23 Porthleven Place Fishermead Milton Keynes MK6 2AZ

1. 12 Dec 2022

   Received by Milton Keynes

2. 28 Apr 2023

   Decision issued: Refused

3. 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

• 97 Penryn Avenue Fishermead Milton Keynes MK6 2BH

  19/02065/CLUP Submitted 14 Aug 2019 106m away

  A single storey rear extension of 3m, full width of the building. Move front door to the side wall of the property.

  Granted Lawful development Extension 12 docs
  Small domestic

• 119 PENRYN AVENUE, FISHERMEAD, MILTON KEYNES, MK6 2BH

  PLN/2026/1474 Submitted 10 Jul 2026 106m away

  73% historically approved · decision due ~14 Sep

  Certificate of lawfulness for existing change of use from dwellinghouse (use Class C3) to HMO (use Class C4)

  Awaiting decision Lawful development 4 docs
  Domestic

• 51 Porthleven Place Fishermead Milton Keynes MK6 2BA

  23/00198/CLUE Submitted 27 Jan 2023 122m away

  Certificate of Lawfulness for existing use as a C4 house in multiple occupation

  Refused Lawful development 10 docs

• 60 Porthleven Place Fishermead Milton Keynes MK6 2AU

  20/01796/FUL Submitted 27 Jul 2020 148m away

  Conversion of existing carport/garage and addition of a new external side door

  Refused Full applications 8 docs

• JUBILEE WOOD PRIMARY SCHOOL, FALMOUTH PLACE, FISHERMEAD, MILTON KEYNES, MK6 2LB

  PLN/2026/0654 Submitted 25 Mar 2026 158m away

  Prior approval for the installation of solar panels to roof

  Granted Prior approval 11 docs

• 66 Gurnards Avenue Fishermead Milton Keynes MK6 2BL

  20/01262/FUL Submitted 1 Jun 2020 159m away

  First floor infill extension.

  Granted Full applications Extension 10 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• PLN/2026/1586 Withdrawn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