Looking for an industrial real estate broker in Martin County? Ironmark Capital Advisory represents owners, tenants, buyers and investors across Martin County, led by two SIOR-designated principals, from Stuart, Palm City, Jensen Beach and Hobe Sound to Indiantown. Martin’s core industrial market was 4.3% vacant (share of space that is empty) as of October 2026 (3Q 2026), and asking rents there run about 34% above the Treasure Coast average, the highest on the Treasure Coast, according to Ironmark research.
The Martin County Industrial Market Now
Martin County has two very different industrial markets. The core, Stuart, Palm City, Jensen Beach and Hobe Sound, holds about 5.8M SF in some 376 mostly small buildings. It is 4.3% vacant, against a five-year average of 2.6%. Occupied space (space tenants moved into, minus space they moved out of) rose 123,000 SF over the past year, more than in any other Treasure Coast area. Inland Martin, around Indiantown and the Kanner Highway, is different: about 2.0M SF in just 24 large buildings, averaging 82,300 SF each. It is 68.8% vacant, and occupied space there fell 342,000 SF over the past year. A single county-wide average describes neither market, so we quote them separately. Across the whole Treasure Coast (St. Lucie and Martin counties), vacancy is 16.3%, and landlords are asking about $10.90 per SF per year on average, according to one third-quarter 2026 market report. Our Treasure Coast industrial market report covers the quarter in detail.
| 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 |
|---|---|---|---|---|---|---|---|
| Martin (Stuart, Palm City, Jensen Beach, Hobe Sound) | 5.8M SF | 15,500 SF | 4.3% | up 123,000 SF | +34% | +1.7% | 235K SF |
| Martin Inland (Indiantown, Kanner Hwy) | 2.0M SF | 82,300 SF | 68.8% | down 342,000 SF | −16% | +4.4% | none |
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.
Parks and Corridors
Stuart and Hobe Sound are small-unit and flex country (flex space is small office-and-warehouse units): SE Willoughby Boulevard, SE Federal Highway, SW Jack James Drive, SW Commerce Way and SE Bridge Road. New space is coming here too, including a seven-building, roughly 235,000 SF project on SE Willoughby Boulevard due in late 2027. Palm City will add Martin Commerce Park at I-95 Exit 110: 167 acres and 1.1 million SF at build-out, with a first phase of 485,000 SF in buildings of 32,000 to 117,000 SF and units from 4,000 SF, and occupancy as early as 2028. Indiantown has Florida Commerce Park on SR 710, served by CSX rail with a 4,000-foot siding.
What Size of Space Trades, and What Is Scarce
The typical Martin County industrial building is about 12,000 SF, and 70% are under 20,000 SF. The typical lease is about 2,000 SF. Small units in the coastal core are the scarce product: few are built, and Martin’s growth rules keep new sites few.
What Governs This Market
- Growth-management limits. Martin County keeps urban development inside its Primary and Secondary Urban Service Districts, in place since 1990. That keeps new industrial land scarce near the coast, and exceptions for new parks are contested.
- A manufacturing and marine economy. Demand comes from aerospace, marine and specialty manufacturing as much as warehouse and distribution, which favors smaller, well-specified buildings.
- Supply is coming. Seven buildings totaling 235K SF are being built in the Martin core, and only 1.9% of that space is already leased. Martin Commerce Park adds more from 2028. Today’s tightness is real, but it shouldn’t be assumed to last.
How Ironmark Works in Martin County
Owners and sellers of small units and flex space hold the scarcest product on the Treasure Coast; start with a free property valuation. Tenants needing small space should expect competition and start renewal talks early; see tenant representation. Larger requirements may find more choice inland or across the line in St. Lucie County. Landlords, buyers and investors: buyers have paid up for the coast. One buyer bought five Stuart buildings in May 2026 at a stated 5.1% cap rate (the yearly return from rent, as a % of the price), against an estimated 7.7% for the Treasure Coast market as a whole.
Buying, selling, or leasing industrial in Martin County?
Tell us the property or the requirement. Ironmark will come back within one business day with a written read on your Martin County 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 Martin County?
In the core Martin County market around Stuart, Palm City, Jensen Beach and Hobe Sound, 4.3% of industrial space was empty as of October 2026 (3Q 2026), according to Ironmark research. Inland Martin, with only 24 large buildings, was 68.8% vacant after occupied space there fell 342,000 SF over the past year.
How much does industrial space rent for in Stuart?
Asking rents in the core Martin County market, which includes Stuart, ran about 34% above the Treasure Coast average as of October 2026 (3Q 2026), the highest on the Treasure Coast, according to Ironmark research. 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.
Is it hard to find small warehouse space in Martin County?
Yes. Most buildings are under 20,000 SF, and vacancy in the core was 4.3%, against a five-year average of 2.6%. Martin County’s urban service district rules limit new industrial land near the coast.
What industrial parks are being built in Martin County?
Martin Commerce Park at I-95 Exit 110 in Palm City is planned for 1.1 million SF, with a first phase of 485,000 SF and occupancy as early as 2028. A roughly 235,000 SF, seven-building project on SE Willoughby Boulevard in Stuart is due in late 2027.
Does Ironmark cover Palm City and Jensen Beach?
Yes. Ironmark covers all of Martin County, including Stuart, Palm City, Jensen Beach, Hobe Sound and Indiantown, and the rest of the Treasure Coast.
Talk to a Martin County advisor →
Nearby Florida Industrial Markets
Many Martin County requirements cross county lines. Nearby, Ironmark also covers Port St. Lucie and Palm Beach County, and every other Florida market is on our markets page.
Market data: Ironmark research, data as of October 2026 (3Q 2026); Treasure Coast asking rent from one third-quarter 2026 market report. Park details: public developer and county sources. Refreshed quarterly. Informational only — not tax, legal, or appraisal advice.