16 Windsor Street Bletchley Milton Keynes MK2 2LN

1. 19 Aug 2019

   Received by Milton Keynes

2. 17 Sep 2019

   Decision issued: Approved

3. 4 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

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

  PLN/2026/1170 Submitted 2 Jun 2026 39m away

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

  Granted Lawful development Extension Loft or dormer 5 docs

• 48 OSBORNE STREET, BLETCHLEY, MILTON KEYNES, MK2 2LR

  PLN/2025/1737 Submitted 20 Aug 2025 65m away

  Prior Approval of single storey rear extension, with eaves of 2.7 metres and maximum height of 4 metres, extending 5.7 metres from the original rear wall

  Granted Prior approval Extension 5 docs
  Small domestic

• 17 Clifford Avenue Bletchley Milton Keynes MK2 2LT

  23/00752/HOU Submitted 29 Mar 2023 89m away

  The erection of a proposed rear annexe for independent living accommodation (Resubmission of 22/02377/HOU)

  Granted Householder 13 docs
  Domestic

• 17 CLIFFORD AVENUE, BLETCHLEY, MILTON KEYNES, MK2 2LT

  PLN/2026/1539 Submitted 21 Jul 2026 89m away

  92% historically approved · decision due ~2 Oct

  Erection of an annex

  Awaiting decision Householder 3 docs
  Domestic

• 2 CLIFFORD AVENUE, BLETCHLEY, MILTON KEYNES, MK2 2LT

  PLN/2026/1015 Submitted 15 May 2026 89m away

  Proposed erection of rear conservatory and first-floor side extension to create ancillary annexe accommodation

  Granted Householder Extension 5 docs
  Small domestic

• 17 Clifford Avenue Bletchley Milton Keynes MK2 2LT

  19/02658/FUL Submitted 14 Oct 2019 103m away

  Erection of bungalow with parking for new and existing dwelling.

  Refused Full applications 15 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