
Commercial Construction
Commercial Construction in Newport Beach, CA
Commercial Construction in Newport Beach, CA
Commercial work runs on different constraints than residential: lease dates, landlord requirements, accessibility rules, fire and health department reviews, and the cost of every day a business is not open. Siemonsma Construction works with commercial clients as well as homeowners, on office, retail and restaurant projects, providing new construction, remodels and project management as the general contractor.
Why Siemonsma Construction
- Residential and commercial general contractor
- Office, retail and restaurant projects
- Permit applications, city coordination and approvals handled
- More than 40 years of construction experience
Scope
What the Work Can Include
- Office construction and remodels
- Retail space construction and remodels
- Restaurant construction and remodels
- Coordination with your architect, engineers and interior designer
- Permit application, plan check and city inspections
- Project management from preconstruction through closeout
How it works
From Design To Build
- 01
Preconstruction
We review the plans, the space and the lease requirements with you and the design team, and give input on cost, buildability and schedule before the drawings are final.
- 02
Permits and approvals
We handle permit applications and city coordination. Depending on the use, approvals can also involve the fire authority and, for restaurants and other food businesses, health department plan review.
- 03
Construction
We schedule and coordinate the trades, inspections and deliveries, and work within the building's rules on hours, access and noise where the space is part of a larger property.
- 04
Punch list and turnover
We walk the space with you, complete the punch list and obtain final inspection sign-off, so that the space can be handed over for furniture, equipment and opening.
FAQ
Frequently Asked Questions
Office, retail and restaurant projects, both new construction and remodels of existing space. If your project is a different type, contact us and we will tell you plainly whether it is a fit.
Yes. Commercial spaces open to the public have to comply with the Americans with Disabilities Act and the accessibility provisions of the California Building Code, and remodel work commonly triggers upgrades to items such as entrances, restrooms and the path of travel. The architect addresses this in the drawings, and it belongs in the budget from the start.
Sometimes. It depends on the scope and on safety. In some cases work can be phased or scheduled outside business hours. It needs to be decided during planning, because it affects both the schedule and the cost.
We handle the permit applications, city coordination and approvals. Most leases also require the landlord to approve the plans and the contractor before work starts. Those requirements come from your lease, so share it with the design team early.
More services
Other Services

Kitchen Remodeling
A kitchen remodel involves more trades than any other room in the house: demolition, framing, plumbing, gas, electrical, ventilation, cabinetry, countertops, tile and finish carpentry. Siemonsma Construction manages that work as the general contractor, from coordinating the design and handling permits through to the final walkthrough, so one company is responsible for the sequence and the result.
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Bathroom Remodeling
Bathrooms are small rooms with a lot happening behind the walls. Supply and drain lines, waterproofing, ventilation, electrical and tile all have to be right, because mistakes show up later as leaks and moisture damage. Siemonsma Construction runs bathroom remodels as the general contractor, from design coordination and permits through construction and the final walkthrough.
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Whole-Home Remodeling
A whole-home remodel is closer to building a house than to updating a room. Structure, mechanical systems, layout and finishes are all in play at once, and the order in which the work happens matters. Siemonsma Construction is a general contractor with more than 40 years of experience in custom remodels and new construction, and manages each project from the first plans through the final walkthrough.
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Ready to Talk About Your Project?
Building isn’t just construction – it’s a collaboration. Tell us what you have in mind.
