Deck Permit in St. Lucie County, Florida
Permit required
Yes, a permit is required
Before building a new deck, or replacing decking valued at $1,000 or more, in unincorporated St. Lucie County
By Mario Bailey, verified against official sources
Quick answer
Building a new wood deck in unincorporated St. Lucie County requires a county building permit. The county exempts only minor replacement of the walking-surface decking on an existing deck, for one and two family dwellings, when the value of that work is under $1,000. Any new deck, structural work, or higher-value decking replacement needs a permit. This applies to unincorporated areas only; Port St. Lucie and Fort Pierce handle deck permits through their own building departments.
Typical threshold: Minor replacement of existing decking (walking surface only) under $1,000 in value, for 1 and 2 family dwellings, does not require a permit; new deck construction, structural work, or higher-value decking replacement requires a permit.
Who is pulling this permit?
Apply yourself
Hire it out
Before you sign, ask the contractor:
- Who pulls the permit, you or me, and is the permit fee included in the bid?
- Which inspections will this job need, and who meets the inspector on site?
- Is your contractor license active in this locality, and under which business name?
When a permit is usually needed
Before building a new deck, or replacing decking valued at $1,000 or more, in unincorporated St. Lucie County
What your deck permit must meet in Florida
In Florida a residential deck is built to the Florida Building Code, Residential (8th Edition, 2023), which is based on the 2021 IRC with statewide wind amendments. The governing concern is wind rather than frost: the deck and its attachment to the house must be designed for the local ultimate design wind speed, and it must meet the guard, stair, and connection requirements.
- Guards are required on any deck walking surface more than 30 inches above the grade or floor below, with a minimum guard height of 36 inches (FBC-R R312).
- Guard infill and balusters must be spaced so a 4-inch sphere cannot pass through; on the open side of stairs a 4 3/8 inch sphere limit applies (FBC-R R312).
- The deck must be constructed for the local ultimate design wind speed (Vult) taken from Figure R301.2(4), not a fixed minimum (FBC-R R301.2.1).
- Decks must be positively anchored to the primary structure for both vertical and lateral loads; the prescriptive lateral connection uses hold-down tension devices at not less than 2 locations within 24 inches of each end, each rated at least 1,500 lb, and joists framed to a ledger require approved joist hangers (FBC-R R507.8).
- Stairs when present allow a maximum riser height of 7 3/4 inches, a minimum tread depth of 10 inches, and a minimum stair width of 36 inches (FBC-R R311.7).
- Stair handrails are required on any flight with 4 or more risers, mounted 34 to 38 inches above the tread nosing (FBC-R R311.7).
- There is no frost-depth footing requirement in Florida; deck footings and piers are governed by wind uplift and lateral connection detailing. In the High-Velocity Hurricane Zone (Miami-Dade and Broward counties), additional wind-design and product-approval requirements apply.
Based on Florida Building Code, Residential (8th Edition, 2023): R312 guards, R311.7 stairs, R301.2.1 wind speed, R507.8 deck attachment. Read the code. Local amendments can be stricter; confirm the current requirement with your office before you build.
What a deck permit costs in St. Lucie County
How St. Lucie County compares in Florida
| Jurisdiction | Permit needed? | Threshold |
|---|---|---|
| Alachua County | Permit required | Not specified |
| Broward County | Permit required | Not specified |
| Charlotte County | Permit required | Not specified |
| Clay County | Permit required | an elevated deck, as distinct from other deck work |
| Hernando County | Permit required | Not specified |
| Hillsborough County | Permit required | Not specified |
| St. Lucie Countythis page | Permit required | Minor replacement of existing decking (walking surface only) under $1,000 in value, for 1 and 2 family dwellings, does not require a permit; new deck construction, structural work, or higher-value decking replacement requires a permit. |
How to apply in St. Lucie County
A residential deck permit application is a set of construction documents that show what will be built and prove it meets the IRC deck provisions. In practice that means a scaled site plan locating the deck and its setbacks, plus deck plans and structural details covering the footings, posts, beams, joists, ledger, guards, and stairs.
What most deck permit applications include:
- A permit application identifying the work, the deck's size (square footage), and whether electrical work such as lights or receptacles is included, submitted for plan review before construction begins (IRC R106).
- A scaled site plan (for example 1/4 inch to 1 foot) showing the new deck's location relative to the house, its overall length and width, and dimensioned distances from the deck to all property lines and other structures so required setbacks can be verified (IRC R106.1.1).
