What ADU can you build in your Fort Pierce backyard?
Instant zoning report — see exactly what your zoning allows: permitted ADU types, size limits, setbacks, and lot requirements for your specific property.
The quick answer
Fort Pierce ADU rules at a glance
- Owner-occupancy
Not required — you can rent both units - Short-term rentals
Restricted — long-term rentals only in most zones - Where it's allowed
Eligibility varies by zoning district — check your address to confirm yours
ADU Rules in Fort Pierce, Florida
We've researched Fort Pierce's ADU rules so you don't have to. Here's what matters most — the facts that determine whether your project is possible, and how much it will cost.
- General residential districts allow only a non-rental, no-kitchen guest house (large lots)
- A true ADU exists only in the small Edgartown Settlement (ES) overlay (LDR §125-197)
- Outside the ES overlay, a rentable backyard ADU is not permitted
Last verified: 2026-07-15
Backyard ADUs like this are being built across Fort Pierce — here's how to do it right.
What Fort Pierce's zoning may allow for an ADU
Fort Pierce permits only a non-rental guest house (no kitchen) in its general residential districts (large lots), where a true ADU is not allowed. A genuine accessory dwelling exists only in the small Edgartown Settlement (ES) historic overlay, where it must be subordinate to the main home and owner-occupancy is not required.
Zoning allowance
In Fort Pierce's general residential districts (R-1 through R-5) only a no-kitchen guest house is allowed, and only on large lots (30,000 sq ft in R-1/2/3). A true accessory dwelling unit is permitted only within the Edgartown Settlement (ES) historic overlay (LDR §125-197).
Size limits
In the ES overlay an accessory dwelling has no fixed square-foot cap but must be 'subordinate in size to the principal' dwelling (LDR §125-197). General-district guest houses have no independent kitchen.
Lot + setbacks
Setback requirements vary by zoning district in Fort Pierce. Confirm exact setbacks with St Lucie County planning.
Height + coverage
Height and lot coverage limits vary by zoning district. Check Fort Pierce zoning code.
Parking
Parking requirements for ADUs in Fort Pierce vary by zoning district. Verify with local planning.
Rental / occupancy
In the general districts the only accessory unit is a non-rental guest house (no kitchen). In the ES overlay the accessory dwelling is a full unit and owner-occupancy is not required. Outside ES, treat a rentable ADU as not permitted.
Permit process
ADU permits in Fort Pierce follow standard Florida residential building permit workflow. Contact St Lucie County building department for current requirements.
Building limits and rental rules, side by side
These figures are based on the best available data for Fort Pierce and should be confirmed with the city's planning department before you commit to a design or a rental strategy — local ordinances change and vary by parcel.
Building Limits
- Max Size:See requirements above
- Detached Allowed?Check with city
Rental Rules
Short-Term Rentals Prohibited: Minimum 30-day stay required in Fort Pierce.
Here's exactly what you'll pay — and how to avoid the fees that catch most homeowners off guard
Most homeowners spend 3–4 weeks piecing this together on their own. We've mapped the full Fort Pierce permit process step by step — so you know exactly what's coming, and what to prepare.
Step 1: Pre-Application Zoning Check
- Where:
- Fort Pierce Planning Department
- What to bring:
- Property address and parcel ID, preliminary site sketch, lot survey
- Timeline:
- No appointment fee — call ahead to confirm office hours
- Cost:
- No fee for initial inquiry
Step 2: Submit Permit Application
- Where:
- Fort Pierce Planning Department — contact for portal link
- What to bring:
- Architectural plans, site plan, boundary survey, energy compliance docs
- Timeline:
- Contact planning to confirm current review timelines
- Cost:
- Contact planning for current fee schedule
Step 3: Plan Review & Revisions
- Where:
- Fort Pierce Planning Department
- What to bring:
- Responses to any correction letters; revised drawings if required
- Timeline:
- Plan for one or more review cycles — timeline varies by submission completeness
- Cost:
- No additional fee for standard resubmittal
Step 4: Construction & Inspections
- Where:
- Fort Pierce Building Department
- What to bring:
- Approved permit set must be on-site at all times during construction
- Timeline:
- Schedule inspections as each phase of work is completed
- Cost:
- Included in permit fee
Eligible Zones in Fort Pierce
ADUs may be permitted in these zoning districts, but eligibility depends on your specific parcel and the current local ordinance. Confirm your parcel and rules with Fort Pierce Planning before relying on this — most homeowners can check their zone at the county GIS portal in a few minutes.
Fort Pierce neighborhoods where ADU permits are being filed — is your street next?
Fort Pierce ADU — Frequently Asked Questions
These are the questions we hear most often from Fort Pierce homeowners. If yours isn't here, our ADU Zoning Experts can answer it directly.
Can I build an ADU in Fort Pierce, Florida?
In Fort Pierce's general residential districts (R-1 through R-5) only a no-kitchen guest house is allowed, and only on large lots (30,000 sq ft in R-1/2/3). A true accessory dwelling unit is permitted only within the Edgartown Settlement (ES) historic overlay (LDR §125-197).
What is the maximum ADU size in Fort Pierce?
In the ES overlay an accessory dwelling has no fixed square-foot cap but must be 'subordinate in size to the principal' dwelling (LDR §125-197). General-district guest houses have no independent kitchen.
Do I need to be an owner-occupant to build an ADU in Fort Pierce?
In the general districts the only accessory unit is a non-rental guest house (no kitchen). In the ES overlay the accessory dwelling is a full unit and owner-occupancy is not required. Outside ES, treat a rentable ADU as not permitted.
Can I use my Fort Pierce ADU as an Airbnb?
Short-term rentals under 30 days are prohibited in Fort Pierce. The minimum rental period is 30 days.
How do I get an ADU permit in Fort Pierce?
ADU permits in Fort Pierce follow standard Florida residential building permit workflow. Contact St Lucie County building department for current requirements.
Nearby Cities — ADU Rules
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Serving homeowners in 34946, 34947, 34949, 34950, 34981, 34982, 34983, 34984 and surrounding Fort Pierce zip codes.
This page provides general information based on current ordinances and publicly available data as of 2026-07-15. Zoning rules change — verify all requirements with your local planning department before making financial commitments.