Santa Monica Elite ADU Builder- Professional Installation, Replacement, & Repair

At Santa Monica Elite ADU Builder, we guide you through each step with a clear plan and attention to detail. We specialize in designing and constructing ADUs that meet local zoning rules while matching your property’s style and needs.


Our team handles every stage, from initial design and permits to construction and finishing touches. We focus on practical layouts, efficient use of space, and durable materials that fit your budget. You get a functional, well-built ADU without unnecessary delays or confusion.


Whether you want a rental unit, a home office, or space for family, we create solutions that work for your property and lifestyle. With our knowledge of Santa Monica’s building codes and our streamlined process, you can move forward with confidence.

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Our ADU Construction Services

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Custom ADU Design

We create floor plans that match the size of your lot and the way you plan to use the space. Our design process includes site evaluation, layout planning, and material selection.


We work with you to decide on room sizes, storage options, and natural light placement. We also account for plumbing, electrical, and HVAC needs during the planning stage to reduce costly changes later.


Our designs follow California ADU regulations, including height limits and setback rules. We provide detailed drawings for city approval and use 3D renderings so you can see the layout before construction begins.

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Garage Conversion Solutions

We convert existing garages into fully functional living spaces that meet safety and zoning standards. This includes structural reinforcement, insulation upgrades, and utility installations.


We inspect the current structure to check for foundation cracks, roof issues, or termite damage. If repairs are needed, we address them before starting the conversion.


Our team manages all permit applications with the City of Santa Monica. We ensure the converted space has proper ventilation, waterproofing, and energy-efficient systems to comply with California Title 24 energy codes.

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Detached ADU

Our Detached ADU services deliver stand-alone living units that offer complete privacy and flexibility on your Santa Monica property. We specialize in custom designs that optimize lot size, setbacks, and local zoning requirements while enhancing outdoor flow and usability.

From modern studios to spacious one-bedroom or two-bedroom layouts, we manage the entire process—from site planning and permits to construction and final inspections.

Detached ADUs are ideal for generating rental income, housing family members, or creating a private home office or guest suite. Built with premium materials and energy-efficient systems, our detached units add long-term value and versatility to your property.

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Attached ADU

Our Attached ADU services provide a seamless way to expand your existing home by integrating a fully functional living space within the current structure. We handle everything from zoning analysis and architectural design to permitting and construction, ensuring full compliance with Santa Monica and California ADU regulations.

Attached ADUs are ideal for homeowners seeking cost-effective square footage, faster build timelines, and efficient use of existing utilities.

Each unit is thoughtfully designed to maximize privacy, natural light, and energy efficiency while maintaining architectural harmony with the main residence. The result is a high-quality living space perfect for rental income, multigenerational living, or long-term property value growth.

ADU Design and Planning Process

Site Assessment and Consultation

We begin by visiting the property to evaluate its layout, access points, and utility connections. This helps us determine the best location for the ADU and identify any space or zoning limitations.


During the consultation, we review your goals, budget, and timeline. We also check Santa Monica’s ADU size limits, setback rules, and parking requirements.


We use this information to outline feasible design options. This step ensures the project is realistic before moving into the design phase.

Architectural Design Services

Our design team creates floor plans that balance function, comfort, and compliance with city standards. We focus on efficient layouts that make the most of the available space while maintaining privacy and natural light.


We prepare detailed drawings that include dimensions, materials, and structural elements. These plans are tailored to your property’s measurements and the city’s ADU guidelines.


We also offer 3D renderings so you can see how the finished unit will look. This helps confirm the design before we move forward with permits.

Permit Acquisition Assistance

Santa Monica has specific requirements for ADU permits, including building, electrical, plumbing, and sometimes coastal review. We handle the preparation and submission of all necessary documents to the city.


Our team communicates with local planning and building departments to address questions or revisions. This reduces the risk of application rejection or delays.


We track the permit process from start to approval, keeping you informed of each step. In managing this process, we help ensure construction can begin without unnecessary interruptions.

