23 Owlstone Road Cambridge Cambridgeshire CB3 9JH
Proposal
Part single storey, part two storey rear and side extension, new pitched roof to existing rear flat roof and installation of new rooflights to front, side and rear elevations.
- Received
- 4 November 2025
- Decided
- 8 January 2026 · Granted Permission
- Decision level
- Delegated (officer decision)
- Council
- Cambridge City Council
- Ward
- Newnham
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.
- ReceivedSubmitted4 Nov
- ValidatedValidated13 Nov
- Consult.Consultation18 Dec
- TargetTarget Date8 Jan
- DecidedDecided8 Jan
Decided in 56 days (council typically 49)
This is a full planning application for a side extension at 23 Owlstone Road Cambridge Cambridgeshire CB3 9JH. Cambridge has handled 1,470 applications of this type and approves 91% of them, typically deciding them in 60 days. This one was decided in 65 days, 5 days longer than Cambridge's median. The site is in the Newnham Croft conservation area. There have been 2 other applications at this address. In the past year there have been 165 applications across Newnham. We hold 606 applications in total for the CB3 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Cambridge
Track this application
Get email alerts when there is a planning decision or status change.
Get email alerts near CB3
New planning applications delivered to your inbox weekly.
Associated applications
- 202629 Jun
Non-material amendment on ref: 25/04289/HFUL
PendingNon-material amendmentAmendment25/04289/NMA1 - 20254 Nov
Part single storey, part two storey rear and side extension, new pitched roof to existing rear flat roof and…
This applicationApprovedFull25/04289/HFUL
Planning history at this site
1 other application at this property, newest first.
Planning constraints
Designations that overlap or adjoin the site outline.
- Flood zone 2: Medium probability (rivers and sea)Part of the site
- 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 2026-10-09. 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.
What's been approved on your street?
See what the council approved and refused near this address for the project you have in mind, and the rules that apply here.