If you live in San Jose or the surrounding Bay Area, you may have noticed how much interest there is lately in accessory dwelling units, also known as ADUs. More and more homeowners are discovering the benefits of creating an extra living space on their property-whether for family members, guests, or rental income. At QuartzConstructionRemodeling, we specialize in ADU construction San Jose residents can rely on, and we take pride in guiding our clients through every stage of the process.
An ADU, short for accessory dwelling unit, is an additional small home that shares the same lot as your main house. Sometimes called “granny flats” or “guest houses,” these structures are fully functional with their own kitchen, bathroom, and living area. They can be attached to your primary home, built as a detached unit, or even created through a garage conversion.
For many homeowners, building an ADU is the perfect solution when looking to add extra space without having to purchase a larger property. Depending on the size and design, the dwelling unit can serve many different purposes, from a home office to a rental apartment.
One of the simplest benefits of an ADU is the additional storage space it provides. Whether you need room for seasonal items, hobby supplies, or belongings that don’t fit inside your main house, the extra square footage can make a big difference.
Many San Jose homeowners are looking for ways to generate passive income, and ADUs are ideal for that. Renting out your ADU to long-term tenants or short-term guests can bring in rental income and help cover your mortgage. With the housing demand in the Bay Area, a well-designed unit can provide steady earnings for years to come.
Adding an accessory dwelling in the San Jose area offers a wide range of advantages. From financial opportunities to lifestyle improvements, ADUs can be a smart choice for today’s homeowners.
One of the simplest benefits of an ADU is the additional storage space it provides. Whether you need room for seasonal items, hobby supplies, or belongings that don’t fit inside your main house, the extra square footage can make a big difference.
Many San Jose homeowners are looking for ways to generate passive income, and ADUs are ideal for that. Renting out your ADU to long-term tenants or short-term guests can bring in rental income and help cover your mortgage. With the housing demand in the Bay Area, a well-designed unit can provide steady earnings for years to come.
An ADU can help save money in unexpected ways. For example, instead of paying for assisted living facilities, some families create a comfortable living space for elderly parents right on their property. Others avoid the high costs of moving to a larger home by simply expanding their existing one.
ADUs are incredibly versatile. They can serve as a home office, guest house, art studio, or even a private retreat. For families with college-age children or young adults, an ADU offers independence while still keeping loved ones close by. The extra living space is customizable to your specific needs.
When it comes to designing and constructing an ADU in San Jose, the process involves careful planning and coordination. At QuartzConstructionRemodeling, we help you through each step:
By guiding you through the process, we make sure your future ADU is built on time, on budget, and according to your specific needs.
California has relaxed ADU regulations to encourage homeowners to build additional housing. Some key requirements include:
Every property is different, which is why there are several types of ADU builds to choose from.
A detached ADU is built separately from the main house. It’s an ideal ADU if you want full privacy and independence. Detached units often resemble small cottages or guest houses and are perfect for generating rental income.
For homeowners who want to create an ADU without taking up more yard space, a garage conversion is a popular choice. By transforming unused or underused garages into comfortable living spaces, you can maximize the property’s value while keeping construction costs relatively lower.
Finding the right contractor in San Jose is essential when it comes to building an ADU. Experience matters-constructing ADUs requires knowledge of permits, zoning laws, and the unique challenges of the San Jose area.
At QuartzConstructionRemodeling, we are proud to be considered among the trusted San Jose ADU builders. With decades of experience, we understand the complexities of designing and constructing ADUs that not only meet local requirements but also add to your home in a meaningful way. Our general contractor team handles everything, from initial design to the final walk-through.
Before you create an ADU, there are a few important factors to keep in mind:
When it comes to building, we believe every detail matters. By working closely with you, we create the perfect ADU that reflects your goals and adds lasting value to your home.
