In unincorporated Miami-Dade, some yard items that the Florida Building Code exempts still need a Zoning Improvement Permit, including chain-link and picket fences, pergolas, awnings, and decorative pools.
City guide
A shed kit, a wood deck one step off the grass, and a chain-link fence are three different paperwork paths in Miami-Dade, and none of them is the Texas pattern. This guide covers Miami-Dade building permit rules for sheds, fences, and decks in unincorporated county, taken from the county’s permit-exemption list, the shed page, and the zoning-improvement permit list. It does not cover the City of Miami, Miami Beach, Coral Gables, or any other city inside the county. Those cities issue their own permits. Exempt work still has to meet zoning and code. Confirm the folio and the flood zone before you buy materials. See our disclaimer.
Unincorporated Miami-Dade shed, fence, and deck rules in one table
| Project | Unincorporated county pattern | Source |
|---|---|---|
| Shed or utility storage | Building permit required. One shed, storage only, not over 400 sq ft. Prefab needs a product approval | Sheds and utility storage page |
| Fence | Non-wind-resistant chain-link, picket, or iron: zoning permit, not a building permit. Concrete columns, wind-resistant fences, and pool barriers: building permit | Zoning Improvement Permit list and House Bill 803 notice |
| Deck | Wood decks 18 inches or less above ground: no permit on the exemption list. Covered or aluminum terrace: building permit | Permit exemptions page; shed and terrace page |
| Local extra | City vs county folio, wind product approval, and flood zone. House Bill 803 does not exempt sheds or wind-resistant fences | How to apply; exemption notice |
Dallas will exempt a utility building under 200 square feet with no utilities. Miami-Dade does not. A shed here is a permit, and the cap on the county’s shed page is 400 square feet, not an exemption. Compare with the Dallas guide.
Folio 30 or a city: who issues the Miami-Dade permit
This page is for unincorporated Miami-Dade, the folios the county says start with 30. If the house sits inside a city, that city’s building department is the counter, even though the mailing address says Miami. The county tells applicants to check municipal codes for city lots. Our permit lookup by state is the jump-off for the portal that matches the address.
Miami-Dade sheds: a permit, one shed, 400 square feet
The county’s shed page is direct: a building permit is required to install a shed, utility storage, or aluminum terrace. On a residential lot the structure has to be a single-story, non-habitable building, accessory to a single-family house, townhouse, or duplex, used for storage only. Only one, and not over 400 square feet.
A pre-manufactured shed needs the current Notice of Acceptance, the county’s product-approval number for high-wind use. Florida Building Commission product approvals are also accepted. Owner-builders have an extra form. House Bill 803, effective July 1, 2026, can exempt some work under $7,500, and the county’s own notice says sheds are structural work that still needs a permit. Read the shed permit guide.
Miami-Dade fences: zoning permit or building permit
Miami-Dade does not publish one height that skips all paperwork. The split is wind and zoning. The Zoning Improvement Permit list includes a residential chain-link fence, and residential picket, iron, and other non-wind-resistant fences. Those skip the building permit and still need the zoning permit. Fences with concrete columns are called out as a building permit, process BLDG 18. The House Bill 803 notice puts wind-resistant fences on the always-permit list, with windows, doors, and sheds.
A chain-link fence that is there to meet a swimming-pool barrier is not the exemption. The exemption list carves pool-barrier fences out of the chain-link line. Height, corner visibility, and the HOA are separate from this building-versus-zoning split. Read fence permits and HOA approval vs a city permit.
Miami-Dade decks and the 18-inch line
The exemption list says wood decks 18 inches or less above ground do not require a permit. That is lower than the 30-inch line Dallas and the model code use. The sentence says wood decks. It does not say every platform, and it does not say a roofed deck.
An aluminum terrace or patio cover is on the shed page as work that needs a building permit, with its own product approval. A pergola or trellis shows up on the zoning-permit list, which is a third path. Match the thing you are building to the county’s word for it before you assume the 18-inch line covers it. Read the deck permit guide and pergola and patio cover permits.
Wind approvals, flood zones, and House Bill 803
Unincorporated Miami-Dade adds three checks, not one.
Wind comes first. Prefabricated sheds and aluminum covers need a current product approval because the county is a high-wind jurisdiction. A national kit that is legal in Dallas can still be the wrong product here.
Flood is second. The county says the House Bill 803 exemption does not apply to a property partly or entirely in a flood hazard area. Check the address on the county’s FEMA flood map before you treat a small job as exempt.
The dollar cap is third, and it is narrower than the headline. Beginning July 1, 2026, some work under $7,500 on a single-family house, duplex, or qualifying townhouse can skip a building permit. The county’s notice says electrical, plumbing, mechanical, gas, and structural work still need a permit. Structural, in that notice, includes windows, doors, wind-resistant fences, and sheds. Multifamily units do not qualify. The county also says a project cannot be split into phases to stay under the cap.
