Permits, Applications, and Forms

Snohomish County Planning and Development Services is responsible for reviewing and issuing a wide variety of permits and land use applications, including: residential and commercial building permits, boundary line adjustments, subdivisions, driveway aprons to the right-of-way, clearing and grading, public events, firework stands, and others.

Residential permit applications may be submitted in our office on a first-come first-serve basis. Complex commercial and land use permits are submitted by appointment only.

Accessory Apartments

  1. Accessory Apartment Submittal Checklist (PDF)
  2. Site Plan Examples Combined (PDF)

Agricultural/Farm-Related Business

  1. Agricultural Activities and Farm Related Business Submittal Checklist (PDF)

Boundary Line Adjustments (BLA)


Visit the Boundary Line Adjustments webpage for more information on the process of adjusting boundary lines.

Burn Permits


Find information regarding burn permits on the Fire Marshal / Code Enforcement Division webpage.

Commercial Building Permits


Examples of Commercial Building Permits include:
  • Antennas
  • Apartment Buildings
  • Condominiums
  • Fire Alarm Systems
  • New Commercial Buildings or Additions
  • Personal Wireless Telecom Facilities
  • Retaining Walls
  • Signs and Billboards
  • Tenant Improvements

Critical Areas


Disclosure Notices/Forms


Driveway Permits


Find information regarding driveway permits on the Right-of-Way Use webpage.

Engineering Review


Research the county's grading, drainage, and clearing requirements.

Fireworks



Flood Hazard



Forest Practices


Items needed for a Forest Practices application include:

Innocent Purchaser


Land Use Permits or Approvals


Examples of land use permits include:
  • Binding Site Plans
  • Conditional Use Permits
  • Official Site Plans
  • Rezones
  • Shoreline
  • SFDU
  • Subdivisions
  • Variances

Lot Status



Low Impact Development (LID) Projects



Permit Vacation


Pre-Applications

  1. Critical Area Verification Pre-Application and Checklist (PDF)
  2. Land Use Pre-Application and Checklist (PDF)
  3. Residential Pre-Application and Checklist (PDF)

Playing Fields Program

  1. Playing Fields Program Registration Form (PDF)

Public Notice Payment

Residential Building Permit Application


Examples of Residential Permits include:

  • Decks
  • Docks
  • Example Plans
  • Fences
  • Garages
  • Mobile-Manufactured Homes
  • Retaining Walls
  • Single Family, Duplex, and Accessory Buildings
  • Private Storage Structures
  • Swimming Pools

Transfer of Development Rights (TDR)

  1. TDR Conservation Easement (PDF)
  2. TDR Fee Schedule (PDF)
  3. TDR Letter of Intent Sample (PDF)
  4. Transfer of Development Rights Application (PDF)

Temporary Dwelling for a Relative

  1. Site Plan Examples Combined (PDF)
  2. Temporary Dwelling for Relative Submittal Checklist (PDF)
  3. Temporary Dwelling Physicians Statement (PDF)
  4. Temporary Dwelling Questionnaire (PDF)
  5. Application for Annual Renewal-Temporary Dwelling for Relative