What a San Jose buildout costs per square foot
Restaurant buildouts in San Jose cluster around $150–$300 per square foot in 2026, and the spread is almost entirely about what infrastructure already exists. A second-generation space — one that was a restaurant before — can open for $120–$180/sq ft if the hood, grease interceptor, and utilities are intact and code-current. A first-generation space (a vanilla shell that was retail or office) routinely hits $250–$350/sq ft because you're building the entire commercial kitchen from zero.
On a 2,000 sq ft space, that's roughly $240K–$360K second-gen versus $500K–$700K first-gen — before equipment, which is a separate line. The single biggest lever on your budget is signed before construction starts: which space you lease.
The hood: Type I ventilation and fire suppression
Any cooking that produces grease-laden vapor — fryers, griddles, charbroilers, ranges — requires a Type I commercial hood with a UL-300 fire-suppression system, make-up air, and roof penetrations for the exhaust and supply fans. A new Type I hood installed runs roughly $25K–$60K depending on length, CFM, and whether ductwork and roof curbs already exist.
This is the line that makes second-generation spaces so valuable: inheriting a working, properly sized Type I hood can save $40K and weeks of long-lead equipment and roof work. Before signing a second-gen lease, verify the hood's size and condition and that it can be recertified — not just that it's physically there.
The grease interceptor: the budget wildcard
San Jose's sanitary sewer requires grease to be captured before it enters the system. Small operations may use an under-sink grease trap, but most full-service kitchens need an in-ground grease interceptor sized to the menu's fixture and fryer load. Installing a new in-ground interceptor — cutting the slab or trenching the lot — runs $20K–$70K and can add weeks.
This is the classic mid-project surprise: a second-gen space's existing interceptor is undersized on paper for your new menu. Sometimes a documented grease-load calculation satisfies the sanitation district and avoids replacement; sometimes it doesn't. Resolve interceptor sizing during due diligence, not after demolition.
Health permit and plan check (Santa Clara County DEH)
Restaurants in San Jose are permitted for food safety by the Santa Clara County Department of Environmental Health (DEH), not the city. You submit plans for plan check — covering finishes, the three-compartment, prep, hand, and mop sinks, refrigeration, the hood, and the interceptor — while the city building department permits the construction itself. Running county health and city building permits in parallel is how you protect the opening date.
Budget for plan-check and permit fees in the low-to-mid five figures across both agencies, plus a pre-opening DEH inspection. The schedule killer isn't the fee — it's a correction cycle you could have avoided with a complete first submittal.
Second-gen vs. first-gen: where the money goes
- Hood & exhaust: $25K–$60K new (often reusable in second-gen).
- Grease interceptor: $20K–$70K new (often reusable in second-gen).
- Plumbing for code sinks, floor drains, and the cookline: $30K–$80K.
- Electrical and panel capacity for the cookline and HVAC: $25K–$70K.
- Health-code finishes — epoxy or quarry-tile floors with coving, washable walls: $20K–$50K.
- HVAC and make-up air balanced to the hood: $25K–$60K.
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Frequently Asked Questions
Why is a second-generation restaurant space so much cheaper?+
Because the most expensive, longest-lead infrastructure — the Type I hood, the grease interceptor, gas and heavy electrical service, and floor drains — already exists. If they're sized for your menu and code-current, you can skip $80K–$150K of work and weeks of schedule. Verify they're actually usable before signing the lease.
Who issues the health permit in San Jose?+
The Santa Clara County Department of Environmental Health (DEH) handles food-facility plan check and the health permit; the City of San Jose handles the building permit for construction. They're separate approvals, and we file them in parallel to protect the opening date.
How long does a San Jose restaurant buildout take?+
Typically 10–16 weeks of construction once permits issue, with 4–10 weeks of design and parallel plan check before that. First-generation spaces and anything needing a new interceptor sit at the long end. Long-lead equipment like hoods and walk-ins should be ordered at design freeze.
Does equipment come out of the buildout budget?+
No — kitchen equipment (ranges, fryers, refrigeration, smallwares) is usually budgeted separately from construction. The buildout covers the space and its systems; equipment is its own line, often $80K–$250K depending on concept.
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