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Roncelli delivers office, workplace, and tenant improvement projects for owners, developers, property teams, and tenants who need spaces ready to perform from day one. Our work supports productivity, brand identity, employee experience, building operations, and immediate occupancy goals.

Office and tenant improvement projects often move quickly and take place within fully occupied buildings. Fixed tenant schedules, lease commitments, phased occupancy, move-in dates, and turnover deadlines leave little room for disruption. Roncelli brings structured planning, disciplined coordination, and clear communication to manage these constraints while protecting building operations and the tenant experience.

Our experience includes core and shell construction, full interior buildouts, phased renovations, workplace transformations, and fast-track improvements across multi-tenant environments. We coordinate closely with owners, property managers, building engineers, design teams, tenant representatives, and trade partners to manage logistics, access, safety, noise, sequencing, and schedule control.

Whether delivering a new buildout or transforming an existing workplace, Roncelli maintains focus on quality, safety, cost awareness, and reliable turnover. We build office environments that adapt to evolving workplace needs while delivering consistency, efficiency, and long-term value.

Chase Janssen
Chase Janssen
Director - Preconstruction

Why Roncelli

Tenant‑Focused Delivery

Tenant‑Focused Delivery

Clear understanding of tenant needs, lease commitments, and move‑in requirements to deliver spaces ready for immediate occupancy.

Turnover‑Driven Scheduling

Turnover‑Driven Scheduling

Schedules built around fixed turnover dates, lease milestones, phased occupancy, accelerated timelines, and move-in commitments.

Occupied Building Coordination

Occupied Building Coordination

Disciplined coordination within active buildings to manage access, logistics, noise, safety, tenant communication, and ongoing operations.

Property Team Collaboration

Property Team Collaboration

Close coordination with owners, property managers, building engineers, design teams, tenant representatives, and trade partners to maintain alignment and minimize disruption.

Consistent Quality Execution

Consistent Quality Execution

Reliable delivery of high-quality workplace interiors with attention to finishes, systems, details, durability, and long-term workplace performance.

Featured Projects

Engineering Laboratory Office Renovations

Clients
Fordland
Location
Dearborn, MI
Size
205,000 SF
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General Motors Vehicle Engineering Center Tower

Clients
General Motors
Location
Warren, MI
Size
1,000,000 SF
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1st Floor Conference Rooms

Clients
DTE
Location
Detroit, MI
Size
13,531 SF
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Workplace Transformation Initiative

Clients
DTE Energy
Location
Detroit, MI
Size
112,000 SF
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ZF Office Renovation

Clients
ZF Automotive U.S. LLC
Location
Northville, MI
Size
130,000 SF
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Wayne County Airport Authority Michael Berry Administration Building

Clients
Wayne County Airport Authority
Location
Detroit Metropolitan Wayne County Airport, Romulus, MI
Size
85,636 SF
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Detroit Church of Scientology

Clients
Church of Scientology
Location
Detroit, MI
Size
55,237
View Project

Archdiocese of Detroit Administrative Offices Renovation

Clients
Archdiocese of Detroit
Location
Detroit, MI
Size
60,000 SF
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Wagner Place Development

Clients
Ford Land
Location
Dearborn, MI
Size
147,795 SF
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Warren Service Center Renovation

Clients
DTE Energy
Location
Detroit, MI
Size
40,300 SF
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State Savings Bank Renovation

Clients
Bedrock Management Services
Location
Detroit, MI
Size
100,000 SF
View Project