
An Accessory Dwelling Unit (ADU) is a versatile, self-contained unit situated on the same lot as your primary home. Whether you need additional space for guests, a source of rental income, or a comfortable area for family members, an ADU offers practical solutions. At La Union Studio, we design ADUs that seamlessly blend with your existing home while adding value and functionality.
Our focus is on creating designs that enhance your property and meet your specific needs. We understand that every family and homeowner is unique, which is why we take the time to listen to your vision and requirements. From modern aesthetics to cozy retreats, our team works collaboratively with you to ensure that your ADU reflects your personal style and enhances your lifestyle. Additionally, our designs prioritize sustainability and efficiency, maximizing the use of space while minimizing environmental impact.
Let us help you turn underutilized space on your property into a practical, stylish addition to your home. With our expertise and attention to detail, we guide you through every step of the design and permitting process, ensuring a smooth and enjoyable experience. Whether you envision a tranquil garden suite, a vibrant studio for creative pursuits, or a comfortable space for aging family members, La Union Studio is here to transform your ideas into reality, creating a functional and inviting environment that enriches your home and community
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At La Union Studio, we merge design with culture to create meaningful and impactful spaces. Based in Seattle, Washington, and led by founders Sonia-Lynn Abenojar and Sergio Max Legon-Talamoni, we are a full-service interior design and cultural placemaking studio.
Our expertise spans commercial and residential projects, with a particular focus on cultural, retail, hospitality, food service, multi-family value additions, and custom single-family residential designs.

La Union Studio began with a mission to support local artisan business owners in launching and scaling their ventures. What started as a grassroots effort to lend our passion for advocacy and technical skillset to the community, has blossomed into a full-service design studio, proudly serving residential, commercial, and multifamily projects throughout Seattle, where founders Sonia-Lynn and Sergio are both born and raised and are deeply connected to their community. Our focus is on fostering collaboration and celebrating culture through thoughtful design that resonates with the needs of each client.

At La Union Studio, our relationship-focused approach to design is driven by a deep understanding of people, crafting spaces that reflect the stories of our clients, partners, and community. We believe that the best designs emerge from collaborative processes, active listening, and a holistic approach that honors both the physical and cultural aspects of every project.

At La Union Studio, we believe in transforming spaces through architecture, design, and cultural placemaking, enhancing both communities and lives. Led by founders Sonia-Lynn Abenojar and Sergio Max Legon-Talamoni, our team blends creativity with functionality to deliver designs that are as thoughtful as they are impactful. We prioritize collaboration, celebrating culture and tailoring each project to reflect our clients' unique visions. By doing so, we forge meaningful, lasting connections between people and the spaces they inhabit.

Led by founders Sonia-Lynn Abenojar and Sergio Max Legon-Talamoni, we are dedicated to delivering exceptional design solutions across a diverse range of projects. We harness a blend of expertise to create transformative spaces that integrate creativity with functionality. Our collaborative approach not only includes our talented in-house team but also leverages a robust network of skilled collaborators, ensuring that each project benefits from a wealth of perspectives and expertise.
An ADU (Accessory Dwelling Unit) or DADU (Detached Accessory Dwelling Unit) is a secondary housing unit on a single-family residential lot.
ADUs/DADUs provide additional living space for family members, rental income, or a home office.
Size limitations vary by local zoning regulations. We can help determine the maximum allowable size for your property.
Costs vary based on size, design complexity, and site conditions. We provide a detailed cost estimate after the initial consultation.
The timeline includes design, permitting, and construction phases, typically taking several months from start to finish.
This depends on local regulations. Some areas require a separate address, while others do not.
Yes, ADUs/DADUs can be rented out, providing additional income for homeowners.
Benefits include additional living space, rental income, increased property value, and flexibility for multigenerational living.
Yes, we handle all aspects of the permitting process, ensuring compliance with local regulations.
Yes, garage conversions are a popular option for creating ADUs. We can assess your garage and design a suitable living space.
Design options include various styles, layouts, and features tailored to your needs and preferences.
Zoning regulations vary by location and can affect size, height, setbacks, and occupancy. We ensure your project complies with all relevant regulations.
Explore our FAQ to learn more about our ADU/DADU design services and all about the process.
Book a consultation with our team of experts to discuss your ADU/DADU project today.
A balanced infill redevelopment in Seattle’s Maple Leaf neighborhood, the Dayton SFR + DADU project demonstrates how thoughtful design can transform a single-family lot into flexible, livable housing that responds to the region’s growing need for density.
Project DetailsA stunning remodel of a lake house in Seattle, WA rejuvenates the property into a modern retreat.
Project DetailsSchedule a complimentary consultation to discuss your dream home. Our design experts will work closely with you to bring your vision to life.