Looking for an industrial real estate broker in St. Lucie County? Ironmark Capital Advisory represents owners, tenants, buyers and investors across the county, led by two SIOR-designated principals, from Tradition and Legacy Park to the I-95 and Turnpike corridor in Fort Pierce. The county’s industrial market has split by location and building size. Small buildings in the city of Port St. Lucie were 5.4% vacant (share of space that is empty) as of October 2026 (3Q 2026). The large buildings inland and in Fort Pierce were 12.9% to 19.6% vacant, according to Ironmark research.
The St. Lucie County Industrial Market Now
St. Lucie County holds about 28.5M SF of industrial space, and 15.1% of it is empty. Together with Martin County it forms the Treasure Coast market: 36.3M SF of industrial space, 16.3% vacant, up 4.4 percentage points in a year. Landlords are asking about $10.90 per SF per year on average, according to one third-quarter 2026 market report, and about 801K SF is being built.
Vacancy rose because tenants moved out, not just because new buildings were finished. Occupied space (space tenants moved into, minus space they moved out of) fell 1.29M SF across the Treasure Coast over the past 12 months. About 1.1M SF of that was emptied in October 2026, just after the quarter closed. Fort Pierce alone was down 1.07M SF. The coast held: in the coastal towns (Martin County’s coast, the city of Port St. Lucie and coastal St. Lucie) vacancy is 4.7%, and occupied space rose 104,000 SF. The market also grew fast: industrial space grew about 30% in five years (8.9M SF), including a record 5.6M SF finished in 2023. Asking rents across all buildings rose 2.6% in a year, down from 4.9% in 2025. Our full Port St. Lucie industrial market report covers the quarter in detail.
Ironmark research, all industrial buildings, data as of October 2026 (3Q 2026). Vacancy is the share of space that is empty. Asking rent is what landlords are asking, per square foot per year; the market figure ($10.90) is from one third-quarter 2026 market report. “Asking rent vs market average” compares each area’s asking rent with the average across all buildings in the market, which is measured differently and runs higher than $10.90, so area rents are not given in dollars. Occupied space is space tenants moved into minus space they moved out of. Area “being built” figures count every project, so they add up to more than the market’s 801K SF.
Areas and Parks
| Area | All industrial space | Average building | Vacancy | Occupied space, past 12 months | Asking rent vs market average | Asking rent change in a year | Being built |
|---|---|---|---|---|---|---|---|
| Port St. Lucie (city) | 3.6M SF | 11,100 SF | 5.4% | down 19,000 SF | +25% | +1.4% | 13K SF |
| St. Lucie Inland (Tradition, Southern Grove, I-95 west) | 11.4M SF | 43,800 SF | 12.9% | up 20,000 SF | −6% | +3.1% | 853K SF |
| Fort Pierce | 13.4M SF | 25,300 SF | 19.6% | down 1.07M SF | −14% | +3.1% | none |
St. Lucie Inland: Tradition and Legacy Park
This is where the county’s very large warehouses are being built. Legacy Park at Tradition is a 425-acre park planned for about 5.4 million SF. It already houses Amazon (220,000 SF), FedEx Ground (245,000 SF) and Cheney Brothers (367,000 SF). Costco’s 595,000 SF cold and dry storage building is due in December 2026, is already leased, and is most of the 853K SF being built in this area. The largest lease of the past year was also here: 108,130 SF at Glades Logistics Park. Accel International Industrial Park, Sands Commerce Center and St. Lucie West round out the area. Vacancy here is 12.9%, and asking rents run about 6% below the market average.
Fort Pierce: the I-95 and Turnpike Merge
Fort Pierce has the most industrial space in the market and the most empty space. It is 19.6% vacant, after occupied space fell 1.07M SF over the past 12 months, and asking rents run about 14% below the market average. Interstate Crossroads Logistics Center (1 million SF, 40-foot clear) sits between I-95 and the Turnpike. Kings Logistics Center is planned on 65 acres along Kings Highway. Older, smaller buildings line Angle Road, Industrial Avenue, Crossroads Parkway and Orange Avenue, which is where contractor and yard users look first.
Port St. Lucie: Small Buildings in Town
The city’s industrial space is small buildings along US-1, Dixie Highway and Village Green Drive, averaging about 11,000 SF each. It is the tightest of the county’s main areas at 5.4% vacancy, and the most expensive, with asking rents about 25% above the market average. Almost nothing is being built.
