Services · Hawthorne

New ADU Design & Build in Hawthorne, CA

We design and build new attached or detached accessory dwelling units, handling planning, permitting, and construction through final inspection.

Build the Extra Space Your Family Actually Needs

An accessory dwelling unit can change how your whole property works — a home for aging parents, a private suite for an adult child, or a rental that helps cover the mortgage. At Jupiter Builders & Roofing, our New ADU Design & Build in Hawthorne, CA service takes you from first sketch to final inspection, handling the planning, permitting, and construction so you can picture the finished space instead of the paperwork. Whether you want a unit attached to your existing home or a standalone structure in the backyard, we help you get it right the first time.

Why choose Jupiter Builders & Roofing

  • We stay with you after the work is done. You've probably heard the horror stories about contractors who disappear once the check clears. That's not us. If something needs attention down the road, we'll be there to make it right — plain and simple.
  • We're local, and we plan to stay that way. Our company was started here and our family lives here, so your project isn't a one-off job in a town we'll never see again. We care how the finished ADU reflects on us in our own community.
  • We keep you in the loop the entire time. Before any work begins, we walk you through every part of the plan in detail, answer your questions without the runaround, and give you clear ways to reach us whenever you need to.
  • We inspect your property in person first. Instead of guessing from a photo or a quick phone call, we come out, look at your site, and understand the full scope before we ever hand you a number. You get a written proposal with your options laid out so you can decide with confidence.

Our New ADU Design & Build process

Every property is different, so we treat your ADU as its own project from day one. Here's how we typically move from idea to move-in ready.

  1. On-site consultation. We visit your Hawthorne property, talk through how you want to use the new space, and evaluate your lot, setbacks, utilities, and existing structures.
  2. Design and feasibility. We develop a design that fits your goals and your budget, whether it's an attached addition or a detached backyard unit, and confirm what's realistic for your site.
  3. Written proposal. You receive a clear, detailed proposal that spells out the plan, the options, and the scope — no vague estimates or surprises buried in the fine print.
  4. Permitting and planning. We handle the permit submissions and coordinate the approvals so you don't have to navigate the city process alone.
  5. Construction. Our crew builds the ADU to exacting standards, and we schedule the work to disrupt your daily routine as little as possible.
  6. Final inspection and walkthrough. We see the project through final inspection and walk the finished unit with you, so you know exactly what you're getting and how everything works.

Throughout all of it, we keep communication open. You'll always know what stage your project is in and what comes next.

Serving Hawthorne, CA and nearby

Jupiter Builders & Roofing proudly provides New ADU Design & Build in Hawthorne, CA and the surrounding communities across Los Angeles and Orange County. As a local general contractor, we understand the neighborhoods here, the way lots are laid out, and what it takes to add living space that fits your property and your family's needs. From the first in-person visit to the final inspection, you'll be working with people who are from this area and invested in doing right by it. If you've been thinking about adding an attached or detached ADU — for family, for rental income, or just for room to grow — we'd love to talk it through with you.

A new ADU is a significant project, and it deserves a builder who treats your home and your time with respect. We focus on complete, well-managed construction rather than quick fixes, so the space you add is one you can rely on for years to come. We'll be upfront about what your project involves, give you honest options, and stand behind the work after it's finished.

Call us today at (310) 954-2008 for a free estimate and an in-person look at your property. We'll answer your questions, explain your options clearly, and help you take the first step toward the extra space you've been planning. We look forward to hearing from you soon.

FAQ

Questions, answered

Straight answers about Jupiter Builders & Roofing. Don't see yours? Give us a call.

Call (310) 954-2008
What does your ADU design and build service include?

We handle the whole project from start to finish, including planning, permitting, construction and final inspection. Whether you want an attached or detached unit, we manage every stage so you have one team responsible for the finished space. Call us at (310) 954-2008 to talk through what you have in mind.

Do you build both attached and detached ADUs?

Yes. We construct new attached ADUs that connect to your existing home as well as standalone detached units on your property. During our in-person visit we look at your lot, layout and goals, then put together a written proposal with your options so you can decide what fits best.

Which areas do you serve for ADU construction?

We are a local company based here in Southern California, and we build ADUs throughout Los Angeles and Orange County. Being from here means we know the area and stay reachable throughout your project. Reach out at (310) 954-2008 to see if your address is within our service area.

Do you handle the permitting for a new ADU?

We do. Our team manages the permitting process alongside the planning and construction, and we keep you informed at every step. We explain each part of the solution in detail and give you several ways to contact us whenever a question comes up.

Do you offer small home additions or remodels instead of a full ADU?

No. We focus specifically on new attached and detached ADU construction, along with complete roof replacements. We do not take on minor repairs, handyman work or general home remodeling, which lets us focus our attention on the projects we specialize in. Call us today to discuss your ADU plans.

What Our Customers Say

5.0 average from 16 reviews on Google

  • Jeffrey Lei
    ★★★★★

    We had our roof remodeled by Jupiter Roofing Company, and they did the wonderful job. They were professional, exceeded our expectations, and left everything clean afterward. We are very happy with the work and highly recommend them! Extra thanks to Wully for all the hard work!

  • bilal jesri
    ★★★★★

    I just want everyone to know that I am extremely pleased with the work and quality of service I received! I must say, Ali is extremely professional, helpful, and friendly!! Ali went above and beyond to make sure we had everything we needed and made sure to always check up on us and help whenever need. I will be recommending them to anyone who needs a roofing service!

  • Ryan Inouye
    ★★★★★

    Great company to work with, after much debate and negotiations with a few other competitors i landed on jupiter. The process and communication were extremely better then previous contractors i have used in the past and will look to them on future home renovations. Masud was my point of contact and returned all my phone calls and answered late at night sometimes for some follow up questions. I was on a strict deadline for a graduation party to be held here and they actually finished a day ahead of schedule. Great team to work with.

  • Alex
    ★★★★★

    Mr. Ali and his team did a great job on our new white roof. The workmanship was excellent, took 4 days like they said and the finished product looks amazing. Highly recommend this team

  • jason bahret
    ★★★★★

    Jupiter Roofing did an amazing job on rebooting my house. We had an artificial slate installed on our roof and they had the expertise in doing the job right. Their detail, efficiency and easy communication with the staff was truly outstanding! I have many times since they have finished, the job recommended Jupiter Roofing to others looking to have their roof redone. I highly highly recommend them! Jason bahret.

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Need new adu design & build? We're ready to help.

Free estimate, written quote, no obligation — and a straight answer about what your home in Hawthorne actually needs.

  • Licensed, Bonded, and Insured. General Liability and Workers’ Compensation Coverage Maintained As Applicable.
  • California Contractors State License Board (CSLB)
  • Serving Torrance, Redondo Beach, Manhattan Beach, Hermosa Beach
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