City Building Permits
Bay St. Louis, MS - 2026 Building Permit Guide
How to apply for a building permit in Bay St. Louis, Mississippi. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
All properties within the incorporated City of Bay St. Louis.
- Department
- City of Bay St. Louis Building Department
- Address
- 688 Highway 90, Bay St. Louis, MS 39520
- Phone
- 228-469-0531
Online Permit Portal
Platform: MyGovernmentOnline • Account required: Yes • Submission: Online only
Additional resources:
Application Process
- Register for a free account at www.mgoconnect.org
- Log in and select permit type (building, electrical, plumbing, tree removal, etc.)
- Complete and submit application online
- Pay permit fees through the online system
- Building Department reviews submission (typically within 3–5 business days)
- Receive permit number and approval (emailed or available in portal)
- Display permit at job site before work begins
- Schedule required inspections
Typical processing time: 3–5 business days for initial review.
General Requirements
All new construction, additions, structural modifications, electrical work, plumbing, HVAC installation, and similar projects require permits. Cosmetic repairs and maintenance do not.
Required Documents
- Completed permit application
- Site plan
- Construction plans
- Project scope information
- Proof of property ownership or authorization
- Building code
- 2018 International Building Code (IBC) and 2018 International Residential Code (IRC)
- Contractor requirements
- Contractors must be licensed through the Mississippi State Board of Contractors (MSBOC) if work value exceeds $10,000 (residential) or $50,000 (commercial).
Fees
- Payment note
- Fees are available on the Bay St. Louis website or by contacting the Building Department at 228-469-0531. Fees are based on project value and type.
Work That Does NOT Require a Permit
Contact the City of Bay St. Louis Building Department to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- MGO Connect portal (online)
- 228-469-0531 (phone)
- Inspection hours
- Monday–Friday, 8:00 AM to 5:00 PM
Typical inspection sequence: Typical stages: Footing/Foundation Inspection, Framing/Rough-In Inspection, Insulation/Fireblocking Inspection, Final Inspection.
Additional Resources
- Building code: 2018 International Building Code (IBC) and 2018 International Residential Code (IRC)
- Verify contractor license: Mississippi State Board of Contractors License Lookup
- Zoning information: View zoning info
- Design Guidelines Ordinance
- Mississippi Department of Marine Resources — Coastal Zone & Wetlands Permits
- License lookup guide: Mississippi Contractor License Requirements
- Contract template: Mississippi Homeowner-Contractor Agreement
- Mississippi hub: Mississippi Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of Bay St. Louis Building Department before applying.
Frequently Asked Questions
Bay St. Louis Building Permit FAQ
- Do I need a building permit in Bay St. Louis, MS?
- All new construction, additions, structural modifications, electrical work, plumbing, HVAC installation, and similar projects require permits. Cosmetic repairs and maintenance do not.
- How do I apply for a building permit in Bay St. Louis, MS?
- 1. Register for a free account at www.mgoconnect.org 2. Log in and select permit type (building, electrical, plumbing, tree removal, etc.) 3. Complete and submit application online 4. Pay permit fees through the online system 5. Building Department reviews submission (typically within 3–5 business days) 6. Receive permit number and approval (emailed or available in portal) 7. Display permit at job site before work begins 8. Schedule required inspections
- How long does it take to get a building permit in Bay St. Louis, MS?
- Typical processing time is 3–5 business days for initial review..
- How do I schedule a building inspection in Bay St. Louis, MS?
- Inspections can be scheduled via: MGO Connect portal, 228-469-0531.
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