Kailua 4plexes: Buy a Fourplex and House Hack in Kailua
Kailua is Oahu's windward jewel and the priciest market in this batch: about 39,640 people, a median household income of $148,582, and a typical home value of $1,526,023. A fourplex here is a luxury-market purchase by any measure, and the buyer who succeeds is the one who underwrites it as one — not as a mainland cash-flow deal transplanted to a beach town.
Kailua by the Numbers
Windward Oahu's Kailua Bay community counts about 39,640 residents. Kailua is a census-designated place, not an incorporated city; Honolulu is the state's only incorporated city. Because no yearly Vintage figure is published for this CDP, its population entry uses the ACS 2024 5-year estimate (table B01003), with that vintage stated plainly. Median household income reaches $148,582, the highest of the eighteen cities in this batch, while the typical home value stands at $1,526,023. Income, rent, and earnings below all come from ACS 2024 5-year estimates, Kailua being below the 65,000 cutoff for one-year releases.
| Population (ACS 2024 5-year estimate) | 39,640 |
|---|---|
| State capital | Honolulu |
| Median household income (ACS 2024 5-year, B19013) | $148,582 |
| Households earning under $50,000 (ACS 2024 5-year, B19001) | 12.4% |
| Households earning $50,000 to $99,999 (ACS 2024 5-year, B19001) | 18.3% |
| Households earning $100,000 to $199,999 (ACS 2024 5-year, B19001) | 36.0% |
| Households earning $200,000 or more (ACS 2024 5-year, B19001) | 33.3% |
| Median gross rent (ACS 2024 5-year, B25064) | $3,093 per month |
| Median earnings, all workers 16 and older (ACS 2024 5-year, B20017) | $65,882 |
| Typical home value (ZHVI, September 2026) | $1,526,023 |
Do the division and the warning is stark: $3,093 of median monthly rent, times twelve months, equals just 2.43% of a $1,526,023 typical home value. Kailua's rent is the highest in this batch and still the weakest cover for price — a rough gauge, not income, and the bluntest signal in these eighteen pages that median rents alone do not carry a median Kailua purchase.
Sources: U.S. Census Bureau, American Community Survey 2024 5-year estimates (tables B01003, B19001, B25064, B20017); Zillow Research ZHVI, September 2026.
Buying a 4plex in Kailua
What little small-multifamily stock exists in Kailua is mostly older beach-town housing, not purpose-built fourplexes, and it competes against owner-occupant buyers who value the location rather than the rent roll. Prices therefore track the single-family market next door. In practice the strongest offer tends to pair strong financing with few contingencies, so your inspection, rent verification, and insurance quotes need to happen before you bid, not after.
Who rents here matters as much as what they pay. A third of households (33.3%) earn $200,000 or more, and the tenant pool blends Marine Corps Base Hawaii families, professionals, and long-term windward-side renters drawn by the beaches and the town center. Premium rents come with premium expectations: current systems, real parking, and usable outdoor space are the baseline, not upgrades.
Buyer Help and Loans in Kailua
Loan size, not loan type, is usually the first constraint at Kailua prices — limits, jumbo thresholds, down-payment weight, and insurance all shift the monthly payment more than a quarter-point of rate. Before offering, have a lender model the complete monthly figure for each program on the Loan Types page that they actually close for 2-4 unit owner-occupied purchases in Hawaii.
Stack FHA, conventional, and VA side by side on the same property when you are eligible for VA, which matters near the base — but judge lenders on execution too. At this price level, a lender who has closed Kailua-area purchases before is worth more than a slightly lower quote from one who has not, and the Loan Types page supplies the program facts to test both against.
Living in Kailua
Kailua Beach Park, with white sand and turquoise water along Oahu's windward coast.
An owner-occupant in Kailua wakes up to one of America's best-regarded beaches, Lanikai's shoreline, and a town center you can walk — and to the highest entry price in this batch. The buyer this market suits arrives with a large down payment, a long horizon, and a clear-eyed view of what median rents actually cover.