
General Contractor in Corona del Mar, CA
Siemonsma Construction is a licensed, bonded general contractor in Newport Beach, serving Corona del Mar with custom remodels, additions and new homes.
Corona del Mar is a neighborhood of the City of Newport Beach, a short drive from our office. Siemonsma Construction is a licensed, bonded general contractor with more than 40 years of experience in custom remodels and new construction.
Compact lots and close neighbors
The village area, known for its streets named after flowers, was laid out with compact lots, many of them served by rear alleys. Homes sit close to their neighbors, so a remodel or a rebuild has to be planned around tight access, limited street parking and very little room to stage materials.
Over the years many of the original cottages have been remodeled, expanded or replaced with new homes. On lots this size, zoning limits on height, setbacks and floor area do much to shape what can be built, so they are worth understanding before design begins.
Coastal and bluff review
Because Corona del Mar is part of Newport Beach, building permits and plan check go through the city's Building Division. Much of the neighborhood lies within California's Coastal Zone, where new homes, additions and demolitions can require a coastal development permit. Properties on or near the coastal bluffs, such as those along Ocean Boulevard, can face additional review of bluff setbacks and geotechnical conditions.
What we do in Corona del Mar
We manage custom remodels, additions and new custom homes, working with trusted architects, engineers and interior designers. We handle permit applications, city coordination and approvals, coordinate the trades through construction, and finish with a walkthrough and a completed punch list.
Serving Corona del Mar
Our Services in Corona del Mar, 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
No. Corona del Mar is part of the City of Newport Beach, so building permits and plan check go through the city's Building Division, and the city's zoning and coastal rules apply.
Often, yes, within the zoning limits on height, setbacks and floor area for the lot. In the Coastal Zone, demolition and new construction can also require a coastal development permit. An architect can confirm what your lot allows, and it helps to bring in a builder while the plans are being developed.
Through planning. Deliveries are sequenced so that materials arrive when they are needed and not before, neighboring properties are protected, the street and alley are kept passable, and the city's rules on work hours and use of the street are followed.
Yes. We work with trusted architects, engineers and interior designers, and we also build from plans by a design professional you have already hired.

Planning a Project in Corona del Mar?
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