Mechanical Permits

Important Note

All mechanical work associated with a building permit (including tenant improvements) is permitted as a component of the building permit. A separate permit will not be issued. If you are a subcontractor, please contact the general contractor or project manager to verify the proper plans were reviewed and approved for your portion of the work. All inspections may be requested at

Over the Counter (Non plan review)

You must apply online at to have a permit issued immediately. Over the Counter issuance is available for single family fixture installations including gas water heaters and appliances. Please note that electric water heater installation requires a plumbing permit and is also available online.

Plan Review Submittals

Process Overview

Visit our Process Overview page to learn about the general application process flow.

Submittal Requirements

Mechanical Rooftop Units

Mechanical rooftop units require plan review. Please submit a plan set that includes the following components:

Plan Set Requirements

Submit the following supplementals:

  • Equipment cut sheets
  • For equipment weighing over 400 pounds, provide structural calculations for over-turning, sliding and gravity.

Important Note: Submittals without screening details will not be accepted.

Generators - Residential

Residential generators require plan review. Please see our Submittal Requirements for Residential Generators (PDF) for required documentation.

Site plan must be submitted online at

Apply Online

You must apply for this permit online through We will not accept paper applications or plans.


See the Mechanical Fee Schedule (PDF) for rates.