PSE Consulting Engineers, Inc
- 250, Main Street, Klamath Falls, Klamath County, Oregon, 97601, United States
- (541) 850-6300
ADU’s by Design is a Southern California-based construction and design company specializing in Accessory Dwelling Units (ADUs), garage conversions, and residential development projects. Serving homeowners and investors throughout Riverside County and San Bernardino County, the company provides a complete design-build solution, managing every stage of an ADU project from initial planning and design through construction and final completion.
As an experienced ADU builder and accessory dwelling unit contractor, ADU’s by Design helps clients maximize property value, create additional living space, and generate long-term rental income through professionally designed and code-compliant ADU solutions.
ADU’s by Design operates as a one-stop-shop for homeowners looking to add secondary living spaces to their properties. Their integrated approach eliminates the need to coordinate multiple vendors, architects, and contractors by keeping the entire process under one team.
Detached ADU construction
Attached ADU construction
Garage conversions
In-law suite construction
Backyard cottages and casitas
Custom ADU design
Architectural planning and drafting
Residential remodeling
New home construction
ADU consultations and feasibility reviews
The company also offers pre-designed ADU models that provide homeowners with predictable pricing and streamlined construction timelines while still allowing for customization based on property needs.
ADUs have become one of the most popular ways to expand residential properties throughout California. ADU’s by Design works with both homeowners and real estate investors to create versatile living spaces that serve multiple purposes.
Rental income opportunities
Housing for aging parents
Multi-generational living
Guest accommodations
Home offices and creative studios
Long-term investment properties
Independent living space for adult children
Their team helps clients determine the most suitable ADU type based on lot size, zoning requirements, budget, and intended use.
ADU’s by Design has completed and planned a variety of residential projects throughout the Inland Empire, demonstrating experience across multiple project types and scales.
Custom two-story home with detached ADU in Corona, CA
Second-story two-bedroom ADU with private entrance in Riverside, CA
Planned urban residential development featuring 17 detached two-story homes in Riverside, CA
These projects showcase the company’s ability to handle everything from individual backyard ADUs to larger residential development initiatives.
Building an ADU can be a complex undertaking involving zoning regulations, permits, design decisions, and construction requirements. ADU’s by Design helps simplify the process by educating homeowners throughout every stage of development.
The company regularly hosts informational seminars designed to help homeowners better understand:
ADU regulations and requirements
Design and planning considerations
Construction timelines
Budget expectations
Property value impacts
Rental income opportunities
This educational approach helps clients make informed decisions before beginning their projects.
Specialized ADU builder serving Southern California
Full-service design-build approach
Experience with detached, attached, and conversion ADUs
Architectural design and construction under one team
Pre-designed and custom ADU options
Multi-licensed construction professionals
Residential development experience
Educational seminars and homeowner support
Service throughout Riverside and San Bernardino Counties
ADU’s by Design is committed to helping homeowners create practical, attractive, and income-producing living spaces through thoughtful design and quality construction. Whether building a detached backyard cottage, converting an existing garage, or adding an attached in-law suite, the company provides a structured and professional process designed to turn underutilized property space into valuable living areas.
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