Accessory Dwelling Units (ADUs) for Illinois Properties
Want to add living space or rental income to your property? Our custom ADUs combine smart design with quality construction.
What Are ADUs and Why Consider One?
Wondering what an ADU is and how it could benefit you?
Accessory Dwelling Units (ADUs) are secondary living spaces on your property – often called backyard cottages, in-law suites, or granny flats.
These versatile structures can serve as rental units, guest accommodations, home offices, or living space for family members.
As a specialized ADU builder in Illinois, Quantum Realm Construction designs and develops custom accessory dwelling units that maximize both function and style. Our ADUs are thoughtfully designed to complement your main home while creating valuable additional space.
Rental Income Potential
Want to generate monthly income from your property? ADUs make excellent rental units, especially in high-demand areas like Champaign and Urbana. With the University of Illinois nearby, there's strong rental demand from faculty, graduate students, and professionals seeking quality housing.
Flexible Living Space
Need space for visiting family, returning adult children, or aging parents? ADUs provide private, comfortable accommodations while maintaining proximity and connection. These versatile spaces evolve with your changing needs over time.
Property Value Increase
Looking to increase your home's value? Adding an ADU can significantly boost your property's worth and marketability. This investment often provides excellent returns when it's time to sell your home.
Work-From-Home Solution
Need a dedicated home office away from household distractions? ADUs create the perfect separation between work and home life while eliminating commutes and commercial office costs.
How We Design and Build Your ADU
Custom Design
We create ADUs that complement your main home's architecture while maximizing space efficiency. Each design considers your specific needs, site conditions, and aesthetic preferences.
Quality Construction
Our construction process emphasizes quality materials and careful execution. We coordinate specialized subcontractors while maintaining consistent standards throughout the project.
Permit Navigation
We help navigate zoning requirements and building permits for ADUs in your specific location. Our knowledge of local regulations streamlines the approval process.
Complete Utilities
We handle all necessary utility connections, including electrical, plumbing, HVAC, and internet, ensuring your ADU functions as a fully independent living space.
Interior Finishing
From flooring and lighting to kitchens and bathrooms, we finish your ADU with attention to both aesthetics and functionality, creating a space that's immediately ready to use.
What Kinds of ADUs Do We Build?
How We Create Your ADU
Initial Consultation
We discuss your goals, needs, and ideas for your ADU, exploring options that work for your property and budget.
Site Assessment
We evaluate your property to determine the best location and type of ADU, considering factors like access, privacy, and utility connections.
Design Development
We create custom designs tailored to your specific needs and preferences, with detailed plans for permitting and construction.
Permitting Assistance
We help navigate local zoning regulations and building permits, managing the approval process on your behalf
Construction
Our team coordinates and oversees the entire construction process, from site preparation through final finishing.
Final Inspection
We conduct a thorough walkthrough with you to ensure everything meets our quality standards and your expectations.
See Our Work: Projects That Showcase Our Approach
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What Our Clients Say About Working With Us
If you’re looking for someone who can truly bring your vision to life, Mark at Quantum Realm Construction & Woodcraft is the person to call. His work speaks for itself—an impeccable blend of creativity, precision, and artistry that transforms ordinary spaces into something extraordinary.Mark has an innate ability to understand what his clients want and elevate it with his own expertise. From stunning remodels to beautifully crafted fences, decks, and unique wood pieces, his projects aren’t just built—they’re thoughtfully designed with care and attention to detail.
The level of craftsmanship he brings to every job is rare and shows in the final result.What I appreciate most about working with Mark is his straightforward and open communication. He makes the entire process seamless by keeping you informed and ensuring every element of the project meets—and often exceeds—expectations.
His pride in his work and dedication to his clients is obvious, and it’s what sets him apart.If you’re in the Arthur, Decatur, Mattoon, or Champaign area, do yourself a favor and get in touch with Mark. Whether it’s a home upgrade or a custom woodcraft piece you’ve been dreaming of, he’ll deliver something truly remarkable. I couldn’t recommend him more!
FAQs
Regulations vary by location, but many communities in Central Illinois now permit ADUs. Cities like Champaign and Urbana have specific ADU ordinances. We can help determine what's allowed on your property.
ADU projects typically range from $80,000 to $200,000, depending on size, features, and site conditions. We provide detailed cost estimates based on your specific project requirements.
Most ADU projects take 3-6 months from design approval to completion, depending on complexity, permitting timelines, and seasonal factors.
Yes, several financing options exist for ADUs, including home equity loans, construction loans, and renovation mortgages. Some lenders now offer specific ADU financing programs.
Adding an ADU will likely increase your property's assessed value and therefore your property taxes. However, the rental income or property value increase typically offsets this cost significantly.
Still have questions?
Ready to Discuss Your Project? Let's Connect
Take the first step toward your luxury tiny home by scheduling a consultation. We'll discuss your vision, answer questions, and determine if we're the right builder for your project.