Custom ADU Construction Services

Beautifully Built ADUs To Expand Your Living Space!

01
We help you choose

The Perfect Balance of Quality, Cost, and Long-Term Value

Building an ADU is a significant investment — whether you’re creating a rental unit, guest house, or space for extended family. That’s why it’s crucial to partner with an experienced and dependable team that can help you navigate every step of the process. We’re committed to helping you achieve the ideal balance between quality construction, smart design, and budget control.

If you’d like to learn more about our ADU construction services in Los Angeles County, Orange County, Riverside County, San Bernardino County, and Ventura County, CA, please call us at (424) 452-2222. We’d be happy to discuss your vision and how we can bring it to life!

Fast-Track ADU Construction

Move-In Ready ADU in 35-45 Days

Our fast-track ADU program is designed for homeowners who want to maximize their property’s potential — quickly and efficiently. Ideal for garage conversions or detached units with standard layouts, this streamlined process allows us to deliver fully finished ADUs in as little as 35–45 days.*

*Timeline depends on permitting and inspection schedules in your area

Custom ADU Solutions

Tailored Layouts & Fully Personalized Designs

Our custom ADU construction services are perfect for homeowners looking to create a truly unique living space. These projects go beyond standard layouts and include changes to the floor plan, custom architectural elements, upgraded appliances, and adjustments to plumbing, electrical, and HVAC systems — all tailored to your specific vision and needs.

Whether you’re building a luxury guest suite, a private home office, or a multi-functional rental unit — we’ll help you design an ADU that maximizes comfort, functionality, and value.

02
ADU INSPIRATION

Create a Beautiful Space That Feels Like Home

An ADU isn’t just an addition — it’s a chance to build something inspiring, practical, and deeply personal. Whether it’s a cozy retreat for loved ones, a private workspace, or a stylish rental unit, your ADU should reflect your lifestyle and values.

What inspires your ideal space?

Traditional

Contemporary

Modern

See the 7 Most Popular ADU's Design Styles of 2025

Download our free brochure to discover our style

03
Inspiration Gallery

The process of building one ADU

Many construction stages remain hidden, but they are like building a full-fledged house. So, take a look at the main stages of one of our ADU projects from 2025.

ab-1

PROJECT RECAP

  • ADU CONSTRUCTION COST $120K-250K
  • OPTIONS Custom kitchen & bath, vaulted ceilings, smart home features
  • SIZE 400–1,200 sq.ft.
  • LAYOUT 1-bedroom ADU with open-plan living area and full kitchen

“We’ve built a private ADU perfectly tailored to Svetlana’s lifestyle — complete with natural light, extra storage, and modern finishes. The result? A fully independent living space that blends comfort, style, and functionality.”

icon

Matt Poulter

foreman of RTS LLC

04
PRICE QUOTE

How Much Does It Cost to Build an ADU in California?

ADU project costs vary based on many factors. Fill out the questionnaire below, and we’ll provide an accurate price quote and timeline for your project.

Find Out If We're the Right Fit

COST?

No cost

WHAT THIS IS

15-30 min call


    Finance Your Project

    Start your dream project today with easy, affordable financing through our partner bank, GreenSky.

    • 12 months same-as-cash – No interest, no payments for 12 months
    • 6.99% interest – Fixed for 120 months

    A New ADU the Ultimate Home Value Booster

    According to the National Association of Realtors, adding an ADU is one of the most impactful ways to increase your property’s market value and utility. Whether used as a rental, guest house, or multi-generational living space — it’s a smart long-term investment.

    • Add Value to Your Property Building a well-designed ADU can increase your home’s value by 20–30%, depending on location and use potential (source: National Association of Realtors & local market data).
    • Low, affordable payments Reduce your out of pocket cost with financing. Our bank is ready to get you approved quickly.
    05
    our process

    A better way to get a stunning ADU

    Discover

    2-3 hours meeting
    Site visit, goals, budget discussion

    Discover

    01

    Design

    Custom floor plan &
    3D visualization*
    materials, etc.

    Design

    02

    Approval

    Permitting, engineering,
    city coordination.

    Approval

    03

    Build

    Full-scale construction &
    final inspection

    Build

    04

    RTS mission & values

    Your ADU Should Reflect Your Lifestyle and Vision
    At Right Technique Solutions, we believe that building an ADU isn’t just a construction project — it’s a meaningful expansion of your home and the way you live. Whether you’re creating space for family, generating rental income, or planning for the future, we’re here to bring your vision to life.

