Sign Regulations in Detroit, Michigan
Detroit, Michigan has specific sign regulations covering 27 sign types across 10 zoning districts. Regulated sign types include Portable Sign, Wall Sign, Window Sign. Height restrictions apply. Permits are required for most commercial signs. Use PermitPal to get instant access to the complete regulations.
Data last verified: September 19, 2025
Sign Regulation Overview for Detroit, Michigan
Sample Sign Requirements in Detroit
| Sign Type | Max Height | Max Area | Setback |
|---|---|---|---|
| Wall Sign | Not to exceed the height of the first story of the building or structure. Otherwise, not to exceed 40 feet or the roof/parapet height, whichever is less. | 10% of façade area | — |
| Window Sign | Not to exceed the second story of the building | 25% of window area | — |
| Portable Sign | 3 feet | 6 sq ft | For election signs: setback minimum 5 ft from front of premises |
* Sample data shown. Actual requirements may vary by zone. Use PermitPal for complete, location-specific regulations.
PermitPal Coverage for DetroitFull Coverage
Sign Types Covered
27
- Portable Sign
- Wall Sign
- Window Sign
- Directional Sign
- +2 more types
Zoning Districts
10
Different zoning districts with specific sign regulations
Data Includes
- Permit requirements
- Height restrictions
- Illumination rules
Official Resources for Detroit
Other Cities in Michigan
Frequently Asked Questions
In Detroit, wall signs can be up to Not to exceed the height of the first story of the building or structure. Otherwise, not to exceed 40 feet or the roof/parapet height, whichever is less.. Height limits vary by zoning district and sign type. Use PermitPal to get exact requirements for your specific location.
To get a sign permit in Detroit, submit an application to the local building or planning department with sign dimensions, location, and design specifications. Our data confirms permits are required for most commercial signs. Processing typically takes 1-4 weeks. PermitPal helps you identify specific requirements and prepare complete applications.
In Detroit, regulated sign types include Portable Sign, Wall Sign, Window Sign, Directional Sign, and 2 more types. Most commercial signs require permits. Temporary signs and certain small signs may be exempt. Use PermitPal for specific exemptions.
Sign setback requirements in Detroit vary by zone and sign type, typically ranging from 5-15 feet from property lines. Use PermitPal for specific setback requirements at your location.
Digital and LED signs in Detroit are regulated with specific requirements for brightness, animation, and message duration. Detroit has documented illumination rules in our database. Use PermitPal to see the exact requirements for electronic message centers.
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Detroit, Michigan Sign Rules at a Glance
Detroit, Michigan regulates 27 sign types across 10 zoning districts. Awning Signs in the R6 High Density Residential District, High-density residential/mixed use sign district zoning district are capped at Cannot exceed height of awning tall and 40% of awning area, with a Clearance not less than awning clearance setback (Sec. Sec. 4-4-33(a-g)). Most commercial signs in Detroit require a permit.
