Permit applications and digital plans can be submitted via email to Permits@townoftrenton.wi.gov

Payment types accepted:

• Cash
• Check (pay to Town of Trenton)
• Credit Card or e-check (fees apply)

Both paper and digital building plans must accompany applications for the following projects:

• New Home
• Addition
• Remodel
• Deck
• Fence
• Accessory Structure (shed, detached garage, etc)

Plan Review Checklist

WI DSPS Online Building Permit System

When building outside the existing footprint of any structure, such as an addition, deck or accessory structure, complete the following:

• Washington County Permit Signoff Self Certification Form
• Washington County Permit Application Review - Instructions

Fire Separation and dwelling unit separation (Wis. Stats. SPS 321.08)

WE Energies Clearance Guidelines

Mailbox Guidelines