Santa Monica ADU Zoning and Regulations

Local Zoning Requirements

Santa Monica’s zoning rules control where and how we can build an ADU. Most residential zones allow ADUs, but the placement, size, and design must match local code.


Setback rules often require at least 4 feet from the side and rear property lines. Height limits vary but typically range from 16 to 25 feet, depending on the type of ADU.


Parking requirements may apply unless the property is near public transit or in certain exempt zones. We also must ensure the ADU does not exceed the city’s maximum lot coverage or floor area ratio.


Design review may be required for certain neighborhoods, especially in historic districts. This can affect exterior finishes, roof style, and window placement to maintain neighborhood character.

Compliance With California ADU Laws

California law sets baseline ADU regulations that all cities, including Santa Monica, must follow. These laws override local rules that are more restrictive than state standards.


State law allows at least one ADU and one Junior ADU per lot in single-family zones. It also limits local review timelines to 60 days for complete applications.


We follow state size minimums, which permit detached ADUs up to 1,200 square feet, regardless of local limits, unless safety or utility constraints apply.


Owner-occupancy requirements are not allowed for most ADUs approved between 2020 and 2030. This flexibility makes it easier for property owners to rent or use the unit as needed.

Financing and Cost Transparency

Detailed Cost Estimates

We start with a thorough site assessment to understand the scope of work. This includes checking zoning rules, utility connections, and structural requirements.



Our estimates break down costs into clear categories:

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*Actual costs vary by project.



We also provide a timeline with cost milestones so you know when payments will be due. This prevents surprises and helps you manage cash flow during construction.

Flexible Financing Options

We offer several financing paths to make your ADU more affordable. This includes partner programs with local lenders who understand ADU projects in Santa Monica.


Options may include:


  • Home equity loans for lower interest rates
  • ADU-specific renovation loans with extended terms
  • Staged payment plans tied to project phases


We help you compare terms, interest rates, and repayment schedules. Our team works directly with lenders to streamline the approval process and reduce delays.


By tailoring financing to your needs, we make it easier to start construction without waiting for full funds upfront. This approach allows more homeowners to move forward with their ADU plans sooner.

Hear it from our happy clients!

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“They helped us choose materials that fit our budget without lowering quality. Communication was consistent, and we always knew what was happening next.”

Frances Wagner
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“We appreciated how clearly the team explained each step of the process. They stayed on schedule and kept the site clean. The finished ADU matched the design we agreed on.”

Maurice Smith
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“Our experience was smooth from start to finish. We liked how they handled all the permits and inspections. The workmanship met our expectations.”

Matilda Ellis

ADU Construction Frequently Asked Questions

How long does the ADU building process typically take with Santa Monica Elite ADU Builder?

Most ADU projects take 6 to 12 months from initial planning to final inspection. The timeline depends on design complexity, permit approval speed, and site conditions. We provide a schedule at the start and update it as the project moves forward.

Can Santa Monica Elite ADU Builder assist with design and permits for an ADU project?

Yes, we assist with design and permits for ADU projects. We handle the full design process, including architectural plans and engineering. We also prepare and submit permit applications to the city, addressing any feedback from local planning departments.

What are the average costs associated with building an ADU in Santa Monica?

In Santa Monica, most ADUs range from $150,000 to $350,000. Costs vary based on size, finishes, and site work. We provide detailed estimates after reviewing the property and design goals.

Does Santa Monica Elite ADU Builder offer any warranties or guarantees on their ADU constructions?

Yes, we offer a workmanship warranty that covers construction defects for a set period after completion. Manufacturer warranties on materials and appliances also apply. We explain coverage terms before the project begins.

Can Santa Monica Elite ADU Builder assist with design and permits for an ADU project?

Yes, we assist with design and permits for ADU projects. We handle the full design process, including architectural plans and engineering. We also prepare and submit permit applications to the city, addressing any feedback from local planning departments.