Detailed Sign Ordinance Requirements for Detroit, Michigan
Sign Rules by Zoning District in Detroit (10 zones)
| Zoning District | Sign Types Regulated | Max Height | Max Area | Permit Required |
|---|---|---|---|---|
| Low-density residential sign district, R1 Single-Family Residential District, R2 Two-Family Residential District, R3 Low Density Residential District, R4 Thoroughfare Residential District, R5 Medium Density Residential District | 5 | Not to exceed the height of the first story of the building or structure. Otherwise, not to exceed 40 feet or the roof/parapet height, whichever is less. | 25% of window area | — |
| R6 High Density Residential District, High-density residential/mixed use sign district | 10 | Up to 40 feet or roof/parapet height, whichever is less | 40% of awning area | — |
| Recreation/open space sign district, PR Parks and Recreation District | 9 | Up to 40 feet or roof/parapet height, whichever is less | 40% of awning area | — |
| Low-density commercial/institutional sign district, B1 Restricted Business District, B2 Local Business and Residential District, B3 Shopping District, B4 General Business District, B5 Major Business District, B6 General Services District, SD1 Special Development District, Small-Scale, Mixed-Use, SD2 Special Development District, Mixed-Use, SD4 Special Development District, Riverfront Mixed-Use, SD5 Special Development District, Casinos | 14 | Up to 40 ft or roof/parapet height, whichever is less | 60% of awning area | — |
| High-density commercial/industrial sign district, M1 Limited Industrial District, M2 Restricted Industrial District, M3 General Industrial District, M4 Intensive Industrial District, M5 Special Industrial District, B6 General Services District, W1 Waterfront-Industrial District, MKT Market and Distribution District | 15 | Up to 40 ft or roof/parapet height, whichever is less | 60% of awning area | — |
| Central Business District, Entertainment District (Zone 1: Entertainment Core), Entertainment District (Zone 2: Theater District), Entertainment District (Zone 3: Woodward North Corridor), Entertainment District (Zone 4: Entertainment Buffer), Downtown and Riverfront Overlay Areas | 7 | 60 ft | 5,000 sq ft (wall), 6,250 sq ft (painted) | — |
| Right-of-Way | 3 | 8 ft, 6 in | 18 sq ft (illuminated), 24 sq ft (non-illuminated) | — |
| Flood hazard overlay areas | 1 | — | — | — |
| Historic Districts | 1 | — | — | — |
| General Regulations For All Zones | 2 | Minimum 4 ft | 24 sq ft | — |
Zone-by-Zone Sign Requirements in Detroit(sample of 3 of 10 zones)
R6 High Density Residential District, High-density residential/mixed use sign district
| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Premium Details(Illumination, Size Formula, Permit Requirements, Additional Requirements — available with a free PermitPal account) | Ordinance Citation |
|---|---|---|---|---|---|---|---|---|---|
| Arcade Sign | — | 4 sq ft | — | — | Not more than one per entrance | Suspended underneath covered passageway at ingress/egress | — | Unlock | Sec. 4-4-32(b-e) |
| Awning Sign | Cannot exceed height of awning | 40% of awning area | — | Clearance not less than awning clearance | One per awning | Affixed to awning/canopy | — | Unlock | Sec. 4-4-33(a-g) |
| Monument Sign | 6 feet | 12 sq ft per face | — | — | One per premises | Ground/freestanding | — | Unlock | Sec. 4-4-39(a-e), (f), (g) |
| Projecting Sign | Cannot exceed roof line | 6 sq ft | — | — | One per premises; one per ground floor tenant on multi-tenant buildings | Affixed perpendicular to building wall/parapet | — | Unlock | Sec. 4-4-42(a-h) |
| Raceway Sign | Cannot exceed roof line or parapet | 1 sq ft per linear foot of building frontage | — | — | One per façade (or one per ground floor tenant on multi-tenant buildings) | Affixed to façade | — | Unlock | Sec. 4-4-43(a-h) |
| Wall Sign | Up to 40 feet or roof/parapet height, whichever is less | 40% of façade area | — | — | One per façade; one per ground floor tenant on multi-tenant buildings | Affixed to building façade | — | Unlock | Sec. 4-4-45(b-e) |
| Window Sign | Up to fourth story | 25% or 50% of window area per sign; max cumulated window signage 80 sq ft per building | — | — | One per window; buildings with first-floor glass paneling may post one sign per six feet | Affixed to window | — | Unlock | Sec. 4-4-46(b-f) |
| Portable Sign | 3 feet | 6 sq ft | — | — | One per premises; one per ground floor tenant for multi-tenant | See location restrictions at Sec. 4-4-41 | — | Unlock | Sec. 4-4-41 |
