Hillsboro Bylaws: Floodplain, Historic, Trees, Parking, EV

Land Use and Zoning Oregon 4 Minutes Read · published March 01, 2026 Flag of Oregon

This guide explains key municipal rules in Hillsboro, Oregon on floodplain management, historic preservation, tree protections, parking regulations and electric vehicle (EV) infrastructure. It summarizes where to find official standards, how enforcement works, common compliance steps and how to apply for permits or variances. It is aimed at property owners, developers, contractors and community members who need actionable next steps for land use, site work and parking/EV installations in Hillsboro.

Floodplain rules

Floodplain development and permitting in Hillsboro are governed by the city’s land use and building rules and by referenced federal floodplain standards; specific requirements and the local ordinance text are available from the municipal code and the Planning Division pages for development review. Hillsboro Municipal Code[1]

If your property is in a mapped flood zone, start project planning with the Planning Division before work begins.

Historic preservation

Designated historic resources and historic districts in Hillsboro are regulated through local preservation provisions in the municipal code and managed by the Planning Division’s historic preservation program. Review requirements often apply to exterior alterations, demolition, and changes affecting designated landmarks; see the Planning Division for designation criteria and review procedures. Hillsboro Planning Division[2]

Trees and street trees

Tree protection and street-tree requirements are included in Hillsboro land use and development standards and may require permits for removal or pruning of regulated trees, particularly in development situations or within right-of-way. Check the municipal code and Planning/Engineering permit pages for protected tree lists and replacement standards. Hillsboro Municipal Code[1]

Parking rules and EV infrastructure

Parking standards, required parking counts, accessible parking, and rules for electric vehicle charging installations are set by the city’s development code and building-permit requirements. Site design and parking lot improvements typically require plan review; EV charging installations may require electrical permits from the Building Division. See the Building Division for permit steps and requirements. Hillsboro Building Division[3]

Installers should confirm electrical permit requirements with the Building Division before ordering equipment.

Penalties & Enforcement

Enforcement of bylaws related to floodplain activities, historic resources, tree protections, parking and EV installations is carried out under the municipal code by the City’s enforcing departments (Planning, Building, Code Compliance or designated enforcement officers). The municipal code and department pages describe enforcement pathways, inspection rights and remedies; specific penalty amounts and detailed escalation tables are provided in code sections where published or are noted as not specified on the cited page below.

  • Fines: specific monetary fines and per-day continuing penalties are not specified on the cited page for all topics; consult the municipal code sections cited below for any numeric penalties.[1]
  • Escalation: first, repeat and continuing offense rules are governed by code procedures; exact escalation ranges are not specified on the cited page where not published.
  • Non-monetary sanctions: stop-work orders, restoration or mitigation orders, permit revocation, abatement and civil or administrative citations are possible under the code; criminal prosecution may be available for willful violations depending on the ordinance language.
  • Enforcer and complaint intake: enforceable actions are handled by Planning, Building, or Code Compliance (contact via department pages listed in Resources); inspection requests and complaints follow the city’s official intake process.[2]
  • Appeals and review: appeals of administrative decisions or citation determinations are made per the procedures in the municipal code; time limits for appeals are established in the code sections for land use and administrative review and are not specified on the cited page where not published.
Common enforcement steps include notices, opportunities to cure, and then administrative citations or stop-work orders.

Applications & Forms

Permit and application processes typically use forms and submittal checklists maintained by Planning and Building. Common items:

  • Building permits and electrical permits for EV chargers: application and fee information available from the Building Division; fees vary by project and are listed on the Building page.[3]
  • Land use permits, historic review and tree removal permits: application forms and submittal checklists are on the Planning Division pages; some reviews require public notice and hearings.
  • Fees and deposits: project-specific; see the department pages for current fee schedules or state that fees are not specified on the cited page where not published.
If a formal variance or historic review is likely, allow extra time for public notice and hearings.

Common violations and typical responses

  • Work without required permits (building, electrical, land use): likely result is stop-work, permit application requirement and possible fines.
  • Unauthorized tree removal or pruning of protected trees: restoration or replacement orders, mitigation and citations may apply.
  • Altering a designated historic resource without review: required restoration, reversal or mitigation and potential penalties.
  • Noncompliant parking layouts or inaccessible parking: correction orders and reinspection requirements.

Action steps

  • Confirm zoning, floodplain status and historic designation at pre-application or over-the-counter review with Planning.
  • Obtain required building and electrical permits before installing EV chargers.
  • Report suspected code violations through the designated complaint/contact pages of the enforcing department.

FAQ

Do I need a permit to remove a tree on my property?
Often yes for regulated or protected trees and for trees in public right-of-way; check the municipal code and Planning/Engineering permit rules for specifics.
How do I know if my property is in a floodplain?
Consult the city’s mapping resources and the municipal code; contact the Planning Division for confirmation and floodplain-development requirements.
What approvals are required to install an EV charger at a business or multi-unit building?
Electrical and building permits are typically required; land use review may be needed for site changes—consult the Building and Planning Divisions.

How-To

How to apply for a building or land-use permit related to these topics:

  1. Pre-application: contact Planning or Building to confirm required permits and submittal checklists.
  2. Prepare drawings and documentation: include site plans, flood elevations (if applicable), tree reports, and historic documentation as required.
  3. Submit application and pay fees: use the department’s online or counter submission process; track reviews and respond to completeness requests.
  4. Inspections and approvals: schedule inspections and obtain final approvals before occupancy or use.

Key Takeaways

  • Start with Planning and Building early to identify permits and avoid stop-work orders.
  • Allow time for public notice and historic review where applicable.

Help and Support / Resources

  1. [1] Hillsboro Municipal Code - library.municode.com
  2. [2] Hillsboro Planning Division - hillsboro-oregon.gov
  3. [3] Hillsboro Building Division - hillsboro-oregon.gov

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