How Miami-Dade prices and schedules the permit
Miami-Dade has no flat fee to quote here. The county calculates it from the permit category, and other departments can add their own charges. Start at the building fee schedule. The Board of County Commissioners adopted a revised schedule effective October 1, 2025, the first change the county described in more than 17 years, so an old blog number is the wrong number.
The county does not promise a single review time for a shed or fence. Use our how long a permit takes piece for the usual sequence, then read the status in EPS. Ask whether the job is a building permit, a zoning improvement permit, or both.
Doing it yourself in unincorporated Miami-Dade: the owner-builder validation
Florida lets an owner pull a permit and act as their own contractor, and Miami-Dade adds a checkpoint before that permit is issued. On the county’s owner-builder permits page, you submit the application and plans first. Once they are approved, you schedule an owner-builder validation with the Small Business and Homeowner Permitting Assistance Team, in person or virtually, and confirm that you understand the obligations in the disclosure statement. Bring a valid photo ID and proof that the house is your primary residence. The permit is issued only after you pass. If you do not, a licensed contractor has to apply for the permit and do the work.
The property has to be in a person’s name, not a company or a trust. On residential property, the exemption covers a one- or two-family home or a farm outbuilding for your own use. It cannot be built or improved for sale or lease unless a licensed contractor listed on the permit did the work. The county also warns that selling or leasing within 24 months of permit issuance creates a legal presumption that you built it for sale.
Read the Owner-Builder Disclosure Statement before you apply. If you may sell within two years, it is usually simpler to put a contractor on the permit for a shed slab or a wind-rated fence. Our owner-builder permits guide covers the general risks.
The Miami-Dade ZIP: list and submittal
The ZIP covers work exempt from a building permit that still has to meet county zoning code (Miami-Dade Zoning Improvement Permit (ZIP)). Residential items on the list:
- Chain-link fences, and picket, iron, or other non-wind-resistant fences (concrete columns move the fence to a BLDG 18 building permit)
- Awnings, canopies, fabric-covered frameworks, trellises, and pergolas (a reduced-setback affidavit for sheds and pergolas may be submitted)
- Decorative pools, ponds, and garden fountains
- Paving, drainage of existing facilities, landscaping, and tennis or basketball courts
- Portable mini-storage units
What to submit:
- A completed ZIP application (the green form), plus the owner-builder form if applicable
- Your own detail drawings, drawn to scale; they do not have to be certified by an architect or engineer
- A land survey showing the improvement on the current layout of the property
Staff consultations are booked through MeetQ. Source: Miami-Dade Zoning Improvement Permit (ZIP).
For how these limits compare across cities, see our permit-free limits by city table.
Miami-Dade shed, fence, and deck questions
Do I need a permit for a shed in Miami-Dade?
In unincorporated county, yes. The shed page requires a building permit. The residential limits on that page are one shed, storage only, single story, not over 400 square feet, with a product approval if it is prefabricated. House Bill 803 does not take sheds off the permit list.
How tall can a fence be in Miami-Dade without a permit?
There is no single published height that clears every fence. Non-wind-resistant chain-link, picket, and iron fences can skip the building permit and still need a zoning permit. Concrete columns, wind-resistant fences, and pool-barrier fences need a building permit.
Do I need a permit for a deck in Miami-Dade?
The exemption list says wood decks 18 inches or less above ground do not require a permit. A covered deck, aluminum terrace, or patio cover is a building-permit project on the county’s terrace page.
Do I need an engineer for a Miami-Dade ZIP drawing?
No. The county says ZIP detail drawings must be to scale but do not have to be certified by an architect or engineer.
Does a pergola need a permit in unincorporated Miami-Dade?
It needs a Zoning Improvement Permit. Residential trellises and pergolas are on the ZIP list.
Before you build in unincorporated Miami-Dade
Unincorporated Miami-Dade is not a 200-square-foot shed county. A shed needs a building permit, capped at one and 400 square feet on the county’s residential rules. A low wood deck, 18 inches or under, is the exemption. A ordinary chain-link or picket fence is usually a zoning permit, until wind resistance, concrete columns, or a pool barrier push it into a building permit. House Bill 803 did not erase those lines. Before you start, confirm the folio is unincorporated, check the flood zone, and run the 10-minute AHJ checklist.
Next steps for a Miami-Dade project: read shed permit requirements by size to see why the county’s rule is stricter than the national pattern, fence height limits and corner lots for placement, and pool and spa barrier permits if the fence doubles as a pool barrier. The Tampa guide covers a Florida city with a 120-square-foot shed exemption.
- Miami-Dade permit exemptions, including wood decks and House Bill 803
- Sheds, utility storage, and aluminum terraces
- Zoning Improvement Permit list, fences and pergolas
- Building and permits homepage
- Building fee schedule
- Miami-Dade County: Owner-Builder Permits
- Miami-Dade County: Owner-Builder Disclosure Statement (PDF)
We are not a government agency and this is not legal advice. Thresholds here are the county’s published patterns for unincorporated Miami-Dade as of the verified date, not a ruling on your lot or on a city inside the county. How we research · Disclaimer · Report an error.
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