Our Services

ADU & DADU Construction Services

Accessory Dwelling Units (ADUs) and Detached Accessory Dwelling Units (DADUs) are among the most valuable investments a homeowner can make. Whether you're looking to generate rental income, create space for family members, or increase your property value, an ADU or DADU offers flexibility, functionality, and long-term financial return.

At FINAO Construction, we specialize in designing and building high-quality ADUs and DADUs that are fully permitted, beautifully crafted, and tailored to your lifestyle. From the first sketch to the final walkthrough, our team handles every detail — so you can enjoy a seamless experience and a stunning finished space.

What Is an ADU?

An Accessory Dwelling Unit (ADU) is a secondary housing unit located on the same property as a primary residence. It may be attached to the main home (such as a basement conversion or garage conversion) or built as an addition. ADUs are typically smaller than the primary home but include their own living space, kitchen, and bathroom.

What Is a DADU?

A Detached Accessory Dwelling Unit (DADU) is a standalone structure built on the same lot as the primary residence. Sometimes called a "backyard cottage," "granny flat," or "garden suite," a DADU offers complete independence and privacy from the main home.

Both ADUs and DADUs are excellent ways to maximize the use of your property while adding significant value.

Benefits of Building an ADU or DADU

1. Generate Rental Income

One of the most popular reasons homeowners build an ADU or DADU is to generate rental income. With rising housing costs, a well-designed ADU can provide steady monthly income — helping you offset your mortgage or build long-term wealth.

2. Increase Property Value

Adding an ADU or DADU can significantly increase the resale value of your property. Buyers are increasingly looking for homes with additional living space, and an ADU can be a major selling point.

3. Create Space for Family

Whether you're housing aging parents, adult children, or extended family, an ADU or DADU provides privacy and independence while keeping loved ones close.

4. Flexible Living Options

An ADU can serve as a home office, guest suite, art studio, or rental unit — the possibilities are endless. It's a flexible space that adapts to your changing needs.

5. Maximize Your Property's Potential

If you have unused backyard space, an ADU or DADU allows you to turn that space into something functional and valuable.

Our ADU & DADU Construction Services

At FINAO Construction, we offer full-service ADU and DADU construction, including:

  • Site Assessment & Feasibility Study — We evaluate your property to determine the best location and design for your ADU or DADU.
  • Custom Design & Planning — Our team works with you to design a unit that matches your style, needs, and budget.
  • Permitting & Approvals — We handle all permits, zoning requirements, and inspections — ensuring your project is fully compliant.
  • Construction & Project Management — From foundation to finishes, we manage every phase of the build.
  • Utilities & Site Work — We coordinate plumbing, electrical, HVAC, and all necessary site work.
  • Final Inspection & Handover — We ensure everything is up to code and ready for you to enjoy.

Why Choose FINAO Construction for Your ADU or DADU?

1. Woman-Owned & MWBE Certified

As a woman-owned and minority-owned busi ness, we bring a unique perspective and commitment to quality that sets us apart. Our MWBE certification also helps prime contractors and agencies meet diversity goals.

2. 14+ Years of Experience

With over a decade of construction experience, we've built ADUs and DADUs that stand the test of time. Our team understands the unique challenges of ADU construction — from zoning regulations to utility connections.

3. Licensed, Bonded & Insured

We are fully licensed and insured, giving you complete peace of mind throughout the project.

4. Transparent Pricing & Free Estimates

We provide clear, upfront pricing with no hidden fees. Our free estimate process ensures you know exactly what to expect.

5. On-Time Delivery

We respect your time and budget. Our team works efficiently to complete your ADU or DADU on schedule.

6. End-to-End Service

From design to final inspection, we handle everything — so you don't have to coordinate multiple contractors.

Our ADU & DADU Construction Process

Step 1: Free Consultation

We begin with a one-on-one consultation to understand your goals, budget, and timeline.

Step 2: Site Assessment

Our team visits your property to assess feasibility, zoning, and utility access.

Step 3: Design & Planning

We create a custom design tailored to your needs and submit all necessary permits.

Step 4: Construction

Our skilled team builds your ADU or DADU from the ground up, keeping you informed every step of the way.

Step 5: Final Walkthrough & Handover

We conduct a thorough inspection and walk you through your finished unit.

Types of ADUs & DADUs We Build

  • Detached DADUs — Standalone backyard cottages
  • Attached ADUs — Additions to the main home
  • Garage Conversions — Converting garages into living spaces
  • Basement Conversions — Transforming basements into apartments
  • Second-Story ADUs — Adding units above existing structures
  • In-Law Suites — Private living spaces for family members
  • Rental Units — Income-generating ADUs

Frequently Asked Questions

Q: How long does it take to build an ADU or DADU?

A: Timelines vary depending on design, permits, and construction complexity — typically 6 to 12 months from start to finish.

Q: Do I need permits for an ADU or DADU?

A: Yes. ADUs and DADUs require permits and must comply with local zoning and building codes. We handle all permitting for you.

Q: Can I rent out my ADU or DADU?

A: In many cases, yes. Rental regulations vary by location — we can help you understand the rules in your area.

Q: How much does an ADU or DADU cost?

A: Costs depend on size, design, materials, and site conditions. We offer free estimates to give you a clear picture.

Q: Can you help with financing?

A: While we don't provide financing directly, we can guide you toward resources and lenders experienced in ADU construction.

Contact FINAO Construction Today

Ready to build your dream ADU or DADU? Whether you're looking to generate income, house family, or increase your property value, FINAO Construction is here to bring your vision to life.

📞 Call us today for a free estimate: 253-217-8054

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