Flex Space for Lease in San Jose & Silicon Valley

Office + Warehouse Under One Roof

Silicon Valley Flex Space Leasing

Flex space is available for lease across San Jose and Silicon Valley right now: ±2,600 SF in central San Jose (95110), three suites from ±1,419 to ±5,676 SF in Fremont, and ±9,108 SF in San Carlos. Published rates on these listings run from $2.15 per square foot industrial gross to roughly $2.52 per square foot all-in.

Jacob Sanchez is a San Jose based commercial real estate broker (CalBRE# 02064109) representing flex, industrial, office, and retail listings throughout Santa Clara County and the greater Bay Area. The current flex inventory is below, each with full specs, photos, and a downloadable brochure:

Browse all available Silicon Valley properties, or call 408.603.8943 to talk through your space requirements directly.

Commercial property interior

What Is Flex Space?

Flex space is a single commercial unit that combines office and warehouse under one roof, typically a built-out office at the front and an open work area with a grade-level roll-up door behind it. One address, one lease, and a floor plan the same business can reconfigure as it grows.

The format sits between a standard office and a full industrial building. You get professional space for meeting clients and running your team, plus the open floor, ceiling height, and door access to store equipment, stage jobs, or run light production. In this market the term covers everything from a ±1,400 SF contractor suite to a ±9,100 SF warehouse with finished offices inside it.

What Flex Space Is Available in San Jose and Silicon Valley Right Now?

Three flex listings represented by Jacob are on the market as of June 2026, covering the South Bay, the East Bay, and the Peninsula.

PropertySizeRateNotable Features
636 Newhall St, San Jose (95110)±2,600 RSF$5,850/mo NNN + $700 net opex (≈$6,550/mo all-in)Glass grade-level roll-up door, private office and conference room, secure gated yard
44802-44814 Osgood Rd, Fremont±1,419 to ±5,676 SF (3 suites)On requestAdjacent suites combinable to ±5,676 SF, multi-tenant property
593 Quarry Rd, San Carlos±9,108 SF (±891 SF office)$2.15/SF industrial gross + CAM (≈$19,582/mo base)Two 14′ × 14′ roll-up drive-in doors, 3-phase power, gated building

Searching downtown San Jose (95113)? The downtown core is dominated by office towers and ground-floor retail, so flex product with roll-up doors sits in the industrial pockets ringing downtown, in ZIP codes like 95110 and 95112. 636 Newhall Street is in 95110, minutes from both the downtown core and the airport.

North San Jose carries the densest flex and light industrial stock in the city, concentrated around Ringwood Avenue, Charcot Avenue, and Oakland Road. Jacob also represents industrial listings on Ringwood, Charcot, and Seaboard Avenue in that corridor, so if the suites above are not the right fit, that submarket is the next place to look.

Stop Searching. Start Engineering Your Next Move.

Tell Jacob your door, power, and layout requirements and he will shortlist the flex suites that actually fit, translate every NNN and CAM number into a true monthly cost, and negotiate the terms. Good flex space does not stay listed long.

What Is Flex Space Used For?

Flex space serves businesses that need a real office and real work space at the same address: service contractors, light assembly and R&D, e-commerce operations, and fleet-based companies. The mix of finished office and open floor is the whole point. You size each side to the way you actually operate.

  • Service contractors and trades. Office for estimating and dispatch, a roll-up door for equipment, and a yard for vehicles and materials. The secure gated yard at 636 Newhall is built for exactly this.
  • Light assembly, prototyping, and R&D. Open floor with real power. 593 Quarry’s 3-phase service supports equipment a standard office panel cannot.
  • E-commerce and light distribution. Receive through grade-level doors, rack the back, and keep the team in a finished front office.
  • Showroom plus warehouse. Customer-facing space up front, inventory behind it, one rent check.
  • Growing operations. Combinable suites, like Osgood Road’s 44846 and 44862 joining into ±5,676 SF, let you expand without relocating.

