Operating Expense Ratios Look Different in Multifamily, Here's Why

Compare an industrial building's operating expense ratio to a multifamily property's and the gap is stark. Industrial assets typically run 15 to 25% of gross income in operating expenses. Multifamily commonly runs 35 to 50%. That's not a sign multifamily is poorly managed. It's a structural fact about what running a multifamily property actually requires, and understanding why changes how a buyer should read that ratio.

Triple Net Leases Are Why Industrial Runs So Low

The earlier piece in this series on industrial specs touched on why so many industrial leases push operating costs onto the tenant directly. In a triple net structure, the tenant pays taxes, insurance, and maintenance themselves, which means almost none of that cost ever shows up on the landlord's expense line. Multifamily doesn't work that way. A resident's lease covers their unit and nothing else; the landlord is responsible for everything outside that unit's four walls, which is a fundamentally larger scope of ongoing cost.

Turnover Is the Expense Category That Doesn't Exist Elsewhere

A multifamily property turns over tenants constantly, typically once a year or more per unit, and every turnover triggers a real cost: cleaning, painting, minor repairs, marketing the vacant unit, and the leasing staff time to re-lease it. An office tenant might stay five to ten years. An industrial tenant, as the earlier piece in this series covered, often signs a lease running a decade or longer. Multifamily's turnover cycle means the property is perpetually mid-transition on some percentage of its units, and that transition cost recurs in a way no other asset class experiences at the same frequency.

Staffing Is a Line Item Multifamily Can't Avoid

Multifamily properties, especially larger ones, typically carry on-site staff: leasing agents, maintenance technicians, sometimes a full-time property manager. That payroll cost sits directly on the operating statement. Office and industrial properties lean much more heavily on third-party management contracts and don't need the same on-site presence a residential-style tenant base expects. Class A multifamily properties in high-cost markets often run toward the higher end of the expense ratio range specifically because amenity-heavy properties require more staff to maintain the amenities that justify the rent.

Utilities Get Split in Ways That Don't Apply to Other Asset Classes

Depending on how a multifamily property is metered, the owner may be covering water, common-area electricity, gas for shared systems, or in some older properties, unit-level utilities that were never separately metered to begin with. Retrofitting a property with submetering is a real capital cost that many owners haven't made, which means a meaningful share of multifamily buildings are still carrying utility expenses that a properly submetered property, or virtually any industrial or retail asset, wouldn't carry at all.

A High Ratio Isn't Automatically a Red Flag

An operating expense ratio pushing toward the higher end of the 35 to 50% range isn't automatically evidence of mismanagement. It can just as easily reflect a higher-amenity Class A property with the staffing and maintenance costs that come with the territory. What matters in underwriting is comparing a property's ratio to genuinely similar properties, same class, same market, same vintage, rather than assuming a single "good" number applies across every multifamily asset. A ratio significantly outside the norm for its comparable set, in either direction, is the actual signal worth investigating, not the raw number itself.

Reading the Ratio in Context

None of this makes multifamily a worse investment than industrial or office. It means the expense side of a multifamily deal has more moving parts, and a buyer comparing a multifamily opportunity against an industrial one needs to expect that difference rather than treating both ratios as measuring the same thing. Property class and unit count, both visible on a Hutfin listing, are the starting point for finding the right comparable set before judging whether a specific property's expense ratio is actually a problem.

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