Sign Regulations in Martin County, FL (2026)
2 rules for unincorporated Martin County, Florida.
Verified from official government sources
Political Signs
Martin County lets political and other non-commercial signs go up on private property without a sign permit, but LDR Sec. 4.705.B requires written permission from the Building Director before any non-commercial temporary sign, including a political sign, can be placed on public right-of-way or public property.
Martin County Political Sign Right-of-Way Rule
Light RestrictionsMartin County LDR Sec. 4.705.B (Article 4, Division 16)
4.705.B.No temporary sign, whether for commercial or non-commercial purpose, shall be placed on any public right-of-way or public property without the written permission of the Building Director. Nothing in this section shall limit the Building Director from removing and disposing snipe signs or any other unlawful sign as provided by this division or as otherwise provided by law.
Window Signs
Martin County caps window signage at 20 percent of a tenant space's total glass area. LDR Sec. 4.703.K applies the limit to plastic signs and signs painted directly on the glass, treats interior-mounted signs visible from outside as window signs too, and bars any window sign from substantially blocking the view into the building.
Martin County Window Sign 20% Limit
Some RestrictionsMartin County LDR Sec. 4.703.K (Article 4, Division 16)
4.703.K.Window signs.1.Plastic signs, or signs painted on the glass may be placed upon windows when limited to 20 percent of the aggregate glass area, per tenant space or per main use.2.Signs displayed from the inside of the glass but which are visible from the outside shall be considered as window signs.3.Window signs shall not be placed where they substantially obscure the view of a person to...
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