ADU Construction Services in Mountain View, CA
Animas Valley Construction builds custom ADUs in Mountain View, CA. Detached, attached, garage conversions & more. Request your free consultation today.
Professional ADU Construction Services in Mountain View, CA
Attached, Detached, Conversions & More
Mountain View homeowners are increasingly turning to accessory dwelling units as a smart investment in one of the Bay Area’s most competitive housing markets. Whether you’re looking to generate rental income, create a private living space for aging parents, or simply maximize the value of your property, building an ADU is one of the most impactful improvements you can make to your home.
At Animas Valley Construction, we specialize in ADU construction for homeowners throughout Mountain View and the greater Silicon Valley region. Led by owner Daniel Zaragoza, who brings over 15 years of residential construction experience, our team handles every phase of the ADU building process — from initial design consultation and city permitting to foundation work, framing, and final finishes. We understand the specific zoning requirements and building codes that apply to ADU projects in Mountain View, and we work closely with the city’s planning department to keep your project on track.
According to the California Department of Housing and Community Development, ADU permit applications across the state have increased by more than 60% since 2020, with Santa Clara County consistently ranking among the top regions for new ADU construction. Mountain View, in particular, has embraced ADU-friendly policies that make it easier than ever for homeowners to add a secondary dwelling to their property. The city allows both attached and detached ADUs on most single-family residential lots, and recent state legislation has streamlined the approval process significantly.
What sets our approach apart is that we treat every ADU project as a fully custom build. We don’t rely on cookie-cutter plans or prefabricated kits. Instead, we work with you to design a unit that complements your existing home’s architecture, meets your functional needs, and stays within your budget. From selecting durable, high-quality materials to coordinating plumbing, electrical, and HVAC systems, our team manages every detail so you don’t have to. If you’re ready to explore what’s possible on your property, contact us to schedule a free consultation.
Types of ADUs We Build in Mountain View
Detached ADUs
A standalone structure built separately from your primary residence, offering maximum privacy and flexibility. Detached ADUs are ideal for rental income or housing family members who want their own independent space.
Attached ADUs
An addition built directly onto your existing home, sharing one or more walls with the primary structure. This option typically costs less than a detached unit and works well on properties with limited yard space.
Garage Conversion ADUs
Transform your underutilized garage into a fully functional living space with a kitchen, bathroom, and sleeping area. Garage conversions are one of the most cost-effective ways to add an ADU because the basic structure is already in place.
Junior ADUs (JADUs)
A smaller unit of up to 500 square feet created within the existing footprint of your home, such as converting a bedroom or portion of the house. JADUs are permitted in addition to a standard ADU on the same property, giving homeowners even more flexibility.
Above-Garage ADUs
A second-story unit built on top of an existing or new garage, maximizing your lot’s vertical space. This design preserves your parking and yard area while adding a fully independent dwelling above.
Multi-Bedroom ADUs
Larger units designed with two or more bedrooms to accommodate families, long-term tenants, or multigenerational living arrangements. These builds include full kitchens, bathrooms, and living areas that rival the comfort of a traditional home.
Request an ADU Construction Consultation in Mountain View, CA
Free Consultations
Ready to take the first step toward building an ADU on your Mountain View property? Our team is here to answer your questions, discuss your vision, and provide a detailed estimate tailored to your project. Fill out the form and a member of our team will be in touch within one business day to schedule your free, no-obligation consultation.
- Phone: 408-629-4047
- Email: [email protected]
- Office Hours: Monday – Friday, 8:00 AM – 5:00 PM
- Address: 5361 Armonk Court, San Jose, CA 95123
- License #: 1027294
About Animas Valley Construction
Top Construction Company in Mountain View
Animas Valley Construction is a San Jose-based general contractor founded by Daniel Zaragoza, a construction professional with over 15 years of hands-on experience in residential building and remodeling. Since expanding into ADU construction in 2023, we’ve helped homeowners across the Bay Area add functional, high-quality secondary dwellings to their properties. As a fully licensed and insured California contractor (License #1027294), we bring the same attention to detail and commitment to craftsmanship to every project — whether it’s a compact junior ADU or a full-sized detached unit. Our goal is simple: deliver exceptional results on time and within budget.
What Our Clients Say
I found Daniel, the owner, through recommendations from two neighbors who were extremely satisfied with his remodeling work. I also highly recommend Daniel. He completed my two-bathroom remodel beyond my expectations, both technically and aesthetically. The project passed all required city inspections and stayed on budget, all while my family remained in the home throughout the construction.
L. V.
Yelp ReviewWe had a fantastic experience with Animas Construction! They updated our living room, kitchen, family room, and bathroom — and we couldn’t be happier with the results. Daniel was incredibly supportive and attentive throughout the entire process. He really listened to our ideas and offered thoughtful suggestions to help improve our living spaces. We were also amazed at how efficiently Daniel and his team worked, completing everything on time without compromising quality. Their professionalism stood out, and they made sure to clean up thoroughly at the end of each day. Highly recommend Animas Construction!