Perry Finch2025-07-18Trustindex verifies that the original source of the review is Google. We’re so happy with the work Hila and her team did on our home addition. The new space flows beautifully with the existing structure, and the quality is clear in every finish. Finished on schedule and stress-free. Joy Ruther2025-07-03Trustindex verifies that the original source of the review is Google. Working with Ohad on our full home remodel was an incredible experience. He helped us through every decision and made sure everything turned out exactly how we envisioned. The team was easy to communicate with and super detail-focused. We still can’t believe how beautiful our home looks! Ajay Mukhopadhyay2025-06-30Trustindex verifies that the original source of the review is Google. We recently worked with Quartz Construction (Owner: Ohad) for a construction project to remodel our Bathroom and we couldn’t be more pleased with the results. From start to finish, their team demonstrated professionalism, and exceptional craftsmanship. They maintained clear communication throughout the project, kept us informed of progress and any potential changes, and delivered everything on time and within budget. Their quality of work is outstanding — every detail was handled with care and precision. What stood out most was their commitment to customer satisfaction. They were responsive to our questions, respectful of our space, and ensured that the final outcome matched our vision perfectly. If you're looking for a reliable, skilled, and trustworthy construction contractor, I wholeheartedly recommend Quartz Construction ( Ohad and his team) .They exceeded our expectations in every way. Ajay debbie curley2025-06-27Trustindex verifies that the original source of the review is Google. I had a fantastic experience working with Quartz Construction And Remodeling. Ohad Maloul the owner was professional communicative and a pleasure to work with from start to finish. His team repaired and painted my backyard pergola and the quality of their work was truly excellent. They were always on time, friendly and responsive to any questions I had throughout the process. I appreciated the clear communication and attention to detail. I’m excited to work with Ohad and his team on future projects and highly recommend them to anyone looking for reliable, high-quality construction or remodeling services. Harry Lewis2025-06-26Trustindex verifies that the original source of the review is Google. Hila managed our balcony addition project with care and precision. The design complements our home perfectly, and the build quality is outstanding. She communicated every step and made the whole process easy. We’re thrilled with the result! Qi Lei2025-06-25Trustindex verifies that the original source of the review is Google. I had the chance to work with Ohad and his construction team on a recent home project, and I was really impressed. Ohad is professional, easy to communicate with, and genuinely cares about the quality of the work. The crew showed up on time, kept the work area clean, and finished the job on schedule. It’s hard to find contractors who are reliable and transparent these days, but Ohad delivered on everything he promised. Would definitely recommend if you’re looking for someone who takes pride in their work and keeps things straightforward. Boris Tyron2025-06-24Trustindex verifies that the original source of the review is Google. We’re so happy with the work Quartz Construction did on our backyard. Ohad’s team designed and built a gorgeous deck and patio that turned the area into a dream space. The quality and detail are fantastic. Highly recommend! Gloria Collin2025-06-18Trustindex verifies that the original source of the review is Google. Quartz Construction built the most beautiful pergola in our backyard, thanks to Ohad. He was easy to work with, listened to our needs, and delivered a structure that’s both stylish and durable. We now have a shaded space where we can relax and entertain guests. Dustin Walsh2025-06-17Trustindex verifies that the original source of the review is Google. They built a beautiful, durable pergola that fits our outdoor space perfectly. Hila paid close attention to both style and quality. We now have the perfect spot for lounging, gatherings, and enjoying every season. Paul Wilins2025-06-09Trustindex verifies that the original source of the review is Google. We feel incredibly lucky to have worked with Hila. She made the ADU process simple and stress-free, handling everything with care and professionalism. The final space is perfect—efficient, elegant, and exactly what we hoped for. Big thanks to her and the whole crew!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
If you are ready to add an ADU on your property, we are here to help. At QuartzConstructionRemodeling, our San Jose team has decades of experience in constructing ADUs with precision and care. We combine design-build expertise, craftsmanship, and a deep understanding of the Bay Area housing market to deliver outstanding results.
Whether you’re considering a detached unit, a garage conversion, or an attached ADU, we can guide you through the entire process. From evaluating your property and securing permits to finishing the final touches, we’re committed to helping San Jose homeowners create the perfect solution for their specific needs.
Get in touch with us today to discuss your ADU project and let’s begin designing and constructing the ideal ADU for your property. Together, we’ll create an accessory dwelling that not only provides extra space but also adds long-term value to your home.
Quartz is a construction and remodeling company serving San Jose and the nearby areas. Our firm offers a wide range of services, including full-home renovations, kitchen remodeling, bathroom renovations, window replacement, deck building and repair, patio construction, and more.
Address: 1777 Hamilton Avenue #1080, San Jose, 95125 California, USA.
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