Introducing PAULIE: The City's New Permitting and Licensing Platform

PAULIE is the City of Saint Paul's new secure online system for permits, licenses, inspections, complaints, and more. This new platform: ​

  • Provides a secure, mobile-friendly way to submit and track applications.​
  • Centralizes the licensing and permitting process, from application through inspection and renewal.​

Learn how to apply through PAULIE and get answers to common questions.

Get Ready to Apply in PAULIE

Overview

Installation of any device using refrigerant for either comfort cooling or refrigeration of products (e.g., central air conditioners, chillers, heat pumps, walk-in coolers, walk-in freezers, refrigerated cases, etc.) requires a permit. If you have questions, contact the Mechanical Inspection Department at 651-266-9004 (7:30 am to 9:00 am, Monday - Friday), or email the DSI Message Center.

Code Requirements

See Chapter 33.04 of the Saint Paul Legislative Code for information about refrigeration work.

Expiration & Renewal

Each permit issued shall expire if the work authorized by the permit is not commenced within 180 days from the date issued, or if the work is suspended or abandoned at any time after the work has begun for a period of 180 days. In addition, exterior work done on a one or two-family dwelling (including garages) must be completed within one year from the date issued. Interior and exterior work done on commercial properties (including hotels and apartment buildings) where the permit valuation is under $500,000 must be completed within one year from the date issued. See Chapter 33.04 of the Saint Paul Legislative Code.

Refrigeration Board Meeting

Date: March 16, 2023
Time: 10:00 a.m. – 12:00 Noon
Location: DSI Office

Last Edited: September 17, 2025