The Grading and Erosion Control Permit ensures that clearing, grading, and fill work is performed in accordance with approved plans and in a manner that does not adversely affect adjacent properties.

It also ensures that the rules that have been established to protect and enhance the quality of the Tualatin River watershed are followed during and after construction. Even though a construction project might be small, the cumulative effect of sediment loss from all project sites necessitates maximum effort to prevent sediment from entering the waterways directly or through the storm collection system.

A Grading and Erosion Control Permit is required when one or more of these conditions apply to your site:

• There is soil disturbance of over 500 square feet.
• The amount of excavation, fill or combination there of exceeds 20 cubic yards.
• The slope of the site is greater than 20%.
• Required as a Condition of Approval on a land use.

View an example Single Family Grading & Erosion Control Site Plan for Demolition.

Guidance and Application

The process to apply for a Grading and Erosion Control Permit is determined by the site disturbance area. Please refer to the Grading and Erosion Control Permit Guidelines for information on permit application submittal requirements based on site disturbance area.  

• Grading and Erosion Guidance Document
• EC Checklist
• Grading and Erosion Application

Required when development is approved and includes conditions for public infrastructure improvements.

Guidance and Application

• Public Infrastructure Guidance Document
• PIP Checklist 
• Public Infrastructure Application

A Private Utility Permit is required for the installation or alteration of underground utilities, site work, and ground disturbance of 1,000 square feet or more. A Parking Lot Permit is required for the building or altering of a parking lot.

This permit includes the restriping of accessible parking spaces when resurfacing or resealing an existing parking lot.

• Private Utility & Parking Lot Permit Application
• Private Utility & Parking Lot Checklist 

Required for any work conducted by residents, commercial businesses, or their hired contractors, in the public right-of-way or City-owned easements. Including:

• Public sidewalk repair
• New driveway or repair to existing approach
• Lateral connection (tap) to or disconnection from storm, sanitary, or water mainline
• Any other work requiring temporary closure of portion of public right-of-way

Guidance and Application

• Right-of-Way Application and Guidance Document
• Apply Online 
• User Guide for Online Application 

Required when planting, removing, replacing or major pruning of street trees as well as any tree care or vegetation maintenance that involves work in the public right-of-way.

Guidance and Application

• Tree Care Permit Application

Required for work conducted by franchise utility companies or their hired contractors, conducted in the public right-of-way or City-owned easements. Including:

• New utility installation or utility removal
• Boring or trenching
• Aerial coax cable lashing
• Install, replace, or removal of street light poles
• New pedestal installation
• Any other work requiring temporary closure of portion of public right-of-way

Guidance and Application

• Franchise Utility Guidance Document
• Franchise Utility Application 
• Apply Online
• Temporary Signal Shutdown Application

Required if food-service operations wish to conduct businesses in the public right-of-way:

• Brick-and-mortar food service establishments that wish to use available storefront public sidewalk space for their business (i.e., sidewalk café, tables and chairs, other equipment) 
• Mobile push cart/food cart businesses requesting to use public sidewalk space to sell food or other items

Guidance and Application

• Sidewalk Vendor Permit Application
• Sidewalk Café Adjacent Property Owner Consent Form
• Sidewalk/Mobile Vendor Guidance Document
• Sidewalk Café Example Diagrams

Required for installation of small cell equipment within the City of Hillsboro. Each installation requires its own permit.

Guidance and Application

• Small Cell Wireless Guidance Document

• Irrigation Meter Request Form 
• Temporary Meter Request Form