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A leasing tour is a short window. A prospective tenant walks through the lobby, rides the elevator, and sees two or three suites, all in under an hour. In that time, they are absorbing an impression of the building far more than they are absorbing square-footage figures or amenity lists — those come later, in the follow-up email. What they carry out the door is a feeling: does this building feel cared for, current, and worth the rent being asked.
Scent is one of the few variables in that impression a property team can actually control on a day-to-day basis. Paint, finishes, and furniture are capital decisions made years apart. Lighting and cleanliness matter but are largely table stakes — tenants notice their absence more than their presence. Ambient fragrance, by contrast, is immediate, consistent, and renewable. A well-matched scent in the entry sequence signals attention to detail before a tenant has read a single line of a lease.
Research on ambient scent in commercial and retail environments consistently links a pleasant, well-matched fragrance to longer dwell time, more favorable perceptions of cleanliness and quality, and better recall of the space afterward. None of that requires a tenant to consciously register that a building is scented — in fact, the strongest programs are the ones no one mentions, because the space simply reads as well-kept. The failure mode is the opposite: a lobby that smells like nothing, or worse, like whatever a nearby restaurant exhaust or parking garage happens to be putting into the air that day.
The closest thing to a controlled test in a working building
It comes from an unlikely place: a German railway. Researchers ran two field experiments on commuter trains, diffusing a restrained jasmine, melon and violet-leaf scent through the trains' existing air-conditioning system — the same delivery method used in a building with central air handling. Passengers riding the scented coaches rated service quality, the overall experience, and the value they were receiving higher than passengers in unscented coaches.
The second study ran for four months. Those gains held throughout, and grew larger than the single-journey effects. Two weeks after the scent was switched off entirely, ratings for experience and value had still not significantly declined. Only about a quarter of passengers consciously registered that anything had been added to the air at all.
Two caveats belong with it. The samples were modest — 204 people in the first study, and 35 who completed every wave of the four-month one — and a commuter train is not an office lobby. But it is a real service environment, measured over months, with fragrance delivered through the building's own air handling rather than a diffuser in a laboratory. For a property team weighing whether a lobby program holds up past the first week, that is a good deal closer to the real question than most of the literature gets.
One controlled study is worth singling out alongside it, because it measured something closer to what a lobby or a tenant lounge is actually for. In a laboratory comparison at the University of Nevada, Las Vegas, adding an ambient scent to an otherwise identical room produced significantly more social interaction among the people in it. It was a campus waiting room rather than a working building, so it establishes a mechanism rather than a result — but for amenity floors and tenant lounges, whose value is judged by whether people actually use them, that mechanism is the relevant one. What the study found, and what it does not show →
Where the lobby effect shows up on the P&L
Property teams tend to think of scent as a soft amenity, but its effects land in measurable places. Leasing agents report that prospects form snap judgments in common areas that carry into suite tours — a strong first impression makes every subsequent space look better maintained by association. At renewal time, the same dynamic works in reverse: tenants who have spent two or three years walking through a building that consistently feels considered are less inclined to shop competing buildings, even when a competitor's base rent is marginally lower. Consistency, not novelty, is what builds that trust.
Amenity spaces carry their own version of the effect. Fitness centers, tenant lounges, and conference centers are exactly the spaces landlords point to when justifying rent premiums, and they are also the spaces most vulnerable to odor problems — sweat, cleaning chemicals, food service. A tuned fragrance program in these zones does double duty: it masks the odors that would otherwise undercut the amenity story, and it reinforces the premium feel the amenity is meant to convey.
What "well-matched" actually means
A scent that reads as generic air freshener works against a building's positioning rather than for it. The fragrance families that suit a Class A office lobby — clean, low-intensity, often woody or lightly citrus notes — are deliberately different from what suits a boutique hotel or a retail concourse. Matching the fragrance to building class and tenant profile, calibrated by HVAC zone and traffic pattern, is what separates a program that reads as intentional from one that reads as an afterthought. That match, applied consistently and tuned over time, is the actual mechanism behind the lobby effect.
This piece is part of our work in commercial property scenting. Related reading: Piloting Before Portfolio-Wide Rollout: A Commercial Real Estate Scent Program Case Study.