Design, planning, permits and construction managed by one experienced team — from kitchen and bathroom remodels to full home renovations, additions, ADUs and custom homes.
Licensed • Insured • Bonded • 15+ Years Experience • Design-Build Experts • Serving Southern California
Our Services: Bathroom Remodeling · Kitchen Upgrades & Remodel · Complete Home Renovations · ADU Design & Build· Ground-up Home Construction
Corona del Mar has a distinctive mix of older coastal cottages, mid-century homes, remodeled residences, and larger custom properties, often on lots where every square foot matters. Many homes were built long before today’s expectations for open layouts, larger kitchens, primary suites, storage, and seamless indoor-outdoor living. Others have been updated over the years but still feel disconnected, with additions or finishes that no longer work well together.
Remodeling here can also involve challenges beyond finishes. Older framing, outdated plumbing or electrical systems, structural walls, limited site access, and permitting or coastal requirements can all affect how a project should be planned.
Kol & Co. helps homeowners take a more complete approach. As a licensed, insured and bonded design-build contractor with 15+ years of experience, we can coordinate the project from early planning through design, engineering, permits, construction and final completion.
Whether you’re opening up an older floor plan, remodeling a kitchen or bathroom, renovating the entire home, adding living space, building an ADU, or considering a custom home, we start by understanding the property first — then help you determine the most practical way to move forward.
Ready to talk about your home? Schedule an in-home consultation and we’ll meet you at the property to discuss what you want to change.
Remodeling costs vary considerably depending on the existing home, project scope, structural changes, finish level and complexity of the design. As an initial planning range, many of the projects we work with fall around:
These are planning ranges rather than fixed prices.
We prefer to understand the actual project before giving homeowners a meaningful estimate.
For homeowners who like their location but not the way their house currently works, a full home remodel can completely change the experience of living there. We handle renovations involving multiple rooms, structural changes, kitchens, bathrooms, flooring, lighting, doors and windows, finish selections and indoor-outdoor connections under one project.
Whether you’re considering a detached ADU, attached ADU or conversion of existing space, we can help evaluate the property and coordinate the project from planning through construction.
For homeowners considering a ground-up home in Corona del Mar, Kol & Co. provides design-build coordination from early planning through construction. We work with you to develop a home around the property, architectural direction and the way you want to live—while coordinating the many moving parts involved in bringing a custom residential project from plans to completion.
A full home remodel in Corona del Mar can involve much more than replacing finishes. Every remodel is different, but a comprehensive renovation could include the following.
Many older Corona del Mar homes were designed with smaller, separated rooms. A full remodel can rework the floor plan to improve how the home functions today.
Could include:
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A whole-home renovation often updates the major living areas together so the finished home feels cohesive rather than remodeled one room at a time.
Could include:
For older homes, a full remodel is often the best opportunity to address systems that may no longer meet current needs.
Could include:
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Once the layout and systems are in place, the design comes together through coordinated materials and finishes that create a consistent look throughout the home.
Could include:
Construction time depends on scope, but typical working timelines after the necessary approvals and materials are ready may be approximately:
Bathroom remodel: 3–5 weeks
Kitchen remodel: 6–10 weeks
Full home remodel: approximately 4–8 months
ADU: approximately 12 months including planning, permitting and construction
Custom home: approximately 18 months including planning and permitting, depending on complexity
Projects involving substantial structural changes, extensive plan review, custom materials or additional approvals may require more time.
Corona del Mar is part of the City of Newport Beach, which means applicable residential remodeling and construction projects go through Newport Beach’s planning, building and permitting processes.
The City provides online plan-check applications specifically for residential new construction and residential additions/alterations, while simpler single-scope work may qualify for other permit processes. The City specifically notes that its Express Permits are not intended for remodels requiring multiple permits and plan review.
Depending on your property’s location and proposed scope, the project may involve:
Building permits
Electrical, plumbing and mechanical permits
Structural plans and engineering
Planning or zoning review
Coastal requirements where applicable
Addition or alteration plan review
Demolition permits
Public right-of-way or encroachment requirements for certain work
This is particularly important in coastal communities because the approval path isn’t identical for every property or project. Newport Beach planning records show that qualifying residential remodels, additions and new homes can involve a Coastal Development Permit, depending on the property’s location and scope.
At Kol & Co., we help identify these requirements during planning so the design and construction scope can be coordinated around the property rather than treating permitting as an afterthought.

We discuss your property, goals, priorities, desired scope and approximate budget so we can understand what you're trying to accomplish.

We develop the layout and design direction while working through materials, finishes and the details that affect the construction scope.

When required, we coordinate plans, engineering and permit documentation before construction begins.

Our team manages scheduling, trades, materials and day-to-day construction while keeping you informed throughout the project.

We review the completed work with you, address remaining details and prepare the project for handoff.
Kol & Co. serves homeowners throughout Corona del Mar, Newport Beach, Newport Coast, Costa Mesa and surrounding Orange County communities, providing kitchen remodeling, bathroom remodeling, full home renovations, ADUs and custom home construction.
Whether you’re considering a kitchen or bathroom remodel, reworking an outdated floor plan, renovating the entire home, adding living space or planning a custom build, the best place to start is by understanding what’s possible for your property.
Tell us what you’re considering and we’ll help you determine the next steps.
Costs depend heavily on scope and finish level. As a general planning range, kitchens may begin around $40,000–$70,000+, bathrooms around $25,000–$40,000+, while extensive full-home renovations can reach $200,000–$500,000+.
It depends on the work. Cosmetic improvements such as painting and certain finish replacements may not require a building permit, while structural changes and many plumbing, electrical and mechanical alterations do. Corona del Mar properties fall under the City of Newport Beach’s applicable building and planning requirements.
Corona del Mar is within Newport Beach, so applicable building permits and plan checks are handled through the City of Newport Beach.
Not every remodel requires one. Requirements depend on the property’s location and proposed scope. Certain development within the coastal zone can require additional coastal review, so this should be evaluated during planning rather than assumed.
Yes. Kol & Co. operates as a design-build contractor, allowing design, planning and construction to be coordinated through one team.
Yes. Depending on the project, we coordinate design, plans, engineering and permit documentation as part of the overall construction process.
Start by telling us about the property, what you’d like to change and your approximate project goals. From there, we can evaluate the scope and determine the appropriate next steps.