In urban Honolulu, the ground floor of a mixed-use apartment building is carrying more of the property's value than traditional underwriting often assumes. According to Erin W.J. Mitsuyoshi, CCIM, of The Bratton Team at Colliers International Hawaii, the commercial component at street level contributes both directly and indirectly to a building's performance. This insight has implications for property owners, investors, and developers in Long Beach and surrounding areas, where mixed-use development continues to gain traction.
The direct contribution is straightforward: retail rents in well-positioned buildings typically exceed residential rents on the same footprint, giving the ground floor disproportionate weight in net operating income. However, Mitsuyoshi emphasizes that the indirect contribution is frequently larger and harder to model. Well-chosen ground-floor tenants—such as a grocery store, café, or laundromat—function as building amenities that compete for residential tenants without the operating costs of a gym or roof deck. A well-maintained, visually active street frontage also shapes how the entire building is perceived by prospective residents.
At sufficient scale, the effect extends beyond the property line. Ground-floor retail shapes neighborhood character, which in turn determines who wants to live there. Ward Village, a 60-acre master-planned community in urban Honolulu, exemplifies how a deliberately assembled street-level offer can create a district identity that draws a particular kind of resident to the apartments above.
For tenants that succeed under apartments, the common thread is habitual use by residents. Daily-needs retail anchors the list, but Mitsuyoshi points to medical services and childcare as often overlooked. A daycare downstairs is used five days a week by families above, a frequency almost no retail format matches. The composition varies by neighborhood, often along cultural lines, but the principle remains: convenience is the organizing idea, and the strongest tenants are those where, as Mitsuyoshi puts it, everybody knows your name.
Underwriting mixed-use properties requires separating the residential and commercial components. Unlike standalone retail, a mixed-use building must be bifurcated: each component modeled on its own terms, then combined. Expense allocation is critical, especially in Hawaii where most commercial space is leased on a triple net basis, passing property taxes, utilities, and building expenses to tenants. The residential component does not carry those expenses on the same basis, so allocating the right percentage to each requires deliberate work rather than a pro-rata split by square footage. Buyers who skip this step tend to misstate both components, while those who do it properly often find commercial income more durable than expected.
Tenant selection also carries consequences beyond the lease. Incompatible hours—such as late-night uses below apartments—can create friction, slow residential leasing, and lead to arrears, additional security costs, or parking pressure. These ripple effects rarely appear in a rent roll but eventually show up in the operating statement. Mitsuyoshi notes that these are issues most people never see unless they sit on the ownership or property management side, making them essential to acquisition diligence.
A key question is how much of the ground floor's income the building itself generates. With one or two units, convenience retail can rely on residents filtering through constantly. A café draws perhaps once or twice a week; a laundromat weekly; childcare five days a week. A building with several ground-floor units cannot rely on residents alone and must draw from the surrounding neighborhood. This is a solvable design question that changes which tenants make sense.
For owners, the conclusion is that the street level rewards proper underwriting. Recent closed Hawaii transactions suggest buyers are increasingly pricing it that way. As Long Beach and other cities continue to embrace mixed-use development, understanding the ground floor's true value—both direct and indirect—will be crucial for maximizing property performance. The Bratton Team, a Hawaii commercial real estate and investment sales group exclusively contracted to Colliers International HI, LLC, has advised buyers and sellers across all Hawaii asset classes for 40 years. Their expertise highlights the importance of treating the ground floor as a strategic asset rather than a supplementary line.
