Landscaping Rules in Hillsboro, OR: What Residents Actually Need to Know

If you live in Hillsboro or are thinking about moving there, landscaping rules are one of those things you probably won't think about until they affect you directly. Hillsboro has 4 specific rules on the books covering different aspects of landscaping rules, and some of them might surprise you.

Water Restrictions

Hillsboro follows regional water conservation guidelines. Mandatory restrictions may apply during summer drought. Efficient irrigation is encouraged.

Key details: Provider: Joint Water Commission. Drought Rules: May apply during summer. Encouragement: Drought-resistant landscaping. Waste: Runoff discouraged.

During mandatory restrictions, violations result in warnings and fines.

Grass Height Limits

Hillsboro requires property owners to maintain vegetation. Overgrown grass and weeds trigger code compliance action.

Key details: Standard: No overgrown weeds/grass. Enforcement: Code Compliance. Process: Notice, deadline, citation. Abatement: City may mow and charge owner.

Violations result in notice, then citations. City may abate and charge the owner.

Tree Trimming

Hillsboro requires property owners to maintain trees for clearance over sidewalks (8 feet) and streets (14 feet).

Key details: Sidewalk: 8 feet clearance. Street: 14 feet clearance. Owner Duty: Maintain adjacent trees. Abatement: City may trim and bill.

Failure to maintain clearance results in notices and potential city abatement.

Tree Removal & Heritage Trees

Hillsboro regulates tree removal through its development code. Significant trees and street trees may require approval before removal.

Key details: Street Trees: City approval required. Significant Trees: May need permit. Replacement: May be required. Exemptions: Dead, hazardous trees.

Unauthorized removal of protected trees results in fines and replacement requirements.

The Bottom Line

Hillsboro's landscaping rules rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Hillsboro is broadly strict or permissive.

This guide is based on Hillsboro's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.