5 Montreal Road Cambridge Cambridgeshire CB1 3NP

1. 24 Aug 2026

   Received by Cambridge

2. 11 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 6 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Cambridge took a median of 52 days over the applications it decided in the last year.

This application is with Cambridge for determination, against a statutory target of eight weeks. Over the last year Cambridge decided lawful development applications in a median of 54 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 2 Montreal Road Cambridge Cambridgeshire CB1 3NP

  24/04034/FUL Submitted 28 Oct 2024 50 yards away

  Demolition of existing garden shed and erection of a single storey rear lean-to garden room.

  Granted Full applications Demolition 14 docs
  Small domestic

• 1-3 Flat Brookfields Cambridge Cambridgeshire CB1 3NW

  26/02124/FUL Submitted 8 Jun 2026 50 yards away

  Retrospective installation of Security roller Shutters to front and side elevations.

  Granted Full applications 21 docs

• 3 Montreal Road Cambridge Cambridgeshire CB1 3NP

  26/02872/CL2PD Submitted 29 Jul 2026 50 yards away

  Certificate of lawfulness under S192 for a rear roof extension with box dormer.

  Granted Lawful development Extension Loft or dormer 9 docs

• 1 - 2 Montreal Square Cambridge Cambridgeshire CB1 3NR

  25/02764/CONDA Submitted 13 Jul 2026 50 yards away

  98% historically approved · decision due ~7 Sep

  Submission of details required by conditions 5 (traffic management plan) and 18 (biodiversity net gain plan) of planning permission 25/02764/FUL

  Awaiting decision Conditions 9 docs

• 11 Brookfields Cambridge Cambridgeshire CB1 3NW

  24/03795/HFUL Submitted 9 Oct 2024 50 yards away

  Erection of multi-function garden room in the rear garden (following approved application 24/01926/HFUL)

  Granted Householder 11 docs
  Small domestic

• 15 Brookfields Cambridge Cambridgeshire CB1 3NW

  22/05199/HFUL Submitted 30 Nov 2022 50 yards away

  Loft conversion with rear facing dormer windows and single storey extension to rear.

  Granted Householder Extension Loft or dormer +1 23 docs
  Small domestic

• 26/02703/CL2PD Granted

  Unit 8 Restwell House Coldhams Road Cambridge Cambridgeshire CB1 3EW

  Certificate of lawfulness under S192 for a proposed change of use from a second-hand bookshop (Class E(a)) to an indoor gym (Class E(d))

  Received 16 Jul, published by the council 23 Jul 2026 Lawful development
• 26/02554/CL2PD Granted

  44 Falmouth Avenue Cambridge Cambridgeshire CB3 0UF

  Certificate of lawfulness under S192 for demolition of an existing timber garden shed and the erection of a single-story detached garden house within the rear garden, to be used for purposes purely incidental to the enjoyment of the main dwelling house.

  Received 6 Jul, published by the council 23 Jul 2026 Lawful development
• 26/02835/CL2PD Granted

  Brandt House Rustat Avenue Cambridge Cambridgeshire CB1 3RQ

  Certificate of lawfulness under S192 for the removal of the existing insulated render system and replacement with a new A1-rated Wetherby insulated render system.

  Received 27 Jul, published by the council 30 Jul 2026 Lawful development
• 26/02532/CL2PD Withdrawn

  Brooklands Court Brooklands Avenue Cambridge Cambridgeshire CB2 8BP

  Certificate of lawfulness under S192 for the replacement of timber windows and patio doors (1-20) to UPVC in Chartwell Green.

  Received 3 Jul, published by the council 23 Jul 2026 Lawful development
• 26/02307/CLUED Withdrawn

  83 Derwent Close Cambridge Cambridgeshire CB1 8DY

  S191 for the existing use of dwellinghouse to be used as a HMO for 4 persons.

  Received 18 Jun, published by the council 23 Jul 2026 Lawful development