Multigenerational Living on Maui: Ohana Homes, ADUs and How to Buy right

In Hawaii, multigenerational living has always been the plan.

There’s a national conversation happening right now about multigenerational households — the idea that families pooling resources to buy a home together is a “new trend.” Somewhere between 14% and 17% of all US home buyers last year purchased a multigenerational home, according to the National Association of Realtors, and the mainland real estate press has been covering it like a discovery.

Here in Hawaii, we smile a little at that. Because multigenerational living isn’t a trend here — it’s tradition. “Ohana” means family in Hawaiian, and the concept includes not just parents and kids but grandparents, aunties, uncles, and cousins. For generations of local Hawaiian, Japanese-American, Filipino-American, and other kama’aina families, the idea of multiple generations under one roof (or on one parcel) isn’t a workaround. It’s the norm.

That tradition is baked into Maui real estate. Hawaii is literally the only state where the legal term for an accessory dwelling unit — the thing mainland planners call an “ADU” or “in-law suite” — has its own Hawaiian name: the ohana unit. When you buy a Maui property, there’s a real chance it either has an ohana dwelling already or is zoned to add one, and that’s one of the most powerful tools a multigenerational family has on this island.

If you’re considering buying together with your parents, your adult kids, or extended family on Maui, here’s what you actually need to know.

Why families are making this choice

Cost is part of the picture — Maui is an expensive housing market, and combined household income makes the math work for families who couldn’t qualify individually.

Caregiving is another big driver. Close to half of multigenerational buyers nationally cite caring for aging parents as a main reason, and that plays out even more strongly in Hawaii where multigenerational caregiving is cultural, not optional. With a large share of our local population now over 65, the question of how families handle aging parents is on a lot of minds.

Remote work changed the math too. When you’re not tied to a mainland office, living near family on Maui becomes possible in a way it wasn’t before.

And honestly, for many families, there’s the simple fact that the arrangement works. Grandparents who want to see their grandkids. Parents who want support. Adult children who can’t afford their own Maui home but could afford one together with family. The reasons usually aren’t just financial, and they usually aren’t just one thing.

The three kinds of Maui multigenerational properties

On Maui, families have three main ways to do this, and they’re legally and practically different from each other.

1. Single-family home with an ohana or accessory dwelling

This is the classic Maui setup. A main house plus a detached second structure on the same lot — typically a small one- or two-bedroom unit with its own entrance and bathroom. You’ll see the terms “ohana” and “accessory dwelling” used on Maui listings; both categories are regulated under Chapter 19.35 of the Maui County Code, and the specific rules that apply to a given property depend on its zoning and lot conditions.

New in 2026: Maui County Council passed Ordinance No. 5966 on March 20, 2026 (effective March 23, 2026), which updated the maximum size of accessory dwellings based on lot size. Under the current schedule:

• Lots up to 7,499 sq ft → accessory dwelling up to 500 sq ft
• 7,500 to 9,999 sq ft → up to 600 sq ft
• 10,000 to 21,779 sq ft → up to 720 sq ft
• 21,780 to 43,559 sq ft (roughly a half acre to one acre) → up to 840 sq ft
• 43,560 to 87,119 sq ft (one to two acres) → up to 960 sq ft
• 87,120 sq ft or more (two-plus acres) → up to 1,200 sq ft

Whether you can actually add an accessory dwelling to a specific property — and how many — depends on zoning district, lot conditions, water meter availability, parking, and wastewater capacity. None of that is universal; it’s property-by-property analysis. Please reach out when you’re considering a specific parcel and I’ll pull the zoning and confirm what’s allowed.

A note for investors: under current Maui County rules (Chapter 19.35), accessory dwellings generally aren’t permitted for short-term rental, bed-and-breakfast, or transient vacation use. The specifics can change with ordinance updates, so if vacation rental income is part of your plan, please reach out and we’ll look at the current rules for the specific property you’re considering.

2. CPR’d properties (Condominium Property Regime)

For families who want separate ownership interests — not just separate buildings on one deed — CPR is Hawaii’s answer. A CPR divides a single parcel into multiple ownership units without a full traditional subdivision. Two families can own two homes on the same parcel, each with their own deed and their own piece of the property.

CPRs are common on Upcountry acreage, on some rural Haiku and Kula parcels, and on a number of multi-home estate properties across the island. If you’re buying into a CPR, the CPR declaration is a document you’ll want to review carefully — ideally with your attorney — since it governs everything from what you can build to how you’d sell your unit down the road. I always pull CPR documents during due diligence so your attorney has what they need to review.

3. Ag-zoned properties with accessory farm dwellings

On agricultural-zoned land — common in Upcountry, Haiku, and rural Central Maui — the rules are different. Ag parcels can have what the county calls “accessory farm dwellings” alongside the main residence, under separate ag-specific regulations. This is how many of Maui’s legacy family estates ended up with three or four homes scattered across one parcel.

Ag properties come with their own requirements (water, septic, potentially a documented farm use), but for families who want more space and more privacy between generations, the Upcountry ag land option is often the cleanest answer.

Where on Maui do multigenerational properties actually exist?

Upcountry — hands down the richest inventory. Makawao, Kula, Pukalani, and the rural edges of these towns have the greatest concentration of properties with detached ohana dwellings, CPR structures, and ag parcels that can accommodate multiple households. If you’re planning for two or three generations on one property, Upcountry is almost always where the search starts.

