Commercial Tenant Build-Out or Remodels

This guideline has been developed to assist you in your efforts to build-out/remodel a commercial space. Prior to building-out/remodeling a commercial space, a permit must be obtained from the City of Wheaton Building Department. Provided below is information that addresses what needs to be submitted to the City, pertinent building codes, permit fees and required inspections. These guidelines are by no means all-inclusive, but they do identify the most critical requirements that are involved in this type of project. Please review this information and contact the City of Wheaton Building Department with questions.

Required Submittals
The following documents need to be submitted to initiate a review of your project:

Application for Permit
Application for Permit shall include: site address, description of work, contractor(s), total cost of work to be performed, permit applicant contact information, etc. Note: If contractors have not yet been determined, note “TBD” (to be determined) next to each applicable contractor for the project. Prior to permit issuance, the list of contractors and cost of work breakdown will need to be submitted. Cost of work is used to determine the permit fee and the contractors listed need to be “Registered” with the City of Wheaton prior to permit issuance.

Contractor Registration - Please see Contractor Registration Guidelines.

Construction Building Plans
Submit three (3) sets of Signed & Sealed Construction Building Plans. Plans must depict the full scope of work. Questions regarding building plan submittal should be directed to the Commercial Plan Reviewer at (630) 260-2048.

COMcheck (Envelope, Lighting, and Mechanical)
Provide one (1) original signed and sealed Envelope, Lighting and Mechanical Comcheck at time of permit submittal. When preparing each Comcheck, the Assembly Components evaluated must be clearly identified because default values may not be applicable. The most current accepted versions for “NEW ADDITION/COMMERCIAL” are the 90.1 (2013) Standard and the 2015 IECC. NOTE: Section 1 on Comcheck must be fully completed: Construction Site - complete address; Owner/Tenant - complete name, address and phone number of the Owner or Tenant; and Designer/Contractor -complete name, address and phone number of either Designer or Contractor. Also, the appropriate boxes pertaining to the specific project must be “√” marked and the item(s) must be shown/referenced on the five (5) sets of construction building plans; any item(s) that does not apply must be marked as “N/A” (Not Applicable) next to each box in writing. The Compliance Statement for each Comcheck must be signed and sealed by a licensed professional (i.e., professional engineer, engineer, architect, etc

Water Service Line (Sizing if adding new plumbing fixtures)
If adding additional water service fixtures a Water Service Fixture Count document must be submitted Water Service Line - Sizing. To prepare this document you must determine how many units share the same water meter with the unit applying for the tenant buildout/remodel (this information can be obtained from either the Owner or Property Manager). The number and the commercial load values for the “Existing” water service fixtures will need to be provided, as well as the number and commercial load values of the “New and/or Proposed” water service fixtures. Questions regarding Commercial Load Value calculations should be directed to the Water Division at (630) 260-2090.

Sewer Permit
The sanitary sewer system in Wheaton drains to and is serviced by the Wheaton Sanitary District or DuPage County, see attached map to determine which agency you will need to contact to obtain a sewer permit from them. Each agency has its own submittal requirements available on their web page, once approved please provide a copy of permit, or copy of email if "no permit required" from Wheaton Sanitary District, to the Wheaton Building Department.

Wheaton Sanitary District: 1 S 649 Shaffner Rd. Wheaton, Il 60189, 630-668-1515, e-mail completed application to

DuPage County - Public Works Department: 421 N. County Farm Rd. Wheaton, Illinois 60187, 630-407-6800, Fax 630-407-6701,

Addition to a single-family dwelling, less than 800 sq. ft., does not require a sewer permit. 

Applicable Codes
See Codes and Design Criteria to determine what codes, laws and/or regulations may be applicable to your project.

To schedule an inspection
Please call (630) 260-2050 between 8:00 a.m. and 5:00 p.m. Monday through Friday. Plumbing inspections are available on Tuesday or Thursday only. Please allow for a minimum of 24 hours notice
when scheduling inspections. Inspections must be scheduled no later than 3:00 p.m. the day before the desired inspection date. Inspection Scheduling Guideline.

Type of Inspection
When to Call
Once forms are in place, but prior to pouring concrete.
Underground Electrical and/or Plumbing
Call after the pipe is laid, prior to concealment.
Foundation/Slab Pre-pour
After all underground inspections have passed inspection.
Electrical Service
Once meter, ground and main service panel installed.
Rough Framing, Electrical & Mechanical
Once all rough-ins completed, prior to concealment.
Rough Plumbing
Once all piping has been installed, prior to concealment.
After all rough-ins have passed inspection, but prior to drywall installation.
Above Ceiling Electrical, Mechanical, and Plumbing
After grid has been installed, but prior to the installation of the tile.
Above Ceiling Sprinkler
When piping and sprinkler head locations are installed.
Rough Fire Alarm
When conduit and boxes have been installed.
Final Plumbing
Once all fixtures are in place and operable.
Final Fire Alarm
When equipment is installed (including radio transmitter), equipment and system tested and tie-in has been completed. Final Tie-in to DuComm shall be witnessed by City inspector.
Final Fire Sprinkler
When alarm system is fully functional and all tampers and flows are installed.
Prior to stocking the unit with product.
Final Electrical, Mechanical and Building
When project is completed and unit is stocked, but prior to occupancy.

Permit Fees
For associated Building fees, please refer to Appendix B7 Fee Schedule per the Wheaton City Code - Building Fee Schedule.

Plan Review Fees:
At the discretion of the City of Wheaton Building Department Director plans can be sent to a third-party code review agency. This determination will be made only after the plans have been received and reviewed. Review fees would be forwarded to the permit applicant and paid at the time of permit issuance.


Other Governmental Agencies
Prior to permit issuance permits may be required from outside government agencies including, but not limited too:

  • DuPage County Health Department (Handling of Food)
  • DuPage County or Wheaton Sanitary District (Sewer Permit)

Contact Us
City of Wheaton Building & Code Enforcement Department
Address: 303 W. Wesley Street, Wheaton, IL 60187

Phone Calls:

  • Submittal Questions: 630-260-2050
  • Inspection Scheduling: 630-260-2050
  • Building Code Questions: 630-260-2048
  • Zoning Code Questions: 630-260-2008
  • Fax: 630-260-2195 (contractor registrations, certificates of insurance & bonds)

Business hours: Monday - Friday 8:00 a.m. - 5:00 p.m.

Revised 11/7/2019