
General Contractor in Newport Beach, CA
Siemonsma Construction is a licensed, bonded general contractor based in Newport Beach, CA: custom remodels, new construction and commercial projects.
Siemonsma Construction is a general contractor based in Newport Beach. With more than 40 years of experience, the company works with residential and commercial clients on new construction, custom remodels and project management.
Our office is in Newport Beach, so projects in the city are close to home. This page covers what is particular about building here and how we approach a project from the first plans to the final walkthrough.
Building in Newport Beach: what to plan for
Much of Newport Beach lies within California's Coastal Zone. In those areas a project can need a coastal development permit in addition to a building permit, and the review considers matters an inland project never encounters, such as public access to the shoreline and setbacks from bluffs and the water. The city has a Local Coastal Program certified by the California Coastal Commission and processes most coastal development permits itself, while some locations remain under the Commission's direct jurisdiction. Interior remodels of existing homes are generally exempt, but which rules apply depends on the specific lot and scope, so it is one of the first things to check.
The neighborhoods also build differently from one another. On Balboa Island, the Balboa Peninsula and Lido Isle, lots are compact and homes sit close together, so access, parking, material deliveries and staging need careful planning. Low-lying areas around the harbor are in mapped flood hazard zones, where new homes and substantial remodels have to meet floor elevation requirements. In many planned communities, a homeowners association runs its own architectural review alongside the city's process.
Residential work
For homeowners we manage custom remodels, from kitchens and bathrooms to whole houses, as well as additions and new custom homes. We work with trusted architects, engineers and interior designers, and we can build from plans you already have or work with the design team from the start.
Commercial work
Siemonsma Construction also works with commercial clients, on office, retail and restaurant projects. Commercial jobs bring their own requirements, including accessibility upgrades, landlord approvals and, for restaurants, health department plan review, and they are usually tied to a lease date. Those constraints are addressed during planning, before construction starts.
Permits and city coordination
Building permits in Newport Beach are issued by the city's Building Division after plan check. We handle permit applications, city coordination and approvals as part of the project, so you are not left to work out which department needs what.
Serving Newport Beach
Our Services in Newport Beach, CA
Residential and commercial construction, all in one, from design to build.

Kitchen Remodeling
Custom kitchen remodels, managed from plans and permits through construction.
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Bathroom Remodeling
Custom bathroom remodels with design, permits and construction handled by one contractor.
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Whole-Home Remodeling
Custom remodels of entire homes, all in one, from design to build.
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Custom Homes & New Construction
New construction and custom homes from a general contractor with more than 40 years of experience.
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Home Additions
Added living space that is designed, permitted and built as one project.
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Commercial Construction
Commercial construction and project management for office, retail and restaurant space.
Learn MoreFeatured Project
Laguna Beach Residence
A Siemonsma Construction project in Laguna Beach, CA.






FAQ
Frequently Asked Questions
It depends on where the property is and what you are doing. Much of the city is in the Coastal Zone, where new homes, additions and demolitions can require a coastal development permit. Interior remodels of existing homes are generally exempt. The city's planning staff can confirm what applies to your address, and we check it at the start of a project.
The City of Newport Beach, through the Building Division of its Community Development Department. Corona del Mar, Balboa Island and Newport Coast are all part of the city, so projects there go through the same department.
Yes. Siemonsma Construction works with residential and commercial clients. Commercial examples include office, retail and restaurant projects.
Yes. Siemonsma Construction is a licensed, bonded general contractor. In California you can check any contractor's license status on the Contractors State License Board website, and it is worth doing for every contractor you consider.

Planning a Project in Newport Beach?
Building isn’t just construction – it’s a collaboration. Tell us what you have in mind.