- A deck plan drawn to scale showing overall dimensions and the framing layout: joist size, spacing, span, and species; beam size and span; post size and height; and footing or pier size and depth (IRC R507.4 posts, R507.5 beams, R507.6 joists, R507.3 footings).
- A section or side elevation with connection details showing the ledger attachment to the house band joist with flashing, the fastener or bolt schedule, joist hangers, post-to-beam and post-to-footing connections, and the required lateral load connection (IRC R507.9 ledger connection, R507.9.2 lateral connection, R507.2.4 flashing).
- Footing sizing derived from tributary area, the soil bearing value, and design loads per IRC Table R507.3.1, with footings shown bearing on undisturbed soil at the frost depth required by the jurisdiction (IRC R507.3).
- Details for the guards required where the walking surface is more than 30 inches above grade, and for the stairs and handrails, showing guard height and opening limits, stair riser and tread dimensions, and handrail location (IRC R312 guards, R311.7 stairs and handrails).
- For designs that fall outside the prescriptive R507 tables (for example multi-story or stacked decks, or a ledger attached to a cantilever), engineered and stamped structural plans are submitted in place of the prescriptive details (IRC R507.1 and R301).
General submittal guidance from IRC R106.1.1 (construction documents) and IRC R507 (exterior decks), 2021 IRC. Source. St. Lucie County Building & Permitting Division (Planning and Development Services) sets the exact checklist for St. Lucie County.
Where to apply in St. Lucie County:
St. Lucie County Building & Permitting Division (Planning and Development Services)
- 2300 Virginia Avenue, Fort Pierce, FL 34982
- Phone: (772) 462-1553
Inspections and closing out your permit
Deck work is inspected in sequence as it is built: the footings before concrete is placed, the framing before the decking boards go down, and a final inspection once the deck is complete. Each stage checks the items that would be hidden or unsafe if missed.
- Footing or pier inspection: after the holes are dug and any forms or reinforcing are set but before concrete is placed, the inspector checks footing depth and diameter, a flat undisturbed bearing surface, and that the holes are free of water (IRC R109.1.1 foundation inspection; R507.3 footings).
- Framing inspection: after the deck is framed but before the decking conceals it, the inspector verifies the ledger attachment and its flashing, the fastener and bolt schedule, joist hangers and metal connectors, post-to-beam and post-to-footing connections, and the lateral load connection; call it before decking is installed (IRC R109.1.4 frame inspection; R507.9 ledger and flashing).
- Final inspection: after the deck is complete and before it is used, the inspector confirms guard height and opening limits (a 4 inch sphere must not pass, 4 3/8 inch at stairs), stair riser and tread dimensions, handrail height and graspability where there are 4 or more risers, stair landings, and required stair lighting (IRC R109.1.6 final inspection; R312 guards, R311.7 stairs and handrails).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the St. Lucie County permit portal or by phone at (772) 462-1553.
Inspection sequence from IRC R109 (inspections: R109.1.1 footing before concrete, R109.1.4 frame, R109.1.6 final), 2021 IRC. Source. An open permit left un-inspected can surface later in a title search or home sale.
Your Deck Permit checklist for St. Lucie County
- Confirm the requirement. Yes, a permit is required. Typical threshold: Minor replacement of existing decking (walking surface only) under $1,000 in value, for 1 and 2 family dwellings, does not require a permit; new deck construction, structural work, or higher-value decking replacement requires a permit. Usually needed: Before building a new deck, or replacing decking valued at $1,000 or more, in unincorporated St. Lucie County.
- Apply. A residential deck permit application is a set of construction documents that show what will be built and prove it meets the IRC deck provisions. In practice that means a scaled site plan locating the deck and its setbacks, plus deck plans and structural details covering the footings, posts, beams, joists, ledger, guards, and stairs. Start at the St. Lucie County permit portal.
- Keep the office details handy. St. Lucie County Building & Permitting Division (Planning and Development Services). Phone: (772) 462-1553. Address: 2300 Virginia Avenue, Fort Pierce, FL 34982.
- Plan for inspections. Deck work is inspected in sequence as it is built: the footings before concrete is placed, the framing before the decking boards go down, and a final inspection once the deck is complete. Each stage checks the items that would be hidden or unsafe if missed.
Compiled from the official sources on this page. Last checked .
Frequently asked questions
- Do you need a deck permit in St. Lucie County?
