Unlock Your Property’s Potential with Expert Architectural & Structural Design Services in Los Angeles
Transform your lot into a high-value property with our comprehensive architectural design services in Los Angeles. Whether you’re planning to build an Accessory Dwelling Unit (ADU), split your lot, or remodel your home, SMS Design and Engineering provides tailored solutions that streamline the process from concept to permit approval.






Our Services
Maximizing Your Property’s Potential
Lot Splitting & SB9 Development
Legally divide your single-family lot into two separate properties, increasing its value and development potential.
Structural Design & Engineering
Our team ensures your structure is both safe and compliant, handling all structural design services in Los Angeles with expertise.
Home Remodeling Services
Whether upgrading your kitchen, expanding your living area, or modernizing your entire home, we turn your ideas into reality with a seamless process.
New Construction & Custom Home Design
From modern residences to multi-unit dwellings, we create fully customized home designs that align with your vision and meet all regulatory..
Building Permits & Expedited Approvals
We handle building permits services in Los Angeles, ensuring compliance with all zoning and city regulations for a hassle-free approval process.
3D Rendering & Visualization
Experience your project before construction begins with our 3D rendering services in Los Angeles, allowing you to visualize every detail…..
Accessory Dwelling Units (ADUs)
Attached ADU Services in Los Angeles
Expand your home with an integrated living space that boosts functionality and rental income…..
Why Choose
SMS Design and Engineering?
At SMS, we provide more than just blueprints. Our end-to-end service includes everything from architectural planning to permit approvals, ensuring a smooth and efficient process. What sets us apart?
Fast-Track Permitting
We navigate the Los Angeles building permit process swiftly to keep your project moving.
Unbeatable Pricing
Transparent, competitive pricing with no hidden fees.
Local Expertise
Extensive experience working with jurisdictions across Los Angeles County, Orange County, and beyond.
Precision & Quality
Our designs blend aesthetics with structural integrity, ensuring lasting value.
Ground-up ADU construction
We prioritize speed without cutting corners. We know that time is crucial, which is why we’re committed to fast-tracking your permits while maintaining the highest standards of quality and craftsmanship.
- Attached and detached ADUs
- Garage transformations
- Complete remodels
- New single-family homes
- Single and multi-story additions
- Expert structural design and analysis
At SMS, we don’t just meet expectations—we exceed them. Your project is our priority, and we work relentlessly to ensure it’s done right, on time, and within budget.
Why Choose Us
When you partner with SMS Design and Engineering, you're choosing a team that streamlines the complex permitting process, making your project seamless from start to finish. We take care of everything—architectural design, structural calculations, Title 24 compliance, and city approvals—so you can focus on your vision while we handle the details.
What makes us different?
We prioritize speed without cutting corners. We know that time is crucial, which is why we’re committed to fast-tracking your permits while maintaining the highest standards of quality and craftsmanship.
Whether you’re building an ADU from the ground up, converting a garage, or expanding your home with a new addition, we bring a wealth of experience and precision to every project:
Ground-up ADU construction
We prioritize speed without cutting corners. We know that time is crucial, which is why we’re committed to fast-tracking your permits while maintaining the highest standards of quality and craftsmanship.
- Attached and detached ADUs
- Garage transformations
- Complete remodels
- New single-family homes
- Single and multi-story additions
- Expert structural design and analysis
At SMS, we don’t just meet expectations—we exceed them. Your project is our priority, and we work relentlessly to ensure it’s done right, on time, and within budget.
Get Started Today
Take the first step towards unlocking your property’s full potential. Call us at (818) 564-6609 or fill out the form below to receive a free project evaluation and quote.
Let SMS Design and Engineering turn your vision into reality with top-tier architectural and structural design services in Los Angeles. Whether you’re building from the ground up or enhancing your existing space, we’re here to help every step of the way.
