Can Can Builders Inc. · BC Lic# 29930
Home Additions Contractor in Maui, Hawaii
Room Additions, Ohana Units, ADUs, Master Suites, Garage Conversions
Home Additions
Expand Your Maui Home with Confidence
Home additions are complex projects that require careful planning, structural expertise, and deep familiarity with local building codes. Can Can Builders has been building home additions Maui homeowners depend on for over 40 years. We understand how to integrate new construction seamlessly with existing structures, navigate Maui County permitting, and deliver results that look like they were always part of the original home.
Ohana units and accessory dwelling units (ADUs) have become our most in-demand project type. As Maui's housing costs continue to rise, more families are adding ADU Maui and ohana unit Maui projects to create rental income, house family members, or increase their property value. We understand Hawaii's ADU permitting process in detail and have helped dozens of homeowners navigate successfully.
From a simple room addition Maui in Kahului to a complete ohana unit Maui in Kihei, we bring the same commitment to quality and communication to every project. Call (808) 250-1872 for a free consultation.
Island Expertise
Why Home Additions Are More Complex on Maui
Zoning & Setback Rules
Maui County has strict zoning regulations governing what can be built on each parcel — lot coverage limits, setback requirements, and height restrictions vary by zone. We review your parcel upfront to confirm feasibility before you commit to plans.
Wind & Seismic Engineering
Hawaii's building code requires additions to meet specific wind and seismic resistance standards. This means engineered structural elements — not just framing by feel — and a more rigorous permit review process than mainland states.
ADU & Ohana Unit Regulations
Maui County adopted new accessory dwelling rules in July 2026. Qualifying residentially zoned lots may now be eligible for up to two accessory dwellings alongside the main house. Zoning, parking and wastewater capacity still decide what any given parcel supports.
Permit Timeline Reality
Maui County permit review for additions typically takes 2–6 months. We build this into your project plan from day one so the timeline is realistic and there are no frustrating surprises mid-project.
Ohana Units & ADUs
Ohana Units and ADUs
Maui County adopted new accessory dwelling rules in July 2026. Qualifying residentially zoned properties can now be eligible for up to two accessory dwellings in addition to the primary residence. If you were told no in the past, the answer may have changed.
See our full guide to building an ADU or ohana unit on Maui →
Room Additions
Adding a room to your home is one of the best investments you can make in Maui's real estate market. Can Can Builders designs and builds room additions that integrate seamlessly with your existing structure — matching rooflines, exterior finishes, and interior materials. We handle all structural engineering, permitting, and construction from foundation to finish. Every room addition in Maui is built to meet Hawaii's wind and seismic requirements, which exceed mainland standards. A room addition Maui project typically takes 2–4 months from permit approval through finish work, and we communicate clearly at every milestone so you're never left wondering about status.
Laundry Room Additions
A dedicated laundry room adds function and convenience to any home. We convert closets, carports, or unused spaces into fully finished laundry rooms with proper plumbing, electrical, ventilation, and storage. Our team handles all utility connections and finishes the space to match your home. This is one of the most practical home addition Maui improvements we complete — the convenience difference between a dedicated laundry room and a stacked unit in a closet is significant.
Master Bedroom & Suite
A master suite addition can transform your home — adding a private bedroom, spa-like bathroom, walk-in closet, and sitting area. Can Can Builders designs master suite additions that respect your home's existing architecture while creating a luxury retreat. We coordinate all trades — framing, electrical, plumbing, HVAC, tile, and finish carpentry — under one contract. Master suite additions are among our most popular home additions Maui projects, particularly for families who want to stay in their current home and neighborhood rather than moving to a larger property.
Closet Remodeling
Custom closet builds and remodels make a daily difference in how a home functions. Can Can Builders designs and builds walk-in closets, reach-in closet conversions, master closet expansions, and integrated dressing rooms — with custom shelving, drawer systems, hanging rods, shoe storage, and lighting tailored to how you actually use the space. We coordinate framing, electrical, drywall, and finish carpentry under one contract. For Maui homes where humidity is a concern, we use moisture-resistant materials and proper ventilation so closet contents stay dry and clean.
Attic Remodeling
An attic conversion turns unused overhead space into living square footage without adding footprint to your lot — an important consideration on properties with limited lot coverage remaining. We evaluate structural feasibility, add proper insulation for Maui's climate, install dormers or skylights for natural light, run electrical and HVAC, and build out a finished living space — bedroom, office, or bonus room. All attic conversions are fully permitted with Maui County Building & Permits.
Garage Conversions
A garage conversion is one of the most cost-effective ways to add living space to your home. We transform single and two-car garages into bedrooms, home offices, studios, or ohana units. Our team insulates, drywalls, adds flooring, and finishes the space to match the rest of your home — completely and professionally. For garage conversion Maui projects, we also handle the electrical upgrades, HVAC additions, and plumbing rough-in needed to make the space fully functional as living quarters. All garage conversions are permitted with Maui County Building & Permits.
How We Work
Our Home Addition Process
From feasibility to finished space — a process built for Maui's requirements.
Feasibility Check
We review your zoning, setbacks, lot coverage limits, and utility access to determine what's possible on your specific parcel.
Design & Engineering
We develop plans that integrate seamlessly with your existing structure and meet Hawaii's wind and seismic requirements.
Permits
We submit all permit applications and manage the Maui County review process — often the most time-consuming part of any addition.
Foundation & Framing
Our experienced crew builds your addition from the ground up, keeping you informed at every structural milestone.
Interior Finish
We complete all interior finish work — drywall, tile, flooring, paint, and trim — to match your home seamlessly.
FAQ
Home Addition Questions
How much does an ohana unit cost in Maui?
Ohana unit and ADU construction in Maui typically costs $150,000–$350,000+ depending on size, site conditions, and finishes. Maui's material costs and permitting fees are higher than mainland averages. We provide detailed estimates after a site visit and a review of your parcel's zoning.
Do I need a permit for a home addition in Maui?
Yes. Any addition that changes your home's footprint or adds living space requires a building permit through Maui County, along with structural review. Permit review commonly runs three to six months, and applications are processed first come, first served. We prepare and submit the package. Ohana units and ADUs follow their own chapter of the county code — see our ADU and ohana unit guide for those.
How long does it take to get a building permit for a home addition on Maui?
Maui County permit review for additions typically takes 2–6 months depending on project complexity and current office workload. Larger additions requiring structural engineering review or zoning variances can take longer. We submit complete, accurate permit packages to minimize revision requests and build realistic timelines from the start.
How do I verify a contractor's license in Hawaii?
You can verify any contractor's license through the Hawaii DCCA at pvl.ehawaii.gov. Can Can Builders holds BC Lic# 29930. Checking license status before hiring protects you from unlicensed contractors who cannot legally pull permits — leaving you liable for unpermitted work.
Can I build an ohana unit on my Maui property?
Most residential zones in Maui County allow one ohana unit or ADU per lot, but lot size minimums, setbacks, height limits, and owner-occupancy rules vary by zone. We review your parcel's specific zoning upfront — at no charge — before you spend money on plans. Call (808) 250-1872 to set up a free feasibility review.
More space, more value — let's build your addition.