34 LANGCLIFFE DRIVE, HEELANDS, MILTON KEYNES, MK13 7LA

1. 13 Jul 2026

   Received by Milton Keynes

2. 13 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 15 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 8 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Milton Keynes took a median of 56 days over the applications it decided in the last year.

This application is with Milton Keynes for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

• 51 Langcliffe Drive Heelands Milton Keynes MK13 7LA

  19/03249/FUL Submitted 5 Dec 2019 81m away

  Rear dormer to the dwellinghouse

  Granted Full applications Loft or dormer 6 docs
  Domestic

• 14 Langcliffe Drive Heelands Milton Keynes MK13 7LA

  20/00814/FUL Submitted 30 Mar 2020 103m away

  Two storey side extension to the property.

  Granted Full applications Extension 15 docs

• 8 East Dales, Heelands, Milton Keynes, MK13 7PH

  PLN/2025/2077 Submitted 2 Oct 2025 142m away

  Change of use from a dwellinghouse (Class C3) to residential children's care home (Class C2) for four children aged 7-17 years with conversion of existing double garage and external alterations

  Withdrawn Full applications 7 docs
  Domestic

• 16 Bleasdale Heelands Milton Keynes MK13 7NA

  19/02603/CLUP Submitted 8 Oct 2019 245m away

  Proposed garage conversion

  Granted Lawful development 6 docs

• 29 Smithergill Court, Heelands, Milton Keynes, MK13 7LT

  PLN/2025/2628 Submitted 9 Dec 2025 254m away

  Certificate of Lawfulness for the existing use of the property as HMO (Class C4) (resubmission of PLN/2025/2347)

  Granted Lawful development 14 docs

• 29 Smithergill Court, Heelands, Milton Keynes, MK13 7LT

  PLN/2025/2347 Submitted 4 Nov 2025 254m away

  Certificate of Lawfulness for the existing use of the property as C4 House in Multiple Occupation

  Refused Lawful development 8 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