ADU (Accessory Dwelling Unit) In Costa Mesa, CA

Costa Mesa stands as a jewel in the heart of Orange County, priding itself as a vibrant, cosmopolitan city known for its trendy boutiques and artistic flair. It's renowned for the South Coast Plaza, one of the nation's premier shopping destinations, and the Costa Mesa Playhouse which showcases local talent in captivating theatrical productions.

Rich in cultural tapestry, Costa Mesa is also a hub for an ever-evolving real estate market that captivates potential homeowners. A distinct characteristic of Costa Mesa’s real estate landscape is its blend of classic suburban homes with contemporary architecture. Given its strategic location, proximate to both the beach and urban centers, Costa Mesa becomes an ideal locale for developing both attached and detached Accessory Dwelling Units (ADUs), undertaking renovation projects, and more.

Building Permit Application Process in Costa Mesa

Applying for a building permit in Costa Mesa involves several steps, including document submission, plan review, and fee payment. Below is a detailed guide to the process, associated fees, and estimated timelines.

1. Determine Permit Type and Requirements

First, identify the scope of your project to determine the necessary permits and documentation. Costa Mesa offers various permit categories, such as:

Plan Check Services: For major or minor projects requiring planning review before submission.
Building Permits: For residential projects needing minimal paperwork and no plan check.
Solar Plan Check: For photovoltaic or thermal solar installations requiring approval.

Detailed submittal requirements are available on the city's Submittal Requirements page.

2. Online Application via TESSA

Costa Mesa utilizes the TESSA portal for electronic plan submission and permit applications:

Access TESSA: Visit the TESSA portal to begin your application.
Submit Application: Complete the online application, attaching all required documents.
Monitor Progress: Regularly check the TESSA portal and your email for updates.

If you require assistance with the online submission, schedule an appointment with a building technician through the city's Building Safety page.

3. Plan Review and Approval

Once submitted, your plans will undergo a review process to ensure compliance with local building codes:

Standard Review: Typically, plan checks are completed in less than five working days.
Accelerated Review: For expedited service, you can request accelerated plan check services with an outside consultant. Details are provided on the Plan Check Submittal Procedure page

4. Fee Structure

Fees vary based on project valuation and scope. Key fees include:

Building Permit Fees: Calculated based on project specifics; detailed information is available on the Building Safety page.
Construction and Demolition Waste Fees: For projects involving construction or demolition, fees are assessed based on project valuation:
- Projects up to $20,000: $160 flat fee
- Projects between $20,001 and $100,000: $160 plus $3 for each additional $1,000 over $20,000
- Projects between $100,001 and $500,000: $400 plus $2 for every $1,000 over $100,000
- Projects over $500,000: $960 plus $0.50 for every $1,000 over $500,000

For comprehensive details, refer to the Construction and Demolition Projects page.

5. Additional Considerations

Waste Diversion Compliance: Projects must divert at least 65% of construction and demolition waste from landfills.
Use of Franchise Waste Haulers: Utilizing a city-franchised hauler can waive certain project fees.
Self-Haul Permits: Contractors opting to self-haul must obtain a permit and adhere to reporting requirements.

For further assistance, contact the Building Safety Division at (714) 754-5273 or via email at

Types of construction projects we handle in Costa Mesa, CA

Accessory Dwelling Unit (ADU)
Addition & Expansion
Renovation & Remodeling
Garage Transformation
Remodeling
Fix and Flip
Commercial Projects
Tenant Improvement
3D Visualization
Financing Options

Steps to Schedule Inspections in Advance

Scheduling inspections for your Accessory Dwelling Unit (ADU) in Costa Mesa is a crucial step to ensure compliance with local building codes and regulations. Here's a step-by-step guide to help you navigate the process:
1

1. Determine Required Inspections:

Familiarize yourself with the specific inspections required for your ADU project. These may include foundation, framing, electrical, plumbing, and final inspections.

2. Schedule Inspections:

Online Scheduling: Costa Mesa utilizes the TESSA online permitting system for scheduling inspections. To schedule an inspection:
- Visit the TESSA portal: https://permits.costamesaca.gov/energov_prod/selfservice#/inspection/schedule
- Log in or create an account if you haven't already.
- Navigate to the inspection scheduling section and follow the prompts to request your desired inspection.
Phone Scheduling: If you prefer to schedule inspections via phone or need assistance, contact the Building Safety Division at (714) 754-5273.

3. Prepare for Inspection:

Ensure that the work area is accessible and that all necessary documents, such as approved plans and permits, are available on-site for the inspector's review.

4. Inspection Day:

An inspector will visit the site to assess compliance with building codes and approved plans. Be present or have a representative available to address any questions or concerns.

5. Post-Inspection:

If the inspection is approved, you may proceed to the next phase of construction.
If corrections are needed, address the issues as outlined by the inspector and schedule a re-inspection.

Additional Resources:

Inspection List: To view properties scheduled for building inspections, visit: https://permits.costamesaca.gov/energov_prod/selfservice#/inspection/todaysinspections

ADU Information: For comprehensive details on ADU regulations and guidelines in Costa Mesa, refer to: https://www.costamesaca.gov/government/departments-and-divisions/economic-and-development-services/planning/accessory-dwelling-units-adu

For the most accurate and up-to-date information, it's advisable to consult directly with Costa Mesa's Building Safety Division.

Sources

Disclaimer: The information provided on this page is intended for general guidance only and may not be complete or accurate. For the most current and precise information regarding ADU construction requirements and regulations in the City of Costa Mesa, please refer to the official City of Costa Mesa website. We strongly recommend verifying all details with the official city resources before proceeding with any ADU project.

Best time to build in Costa Mesa, CA

The current juncture presents an unparalleled opportunity for initiating construction endeavors such as Accessory Dwelling Units (ADUs), supplementary structures, and garage transformations in Costa Mesa, CA, owing to the state's decree prompting cities to support ADU developments. This period is undeniably opportune, more so with the escalating demand, which insinuates potential legislative modifications in the offing that might tighten the reins on such constructions. However, possessing sanctioned plans acts as a shield, endowing you with the liberty to advance your construction aspirations even amidst policy shifts.

Distinct from many locations, Costa Mesa boasts a plethora of properties with lot sizes that exceed the average, creating a conducive environment for additions, expansions, and ADU creations. This trait is a significant boon, especially with the surging demand for supplementary accommodation. The city's proximity to esteemed educational hubs such as Orange Coast College, Vanguard University, and its nearness to other renowned institutions in adjacent cities, intensifies the urgency for expanded housing options.

Further enhancing Costa Mesa's appeal is its harmonious blend of trendy urbanity with the tranquil charm of Orange County, making it a hotspot for a myriad of residents. The city masterfully merges the vibrancy of city life with the peaceful embrace characteristic of Orange County's environment, marking it as an enviable dwelling for a broad spectrum of individuals.

Venturing into projects like ADU construction, garage transformations, or annexing additions to current structures not only bolsters your property's value but also offers a pragmatic response to the mounting housing demand in the vicinity. Every endeavor embarked upon not only refines your space or maximizes dormant land but also significantly aids in addressing the community's pressing housing requisites.

The significance of this moment for initiating such ventures is undeniable. Moreover, monetary constraints shouldn't thwart your commitment to mitigating the housing challenge. We offer financial pathways to spur your project onwards, even when personal savings seem insufficient. Our partnered financial institutions stand ready to assist in procuring a loan, enabling you to commence your construction journey without hesitation. Seizing this timely opportunity is crucial, and we're committed to ensuring that monetary challenges are navigated, translating your construction dream into a concrete reality TODAY.