48 Saxonia Boulevard Brooklands Milton Keynes MK10 7FQ

1. 12 Apr 2023

   Received by Milton Keynes

2. 17 Apr 2023

   Validated

   Checked as complete and ready for consideration.

3. 12 Jun 2023

   Decision issued: Refused

4. 1 Sep 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

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

• 11 Ark Royal Brooklands Milton Keynes MK10 7FW

  20/00418/CLUP Submitted 17 Feb 2020 20m away

  Certificate of lawfulness for proposed single storey rear extension

  Granted Lawful development Extension 15 docs
  Small domestic

• 6 Trafalgar Drive, Brooklands, Milton Keynes, MK10 7ER

  PLN/2025/1741 Submitted 21 Aug 2025 125m away

  The conversion of the garage into living space and the erection of single storey rear and side extensions to the existing garage

  Granted Householder Extension 6 docs
  Small domestic

• 36 Maritime Way Brooklands Milton Keynes MK10 7FS

  22/02970/CLUP Submitted 30 Nov 2022 130m away

  Certificate of lawfulness for a loft conversion with dormer extension to rear roofslope and rooflights to front roofslope.

  Granted Lawful development Extension Loft or dormer 5 docs

• 10 Saxonia Boulevard Brooklands Milton Keynes MK10 7FQ

  20/00624/CLUE Submitted 6 Mar 2020 156m away

  Certificate of lawful exiting use for rear conservatory.

  Granted Lawful development Extension 7 docs

• 50 Saxonia Boulevard Brooklands Milton Keynes MK10 7FQ

  19/02648/FUL Submitted 11 Oct 2019 181m away

  Single storey rear extension and loft conversion

  Granted Full applications Extension Loft or dormer 9 docs
  Small domestic

• 11 Maritime Way, Brooklands, Milton Keynes, MK10 7FR

  24/01635/CLUP Submitted 25 Jul 2024 191m away

  Certificate of lawfulness for a loft conversion with dormer and sun-tunnel to the rear elevation and rooflights to the front roofslope

  Granted Lawful development Loft or dormer 4 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