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ADU Construction
Build Smart - Build Local Build an ADU That Fits Your Life.
AAA Home Improvements helps Denver homeowners design, permit, and construct custom Accessory Dwelling Units (ADUs) that increase property value, add living space, and unlock new income opportunities.
Accessory Dwelling Units
What Is an ADU and Why Are They Booming in Colorado?
Accessory Dwelling Units (ADUs) are self-contained residential structures located on the same lot as a primary home. They typically include a kitchen, bathroom, living area, and a private entrance. Depending on your needs and lot conditions, ADUs can be attached to your home, built above a garage, converted from a basement, or constructed as standalone buildings in your backyard.
Why ADUs Are in High Demand Across the Front Range:
Housing Costs Are Rising – Homeowners are using ADUs as a more affordable way to accommodate family or generate passive income.
Zoning Is Evolving – Cities like Denver, Lakewood, Arvada, and Littleton are updating code to allow more ADUs, even in formerly restricted zones.
Aging in Place – Homeowners are building ADUs for parents, adult children, or caregivers.
Rental Income – With Denver’s tight rental market, ADUs offer a strong ROI as long-term or Airbnb rentals.
Property Value Boost – A well-built ADU can significantly increase a home’s market value and resale appeal.
Let’s Talk About What’s Possible for Your Property
Every ADU starts with one conversation. We’ll help you understand what’s allowed, what’s possible, and what your next steps should be. There’s no obligation—just expert advice tailored to your situation.
Types of ADUs & What They’re Best For
Detached ADUs (DADUs)
A detached ADU is a stand-alone structure separate from the main home—often referred to as a backyard cottage, carriage house, or guest home.
Best For:
Creating a rental unit for passive income
Providing housing for aging parents
Offering privacy to guests or adult children
Long-term multigenerational living
Benefits:
Maximum privacy for both main house and ADU occupant
Design freedom (it can match or contrast main home architecture)
Separate utilities and entrance
Challenges:
Higher construction cost
Requires more yard space and city setbacks
Let’s Talk About What’s Possible for Your Property
Every ADU starts with one conversation. We’ll help you understand what’s allowed, what’s possible, and what your next steps should be. There’s no obligation—just expert advice tailored to your situation.
Garage Conversions
Garage conversions transform existing attached or detached garages into fully livable units. These ADUs typically require framing, insulation, plumbing, and full interior remodeling.
Best For:
Maximizing underutilized space
Quick turnaround builds
Mid-range budget projects
Benefits:
Lower cost than new construction
Doesn’t require expanding your home’s footprint
Great for home offices or short-term rentalsLoss of parking/storage
Challenges:
Loss of parking/storage
Some garages may need structural reinforcement
Let’s Talk About What’s Possible for Your Property
Every ADU starts with one conversation. We’ll help you understand what’s allowed, what’s possible, and what your next steps should be. There’s no obligation—just expert advice tailored to your situation.
Above-Garage ADUs (Over-Garage Units)
These units are built on top of an existing detached garage or include a garage on the ground floor with living space above.
Best For:
Narrow urban lots with minimal backyard space
Rental units with alley access
Homeowners wanting garage + income combo
Benefits:
Efficient vertical use of space
Separate entrance from alley or street
Garage + apartment combo increases total value
Benefits:
More complex engineering and permitting
Staircase accessibility required
Let’s Talk About What’s Possible for Your Property
Every ADU starts with one conversation. We’ll help you understand what’s allowed, what’s possible, and what your next steps should be. There’s no obligation—just expert advice tailored to your situation.
Basement ADUs
Basement conversions turn unused or partially finished lower levels into completely independent living spaces. These are often ideal for families with older children, caretakers, or live-in relatives.
Best For:
Multigenerational households
In-home caregivers
Long-term guests or rentals
Benefits:
Lowest-cost ADU option
Already insulated and framed in most cases
Minimal exterior changes
Benefits:
Limited natural light
May require egress windows or ceiling height modifications
Let’s Talk About What’s Possible for Your Property
Every ADU starts with one conversation. We’ll help you understand what’s allowed, what’s possible, and what your next steps should be. There’s no obligation—just expert advice tailored to your situation.
Attached or Internal ADUs (Multigenerational Suites)
These units are carved out of the main home’s footprint—usually with shared walls but separate entrances. They may be attached side units or internal areas reconfigured with private access.
Best For:
Elderly parents who need some care but want independence
Close family who don’t need total separation
Entry-level ADU projects in lower-cost zones
Benefits:
Less expensive than detached units
Simplified utility connections
Ideal for smaller lots
Challenges:
Less privacy
Soundproofing and layout challenges
Let’s Talk About What’s Possible for Your Property
Every ADU starts with one conversation. We’ll help you understand what’s allowed, what’s possible, and what your next steps should be. There’s no obligation—just expert advice tailored to your situation.
Why Choose AAA for Your Home Addition?
Design-Build Expertise – We manage the entire process from planning and permitting to construction and final walkthrough.
Experienced Craftsmen – Our team brings decades of experience in structural remodeling and additions.
Seamless Integration – We specialize in making your new space feel like it was always part of your home.
Smart Planning – We help you navigate zoning laws, setbacks, and structural limits to avoid costly surprises.
Transparent Process – Our 6-step system ensures clear communication from consultation to completion.
Process Steps
AAA Home Improvements – 6-Step Project Process
“From Concept to Completion: A Proven System for High-End Results”
Discovery Call
We start every project with a virtual consultation. During this video call, you’ll meet with Charles Ruppert, our Estimator, to discuss your vision, goals, timeline, and budget. We’ll gather essential details about your property and help you determine if your project is a good fit before ever stepping onsite.
Onsite Job Walk & Feasibility Review
Our team visits your property to evaluate zoning, setbacks, structural constraints, and overall feasibility. We’ll take measurements, photos, and assess the physical scope of work. This is where we ensure that what you want to build can actually be built — legally and structurally.
Outcome: Feasibility confirmed, potential constraints identified, zoning research initiated.
Conceptual Design & 3D Renderings
Using Chief Architect, our in-house team brings your vision to life with architectural drawings and 3D renderings. You’ll be able to walk through your future space virtually, make revisions, and ensure every detail fits your lifestyle before committing to construction.
Outcome: Visual plans completed, revisions finalized, client approval obtained.
Engineering & Permitting
Our project engineer, Luke, handles all necessary engineering and structural plans. We then submit them to the appropriate city or county building departments for permitting. You won’t have to worry about red tape — we manage the entire process on your behalf.
Outcome: Approved permit set, ready for scheduling construction.
Construction & Project Management
Led by our Construction Manager JT, your project moves into full production. We coordinate all subcontractors, inspections, and materials — while maintaining communication with you at every stage. Weekly updates ensure transparency and our high standards ensure lasting quality.
Outcome: Project built to plan, quality controlled, and updated throughout production.
Final Walkthrough & Completion
Once construction wraps up, we’ll schedule a final walkthrough to review every detail. Any punch list items are addressed promptly. We also provide guidance on maintenance and warranties so you feel confident about your investment.
Outcome: Project delivered, client satisfaction confirmed, warranty begins.
Testimonials
