What Does a Healthy Office Vacancy Rate Actually Look Like?
Seattle's office market has collapsed to 36% vacancy. Here's what the numbers looked like before — and what they'd need to reach before landlords and tenants could call it a recovery.
If you follow commercial real estate in the Pacific Northwest, you've become numb to headlines about rising office vacancy. Downtown Seattle has crossed 36%. The Eastside sits above 21%. Even Tacoma — long considered a stable, secondary market — is running above 17%. But what does "bad" actually mean in context? And what would "healthy" look like if it returned?
The answer starts with understanding where the market was before everything changed.
The pre-pandemic benchmark
In 2019, the Seattle region's office vacancy rate hit a cycle low of just 5.79%, according to Kidder Mathews data. That figure represented a genuinely tight market — one where tenants had few options, landlords held pricing power, and new construction was racing to keep up with tech-driven demand from Amazon, Microsoft, and dozens of high-growth startups.
For context, commercial real estate professionals generally treat the 5–10% range as a "healthy" equilibrium for a major metro office market. Below 5% tips into undersupply, driving rents higher and squeezing tenants. Above 10–12%, the balance shifts toward tenants. And above 15–20%, you're in a market where landlords are offering months of free rent, heavy tenant improvement allowances, and still waiting months to fill space.
"Seattle's office vacancy rate is now above 33% in the central business district. It was around 8% before the pandemic."
A vacancy rate spectrum
Not all vacancy rates are equal — and the appropriate benchmark shifts slightly depending on market size and character. Here's a practical framework for interpreting office vacancy:
| Vacancy range | Market condition | Who benefits |
|---|---|---|
| 0–5% | Undersupplied | Landlords strongly favored; rents rising fast |
| 5–10% | Healthy / balanced | Fair terms for both landlords and tenants |
| 10–15% | Softening | Tenants gaining leverage; concessions increasing |
| 15–20% | Elevated stress | Tenants in control; free rent and TI allowances common |
| 20%+ | Distress | Deep concessions; landlord refinancing risk; values falling |
By that framework, the Seattle CBD at 36.5% isn't just in "distress" — it's in territory that has no modern precedent outside of cities experiencing structural economic decline. And unlike, say, Detroit or Cleveland, Seattle's fundamentals haven't collapsed: employment is diversified, the tech sector is evolving rather than shrinking, and the residential population downtown continues to grow.
How Washington counties compare right now
The vacancy picture varies enormously across the state's major office markets, and the further you move from Seattle's tech-heavy core, the healthier the numbers become.
The pattern is striking. Snohomish County, at 10.7%, sits just above the top of the healthy range — and has actually seen its vacancy rate tick slightly downward over the past year, even as King County's numbers continued climbing. Whatcom and Skagit, further removed from the tech economy that drove Seattle's boom and bust, never overbuilt and are now among the most landlord-favorable office markets in the state.
What recovery actually requires
The math of returning Seattle to a healthy vacancy rate is sobering. At current absorption rates — which have been negative or near-zero for most of the past four years — absorbing enough space to bring downtown vacancy from 36% back to a healthy 8–10% would require either years of positive net absorption, meaningful conversion of office buildings to other uses, or some combination of both.
There are some early green shoots. The pace of vacancy increase has slowed noticeably since 2023. Sublease availability, which peaked at alarming levels, has been declining steadily and is now at its lowest share since 2018. Positive net absorption was recorded for the first time in over three years in late 2025. And Seattle's emerging position as a hub for AI companies — ranking third among U.S. metros for AI industry growth — is generating genuine new leasing demand.
The bottom line: For a major tech-heavy metro like Seattle, a vacancy rate in the 8–10% range represents equilibrium. At 5.8% in 2019, the market was actually overheated. At 36.5% today, it's in historic distress. The good news: vacancy increases are decelerating, AI leasing is real, and the suburban markets — particularly Snohomish County — never lost their footing at all. Recovery will be measured in years, not quarters. But the direction is beginning to change.
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