Low-density commercial/institutional sign district, B1 Restricted Business District, B2 Local Business and Residential District, B3 Shopping District, B4 General Business District, B5 Major Business District, B6 General Services District, SD1 Special Development District, Small-Scale, Mixed-Use, SD2 Special Development District, Mixed-Use, SD4 Special Development District, Riverfront Mixed-Use, SD5 Special Development District, Casinos
| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Premium Details(Illumination, Size Formula, Permit Requirements, Additional Requirements — available with a free PermitPal account) | Ordinance Citation |
|---|---|---|---|---|---|---|---|---|---|
| Awning Sign | Cannot exceed awning height | 60% of awning area | — | — | One per awning | Affixed to awning/canopy | — | Unlock | Sec. 4-4-33(b-g) |
| Marquee Sign | Height cannot exceed sum of marquee height plus half façade vertical height | Façade area of marquee | — | — | One per façade | Affixed to marquee | — | Unlock | Sec. 4-4-37 |
| Monument Sign | 10 ft (exception: up to 15 ft for CRC retail centers) | 20 sq ft (exception: up to 150 sq ft for CRC-designated retail centers) | — | — | One per premises (see exception above for large frontage) | Ground/freestanding | — | Unlock | Sec. 4-4-39(b-g) |
| Pole Sign | 15 ft (for ≤80 ft ROW width); 25 ft (>80 ft ROW width); cannot exceed tallest building height on premises | 12 sq ft | — | At least half the sign height from front premises line | One per premises (one per 400 ft of frontage, with separation ≥400 ft) | Ground/freestanding | — | Unlock | Sec. 4-4-40 |
| Projecting Sign | Cannot exceed roof line | 12 sq ft | — | — | One per premises; one per ground floor tenant for multi-tenant | Affixed perpendicular to exterior wall/parapet | — | Unlock | Sec. 4-4-42 |
| Raceway Sign | Cannot exceed roofline/parapet | 1 sq ft per linear ft of façade | — | — | One per façade; one per ground floor tenant for multi-tenant | Affixed to façade | — | Unlock | Sec. 4-4-43 |
| Roof Sign | Up to 15 ft above roofline/parapet or maximum building height, whichever is less | Based on linear building width/clearance | — | — | One per premises | Affixed to roof, for buildings at least ten stories, no high-rise sign on premises | — | Unlock | Sec. 4-4-44 |
| Wall Sign | Up to 40 ft or roof/parapet height, whichever is less | 60% of façade area | — | — | One per façade; one per ground floor tenant for multi-tenant | Affixed to exterior wall | — | Unlock | Sec. 4-4-45 |
High-density commercial/industrial sign district, M1 Limited Industrial District, M2 Restricted Industrial District, M3 General Industrial District, M4 Intensive Industrial District, M5 Special Industrial District, B6 General Services District, W1 Waterfront-Industrial District, MKT Market and Distribution District
| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Premium Details(Illumination, Size Formula, Permit Requirements, Additional Requirements — available with a free PermitPal account) | Ordinance Citation |
|---|---|---|---|---|---|---|---|---|---|
| Awning Sign | Cannot exceed awning height | 60% of awning area | — | — | One per awning | Affixed to awning/canopy | — | Unlock | Sec. 4-4-33 |
| Marquee Sign | Sum of marquee height plus 1/2 vertical dimension of the façade | Façade area of marquee | — | — | One per marquee façade | Affixed to marquee | — | Unlock | Sec. 4-4-37 |
| Monument Sign | 10 ft (15 ft CRC retail centers) | 20 sq ft per face (150 sq ft for CRC retail centers) | — | — | One per premises (multi allowed with separation and large frontage) | Ground | — | Unlock | Sec. 4-4-39 |
| Pole Sign | 15 ft (≤80 ft ROW); 25 ft (>80 ft ROW); can't exceed tallest building on premises | 20 sq ft | — | ≥1/2 sign height from frontage | One per premises; one per 400' of frontage, separation ≥400' | Ground | — | Unlock | Sec. 4-4-40 |
| Projecting Sign | Cannot exceed roofline | 12 sq ft | — | — | One per premises; one per ground floor tenant | Perpendicular from wall/parapet | — | Unlock | Sec. 4-4-42 |
| Raceway Sign | Cannot exceed roofline/parapet | 1 sq ft per linear ft of façade | — | — | One per façade; one per ground floor tenant | Affixed to wall | — | Unlock | Sec. 4-4-43 |
| Roof Sign | Up to 15 ft above roofline/parapet or max building height | Varies by linear building width and clearance | — | — | One per premises | Affixed to roof; buildings ≥10 stories, no high-rise sign on premises | — | Unlock | Sec. 4-4-44 |
| Wall Sign | Up to 40 ft or roof/parapet height, whichever is less | 60% façade area | — | — | One per façade (one per floor tenant in multi-tenant buildings) | Affixed to exterior wall/parapet | — | Unlock | Sec. 4-4-45 |
PermitPal covers all 10 zoning districts in Detroit — full sign requirements for every zone, plus illumination rules, size formulas, and permit requirements for every sign type — with a free account.
