Planning application
26/02872/CL2PD
3 Montreal Road Cambridge Cambridgeshire CB1 3NP
Proposal
Certificate of lawfulness under S192 for a rear roof extension with box dormer.
As published by the council, reference 26/02872/CL2PD
Timeline
Dates from the published record
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29 Jul 2026
Received by Cambridge
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1 Aug 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Cambridge 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.
About lawful development applications
How this application type works
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.
Nearby applications
Within 500 metres
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25/02764/CONDA Awaiting decision
1 - 2 Montreal Square Cambridge Cambridgeshire CB1 3NR
Submission of details required by conditions 5 (traffic management plan) and 18 (biodiversity net gain plan) of planning permission 25/02764/FUL
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26/02124/FUL Awaiting decision
1-3 Flat Brookfields Cambridge Cambridgeshire CB1 3NW
Retrospective installation of Security roller Shutters to front and side elevations.
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24/02950/FUL Granted
195 Perne Road Cambridge Cambridgeshire CB1 3NT
Erection of six residential dwellings along with access, car and cycle parking, landscaping and associated infrastructure works following demolition of existing buildings.
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26/00977/FUL Awaiting decision
43 Brookfields Cambridge Cambridgeshire CB1 3NZ
Demolition of existing dwelling and the construction of 4 No. self-build dwellings, car club space, cycle storage and landscape planting.
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26/02687/FUL Awaiting decision
Brookfields Health Centre Seymour Street Cambridge Cambridgeshire CB1 3DQ
Retention of existing modular building for a period of 5 years from July 2026
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22/04882/HFUL Granted
72 Hobart Road Cambridge Cambridgeshire CB1 3PT
Loft conversion with rear facing dormer windows. Detached single storey garden room to rear.
Other lawful development applications
In Cambridge
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26/02824/CL2PD Awaiting decision
Bailey House Block 66-89 Rustat Avenue Cambridge Cambridgeshire CB1 3PG
Certificate of lawfulness under S192 for the retention of the existing masonry outer leaf, with localised removal and reinstatement of brickwork where required to facilitate the installation of new cavity barriers and fire-stopping measures, removal of the existing weatherboard cladding system and replacement with a new non-combustible cladding build-up, including calcium silicate sheathing board, Tyvek breather membrane, non-combustible support framework, cavity barriers, fire-stopping measures, EPDM membranes and associated trims, removal of existing timber balcony decking and privacy screen boards and replacement with non-combustible composite decking and aluminium privacy screen systems. removal of existing timber screen boards to bin and cycle stores and removal of timber soffit boards to entrance canopies, with replacement non-combustible aluminium screen profiles and composite soffit boards installed and associated installation of cavity barriers and fire-stopping measures where required within the external wall construction.
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26/02825/CL2PD Awaiting decision
Bailey House Block 26-65 Rustat Avenue Cambridge Cambridgeshire CB1 3PG
Certificate of lawfulness under S192 for the retention of the existing masonry outer leaf, with localised removal and reinstatement of brickwork where required to facilitate the installation of new cavity barriers and fire-stopping measures, removal of the existing weatherboard cladding system and replacement with a new non-combustible cladding build-up, including calcium silicate sheathing board, Tyvek breather membrane, non-combustible support framework, cavity barriers, fire-stopping measures, EPDM membranes and associated trims, removal of existing timber balcony decking and privacy screen boards and replacement with non-combustible composite decking and aluminium privacy screen systems, removal of existing timber screen boards to bin and cycle stores and removal of timber soffit boards to entrance canopies, with replacement non-combustible aluminium screen profiles and composite soffit boards installed and associated installation of cavity barriers and fire-stopping measures where required within the external wall construction.
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26/02835/CL2PD Awaiting decision
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.
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26/02834/CL2PD Awaiting decision
Sherman House Rustat Avenue Cambridge Cambridgeshire CB1 3RF
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.
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26/02827/CL2PD Awaiting decision
Adams House Rustat Avenue Cambridge Cambridgeshire CB1 3RE
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.