Miami-Dade Sign Permit: Most permanent commercial business signs need approval before they can be installed. This guide explains the process in simple terms, including zoning, drawings, engineering, inspections, costs, and common permit delays.
MIAMI COMMERCIAL SIGN GUIDE • UPDATED AUGUST 2026
Need a Sign Permit in Miami-Dade? Start Here.
If you are planning a new storefront sign, channel letters, monument sign, pylon sign, LED display, or another permanent commercial sign, you should check the local requirements before fabrication begins.
The process may seem complicated at first, but it becomes much easier when it is broken into a few clear steps.
Quick Answer
In most cases, a permanent commercial sign needs local approval before installation. The exact rules depend on where the property is located, what type of sign you are installing, its size, how it is mounted, and whether it is illuminated.
The Sign Permit Process at a Glance
Most commercial sign projects begin with these three basic stages.
1. Check the Property
Find out which city or county has authority over the property and what zoning rules apply.
2. Prepare the Plans
Measure the property, design the sign, check zoning, and prepare any required drawings or engineering.
3. Get Approval
Submit the plans, answer review comments, receive approval, install the sign, and complete inspections.
What You’ll Learn in This Guide
✓ Who handles your permit
✓ What drawings may be required
✓ How zoning affects your project
✓ What causes permit delays
✓ How long approval can take
✓ What happens after approval
Written From Real Sign Industry Experience
Manny Sagot — Owner & Sign Industry Expert, King Signs Miami
Manny has more than 30 years of experience working with commercial signs, fabrication, installation, and permitting throughout South Florida.
Do You Need a Miami-Dade Sign Permit?
In most commercial applications, yes. Permanent exterior business signs and many illuminated signs need approval before installation.
One important thing to understand is that Miami-Dade County does not issue permits for every property located within Miami-Dade County.
A property inside the City of Miami, Miami Beach, Doral, Coral Gables, Hialeah, Homestead, or another municipality may have to follow that city’s own rules and permitting process.
Finding the correct jurisdiction is one of the first steps in the Miami-Dade sign permit process.
Miami-Dade Sign Permit Process: Step by Step
1. Confirm Which Government Has Jurisdiction
Before finalizing the sign design, determine whether the property is located in:
- Unincorporated Miami-Dade County
- City of Miami
- Miami Beach
- Doral
- Coral Gables
- Hialeah
- Homestead
- Another Miami-Dade municipality
This is important because sign sizes, setbacks, lighting rules, zoning requirements, and application systems can be different from one city to another.
Many properties in Kendall and other unincorporated areas are handled directly by Miami-Dade County. Always confirm the exact jurisdiction before completing the design.
2. Complete a Commercial Site Survey
A good commercial sign project usually begins with an accurate site survey.
The survey allows the sign company to inspect and measure the property before drawings are prepared.
A site survey may include:
- Building frontage
- Available wall space
- Existing signage
- Mounting conditions
- Electrical access
- Property setbacks
- Sign height
- Visibility from the road
3. Check the Zoning Rules
The proposed sign must meet the zoning rules that apply to the property.
Depending on the project, zoning reviewers may look at:
- Maximum sign area
- Sign height
- Building frontage
- Required setbacks
- Number of signs allowed
- Sign placement
- Illumination
- Distance from property lines
- Existing signage
- Monument or pylon location
- Special zoning district rules
Expert Tip: Check zoning before finalizing the design. Fabricating a sign first can become expensive if the city later requires the size, location, or construction to change.
4. Prepare Miami-Dade Sign Permit Drawings
A commercial sign permit usually requires more than a picture or rendering.
Depending on the project, the permit package may include:
- Sign dimensions
- Total square footage
- Building elevation
- Sign location
- Site plan
- Attachment details
- Mounting details
- Structural information
- Electrical information
- Power supply information
- Existing signage
- Engineering calculations when required
- Property owner authorization
- Contractor information
5. Submit the Application
Once the drawings and supporting documents are ready, they are submitted to the correct permitting authority.
Depending on the project, reviews may include:
- Zoning review
- Building review
- Structural review
- Electrical review
The exact departments involved will depend on the type of sign and where the property is located.
For current county information, visit the Miami-Dade County Building Department .
6. Respond to Review Comments
It is common for a reviewer to ask for more information or changes before approval.
Typical comments may involve:
- Missing dimensions
- Sign area calculations
- Setback information
- Attachment details
- Structural engineering
- Electrical details
- Property owner authorization
- Existing sign information
- Zoning compliance
An experienced sign contractor can help coordinate the corrections, work with the engineer, and resubmit the updated plans.
7. Receive Approval and Fabricate the Sign
Once all required departments approve the plans and the required fees are paid, the permit can be issued.
The sign should then be built according to the approved drawings and specifications.
If the dimensions, construction, mounting system, or electrical design changes after approval, a permit revision may be required.
8. Install the Sign and Complete Inspections
After fabrication, the sign can be installed according to the approved plans.
Depending on the project, inspections may include:
- Structural inspection
- Electrical inspection
- Final sign inspection
The project is not fully complete until all required inspections have been approved.
What Business Signs Usually Require Permits?
Commercial signage can range from simple storefront letters to large engineered structures.
Common types include:
- Channel letters
- Storefront signs
- Wall signs
- Illuminated cabinet signs
- Monument signs
- Pole signs
- Pylon signs
- Programmable LED signs
- High-rise building signs
Large Commercial Sign Permit Requirements
Large commercial signs may require more engineering and review than smaller storefront signs.
