What ADU can you build in your Trinity 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
Trinity ADU rules at a glance
- Max ADU size
Up to 1,200 sq ft, and smaller than your main home - 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 Trinity, Florida
We've researched Trinity'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.
- Governed by Pasco County — ADU by right, up to 1,200 sq ft, smaller than the home
- No owner-occupancy; long-term rental allowed; short-term/vacation restricted
- Trinity is master-planned — HOA/MPUD covenants may independently bar an ADU
Last verified: 2026-07-15
Backyard ADUs like this are being built across Trinity — here's how to do it right.
What Trinity's zoning may allow for an ADU
Trinity is unincorporated, so Pasco County's Land Development Code governs. Pasco permits an ADU by right in single-family districts (LDC §530.24, Ord. 25-22, eff. April 9, 2025), capped at 1,200 sq ft and smaller than the main house. No owner-occupancy; long-term rental allowed; short-term/vacation rental restricted. Trinity is heavily deed-restricted, so HOA/MPUD covenants may independently bar an ADU.
Zoning allowance
An ADU is permitted by right in districts that allow single-family dwellings and single-family portions of MPUDs (LDC §530.24.A); one per lot. A special exception is needed only to deviate from size/setback standards.
Size limits
The ADU 'shall not exceed 1,200 square feet of living space' and 'shall be smaller than the principal unit' (LDC §530.24.B.1.a).
Lot + setbacks
Setbacks, lot coverage, and minimum lot size for an accessory dwelling vary by zoning district. Confirm the exact figures with the jurisdiction's planning department.
Height + coverage
Height and lot-coverage limits vary by zoning district. Confirm current limits with local planning.
Parking
Parking requirements for an accessory dwelling vary by district; typically one additional space. Confirm with local planning.
Rental / occupancy
No owner-occupancy required; long-term rental allowed; short-term/vacation rental prohibited unless the LDC §402.5.B process is followed (§530.24.B.3.a). Individual subdivision covenants may prohibit an ADU (§530.24.B) — important in master-planned Trinity.
Permit process
An accessory dwelling is permitted through the jurisdiction's standard zoning-review and building-permit process. Contact the local planning or building department for current requirements.
Building limits and rental rules, side by side
These figures are based on the best available data for Trinity 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:1,200 sq ft
- Detached Allowed?Check with city
Rental Rules
No Owner-Occupancy Requirement: Both units can be rented to tenants simultaneously.
Short-Term Rentals Prohibited: Minimum 30-day stay required in Trinity.
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 Trinity permit process step by step — so you know exactly what's coming, and what to prepare.
Step 1: Pre-Application Zoning Check
- Where:
- Trinity 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:
- Trinity 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:
- Trinity 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:
- Trinity 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
Trinity neighborhoods where ADU permits are being filed — is your street next?
Trinity ADU — Frequently Asked Questions
These are the questions we hear most often from Trinity homeowners. If yours isn't here, our ADU Zoning Experts can answer it directly.
Can I build an ADU in Trinity, Florida?
An ADU is permitted by right in districts that allow single-family dwellings and single-family portions of MPUDs (LDC §530.24.A); one per lot. A special exception is needed only to deviate from size/setback standards.
What is the maximum ADU size in Trinity?
The ADU 'shall not exceed 1,200 square feet of living space' and 'shall be smaller than the principal unit' (LDC §530.24.B.1.a).
Do I need to be an owner-occupant to build an ADU in Trinity?
Trinity does not require owner-occupancy. Both the primary home and ADU can be rented to tenants simultaneously.
Can I use my Trinity ADU as an Airbnb?
Short-term rentals under 30 days are prohibited in Trinity. The minimum rental period is 30 days.
How do I get an ADU permit in Trinity?
An accessory dwelling is permitted through the jurisdiction's standard zoning-review and building-permit process. Contact the local planning or building department for current requirements.
Nearby Cities — ADU Rules
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More Pasco County ADU Guides
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.