Delia Besio
Google ReviewI contacted Daniel to remodel our Master bedroom…. Daniel showed up on time and gave us an honest and sincere evaluation to the project we had in mind. We are definitely pleased with his input to our concerns and we are executing his recommendations one phase at a time and we are at phase 2 out of 3. I will certainly provide another review when we are done with phase 3 … let me just say for now that so far so GOOD. So thank you Daniel Animas.
Miguel Dabliz
Google ReviewWhy Choose Animas Valley for Your Mountain View ADU Project
Owner-Led Project Management
Every ADU project is personally overseen by company owner Daniel Zaragoza, ensuring direct accountability and clear communication from start to finish. You’ll never be handed off to a rotating crew of strangers — you’ll work with the same dedicated team throughout your build.
Full-Service Permitting Support
Navigating Mountain View’s permitting process can be complex, and we handle the paperwork, plan submissions, and city inspections on your behalf. Our familiarity with local building codes and zoning regulations helps avoid costly delays and revisions.
Transparent Pricing With No Hidden Costs
We provide detailed, itemized estimates before any work begins so you know exactly where your investment is going. Our commitment to budget-friendly solutions means we help you make smart material and design choices without sacrificing quality.
Custom Design for Every Property
We don’t use one-size-fits-all floor plans. Each ADU is designed to complement your home’s existing architecture, maximize your lot’s potential, and reflect your specific needs — whether that’s a rental unit, guest house, or in-law suite.
Licensed, Insured, and Experienced
As a fully licensed California contractor with over 15 years of construction experience, we carry the required bonding and liability insurance for your protection. You can verify our credentials through the California Contractors State License Board (License #1027294).
Comprehensive Construction Capabilities
Beyond ADUs, we offer kitchen remodeling, bathroom remodeling, and home additions, which means we can coordinate interior finishes, plumbing, electrical, and structural work entirely in-house without relying on a patchwork of subcontractors.
Serving Mountain View Neighborhoods and Nearby Cities
Animas Valley Construction is proud to serve homeowners throughout Mountain View, including neighborhoods such as Old Mountain View, Cuesta Park, Waverly Park, Rex Manor, Sylvan Park, and the Shoreline West area. Each of these communities has its own character and lot configurations, and we tailor our ADU designs to fit the specific requirements of your property and neighborhood.
Our service area extends well beyond Mountain View. We also build ADUs and provide remodeling services in Sunnyvale, Palo Alto, San Jose, Santa Clara, Los Altos, Cupertino, Campbell, and Los Gatos. No matter where you’re located in the South Bay or Peninsula, our team is ready to bring your ADU vision to life.
Additional Construction Resources for Mountain View
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Building an ADU in Mountain View: What You Need to Know
Frequently Asked Questions About ADU Construction in Mountain View
Most ADU projects take between six and twelve months from initial design to final inspection, depending on the size and complexity of the build. The permitting phase in Mountain View typically accounts for several weeks of that timeline. We keep you informed at every milestone so there are no surprises along the way.
ADU construction costs in the Bay Area generally range from $150,000 to $400,000 or more, depending on the unit's size, design, and finish level. Garage conversions tend to fall on the lower end of that range, while custom detached units with premium finishes will be higher. We provide a detailed, no-obligation estimate after evaluating your property and discussing your goals.
Yes, all ADU construction in Mountain View requires building permits from the city's Community Development Department. California state law has simplified the process significantly, but there are still setback, height, and size requirements that must be met. Our team handles the entire permitting process on your behalf to ensure full compliance.
Absolutely. You can convert your existing garage into a living space, build a new ADU elsewhere on your lot, or even construct a unit above the garage. Mountain View's zoning regulations are generally favorable toward ADU development on single-family residential properties, and state law prohibits cities from requiring replacement parking in most cases.
Research consistently shows that a well-built ADU can increase a property's value by 20% to 30% or more, depending on the local market. In a high-demand area like Mountain View, where median home prices remain among the highest in the nation, the return on investment can be substantial. Beyond resale value, an ADU also generates ongoing rental income that can offset your mortgage or construction costs.
Yes, Mountain View allows homeowners to rent out their ADUs as long-term rentals. The city's rental regulations may apply, including rent stabilization provisions for certain properties, so it's important to understand the local rules before listing your unit. We recommend consulting with the city's housing department or a local real estate attorney for the most current rental guidelines.
An ADU is a self-contained dwelling unit with its own kitchen, bathroom, and entrance, and it can be up to 1,200 square feet depending on your lot and local regulations. A junior ADU (JADU) is a smaller unit of up to 500 square feet that is created within the existing walls of your primary home and may share a bathroom with the main house. California law allows you to build both an ADU and a JADU on the same single-family lot, giving you maximum flexibility.
