Garage in Cambridge: Planning Permission Guide
A guide to building a garage in Cambridge under permitted development — rules, costs, and professional advice.
Check if your garage qualifiesGarages in Cambridge at a glance
approved
application fee
weeks typical
Based on 23 decided applications in Cambridge over 12 months (21 granted, 2 refused).
Cambridge has 13 conservation areas affecting external alterations in those zones. 19 Article 4 directions affect specific streets. 1,683 listed buildings recorded. Green Belt land covers parts of the borough. Cambridge planning is run by the Greater Cambridge Shared Planning Service (jointly with South Cambridgeshire).
Want your personalised odds?
Approval probability, 5 nearest comparables, refusal reasons — for your specific address.
Recent garage decisions in Cambridge
The 5 most recent decided applications. Addresses redacted to postcode area.
Erection of self-build dwelling and associated detached garage following demolition of existing building
Retrospective conversion of existing triple garage with storage area above to a triple garage with 1 No. self/custom build 1 bed flat above.
S73 to vary condition 1 (Approved plans) of planning permission 21/00577/S73 (73 variation of condition 1 (Approved plans ) of planning p…
Erection of a car port to the front of the dwelling.
Garage conversion to form habitable space and removal of rear single storey extension. Installation of render and casement windows, and r…
These are borough-wide. See the 5 nearest to your address.
Get my report — £9Permitted Development Rules
Buildings etc incidental to the enjoyment of a dwellinghouse
GPDO 2015, Schedule 2, Part 1, Class E
Garages fall under Part 1, Class E of the GPDO (the same class as outbuildings). They must be incidental to the enjoyment of the house.
Key dimension limits
These are the maximum GPDO limits for a detached house with no constraints. Your actual limits depend on your property type, location, and any planning restrictions.
Enter your postcode to see the personalised limits for your garage.
Check my limitsTypical Costs in East of England
Garage costs depend on size, whether it's attached or detached, and whether it includes electrics or additional rooms above.
Cost per m²
construction rate
Typical total
Based on 15–20 m²
Typically includes
Typically excludes
Single garage. Double garages and garages with rooms above will be significantly more.
Get a personalised cost estimate based on your actual garage dimensions.
Get my estimateWhich Professionals Do You Need?
A standard single garage can often be built from supplier designs. A garage with rooms above will need architectural and structural input.
A draughtsperson or architectural technician can prepare any drawings needed. A full architect may not be necessary.
Garden buildings and garages can often use supplier designs or simple drawings from a draughtsperson.
Typical fee: £500–£2,000 (Basic drawings)
A structural engineer may be needed if the garage has a room above or connects to the house.
Typical fee: £500–£1,500
May apply if the work is within 3 metres of a shared boundary. Check with your builder.
Typical fee: £700–£1,500 (per neighbour (if applicable))
This guidance is based on a typical semi-detached house with no special constraints. Listed buildings, conservation areas, and attached properties may require additional professional input.
Find out exactly which professionals you need for your garage.
Get personalised guidanceConservation Areas & Listed Buildings
In conservation areas, garages are subject to the same Class E rules. Consider using materials sympathetic to the area character.
Properties in conservation areas often have reduced permitted development rights. Some project types (like side extensions) lose PD rights entirely. An Article 4 Direction can remove additional PD rights.
Listed buildings (Grade I, II*, or II) have no permitted development rights at all. Any external alteration requires Listed Building Consent in addition to any planning permission. An architect experienced in heritage work is essential.
Check if your property is in a conservation area or has other planning constraints.
Check my propertyFrequently Asked Questions
Just want a quick yes/no for your garage?
Run our free 2-minute check to see whether your project likely qualifies as permitted development in Cambridge. For personalised approval odds and nearby comparables, get the full report above.
Free 2-min check