Commercial Tenant Improvements Built Around Your Schedule, Budget, and Business Operations
Fast, well-coordinated tenant improvements for tenants, landlords, and property managers.
Rylko Builders delivers office, retail, laboratory, and commercial interior renovations ranging from single-suite build-outs to multi-floor renovation programs, including projects in occupied and historic buildings.
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Whether you're moving into a new space, renovating an existing office, or preparing spec suites for future tenants, Rylko Builders manages every phase of the tenant improvement process from pre-construction through permitting and construction. Our team helps clients move faster with accurate budgeting, proactive coordination, and schedules designed to minimize disruption.
What Is a Commercial Tenant Improvement?
A commercial tenant improvement (TI) is construction that customizes a leased space for a tenant's operational needs. Typical improvements include new walls, ceilings, lighting, HVAC modifications, electrical upgrades, restrooms, finishes, and specialty infrastructure. Tenant improvements range from shell-space build-outs and second-generation remodels to market-ready spec suites developed by building owners.
What We Build
- Office tenant improvements
- Laboratory and life science tenant improvements
- Retail build-outs and remodels
- Spec suites and market-ready spaces
- Multi-floor renovation programs
- Multi-building capital improvement programs
- Occupied building renovations
- Historic building renovations and façade improvements
- ADA compliance and accessibility upgrades
- Mechanical, electrical, plumbing, and lighting upgrades
How We Work
Preconstruction & Budgeting
We evaluate existing conditions, building requirements, and lease obligations early to develop realistic budgets, schedules, and construction strategies before design is fully complete.
Permitting & Agency Coordination
Our team manages permit submittals, agency reviews, deferred submittals, and consultant coordination to keep approvals moving efficiently and minimize schedule impacts.
Construction in Occupied Buildings
We regularly perform work in active office and commercial environments. Through phased construction, after-hours work, and close coordination with property management teams, we help neighboring tenants remain operational throughout construction.
"From the very start, Rylko had a complete understanding of the project and extensive knowledge of the building's requirements. Their team helped keep the project moving and delivered exactly what was promised."
—Client Construction Manager, Redwood City Spec Suite Program
Recent Tenant Improvement Projects
Redwood City Spec Suite Program
$17 million renovation program delivering concurrent spec-suite improvements across three occupied campus buildings.
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301 Brannan | San Francisco
Six-floor renovation of a historic building completed in 16 weeks, including permitting and tenant occupancy preparation.
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Knotel | San Francisco
15,000-square-foot coworking build-out completed in just 8 weeks with zero contract-driven change orders.
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Bay Area Technology Company
Full office renovation delivered ahead of schedule through expedited engineering, permitting, and procurement coordination.
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Highlighted Commercial Tenant Improvement Projects
Frequently Asked Questions
How long does a commercial tenant improvement take?
Project durations vary based on scope, permit requirements, and material lead times. Typical tenant improvements range from 8 to 24 weeks following permit issuance. Complex projects may require additional time for specialty equipment, agency reviews, or phased occupancy requirements.
Who pays for tenant improvements?
Usually the landlord provides a TI allowance, a set amount per square foot negotiated in the lease, and the tenant pays costs above it. Terms vary by lease, so early pricing helps you negotiate.
What is the difference between a build-out and a fit-out?
A build-out creates usable space from shell condition, including walls and building systems. A fit-out finishes and furnishes space that already has those systems. Many TIs include both.
Can you build while other tenants occupy the building?
Yes. We phase work, schedule noisy tasks after hours and coordinate access with property management, as we did across three occupied buildings in Redwood City.
Planning a Tenant Improvement?
Whether you're renovating a single suite or coordinating a multi-building improvement program, our team can help you evaluate budget, schedule, permitting requirements, and construction options before work begins.
Contact Rylko Builders today to discuss your project.
Start a Project | Call (415) 559-7251
Where We Work
Bay Area: San Mateo headquarters, serving San Francisco, the Peninsula, Oakland and San Jose.
Arizona: Tenant improvements as JKR Builders serving the Greater Phoenix Metro Area.
CA License 955155 | AZ ROC 366302 | Privately Owned | 16+ Years of Experience