Providence, RI Environmental Rules: Flood Elevation Requirements (2026)
Key Facts
- Governing article
- Code §§ 5-120 to 5-125
- AO zone minimum
- 2 feet above adjacent grade
- Permit required
- For all development in flood zone
- Enforcing agency
- Dept. of Planning and Development
- Penalty authority
- R.I.G.L. § 23-27.3-122.3
Summary
Providence requires a building permit for any construction inside a FEMA-mapped special flood hazard area and sets a concrete elevation floor for AO flood zones: at least two feet above the highest adjacent grade when the FIRM lists no depth number.
Within zones AO on the FIRM, new and substantially improved residential structures shall have the top of the lowest floor at least as high as the FIRM's depth number above the highest adjacent grade and non-residential structures shall be elevated or flood-proofed above the highest adjacent grade to at least as high as the depth number on the FIRM. On FIRMs without a depth number for the AO zone, structures shall be elevated or flood-proofed to at least two (2) feet above the highest adjacent grade.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 7).
Full Breakdown
Code § 5-121 requires a building permit for all construction or development inside a mapped special flood hazard area (FEMA Zones A, AE, AH, AO, A99, V, or VE), administered by the department of planning and development and enforced by the building official. Section 5-123(b)(2) sets a numeric floor: in AO zones without a FIRM depth number, new and substantially improved structures must be elevated or flood-proofed to at least two feet above the highest adjacent grade. Elevation requirements for AE and other numbered zones run through the Rhode Island State Building Code, which the article expressly requires developers to follow, and § 5-125 makes this article supersede any conflicting provision elsewhere in the code.
Violations & Fines
Building without a permit in a flood hazard area, or below the required elevation, is presumed a violation under § 5-124's definition, subject to penalties set by R.I.G.L. § 23-27.3-122.3.
Frequently Asked Questions
Do I need a permit to build in a Providence flood zone?
How high must a structure be elevated in an AO flood zone?
Sources & Official References
Other rules in Providence
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Flood Elevation Requirements in Nearby Cities
How other cities in this county handle flood elevation requirements.