How Much Does Flex Space Cost to Lease in San Jose?

On current listings, flex space costs $2.15 per square foot industrial gross on the Peninsula and about $2.52 per square foot all-in in central San Jose. In monthly terms: a ±2,600 SF San Jose flex suite runs roughly $6,550 all-in, and a ±9,108 SF San Carlos suite runs roughly $19,582 base before CAM. Rates on the Fremont suites are available on request.

The quoted rate is rarely the real monthly number. Two lease structures decide what you actually pay:

  • NNN (triple net): base rent plus your share of property taxes, insurance, and maintenance, billed separately. 636 Newhall is $5,850 per month NNN plus $700 in net operating expenses, so the real number is about $6,550.
  • Industrial gross (IG) plus CAM: a base rate that already includes most operating costs, with common area maintenance billed on top. 593 Quarry is $2.15/SF industrial gross plus CAM.

Compare spaces on the all-in monthly figure, never the headline rate. A lower base rent with heavy pass-throughs costs more than a higher gross rate, and that difference is where first-time flex tenants get hurt.

What Should You Evaluate Before Leasing Flex Space?

Five things determine whether a flex suite works for your operation: door access, clear height, power, the office-to-warehouse ratio, and the lease structure. Walk every space with this list in hand.

  • Grade-level doors. Count, size, and condition. A 14′ × 14′ roll-up takes a box truck straight onto the floor; a smaller door means hand-loading everything. 593 Quarry has two 14′ × 14′ drive-in doors; 636 Newhall’s glass-paneled door doubles as storefront light.
  • Clear height. This sets your racking and equipment ceiling. Measure under the sprinklers and ducting, not to the roof peak.
  • Power. Single-phase service handles offices and light tools. Machining, compressors, and most production equipment need 3-phase. Verify the panel before you sign, because an upgrade is a five-figure conversation with the utility.
  • Office-to-warehouse ratio. Buildouts are slow and expensive, so pay for finished office only in the proportion you will use. ±891 SF of office inside ±9,108 SF (about 10 percent) fits a warehouse-heavy operation; 636 Newhall’s office and conference room layout suits a team that hosts clients on site.
  • NNN and CAM exposure. Ask for the prior year’s operating expense reconciliation before signing so the pass-throughs never surprise you.
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How Is Flex Space Different From Traditional Industrial Space?

Flex space is built around a meaningful office component and grade-level access. Traditional industrial space is built around cubic volume, dock-high loading, and minimal office. If your team works on site daily and meets customers there, flex fits. If you move full truckloads, you need industrial.

Flex SpaceTraditional Industrial
Office buildoutSubstantial, customer-readyMinimal
LoadingGrade-level roll-up doorsDock-high positions
Current local listings±1,419 to ±9,108 SFLarger footprints, warehouse-first
Best forContractors, R&D, showroom + warehouseDistribution, heavy production

If your requirement leans toward dock-high loading or a bigger footprint, start with industrial and warehouse space for lease in Silicon Valley instead.

How Does Jacob Help You Lease Flex Space?

Jacob represents tenants through the full lease cycle: shortlisting spaces against your door, power, and layout requirements, scheduling tours, translating NNN and CAM exposure into a true monthly cost, and negotiating rate and terms with the landlord. That is the core of his tenant representation work, and it is local market expertise applied to a market where good flex suites do not stay listed long.

Coverage runs across Santa Clara County and the broader Bay Area, including commercial real estate in Fremont, where the Osgood Road flex suites sit near I-680 in south Fremont.

Explore More

Related Services: Industrial & Warehouse  |  Office Leasing  |  Retail Space
Service Areas: Fremont  |  San Jose  |  San Carlos

Find the Right Flex Space for Your Business

Whether you need a ±1,400 SF contractor suite or a ±9,100 SF warehouse with finished offices, Jacob Sanchez CRE brings the local market knowledge to match your operation to the right flex space across San Jose and Silicon Valley.