Haiku — similar profile to Upcountry in terms of multigenerational inventory. Rural, private, larger lots, often with ohana dwellings or ag farm structures already in place.

Central Maui — Waikapu and the newer Kehalani subdivisions have a growing number of homes built with in-law quarters or ohana potential. Older Wailuku and Kahului neighborhoods occasionally have non-permitted second structures — always worth checking the permit history before assuming it’s legal.

South Maui — ohana units are less common in Kihei and Wailea because lot sizes are generally smaller and the condo-heavy market doesn’t support detached second dwellings. Maui Meadows is one of the few South Maui neighborhoods where larger lots with ohana potential do exist.

West Maui and North Shore — mixed. Spreckelsville, Kuau, and parts of Haiku overlap with the multigen inventory picture. West Maui ohana properties are rarer and usually command a significant premium.

What to verify before you fall in love with a multigenerational property

Here’s where a lot of mainland buyers get tripped up on Maui. The questions that matter:

Is the ohana or second dwelling actually permitted? You’d be surprised how often a property listing mentions “two homes” or “ohana” when the second structure was built without permits, or the permit was for an unrelated use. Unpermitted structures are a real issue in Hawaii and can affect financing, insurance, and resale. I always pull the permit history before we offer.

Water meter status. On a property with two or more dwelling units, is each unit served by the existing water meter, or would a second meter be required? County water meter availability and cost have been a moving target for years, and the answer can add tens of thousands of dollars to a project.

Septic vs. county sewer. Many Upcountry and rural properties are on septic systems, and the system’s capacity affects how many bedrooms and dwelling units the property can legally support. State rules on septic and bedroom count have been updated recently — worth a close look on any rural property.

Zoning and overlays. Agricultural, rural residential, and apartment-residential zoning all have different rules for multiple dwellings. The property’s zoning determines what’s possible.

CPR declarations and HOA documents. If the property is CPR’d or in an HOA, read everything. The documents will spell out what each unit can do, what’s shared, and how future changes are handled.

It’s the kind of work where a local Maui agent earns their fee, because the answers genuinely matter and aren’t findable on Zillow.

The professional conversations worth having before you close

Separate from the property itself, buying together as a family raises real questions — and most of them aren’t ones a real estate agent is the right person to answer. These are topics worth putting on your list to discuss with qualified professionals before you close:

Loan structure. How the mortgage is set up, who’s on it, and how everyone’s income and credit factor in. A good mortgage broker is the right person to walk your family through this.

How to hold title. There are several ways families can structure shared ownership, and the right choice depends on your specific situation and long-term goals. This is a question for an attorney — ideally one who practices real estate and estate planning in Hawaii.

A written agreement for the what-ifs. What happens if someone wants to sell their interest, needs to move, or circumstances change? Putting the answers in writing before you close is much easier than negotiating after. Your attorney can help your family draft something that fits.

Long-term and estate planning. How a property is titled can affect things down the road in ways most people don’t anticipate. An estate planning attorney and a CPA are the right professionals to map this out for your situation.

My job is to help you find the right property, confirm what’s physically and legally allowed on it, coordinate the due diligence, and negotiate a good deal. The financial, tax, legal, and estate planning pieces are genuinely outside my lane — and they’re important enough that you want the right specialists on your team.

I regularly refer my multigenerational buyer clients to Maui-based real estate attorneys, estate planning attorneys, mortgage brokers, and CPAs I trust. If you’d like introductions, just ask.

Is multigenerational living on Maui right for your family?

A few honest questions to sit with:

Is everyone actively choosing this, or is someone going along? The families I’ve worked with who thrive in multigenerational living all went in with shared intent. It’s different when one party is tolerating it because the math works or saying yes because it felt easier.

Are you picturing the daily reality, not the best-weekend version? A quiet Tuesday when you want your own space, not the holiday when everyone’s happy to be together.

Are the financial expectations explicit and fair — up front? Contributions, equity stakes, shared costs, exit provisions. Easier to define before the purchase than after.

When the answers are honest and mostly yes, multigenerational living on Maui works beautifully. And the structures are here for it — from the ohana tradition to the specific zoning rules that support it to the inventory of properties actually designed for this.

The bottom line

Multigenerational living on Maui is not a trend. It’s tradition. And the legal, architectural, and cultural infrastructure for it runs deeper here than almost anywhere else in the country. If your family is exploring this — whether it’s buying together with your parents, setting up an ohana for adult children, or planning a multi-home compound on Upcountry acreage — Maui has more options for you than most places.

The work is matching your family’s situation to the right property and the right zoning, then coordinating with the right professionals on the financial and legal pieces. That’s a lot of moving parts — and it’s exactly the kind of conversation that deserves a local agent who’s done it before.

If you want to talk it through — even at the “just exploring” stage — reach out any time.

📩 Email me at angieow@icloud.com
📱 Text or call (808)419-1982
🌐 Or send me a message through the contact form

This article is general information, not legal, tax, or financial advice. For your specific situation, please consult a licensed attorney, CPA, or financial advisor — I’m happy to make introductions to Maui professionals I work with.

Angie Olmedo Williams is a licensed Realtor® with Coldwell Banker Island Properties, serving buyers and sellers across Maui with a focus on South Maui, Upcountry, the North Shore, and West Maui.