Quick Answer
Outside downtown’s core, St. Petersburg’s growth is spreading to four main areas: the Gateway/Carillon corridor in the north for corporate and fintech offices, the Innovation District south of downtown for marine, defense and life-science tech, the Grand Central–Warehouse Arts–Kenwood corridor for small firms and coworking, and the Skyway Marina District in the south as a housing-led area. The Historic Gas Plant District is the long-term wild card.
District Comparison at a Glance
| District | Location | Best Fit | Status |
|---|---|---|---|
| Gateway / Carillon | North St. Pete, near I-275 | Corporate HQ, fintech, finance | Established, expanding |
| Innovation District | South of downtown core, waterfront | Marine, defense, life sciences | Growing, master plan 2026 |
| Grand Central / Warehouse Arts / Kenwood | West along Central Ave. | Startups, creative firms, coworking | Active, small-format space |
| Skyway Marina District | South, along 34th St. S. | Workforce housing, retail, future office | Early, residential-led |
| South St. Pete CRA / Deuces | South-central | Microbusiness, startups | Grant-supported revitalization |
| Historic Gas Plant District | Downtown’s western edge | Mixed-use, long-term | Developer selected July 2026 |
Why Founders Are Looking Beyond Downtown
Downtown St. Petersburg is tight on large office blocks. Local real estate experts have noted downtown runs at roughly a 4% vacancy rate with only about 15,000 square feet of contiguous office space available. For a company that needs room to grow, that pushes the search outward. The same experts pointed to the Gateway area as a likely fit for a large corporate tenant.
1. Gateway and Carillon: The Corporate Engine
The Gateway area in north St. Petersburg is the city’s largest established employment hub and its most natural landing spot for bigger tech and finance firms.
Scale estimates vary by source. One commercial listing describes the Gateway as supporting more than 2,700 businesses and 60,000 employees. Another broker listing puts the broader Gateway submarket at more than 4,500 businesses and 84,000 employees, with neighbors including Raymond James, Franklin Templeton and General Dynamics.
Access is the selling point. The recently completed $600 million Gateway Expressway improves links to I-275, Roosevelt Boulevard and Ulmerton Road, with drive times to both airports and downtown St. Pete of 7 to 15 minutes.
Tech is already arriving. City stakeholders recruited New York-based trading platform Webull, which opened an office in the Carillon business park. Shopper intelligence firm Catalina also sold its Carillon headquarters for $29.5 million, with a Webull-affiliated real estate entity among those involved.
Who Should Look Here
- Companies needing 10,000+ square feet of contiguous Class A space
- Fintech and financial services firms wanting proximity to Raymond James
- Teams with employees commuting from both Pinellas and Hillsborough counties
2. The St. Pete Innovation District: Deep Tech on the Waterfront
The Innovation District sits just south of the downtown core and focuses on research-driven industries rather than general office use. Established in 2016, the district spans 564 acres and is home to about 9,000 employees across 215 businesses, with $1.38 billion in property value and $146 million in grant funding.
Its fastest-growing piece is maritime technology. The Maritime and Defense Technology Hub at Port St. Pete, now in its fifth year, houses 19 companies, and plans are underway for a second 50,000-square-foot building. The district also published its first master plan in January 2026.
Health care is expanding alongside it. Orlando Health Bayfront Hospital opened its Institute Square complex in February 2026.
Who Should Look Here
- Ocean tech, defense contractors and geospatial firms
- Life sciences and health-tech companies near hospital anchors
- Startups seeking research partnerships with USF St. Petersburg and the USF College of Marine Science
3. Grand Central, Warehouse Arts and Kenwood: The Startup Corridor
West of downtown along Central Avenue, older commercial buildings are being converted into small offices and flexible workspace. This corridor suits founders who want walkability and character over a corporate campus.
Flexible space is available at modest scale. Clear Labs offers coworking and private offices at 2529 Central Ave. in the Grand Central District, renovated in 2026. Nearby, a renovated 2,135-square-foot space at 2942 1st Ave. N. is listed at $32 per square foot for office, retail, café or studio use.
Closer to downtown, the EDGE District is filling in the gap. Connect St. Pete opened a coworking space there, and the former Orange Station site, now called The Central, is being positioned as a business, culture and hospitality hub with a new 500-plus-space garage.
The Warehouse Arts District to the south adds industrial-flex and production space, which fits hardware startups, fabricators and creative agencies that need more than a desk.
Who Should Look Here
- Seed-stage startups and small agencies
- Remote professionals wanting a coworking address
- Creative, design and light-production businesses
4. Skyway Marina District: Housing First, Business Next
The Skyway Marina District in south St. Petersburg is the city’s most active emerging area, though growth today is mostly residential. The biggest project is Sky Town, an $800 million redevelopment on the 34.3-acre former Ceridian business campus, with construction underway on its first phase.
The developer behind it, Altis Cardinal, has called the district the next city center. Earlier plans showed the project carrying 92,000 square feet of commercial space anchored by Sprouts Farmers Market.
More housing is in the pipeline. A developer has proposed Alton Skyway, a 619-unit project, with its application stating that residential demand in the district remains strong.
For businesses, the Skyway play is about future workforce and customers. New rooftops typically come before office demand. Firms that want lower costs near a growing labor pool, and a short drive to both the beaches and downtown, should watch this corridor.
