• Earn Rental Income – Create a steady stream of income
• Add Flexible Space – Use it for family, a home office, or future needs
• Boost Property Value – Increase resale value with more livable square footage
• Affordable Housing Option – A smart, cost-effective way to expand your property
• Make the Most of Your Lot – Turn underused space into something valuable

Prefab (pre-manufactured) ADUs offer a faster, more affordable, and stress-free way to add space and value to your property.

• Faster Build Time – Built off-site and installed quickly, cutting down months of construction delays
• Lower Cost – More budget-friendly than traditional builds, with transparent pricing and fewer surprises
• Less Disruption – Minimal mess and noise. Since most of the work is done off-site, actual time spent in your backyard is far less than traditional stick-built construction
• High Quality & Modern Design – Precision-built with consistent quality, energy efficiency, and stylish finishes
• Simplified Process – Skip the headaches. We handle design, permits, delivery, and installation
• Flexible Options – Choose from a range of sizes and styles, from compact studios to spacious 2-bedroom units

Prefab is what we do — and we do it well.

We’ve delivered prefab projects larger and more complex than ADUs, and we bring that same level of expertise and care to every unit we build. Whether you're just exploring or ready to start, we’ll help you figure out what you need and guide you every step of the way.

Our design team will:
• Understand your space and goals
• Match your ADU to your main home
• Help you choose the right exterior and interior finishes
• Create a layout that works for your lifestyle

At DSM Development, we’re not just building units — we’re building smart, beautiful solutions that fit your life.