Do I need a adu permit in St. Petersburg?

Yes. St. Petersburg requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.

How long does adu permit approval take in St. Petersburg?

Processing times in St. Petersburg vary depending on project complexity and current review volume. The process involves 7 steps. Contact St. Petersburg Development Services for current timelines.

What documents are required for a adu permit in St. Petersburg?

St. Petersburg requires 6 documents including Building Permit Application, Architectural Drawings, Site Plan, Zoning Verification Letter, and others. See the full list above for details.

What happens if I build without a adu permit in St. Petersburg?

Building without a permit in St. Petersburg can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.

Can PermitMagic help prepare my adu permit submission in St. Petersburg?

Yes. PermitMagic generates a submission-ready packet tailored to St. Petersburg's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.

How much does a adu permit cost in St. Petersburg?

ADU permit fees in St. Petersburg typically range from $3,600 to $11,880, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with St. Petersburg.

ADU Permit Online Portal Guide in St. Petersburg, Florida

Everything you need to apply for a adu permit in St. Petersburg, Florida — documents, fees, steps, and a downloadable submission packet.

Build My Permit Packet View Requirements

Key Facts

Permit required: Yes
Submission method: Online
Typical fee range: $3,600 – $11,880
Review time: Varies by jurisdiction
Inspections: 6 inspections required

VerifiedLast verified: Feb 15, 20262 verified sources

St. Petersburg Planning and Development Services

Verified

7-step online submission process — account registration required[1][2]

Open Portal

Step 1: Zoning Eligibility Verification

[3][4]

Obtain zoning verification letter from City of St. Petersburg Planning confirming property zoning permits ADU development

What You Need

Zoning Verification Letter

Portal steps may change without notice. Always confirm the current process at St. Petersburg's online portal.

Generate your permit packet

Get a personalized ADU permit packet for St. Petersburg, Florida — tailored to your project details.

Required forms: Building Permit Application, and more
Pre-filled templates: Permit Cover Sheet
Fee breakdown: $1,200–$7,200 estimated total
Step-by-step St. Petersburg Planning and Development Services portal submission guide
Inspection prep checklist (6 items)
Personalized for your specific project details

Build My Permit Packet

Free to preview · Pro to download

Required Documents

St. Petersburg requires the following documents for this permit application.

Building Permit Application

Completed City of St. Petersburg building permit application with ADU project description, property owner information, and construction valuation

Architectural Drawings

Complete architectural plans signed by a licensed Florida architect, including floor plans, elevations, building sections, and construction details

Site Plan

Detailed site plan showing property boundaries, lot dimensions, building footprint, setbacks, parking layout, driveways, and utilities

Zoning Verification Letter

Zoning verification letter from City of St. Petersburg Planning confirming ADU is permitted in property zoning district

Structural Engineering Plans

Structural engineering plans and calculations signed by a licensed Florida professional engineer for foundation and structural systems

Mechanical and Utility Plans

Plans showing water supply, sewer, electrical, and natural gas connections with separate metering specifications for ADU utilities

Fees and Timeline

Fee Breakdown

Fee	Range	Confidence
ADU Permit Fee	$2,400 – $7,200	Verified
Plan Review Fee	$1,200 – $4,680	Verified

Inspections Required

Foundation and footing inspection per Florida Building Code

Foundation and footing inspection per Florida Building Code requirements

Framing and structural member inspection for load capacity

Electrical rough-in and separate service panel inspection

Plumbing rough-in and fixture installation inspection

Mechanical systems and HVAC installation inspection

Final inspection and Certificate of Occupancy issuance

Authority Sources

Data on this page is sourced from official records published by the permitting authority. Always verify requirements directly before submitting.

St. Petersburg Planning and Development Services

Last verified: February 15, 2026

2 sources referenced

Official page

St. Petersburg Code Chapter 24 (Zoning)

Verified February 15, 2026

Official page

City of St. Petersburg Planning and Development Services

Verified February 15, 2026

Portal guide

City of St. Petersburg Permits and Licenses Portal

Verified February 15, 2026

Fee schedule

St. Petersburg Building Permit and Development Fee Schedule

Verified February 15, 2026

Frequently Asked Questions

Do I need a adu permit in St. Petersburg?: Yes. St. Petersburg requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.
How long does adu permit approval take in St. Petersburg?: Processing times in St. Petersburg vary depending on project complexity and current review volume. The process involves 7 steps. Contact St. Petersburg Development Services for current timelines.
What documents are required for a adu permit in St. Petersburg?: St. Petersburg requires 6 documents including Building Permit Application, Architectural Drawings, Site Plan, Zoning Verification Letter, and others. See the full list above for details.
What happens if I build without a adu permit in St. Petersburg?: Building without a permit in St. Petersburg can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.
Can PermitMagic help prepare my adu permit submission in St. Petersburg?: Yes. PermitMagic generates a submission-ready packet tailored to St. Petersburg's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.
How much does a adu permit cost in St. Petersburg?: ADU permit fees in St. Petersburg typically range from $3,600 to $11,880, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with St. Petersburg.