- Building a new wood deck in unincorporated St. Lucie County requires a county building permit. The county exempts only minor replacement of the walking-surface decking on an existing deck, for one and two family dwellings, when the value of that work is under $1,000. Any new deck, structural work, or higher-value decking replacement needs a permit. This applies to unincorporated areas only; Port St. Lucie and Fort Pierce handle deck permits through their own building departments. Always confirm with the St. Lucie County Building & Permitting Division (Planning and Development Services) before starting.
- How much does a deck permit cost in St. Lucie County?
- Fees are set by St. Lucie County and are not published here. Contact the office for current amounts.
- How long does a deck permit take in St. Lucie County?
- Minor permits are usually approved within 24 to 48 hours; standard building permits are targeted for issuance within 14 workdays when all required documents are provided. Times can vary by workload and project scope, so confirm with the office.
- Where do you apply for a deck permit in St. Lucie County?
- You can apply through the St. Lucie County permit portal or contact the St. Lucie County Building & Permitting Division (Planning and Development Services) directly. The links are listed on this page.
- Can a homeowner pull a deck permit themselves in St. Lucie County?
- Under Florida law (F.S. 489.103(7)(a)-(c)): Florida lets you pull your own permit as an owner-builder under section 489.103(7), Florida Statutes, which exempts property owners from the contractor licensing law when they act as their own contractor and provide direct, onsite supervision of all work not performed by licensed contractors. The exemption covers building or improving a one-family or two-family residence or a farm outbuilding for your own occupancy or use, and commercial buildings only up to a $75,000 cost, and the property may not be built or improved for sale or lease. If you sell or lease the property within 1 year after completing the work, the law presumes it was built for sale or lease, which violates the exemption. To qualify, you must personally appear and sign the building permit application and sign a state-prescribed disclosure statement acknowledging that you are the party legally and financially responsible for the construction, that you must provide direct, onsite supervision, and that unlicensed people you use must be your own employees, bringing federal tax withholding and workers' compensation obligations. You may not hire an unlicensed person to act as your contractor and may not delegate supervision to anyone who is not licensed for the work being done; if these requirements are violated, the local permitting agency shall withhold final approval, revoke the permit, or pursue unlicensed-activity remedies. A separate narrow branch of the exemption also lets an owner take over and complete a permit on a one-family or two-family residence when the original contractor substantially completed the project. Confirm how St. Lucie County applies this before you apply.
From the Library
What else needs a permit in St. Lucie County
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
| Project | Permit needed? | Threshold |
|---|---|---|
| Electrical Permit | Permit required | Not specified |
| Fence Permit | Permit required | Minor repair or exact replacement of an existing permitted fence of up to 2 panels, excluding pool barriers, does not require a permit; installing a new fence, larger repairs, or any pool barrier fence requires a permit. |
| HVAC Permit | Permit required | Not specified |
| Patio Permit | It depends | Sand-set pavers that are not a pool or spa deck and are not within five feet of a pool do not require a permit, for 1 and 2 family dwellings; pavers used as a pool deck, pavers within five feet of a pool, or other patio construction requires a permit. |
| Plumbing Permit | Permit required | Not specified |
| Pool Permit | It depends | Portable or manufactured pools or spas less than 24 inches deep do not require a permit; in-ground pools, permanent spas, and portable or manufactured pools or spas 24 inches deep or more require a permit. |
| Roof Replacement Permit | It depends | A permit is required for any reroof work exceeding 25% of the existing roof area within a 12-month period. |
| Shed Permit | Permit required | Not specified |
| Solar Permit | Permit required | Not specified |
Deck Permit in other Florida localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not St. Lucie County documents; the office above sets the local rules.
- IRC R106.1.1 (construction documents) and IRC R507 (exterior decks), 2021 IRC
- IRC R109 (inspections: R109.1.1 footing before concrete, R109.1.4 frame, R109.1.6 final), 2021 IRC
- Florida Building Code, Residential (8th Edition, 2023): R312 guards, R311.7 stairs, R301.2.1 wind speed, R507.8 deck attachment
Verified by a person against the sources above on , not confirmed with St. Lucie County Building & Permitting Division (Planning and Development Services). Rules change; confirm before you build. How we verify.
Last checked: Report an error on this page
Permit office
St. Lucie County Building & Permitting Division (Planning and Development Services)
(772) 462-1553Permit portalFlorida rule changes
- Broward County, FL updates building permit fee schedule (Ordinance 2025-038)
Ord. 2025-038 ·
- Florida waives permits for small single-family jobs under $7,500 (HB 803)
ch. 2026-63 (HB 803), F.S. 553.79 ·
Compare
Deck Permit across Florida