See all 10 zones for Detroit — start freeProhibited Signs in Detroit
- It shall be unlawful for any person to violate any provision of this article or to aid and abet another to violate such provision. (Sec. 4-1-2, Sec. 4-2-1, Sec. 4-3-2, Sec. 4-5-1, etc.)
- It shall be unlawful for any person to affix, fasten, post, paint, or otherwise place any advertising sign, advertising material, or other commercial message of any kind upon any public or private property, or cause or authorize the same to be done, without the authorization of the owner thereof or its agent. (Sec. 4-1-4)
- It shall be unlawful to carry or place on any freeway overpass any advertising sign, advertising material, or other commercial message that would be oriented toward and visible to the occupants of vehicles on such freeway. (Sec. 4-1-5)
- It shall be unlawful for any person with intent to solicit, promote, sell, lease, loan, or otherwise dispose of any event, commodity, service, security, real or personal property, or any other thing of value, to circulate, disseminate, publish, or broadcast, or otherwise place or distribute, any advertising sign, advertising material, or other commercial message that is knowingly false, deceptive, misleading, or otherwise calculated to cause injury or other disadvantage to its audience or any member thereof. (Sec. 4-1-6)
- It shall be unlawful for any person to place or distribute, or to cause the same, any advertising sign, advertising material or other commercial message soliciting any event, commodity, service, or other thing of value in any public right-of-way, so as to interfere with or impede any pedestrian, bicycle, or vehicular traffic along or within such right-of-way. (Sec. 4-2-3)
- Solicitation at posted residential premises prohibited (‘No Trespassing,’ ‘No Handbills,’ ‘Post No Bills,’ etc.). (Sec. 4-2-4)
- It is unlawful to advertise any alcoholic liquor or tobacco product on an advertising sign within a 1,000-foot radius of any advertisement-sensitive property. (Sec. 4-3-4)
- The following sign types are prohibited city-wide unless expressly allowed elsewhere: signs that substantially cover or conceal architectural features; wrapped signs operated as advertising signs; signs illuminated by/equipped with strobe or flashing lights; signs affixed to or supported by rocks, trees, or other natural features; signs affixed to or supported by fences or screening walls; dynamic sign on a currently registered motor vehicle; signs that produce sound, interfere with communications, produce/reflect motion pictures (unless animated), emit smoke, vapors, particles, or odors. (Sec. 4-4-7)
- Posting or constructing a sign, or performing any sign alteration, without having been issued a permit for such sign is unlawful, except certain temporary or small window signs. (Sec. 4-4-17)
- Operating or maintaining a sign without having been issued a license for such operation is unlawful, except portable temporary signs or small window signs. (Sec. 4-4-17)
- No sign may be altered in any way if permitted as an advertising sign in the Central Business District; alteration is cause for immediate revocation. (Sec. 4-4-127)
- No permit may be issued for new/altered advertising signs outside Central Business District except upon waiver and findings, including traffic safety, aesthetics, tax and code compliance, and spacing. (Sec. 4-4-102)
- No sign that constitutes an obsolete sign for at least 30 consecutive days, or any temporary sign for 7 consecutive days, may be presumed by the City to have been abandoned and must be removed. (Sec. 4-4-10)
- Signs located on vacant buildings must be removed within 30 days upon notice. (Sec. 4-4-11)
- Unused sign supports that do not actually support a legal sign face shall be removed within 30 days of notice. (Sec. 4-4-12)
