Construction Permit Application Information

If you are planning to do any type of construction in the public way in Cambridge you must have a permit.  Below is a brief description of permit types.  Click here for the cost of each permit. 

Contractor Payment Information
In order to access the permit system and apply for a permit you must have a user name and password.  Visit the City of Cambridge On-Line Permit Program, registration and log-on links are in the upper left hand corner of screen.  Once logged in you can find the requirements for each of the permits.  Click here for a complete set of instructions on how to use the system.  If you have any questions about permits, please contact the Permit Desk at 617.349.4833 or email

Sidewalk Obstruction (No Excavation)
A sidewalk obstruction permit is required if you are obstructing a sidewalk on a City of Cambridge right-of way.

Excavation and Trench Permit
An excavation and trench permit is required if you are excavating or trenching on private property or a public right-of way in the City of Cambridge.
Crane, Boom and Pump Truck Permit
A crane, boom and pump truck permit is required if you are using a crane, boom truck, boom lift, man lift, lull, scissor lift or pump truck on a City of Cambridge right-of way.

Discharge and Dewatering Permit
This permit is required to regulate any discharges to the municipal stormwater or wastewater system from dewatering or pumping activities, changes in discharges from existing conditions, and the discharge of fats, oils, and grease.

Temporary Construction Access Permit

Please visit our Contractor Resources Webpage for additional information.

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Dept of Public Works

147 Hampshire St
Cambridge MA 02139


Hours of Service

Monday: 8:30am-8pm
Tuesday-Thursday: 8:30am-5pm
Friday: 8:30am-12pm