Submitted 29 Apr 2026 252m away

  The replacement of existing polycarbonate conservatory roof with replica tiled roof

  Granted Householder Extension 8 docs
  Small domestic

• 40 Belvoir Avenue Emerson Valley Milton Keynes MK4 2AB

  19/02378/FUL Submitted 17 Sep 2019 285m away

  Single storey side extension.

  Granted Full applications Extension 8 docs
  Small domestic

• 38 Belvoir Avenue Emerson Valley Milton Keynes MK4 2AB

  19/02746/FUL Submitted 21 Oct 2019 288m away

  Single storey side and front extension and raising roof to form room in roof with dormer window

  Granted Full applications Extension Loft or dormer +1 6 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