Exempt Signs in Detroit
- Any display that is painted on or otherwise affixed to a currently registered motor vehicle that is used for transportation purposes in the normal course of business or other establishment. (Sec. 4-4-8(1))
- Window displays of actual merchandise for sale. (Sec. 4-4-8(2))
- Displays that are carried on or by a person. (Sec. 4-4-8(3))
- Any notice alerting the public of the presence of an alarm, security, or surveillance system. (Sec. 4-4-8(4))
- Any notice warning against trespassing, soliciting, or other interference with the property owner's enjoyment of their property. (Sec. 4-4-8(5))
- Alerts, announcements, warnings, or other notices as may be required by applicable federal or state law or city code for protection of the public peace, health, safety, and welfare. (Sec. 4-4-8(6))
- Building numbers not more than 12 inches in height and displayed in accordance with Sec. 43-2-12. (Sec. 4-4-8(7))
- Public service announcements promoting protection of public peace, health, safety, and welfare. (Sec. 4-4-8(8))
- Displays of official governmental, court, or public agency orders or notices. (Sec. 4-4-8(9))
- Displays of flags, emblems, or official insignia of a national, state, or local political unit or its departments/agencies. (Sec. 4-4-8(10))
- Art murals. (Sec. 4-4-8(11))
- Heritage signs. (Sec. 4-4-8(12))
- Architectural and other lighting operated in accordance with lighting standards set forth in this Code. (Sec. 4-4-8(13))
- Any sign erected by a federal, state, or local governmental agency or authority. (Sec. 4-4-8(14))
Sign Plan & Submission Notes for Detroit
- Applications for sign permits must include a site plan to scale showing existing conditions of the premises, including all buildings, structures, existing signs, proposed sign location, and all public/private rights-of-way, pedestrian paths, driveways, etc. (Sec. 4-4-19(a)(9) and (10))
- Applications for sign permits must provide a summary of all existing and proposed signs, including description, location/setback, purpose, whether new/alteration, height, clearance, area, construction, illumination, dynamic/animated operation, specifications/calculations, and land use designation. (Sec. 4-4-19(a)(11))
- Copies of all permits and other approvals required by other governmental agencies (e.g. MDOT, Planning Dept, Historic District Commission, Dept of Public Works) must be submitted with the sign permit application. (Sec. 4-4-19(a)(12), 4-4-15, 4-4-162)
- Any dimensional or operational standard may be subject to waiver/adjustment by petition to the Director of the Planning and Development Department, including a completed waiver application, sign application as per Sec. 4-4-19, and a public hearing is required. (Sec. 4-4-22)
- Petition for waivers or adjustments requires a public hearing, published advisement, nearby property owner notification, and posting at the premises prior to hearing. (Sec. 4-4-22(f)-(g))
- If a sign is subject to other governmental jurisdiction (e.g., Historic District Commission, MDOT, Public Works), associated approvals must be submitted as part of sign application; any more restrictive conditions supersede city requirements. (Sec. 4-4-15, 4-4-162)
- Signs in certain districts (Planned Development, Casinos, Traditional Main Street Overlay, etc.) may be subject to Special District Review, additional procedural review, or design standards per zoning code; these requirements may override general sign standards. (Sec. 4-4-20(b))
- Notwithstanding Subsections 4-4-17(a)-(d), portable temporary signs erected/displayed per 4-4-183(a)(3), and window signage totaling less than ten square feet, are not subject to sign permit or license requirements. (Sec. 4-4-17(e))
Source: municode municipal code