5. South St. Pete CRA and the Deuces: Startup Grants
The South St. Petersburg Community Redevelopment Area offers something other districts do not: direct cash support for small and early-stage businesses. The CRA covers 7.4 square miles and includes 22nd Street South, the historic Deuces Live business district.
Grant levels are meaningful for microbusinesses. Brick-and-mortar businesses can receive $10,000, home-based and shared-space businesses $5,000, and early-stage startups $2,500 under a pilot program. A separate Commercial Site Improvement Grant matches up to $20,000 for exterior building upgrades.
Public investment along the corridor is also rising, including the city’s restoration of the Historic Manhattan Casino at 642 22nd St. S.
6. The Historic Gas Plant District: The Long-Term Wild Card
The 86-acre site around Tropicana Field sits on downtown’s western edge and could reshape where innovation activity concentrates over the next decade. With the Rays committed to a new Tampa ballpark for the 2029 season, Mayor Ken Welch selected The Burg Bid, led by Blake Investment Partners, to redevelop the district in July 2026.
The plan projects $8.1 billion in development investment and limits public investment to $75 million from the community redevelopment area. City priorities for the site have included advancing a workforce development ecosystem and studying a right-sized convention center.
Timelines are long, and the city has pledged to honor its commitment to the Rays through 2028. Businesses should treat the Gas Plant as a 2030s opportunity, not a near-term office option.
Brian’s Take
St. Pete is not building one innovation district. It is building a portfolio, and each piece serves a different stage of company.
The Gateway is where companies go once they’re proven. It has the large floor plates, the parking and the dual-county commute shed that downtown can’t match. If you’re a Series B fintech or a relocating HQ, start your search there.
The Innovation District is the most interesting long-term bet. Maritime and defense tech is a niche few Florida cities can credibly claim, and a second 50,000-square-foot hub building signals demand is outrunning supply. That’s a specialized cluster with federal money behind it, and specialized clusters tend to be sticky.
The Central Avenue corridor is the right first stop for a small team. Rents in the low $30s per square foot on renovated older space are a reasonable entry price for a walkable address.
Skyway Marina is the one I’d watch for timing. Thousands of new housing units in the pipeline will eventually pull service businesses, medical offices and small professional firms south. Early movers there may lock in space before the commercial market catches up to the rooftops.
Frequently Asked Questions
Where is St. Pete’s largest business district outside downtown?
The Gateway area in north St. Petersburg, anchored by Carillon Office Park. Estimates of its scale run from roughly 60,000 to 84,000 employees depending on how the area is defined.
What is the St. Pete Innovation District?
A 564-acre district south of the downtown core focused on marine science, life sciences, defense and technology, with about 9,000 employees and 215 businesses.
Where can startups find coworking space outside downtown St. Pete?
The Grand Central District along Central Avenue and the EDGE District both offer coworking options, including Clear Labs and Connect St. Pete.
Are there grants for new businesses in St. Petersburg?
Yes. The South St. Petersburg CRA offers grants of $2,500 to $10,000 for eligible small businesses and startups, plus up to $20,000 in matching funds for exterior improvements.
What is happening with the Tropicana Field site?
The city selected The Burg Bid, led by Blake Investment Partners, in July 2026 for an $8.1 billion redevelopment of the Historic Gas Plant District. The Rays will play in St. Petersburg through 2028.
Is the Skyway Marina District good for business?
It is an emerging area driven mainly by new housing, including the $800 million Sky Town project. Commercial opportunity is expected to follow population growth.
Sources and Further Reading
- St. Pete Catalyst, “Real estate experts: Here’s where a Fortune 500 company can locate its St. Pete HQ”
- CommercialSearch, Gateway Office listing, 9675 4th Street North (updated September 2026)
- Showcase, 560 Carillon Parkway listing, Gateway submarket overview
- St. Pete Catalyst, St. Pete EDC coverage (Webull office in Carillon)
- St. Pete Catalyst, Catalina headquarters sale coverage
- Global Institute on Innovation Districts, St. Pete Innovation District profile
- Florida Trend, “See the future of innovation in St. Petersburg: Step inside Spark Labs” (September 2026)
- 83 Degrees Media, “St Pete Innovation District celebrates 10 years, looks to future” (2026)
- CommercialCafe, Grand Central Coworking – Clear Labs listing (updated August 2026)
- CommercialCafe, 2942 1st Ave N listing (updated June 2026)
- St. Pete Catalyst, “Coworking space coming to the EDGE District”
- BLOOM via Yahoo News, “EDGE District project includes 500 parking spaces, hotel, office tower” (2026)
- St. Pete Catalyst, “Construction begins on $800 million Skyway Marina project”
- St. Pete Catalyst, “South Florida firm closes on Ceridian campus property”
- St. Pete Catalyst, “Sprouts, more commercial coming to Skyway Marina District”
- St. Pete Catalyst, “Developer submits 619-unit Skyway Marina proposal”
- St. Pete Catalyst, “South St. Pete businesses, startups have new resources”
- St. Pete Catalyst, “How the South St. Pete CRA business grant program changed one local business for the better”
- St. Pete Rising, “Several developments move forward along The Deuces corridor in south St. Pete”
- Business Observer, “St. Pete mayor chooses team for coveted Gas Plant project” (July 2, 2026)
- St. Pete Catalyst, “Rays redevelopment deal officially ends, progress continues”
- Spectrum News, “Welch announces Gas Plant District redevelopment pick” (July 2, 2026)
