Building Permit Information

Building Inspector

Walter Grotelueschen

Town Hall Phone:  (262) 675-0415
Home Office Phone: (262) 675-0909
Email: building@townoftrenton.wi.gov
Office Hours - Wednesdays - 3:00 - 5:00 p.m.

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

Payment types accepted:

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

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

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

WE Energies Clearance Guidelines

Mailbox Guidelines

Building Permit Applications - NEW RATES IN 2026 - PLEASE USE THE LATEST FORM