What Size of Space Trades, and What Is Scarce
Most of the county is small buildings. The typical industrial building is about 12,350 SF, and 40% are between 5,000 and 10,000 SF. Leases are smaller still: the typical lease is about 1,900 SF, and two in three are 2,500 SF or less. Most new building since 2023 has been very large warehouses. That leaves big blocks of space easy to find inland and in Fort Pierce, and small units in the city scarce.
What Governs This Market
- Population growth. The Treasure Coast’s population is about 575,000, up nearly 15% in five years, and demand for local service and distribution space follows it.
- The I-95 and Turnpike confluence. Fort Pierce is the northernmost point where the two highways meet, which is what drew the 2023–24 wave of warehouses built without a tenant lined up.
- Available land. Large tracts already approved for building at Tradition and along Kings Highway mean new supply can arrive quickly. That has kept rent growth moderate.
How Ironmark Works in St. Lucie County
Owners and sellers: start with a free property valuation. In a market where the empty space sits in the large buildings, an owner of small units is selling the scarce product. Tenants: with large blocks empty inland and in Fort Pierce, tenants needing 50,000 SF or more have real choice and room to negotiate; in the city, renew early, because there is little to move to. See tenant representation. Landlords of very large warehouses face the most competition and need a leasing plan built on current free rent and other incentives. Buyers and investors: the estimated cap rate (the yearly return from rent, as a % of the price) for the whole market is 7.7%; small, leased coastal buildings have sold well below it. Yard and contractor users should start in the Fort Pierce corridors; our outdoor storage page covers truck parking and yards statewide.
Buying, selling, or leasing industrial in Port St. Lucie?
Tell us the property or the requirement. Ironmark will come back within one business day with a written read on your Port St. Lucie situation — what it is worth, what is available, or what the market will bear. No cost, no obligation.
Frequently Asked Questions
What is the industrial vacancy rate in St. Lucie County?
About 15.1% of all industrial space in St. Lucie County was empty as of October 2026 (3Q 2026), according to Ironmark research. It ranges from 5.4% for small buildings in the city of Port St. Lucie to 12.9% in the large buildings around Tradition and west of I-95, and 19.6% in Fort Pierce.
How much does warehouse space rent for in Port St. Lucie?
Across St. Lucie and Martin counties, landlords were asking about $10.90 per SF per year on average, according to one third-quarter 2026 market report. Location moves that a lot. Asking rents in the city of Port St. Lucie run about 25% above the market average, and in Martin County about 34% above. Around Tradition they run about 6% below, and in Fort Pierce about 14% below. Small units cost more per foot than big blocks.
Where are the industrial parks in St. Lucie County?
The main parks are Legacy Park at Tradition (Amazon, FedEx Ground, Cheney Brothers, and a Costco building due December 2026), St. Lucie West, Glades Logistics Park, and in Fort Pierce, Interstate Crossroads Logistics Center and the planned Kings Logistics Center on Kings Highway.
Is there new industrial construction on the Treasure Coast?
Yes. About 801K SF was being built across St. Lucie and Martin counties as of October 2026 (3Q 2026), according to one third-quarter 2026 market report. Most of it is Costco’s 595,000 SF cold and dry storage building at Legacy Park, which is already leased.
What size warehouse is most common in St. Lucie County?
The typical industrial building is about 12,350 SF, and the typical lease about 1,900 SF. Two in three leases are 2,500 SF or less, so small units are the core of the market.
Does Ironmark cover Martin County too?
Yes. Ironmark covers the whole Treasure Coast, including Stuart, Palm City, Jensen Beach and Indiantown, where the coastal market is tighter and rents are higher.
Talk to a Port St. Lucie advisor →
Nearby Florida Industrial Markets
Many Port St. Lucie requirements cross county lines. Nearby, Ironmark also covers Martin County and Melbourne, and every other Florida market is on our markets page.
Market data: Ironmark research, data as of October 2026 (3Q 2026); market asking rent and space being built from one third-quarter 2026 market report; Treasure Coast market history from the same research. Park and tenant details: public developer and economic-development sources. Refreshed quarterly. Informational only — not tax, legal, or appraisal advice.