49 Grantchester Street Cambridge Cambridgeshire CB3 9HZ
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
Roof extension with rear pitched dormer, raising of ridge height, 2no. rooflights to front and juliette balcony to rear. Replacement of rear french doors with black steel framed doors.
- Received
- 3 September 2026
- Decision due
- 29 October 2026
- Council
- Cambridge City Council
- Ward
- Newnham
- Agent
- Ely Planning Company (Cambridgeshire)
- ReceivedReceived3 Sep
- ValidatedValidated3 Sep
- Consult.Consultation14 Oct
- TargetTarget Date29 Oct
- DecidedDecided
About this application
This is a full planning application for a dormer extension at 49 Grantchester Street Cambridge Cambridgeshire CB3 9HZ. Cambridge has handled 1,534 applications of this type. It has been with the council since 3 September 2026 and is still awaiting a decision. The site is in the Newnham Croft conservation area. There are no previous applications recorded at this address. In the past year there have been 188 applications across Newnham. We hold 690 applications in total for the CB3 postcode area.
90% of full applications at Cambridge City Council were approved. Across all application types, the council typically decides in about 7 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Application details
- Postcode
- CB3 9HZ
- Application type
- Householder Works/Extension
- Scale / size
- Small
- District
- Cambridge City Council
Planning application dates
- Date validated
- 3 September 2026
- Consultation expiry
- 23 September 2026
- Last date for comments
- 14 October 2026
Applicant and agent
- Agent
- Ely Planning Company (Cambridgeshire)
- Agent address
- Studio 5 Penn Farm Harston Road Haslingfield CB23 1JZ Gb
Planning decision
- Statutory period
- 56 days
Publicity
- Last advertised
- 23 September 2026
- Site notice start
- 21 September 2026
Additional information
- Documents
- 10
Site constraints
Designations that overlap or adjoin the site outline.
- Flood zone 2: Medium probability (rivers and sea)
- Conservation area: Newnham Croft
Also checked, none recorded (23)
flood storage areas, listed buildings, Article 4 directions, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Source: Cambridge
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Around this site
Nearby applications
- 53 Grantchester Street Cambridge Cambridgeshire CB3 9HZ25/1218/TTCA · TreesApproved0.0 mi
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- 63 Grantchester Street Cambridge Cambridgeshire CB3 9HZ26/01675/HFUL · FullAwaiting decision0.0 mi
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For applicants and trades
Before the decision
You may need a flood risk assessment. Drainage & flood risk consultants near this site
The site is in flood zone 2 (Environment Agency).
- 22.8 miBedfordRTPI
- 22.9 miBishop's Stortford
- 28.2 miHalsteadRTPI
Nearest first, within 50 miles of the site. Every firm is listed free.
Contractors near this project
Find contractors for extensions near this site- Lux Electrical Installtions LtdElectrician1.1 mi
- Cambridge Eco Build & ElectricalElectrician1.2 mi
- Complete Electrical Solutions (East Anglia) LtdCommercial & industrial electrical installationsElectrical Installations within Dwellings (Part P)1.4 mi
- Henry Rose InteriorsKitchen & Bathroom1.6 mi
Planning something similar?
See what the council approved and refused for loft conversions and dormers on your street. Pick your home and get the evidence before you pay for drawings.