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
Hawaii's ADU laws have changed significantly since 2022 to encourage more housing. We stay current on Maui County's ADU requirements — including lot size minimums, utility requirements, and owner-occupancy rules.
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 & ADUs in Maui — Everything You Need to Know
An ohana unit — or accessory dwelling unit (ADU) — is a secondary residence built on a property alongside the primary home. On Maui, ohana units have deep cultural significance and enormous practical value. They provide housing for extended family, generate rental income to offset mortgage costs, and add substantial value to any property in one of Hawaii's most competitive real estate markets.
Hawaii ADU Hawaii rules changed significantly in 2022, when the state legislature passed laws designed to address Hawaii's housing shortage. These changes made it easier to build ADU Maui projects by removing some of the most restrictive barriers — but requirements around setbacks, lot coverage, utility connections, and owner-occupancy still apply and vary by zone. Can Can Builders stays current on all Maui County ADU requirements and can advise you on exactly what's possible on your specific parcel. See the full Hawaii ADU rules and guidelines.
The cost of an ohana unit Maui typically ranges from $150,000 to $350,000+, depending on size, finishes, site conditions, and whether it's attached or detached. This is higher than mainland ADU costs due to material shipping premiums, Maui's construction labor market, and permitting fees. However, with Maui rental rates among the highest in the nation, the return on investment for a well-built ohana unit can be exceptional — many clients see rental income that covers a significant portion of the construction cost within a few years.
Can Can Builders has built ohana units across Maui — detached studio units, full one-bedroom ohanas with kitchens and baths, garage conversion ohanas, and second-story additions over existing structures. We handle feasibility review, architectural plans, structural engineering, permit submittal, and all construction — one contractor, one contract, one point of accountability from start to finish.
What Can I Build?
Most residential zones in Maui allow one ohana unit per lot. Size limits, setbacks, and height restrictions vary. We review your parcel's specific zoning before you invest in plans.
Owner-Occupancy Requirement
Many Maui ADU permits require the property owner to occupy either the primary residence or the ohana unit. We'll advise you on the requirements for your specific zoning district.
Permit Timeline
ADU permit applications in Maui typically take 3–6 months for review. We submit complete packages to minimize revision requests and keep the process moving.
Construction Timeline
Once permitted, a typical detached ohana unit takes 3–6 months to build depending on size and site conditions. We build a realistic schedule upfront.
Rental Income Potential
Maui long-term rental rates for one-bedroom units regularly exceed $2,000/month. A well-built ohana can generate significant returns on construction investment.
Utility Connections
Ohana units require their own electrical connection; water and sewer requirements vary. We coordinate all utility connections as part of the project.
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.
Do I need a permit for an ADU in Maui?
Yes. All ADUs and ohana units in Maui County require building permits. Since 2022, Hawaii has streamlined ADU permitting to address the housing shortage, but requirements around setbacks, lot coverage, and owner-occupancy still apply. We handle the full permit process.
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 permit office workload. Larger additions requiring structural engineering review or zoning variances can take longer. We build these timelines into your project schedule from the start and submit complete, accurate permit packages to minimize back-and-forth with the county.
More space, more value — let's build your addition.