ADU Construction in Centennial, CO
Backyard cottages and garage conversions, managed from the zoning check through the final inspection.
ADU Construction for Centennial homeowners
MKN Construction & Remodeling designs and builds accessory dwelling units (ADUs) for homeowners throughout Centennial, Colorado, roughly 15 miles south-southeast of downtown Denver in Arapahoe County. Centennial's homes lean toward 1970s through 1990s two-story, tri-level and ranch designs in mature suburban neighborhoods.
ADU rules in Centennial change with the zone and HOA covenants. We help you sort out what applies at your address. Every Centennial project is led by an owner, priced as a fixed itemized written estimate and built by our own crew, with permits filed through the City of Centennial and every inspection booked for you.
What ADU work costs in Centennial
ADU Construction in Centennial tracks greater-Denver pricing at roughly $180,000 – $400,000+, depending on your selections and scope. The main cost drivers appear below, and MKN Construction & Remodeling prices your specific Centennial project as a fixed, itemized written estimate.
- Whether it is a new detached build or a garage conversion.
- Overall size and the number of stories.
- How far the water, sewer, gas and electric connections are, and whether service upgrades are required.
- Site conditions such as access, grade, soil and mature trees.
For a fuller breakdown, read our Denver adu construction overview.
Neighborhoods we serve in Centennial
Centennial's homes lean toward 1970s through 1990s two-story, tri-level and ranch designs in mature suburban neighborhoods.
- Southglenn
- Willow Creek
- Cherry Knolls
- Walnut Hills
- Dove Valley
ADU Construction inspiration for Centennial
The styles we most often build for Centennial homeowners.
What a Centennial ADU project includes
- Zoning and feasibility review
- Architectural drawings and 3D design
- Permit submittal and plan-review follow-up
- Site work, foundation and framing
- Plumbing, electrical and HVAC
- Insulation, drywall and interior finishes
- Kitchen and bath installation
- Final inspections and certificate of occupancy sign-off
Why Centennial homeowners hire MKN
- Owner-operated projects: the owner is your single point of contact from the first call to the final walkthrough.
- Itemized fixed pricing: your written estimate lists every cost, and change orders are quoted in writing before work proceeds.
- Licensed and insured, with every permit filed and inspection coordinated.
- Dated written schedules, updated weekly, so you know which trade is on site.
- Design first, with 3D sign-off, so you approve the plan before demolition.
- Details selected for Colorado: UV, hail, snow, dry air and freeze-thaw.
Centennial adu construction: your questions answered
What does an ADU cost in Centennial?
ADU Construction in Centennial follows greater-Denver pricing of roughly $180,000 – $400,000+. Where your project lands depends on materials, size and whether utilities or structure change. MKN Construction & Remodeling prices your Centennial project as a fixed, itemized written estimate, so the number you sign is the number you pay.
How long should a ADU project take in Centennial?
Plan for 2–5 months of design and permitting followed by 4–8 months of on-site construction. Material lead times and permit review are the biggest schedule factors, so we order long-lead items and file permits while the design is wrapping up.
Who pulls the permits for accessory dwelling units (ADUs) in Centennial?
We do. Homes in Centennial are permitted through the City of Centennial, not the City and County of Denver. We prepare and file the required building and trade permits under our own contract and book every inspection. Like-for-like cosmetic updates often need none, while changes to structure, plumbing, gas or electrical do.
How can I get an estimate for my Centennial ADU?
Call (720) 336-0481 or email mknconstructionco@gmail.com to book a free on-site consultation in Centennial. We measure the space, discuss your goals and budget, and prepare a fixed, itemized written estimate with no obligation.
Do you work in my Centennial neighborhood?
Yes. We regularly build in Southglenn, Willow Creek, Cherry Knolls, Walnut Hills and Dove Valley, along with the rest of Centennial. If you are unsure we cover your address, call (720) 336-0481 and we will confirm.
We also work in nearby Arvada, Westminster, Thornton, Littleton. Browse all of our service areas.
Ready to plan your Centennial ADU?
Call (720) 336-0481, email mknconstructionco@gmail.com, or send a request. We reply within 24 hours with a fixed, itemized estimate.