Class A Flight to Quality: Why Trophy Office Outperforms

Introduction

Two office markets now sit inside the same buildings on the same blocks, and they are moving in opposite directions. Through the post-pandemic reset, prime trophy buildings (the newest, best-amenitized top tier of inventory) pulled tenants in while older commodity space bled them out, splitting a single asset class into a winning camp and a losing one. The headline number captures the gap: trophy office commanded roughly an 84% rent premium over the market average in Q1 2024, up from 60% in mid-2018. The premium did not simply persist through a weak office market; it widened during it.

Vacancy tells the same story from the other side. Prime buildings averaged 14.8% vacancy in Q1 2024, about 4.5 percentage points below the rest of the market, a gap that has more than doubled from 1.9 points in mid-2018. The absorption ledger is starker still: prime buildings registered 48 million square feet of positive net absorption from 2020 to 2024, while the rest of the office market logged -170 million square feet over the same window. That 218-million-square-foot swing is not cyclical noise. It is tenant demand structurally reallocating out of older Class B and C stock and into trophy product, and it is the dynamic that drives the broader structural transition reshaping the US office sector.

Class A+ / Prime / Trophy Office

The top tier of the Class A office spectrum: the newest, best-amenitized buildings in each major market (typically under 10-15 years old, carrying LEED Platinum or equivalent credentials, full amenity packages, and the strongest tenant rosters). Used interchangeably with Prime and Trophy. It is roughly the top 1-5% of office inventory in most markets, with asking rents commonly 35%+ above standard Class A.

The flight to quality is often described as a flight to amenities, but the force underneath it is financial. The reason a tenant can trade up to a far more expensive building without spending more turns on a single piece of arithmetic.

The cost-neutral upgrade

Hybrid work cut how much space companies need, and right-sizing a footprint frees the budget to pay a much higher rent per square foot. A tenant shrinking its footprint by roughly 30% while moving from tired Class B into trophy space can land at close to the same total occupancy cost even though the per-square-foot rent jumps 30% to 50%. Less space at a higher rate nets out flat, and the company exits with materially better workspace. This is the engine of the entire trend: trophy demand held up precisely because the upgrade did not have to be paid for in net dollars.

Employee experience as a return-to-office lever

Once the budget math works, the deciding factor becomes utilization. Trophy buildings with collaborative floors, fitness centers, food and beverage, outdoor terraces, and modern vertical transportation give employers a concrete reason for staff to commute in. Older Class B stock without those features struggles to pull people back, which makes its space worth less to a tenant trying to justify any office at all.

ESG mandates that commodity stock cannot meet

For a growing share of blue-chip tenants the choice is narrower still. Corporate sustainability commitments increasingly require LEED Platinum, net-zero operations, or auditable environmental reporting that older inventory cannot provide without heavy capital spend. For those occupiers, much of the Class B and C market is simply not eligible, which concentrates their demand at the top regardless of price.

The three forces compound rather than add: the cost-neutral math makes the move affordable, employee experience makes it worthwhile, and ESG eligibility narrows the field. Together they explain why this is a permanent reshaping of demand rather than a passing preference.

Laid out across the quality spectrum, the gap is less a gradient than a cliff. The top runs hot while the bottom falls away, and the middle splits depending on whether a building can pass an ESG screen:

What makes the gap structural rather than cyclical is that it held through both halves of the cycle. When demand was strong, trophy absorbed available supply fast; when demand weakened, trophy held while commodity fell harder. A premium that expands in good markets and bad is not a swing in sentiment; it is a reset in how tenants value the space itself. The pattern is not unique to the US either: prime rents in London, Paris, and the major Asian gateways have similarly decoupled from their secondary stock, as global occupiers apply the same hybrid-era and sustainability logic across their portfolios.

Demand is only half the story. The reason trophy pricing power should persist is that the supply meant to compete it away is drying up. CBRE Econometric Advisors forecast US prime office completions at 14.8M SF in 2024, falling to 4.2M SF in 2025 and just 2.6M SF in 2026, a roughly fivefold drop in two years. Construction of every office type slowed under high vacancy and brutal financing markets, and developers were especially unwilling to fund anything short of trophy. The result is the tightest possible setup for incumbents: elevated demand meeting a collapsing pipeline.

That scarcity hands a durable advantage to whoever already owns trophy stock. Established owners such as BXP, SL Green, Tishman Speyer, and Hines face less new competition for the tenants they want, supporting rent growth and stable-to-improving occupancy across their best assets. It is precisely the opposite position for a would-be entrant, who would have to build into a market where existing trophy product already commands most of the demand. This supply dynamic is one of the cleaner explanations for the performance spread inside the listed office REIT landscape, and it is a major input when valuing an office platform on the trophy versus commodity split rather than on blended sector averages.

Where LEED Lets Class B Compete

Not all of the middle tier is doomed. Class B buildings carrying LEED certification punch above their class because they clear the one screen that locks commodity stock out of blue-chip demand. The numbers are concrete: LEED Class B properties run about 180 basis points lower vacancy and command roughly a $9.18 per square foot rent premium over non-LEED Class B equivalents. The mechanism is straightforward. An ESG-mandated tenant that cannot find trophy in its preferred submarket will take LEED-certified Class B over the building next door precisely because the certification feeds its own sustainability reporting.

LEED Certification

Leadership in Energy and Environmental Design, the green-building rating system run by the US Green Building Council, with tiers from Certified through Silver, Gold, and Platinum. It documents a building's energy, water, air-quality, and other sustainability performance, and is increasingly a hard requirement for tenants with corporate ESG mandates.

That premium is what tempts owners to rehabilitate aging stock, and it is also where the trend hits its limit. Meaningful LEED-and-amenity upgrades often run $50 to $150 per SF, a heavy outlay against a depreciated Class B value. In a strong submarket where the rent uplift covers the spend, the retrofit pencils; across most weaker-market Class B inventory, it does not, and those buildings stay on the losing side of the divide. The flight to quality, in other words, is not only sorting buildings by what they are today but by which ones can afford to cross the line, and for the bulk of commodity stock that line is out of reach.