Local Jurisdictions Experiences
SMS Design and Engineering has successfully completed projects in the following jurisdictions in California and Other States
- - Los Angeles City (LADBS)
- - Los Anegeles County
- - Santa Monica
- - West Hollywood
- - Long Beach
- - Beverly Hills
- - Malibu
- - Burbank
- - Glendale
- - Pasadena
- - Culver City
- - Torrance
- - Inglewood
- - Simi Valley
- - Compton
- - El Monte
- - Rancho Cucamonga
- - Hermosa Beach
- - Redondo Beach
- - Calabasas
- - La Habra Heights
- - Villa Park
- - Santa Ana
- - Thousand Oaks
- - Oxnard
- - Lancaster
- - Temple City
- - Costa Mesa
- - Altadena
- - Bell Flower
- - San Bernandino County
- - Los Alamitos
- - San Jose
- - San Diego
- - Chula Vista
- - Alameda
- - Spring Valley
- - Mission Viejo
- - San Bruno
- - Colton
- - Lafayette
- - Sobrante
- - Redwood City
- - Tracy
- - Florida
- - Texas
- - Arizona
- - Washington
Testimonials
"I hired Seyed to write both the architectural plans and structural engineering plans for a small addition to my home in NorCal. There was a lot of iteration required, largely because I missed some aspects of the existing structure, and Seyed was very efficient in revising the plans at each step. The quality of the plans was excellent as well and Seyed was accommodating with my many requests for changes. I would absolutely hire him again for any similar work."
Lafayette, CA
"This gentleman was top class, an absolute pleasure to have worked with over the years. Always on time, always responsive and professional. Even during the time of COVID, this gentleman didn't miss a beat. Sure, there were other clients, but I could have never known based on the steadfast service and dedication. Top marks and my eternal gratitude for the reassuring experience of knowing people such him still exist. It has been a profound honor and pleasure."
San Francisco, CA
"Seyed is a total pro and man of his word. The city asked for far too many, sometimes very petty, changes during the course of our plan submission process and seyed skillfully negotiated with and satisfied all of their concerns. I recommend his services to anyone. You can not do better."
Hermosa Beach, CA
"I would definitely recommend Seyed to anyone looking to build a home or due an addition. His knowledge & service have been extremely helpful! I would gladly use him again in the future."
San Diego, CA
"Love Seyed. Love the work. Great person. Great job. Thank you so much for your patience and working with me. Will work again together."
San Diego, CA
"I have worked with many architects, engineers and draftsmen. This processes was extremely easy."
Los Angeles, CA
"Fast. Easy to work. Good communications"
Santa Monica, CA
"There are not enough words to praise Seyed. He is timely, professional, experienced, talented and goes beyond to get your project approved. He took the headache out of getting a permit. He advocated on our behalf using his vast knowledge of engineering to put together a layout that we wanted and was successful in getting it approved despite the city initially blocking certain aspects of it. He is attentive and responsive to our numerous and unending questions and concerns. He looks after your project with a vested interest. I could go on and on about how much we appreciated working with him. We will be recommending him to all."
Los Angeles, CA
"Good job Seyed. Look forward to another opportunity to work with you. Thanks."
Challenge-Brownsville, CA
"Seyed did a great job drafting the plans to our remodel. He’s prompt, communicative and easy to work with."
Los Angeles, CA
Seyed Safavian did awesome work for me under tight deadlines. Seyed also gave me great advice save me time and money"
Redmond, WA
"Professional and looking out for my best interests."
El Cajon, CA
"Seyed was excellent to work with."
Philomath, OR
Frequently Asked Question
The timeline for permit approval depends on the complexity of your project and the specific requirements of your local jurisdiction. However, at SMS Design and Engineering, we specialize in expedited building permit services in Los Angeles, streamlining the process to get your approvals as quickly as possible.
Accessory Dwelling Units (ADUs) offer multiple advantages, including:
✔ Rental Income: Generate passive income by renting out your ADU.
✔ Increased Property Value: Boost your home’s market worth with a legal, permitted unit.
✔ Flexible Living Space: Create a guesthouse, home office, or multigenerational living solution.
✔ Affordable Housing Solution: ADUs help homeowners and communities meet growing housing needs.
Yes! Our team provides a free consultation to evaluate your property’s potential for lot splits, ADUs, home remodeling, and new construction in Los Angeles. We’ll guide you through the process and offer expert recommendations tailored to your needs.
Start your SB9/ADU Design today and be ready for construction in a few months.
Call us at (818)564-6609
Fill out the form below
We will review your project and provide a quote in a day. We will contact you to discuss all the potentials of your property. So you can make a decision to get the most out of your lot based on your needs.