This can include:
- High-rise building signs
- Large wall signs
- Monument signs
- Pylon signs
- Large freestanding structures
- Illuminated signage
Additional requirements can involve:
- Wind-load engineering
- Structural attachment
- Building height
- Electrical requirements
- Sign area calculations
- Zoning restrictions
- Special district regulations
Sign Permits in the City of Miami
The City of Miami has its own sign regulations and permitting procedures.
Projects in Brickell, Downtown Miami, Wynwood, Coconut Grove, and other City of Miami neighborhoods should be reviewed under City of Miami requirements.
They should not automatically be treated as Miami-Dade County permits.
Large building signs, high-rise signs, rooftop signs, and properties in special zoning areas may require additional review.
Visit the City of Miami Sign Code for current official information.
Sign Permits in Miami Beach
Miami Beach has its own permitting and design requirements.
A typical commercial project may involve:
- Application
- Plan review
- Permit issuance
- Installation
- Required inspections
Additional Planning, Design Review, or historic requirements may apply depending on the location.
This is especially important for properties in historic districts or buildings with architectural restrictions.
Sign Permits in Doral
The City of Doral regulates permanent and temporary signage through its own municipal requirements.
Common projects in Doral include:
- Warehouse channel letters
- Corporate office signs
- Shopping-center signs
- Monument signs
- Pylon signs
- Illuminated business signs
- LED displays
The proposed design should be checked for zoning compliance before fabrication begins.
Sign Permits in Kendall
Kendall is different because much of the area is unincorporated Miami-Dade County rather than an independent city.
That means many commercial projects in Kendall are processed through Miami-Dade County.
Always verify the exact jurisdiction for the property address before starting the design and permitting process.
Monument and Pole Sign Permitting
Freestanding signs can require additional review because the supporting structure and foundation may also be part of the approval.
Reviewers may need information about:
- Overall sign height
- Required setbacks
- Foundation design
- Structural posts
- Wind-load engineering
- Electrical components
- Property lines
- Visibility requirements
What Causes Miami-Dade Sign Permit Delays?
After decades of working with commercial signage, many delays come from problems that could have been addressed before the plans were submitted.
Common causes include:
- Submitting to the wrong jurisdiction
- Designing the sign before checking zoning
- Exceeding the allowed sign area
- Missing structural details
- Missing attachment details
- Incomplete applications
- Missing property owner authorization
- Missing engineering documents
- Incorrectly prepared plans
- Not showing existing signage
- Not fully answering reviewer comments
The fastest permit is usually the one that is prepared correctly before it reaches the reviewer.
How Long Does a Miami-Dade Sign Permit Take?
There is no single approval time for every project.
A basic wall sign may move through review faster than a large monument sign, pylon sign, LED display, or high-rise building sign.
A more complicated Miami-Dade sign permit may require engineering, several departmental reviews, corrections, resubmissions, and inspections.
If you are planning a grand opening, renovation, or business rebranding, start the design and permitting process well before you need the sign installed.
How Much Does a Miami-Dade Sign Permit Cost?
The cost depends on the project.
Factors can include:
- Jurisdiction
- Sign type
- Sign size
- Electrical requirements
- Structural requirements
- Engineering
- Number of signs
- Required review departments
- Corrections or revisions
Because every property and project is different, there is no single permit price that applies to every commercial sign.
King Signs Miami can review the property and proposed signage to determine what will likely be required before the process begins.
Can You Install a Business Sign Without a Permit?
You should not assume that a permanent commercial sign can be installed first and permitted later.
Installing signage without required approval can result in:
- Code violations
- Additional fees
- Project delays
- Required redesigns
- Removal of the sign
- Reinstallation costs
Getting the proper approvals before fabrication and installation can prevent expensive problems later.
Miami-Dade Sign Permit FAQs
Do Channel Letters Need a Permit in Miami?
In most commercial applications, yes. Building-mounted channel letters usually require local approval.
If the letters are illuminated, electrical requirements may also apply.
Do LED Signs Need Permits?
Generally, yes. Electronic and illuminated displays must follow the zoning, building, and electrical requirements of the municipality where the property is located.
Do Monument Signs Need Permits?
Permanent monument and freestanding signs generally require approval.
They may also require setbacks, foundation details, structural engineering, and electrical information.
Does a Window Sign Need a Permit?
It depends on the size, construction, visibility, and location of the sign.
Always check the rules for the specific property before installing permanent commercial window signage.
Can King Signs Miami Handle My Miami-Dade Sign Permit?
Yes. King Signs Miami can coordinate permitting as part of a complete commercial signage project.
Services can include:
- Site survey
- Sign design
- Engineering coordination
- Permit processing
- Fabrication
- Installation
- Required inspections
Why Work With an Experienced Miami Sign Contractor?
A permit is only one part of a successful commercial signage project.
King Signs Miami can help manage the project from the first property visit through final installation.
- Consultation — Review the property, business, branding, and project goals.
- Site Survey — Measure the location and inspect installation conditions.
- Design — Create signage appropriate for the building and brand.
- Engineering & Permitting — Coordinate required drawings, documentation, and approvals.
- Fabrication — Manufacture the approved signage.
- Installation — Install the sign according to the approved plans.
- Inspection — Coordinate required final inspections.
See more completed commercial signage in the King Signs Miami Project Gallery .
KING SIGNS MIAMI
Need Help With a Miami-Dade Sign Permit?
Avoid designing and fabricating a sign only to find out later that the city or county will not approve it.
King Signs Miami can review your property, determine the likely requirements, and manage the project from design and permitting through fabrication and installation.
Serving businesses throughout Miami-Dade, Miami, Kendall, Doral, Miami Beach, Brickell, Downtown Miami, Wynwood, Coral Gables, and surrounding South Florida communities.
Reviewed by Manny Sagot | Owner & Sign Industry Expert | 30+ Years of Sign Industry Experience