103 Sedgwick Street Cambridge Cambridgeshire CB1 3AL
Approved on 9 August 2023
Council decision: Granted PermissionDelegated (officer decision)
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
Renovation and single storey rear extension, to EnerPHit Standards including partial rebuild of rear first floor outshot with new highly insulated structure, replacement windows and doors, replacement roof covering, installation of PV panels and air source heat pump.
- Received
- 23 May 2023
- Decision level
- Delegated (officer decision)
- Council
- Cambridge City Council
- Ward
- Romsey
- Agent
- Hole Architects
- ReceivedReceived23 May
- ValidatedValidated23 May
- Consult.Consultation7 Aug
- TargetTarget Date18 Jul
- DecidedDecided9 Aug
Decided in 78 days (council typically 49)
About this application
This is a full planning application for a single storey rear extension at 103 Sedgwick Street Cambridge Cambridgeshire CB1 3AL. Cambridge has handled 1,534 applications of this type. This one was decided in 78 days, 4 weeks longer than Cambridge's typical decision time. The site is in the Mill Road conservation area. There are no previous applications recorded at this address. In the past year there have been 102 applications across Romsey. We hold 1,406 applications in total for the CB1 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
- CB1 3AL
- Application type
- Householder Works/Extension
- Scale / size
- Small
- District
- Cambridge City Council
Planning application dates
- Date validated
- 23 May 2023
- Consultation expiry
- 7 August 2023
- Consultation start
- 17 July 2023
- Consultation end
- 7 August 2023
- Neighbour consultation end
- 20 June 2023
- Last date for comments
- 7 August 2023
- Target decision date
- 18 July 2023
- Permission expires
- 9 August 2026
Applicant and agent
- Agent
- Hole Architects
- Agent address
- Stealth Barn Dunstall Green Ousden Newmarket Suffolk CB8 8TZ
Planning decision
- Statutory period
- 56 days
Publicity
- Last advertised
- 7 June 2023
- Advertisement expiry
- 28 June 2023
- Site notice start
- 2 June 2023
- Site notice end
- 23 June 2023
Additional information
- Documents
- 26
- Constraints
- 9
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Mill Road
- Flood zone 1: Low probability (rivers and sea)
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
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Planning something similar?
See what the council approved and refused for single-storey rear extensions on your street. Pick your home and get the evidence before you pay for drawings.