    At Right Technique Solutions, we combine thoughtful planning, creativity, expert craftsmanship, and decades of experience to deliver ADUs that are both beautiful and functional. Our clients are families, and we take pride in building spaces that serve their needs for years to come

    Serving Los Angeles county, Orange county, San Bernardino County and surrounding cities

    More Than only ADU..

    In addition to being your local ADU construction experts, we offer a full range of home renovation and structural improvement services. As a licensed full-service contractor, we can assist with everything from foundation upgrades to exterior finishes — ensuring your entire property works together seamlessly.

    Our services include (but are not limited to):

    FAQs

    Here you’ll find a compilation of the most frequently asked questions. If there’s something you want to know which isn’t here, please send an email to info@rts4u.com

    How Much Does an ADU Cost?

    The cost depends on the type (garage conversion vs. detached), square footage, finishes, and site conditions. On average, ADU construction ranges from $100,000 to $250,000. We accommodate a wide range of budgets and provide clear, upfront estimates after a brief consultation.

    How Long Does It Take to Build an ADU?

    Standard ADU builds take 3 to 5 months, including permitting, construction, and inspections. Fast-track projects (with pre-approved plans) may be completed in as little as 8–10 weeks, depending on your city’s processing time.

    Is Building an ADU Worth It If I’m on a Budget?

    Absolutely. ADUs provide long-term rental income, add livable space, and significantly increase property value. We offer budget-friendly design options and flexible financing plans to help you get the most out of your investment.

    Do You Offer Design and Planning Assistance?

    Yes! Whether you need help visualizing layouts or working within site constraints, our design team will help you explore your options, optimize square footage, and create a custom ADU that fits your goals and local zoning requirements.

    Do You Handle Permits and City Approvals?

    Yes, we manage the entire permitting process — including drawings, applications, and inspections — to ensure your ADU is 100% compliant with local California building codes.

    What Kind of Warranty Do You Provide?

    All of our ADUs come with warranties on both materials and workmanship. We stand behind the quality of our builds and want you to feel confident your new ADU will serve you for decades to come.
    Have another questions?

    Our Work and Customer Satisfaction Speak for Themselves

    See What Our Happy Customers Say About Their Experience With Us!
    "Always professional and easy to work with." — Sharon H., Redondo Beach, CA

    RTS receives a 5-star rating for our home remodel project! The entire team is extremely knowledgeable, professional, and easy to work with. They came highly recommended and have completed several kitchen and bath remodels in our neighborhood. Our project involved extensive exterior repairs, and we couldn’t be happier with the results. I highly recommend Right Technique Solutions for your next remodel!

    "Fantastic service by every definition!" — Craig B., Hermosa Beach, CA

    RTS4U.com provided fantastic service in every way! They were efficient, professional, and exceeded our expectations. I will definitely use them again for future projects.

    "We couldn’t be more happy..." — Sheena S., Palos Verdes Estate, CA

    We couldn’t be more thrilled with the service from RTS LLC. Not only did they complete our projects as promised, but their communication and professionalism were outstanding from start to finish. They went above and beyond to keep us informed and address all of our requests. I’ll definitely use them again for any future needs.

    "From design to completion, we had a great experience." — Kelly R., Long Beach, CA

    We did a complete remodel and addition with guys from RTS, and from design to completion, it was an amazing experience. The quality of work was top-notch, and the team was professional, responsive, and on time, with excellent communication throughout. We loved the whole process and are thrilled with our new home. We would definitely do it all again and have recommended them to others for their dream homes!

    New ADU projectup to $3000 OFF!

    Submit Your request for a discount Below. You can also use this coupon to pay for a part of the kitchen


      rts design

      Our Promise

      Right Technique Solutions is here to help your family plan, design, and install the bathroom of your dreams. We specialize in staying on budget and completing projects on time, ensuring your vision becomes reality.

      Ivan Pidzhakov
      Construction manager RTS LLC


        Drop us a line

        We are professionals at staying on budget, and completing projects on time.


          Get In Touch

          541 Melville Ave, Palo Alto, CA 94301,

          Email.Exemple@gmail.com

          Phone:  +012.345.6789

          Work Inquiries

          Email.Exemple@gmail.com

          Phone: +012.345.6789