Recovery builds, but development risks remain
- Kilroy owns a stabilized portfolio of office and life science properties located in major West Coast markets and Austin.
- Q2 2026 leasing spreads turned positive for the first time in two years, with GAAP rents up 21% and cash rents up 6.1%.
- The company has a 1 million square foot signed-but-not-commenced pipeline that secures $78 million in future annualized base rent.
- Kilroy Oyster Point Phase 2 was 49% leased at quarter end, leaving significant vacant space that drags on near-term earnings.
- Active tenant demand in San Francisco surpassed 10 million square feet in Q2 2026, largely driven by the AI ecosystem.
Strong demand meets development friction
Kilroy is a quality bet in a recovering office market. Its best buildings sit in San Francisco, San Diego, Seattle, Los Angeles, and Austin. These are markets where tech, AI, life science, and professional services tenants still want top space.
The bull case strengthened in Q2 2026. Leasing spreads turned positive for the first time in two years, with GAAP rents up 21% and cash rents up 6.1%. San Francisco is the key swing factor, where active demand hit 10 million square feet, largely fueled by AI companies. The company also secured a massive 1 million square foot signed-but-not-commenced pipeline that provides deep visibility into future revenue.
The bear case centers on development risks. Kilroy Oyster Point Phase 2 is only 49% leased, meaning the vacant half of the project is currently a drag on earnings. Additionally, the massive Flower Mart project needs local zoning approvals in San Francisco to remain economically viable before expense capitalization ends.
The stock still needs proof. Investors should watch whether the heavy tour volume at Kilroy Oyster Point Phase 2 translates into signed leases, and whether the city of San Francisco grants the required zoning changes for Flower Mart.
Rent checks from premium space
Kilroy is a REIT, which means it owns real estate and pays out much of its taxable income. It makes money by leasing office, life science, and mixed-use space to companies, then collecting rent over multi-year leases.
The model works best when Kilroy owns newer, well-located buildings that tenants pick even when the broader office market is soft. That is the flight-to-quality idea. A company may shrink its total footprint, but still pay for better space that helps bring workers back.
Kilroy also recycles capital. It sells mature or non-core assets, such as Kilroy Sabre Springs, and uses the cash for buybacks, acquisitions, or new projects. The plan only works if sale prices are good and new investments earn enough to beat the risk.
The weak spot is simple: empty space costs money. Development projects like Kilroy Oyster Point Phase 2 and Flower Mart can weigh on earnings until tenants sign leases, move in, and start paying rent.
What Kilroy owns
Class A office campuses
These are Kilroy's main rent-producing assets. They serve tech, media, and professional services tenants that want modern space in hard-to-build markets.
Life science campuses
Kilroy owns lab-ready and life science space in markets like South San Francisco and San Diego. The Nautilus acquisition in Torrey Pines added a campus in a tight life science cluster.
Kilroy Oyster Point Phase 2
KOP2 is a massive near-term swing asset. It was 49% leased as of June 30, 2026, and remains a key focus for leasing efforts.
Mixed-use properties
Assets like One Paseo mix office, retail, and other uses. They support tenant demand by creating a more active setting.
Spec suites
Spec suites are move-in ready spaces built before a tenant signs. They help Kilroy win smaller or faster-moving tenants that do not want a long buildout.
Development and redevelopment pipeline
Projects like Flower Mart can create value over time. They also bring timing risk because costs can arrive before rent does.
Mostly Bay Area and Los Angeles
The mix below uses stabilized portfolio rentable square feet from the Q1 2026 10-Q as of March 31, 2026. It excludes residential assets, development projects, and undeveloped land.
What could go wrong
KOP2 lease-up stalls
High impact · Medium oddsKilroy Oyster Point Phase 2 entered the stabilized portfolio while only partly leased. It remained 49% leased at June 30, 2026. While tour activity has spiked, the unleased space acts as a drag on near-term earnings until tenants actually sign and move in.
Flower Mart zoning issues
High impact · Medium oddsThe Flower Mart project requires a zoning pivot with the city of San Francisco to achieve viable economics. If the city does not approve the revised framework before expense capitalization stops at year-end 2026, it will create an additional earnings headwind.
Tech and life science tenants pull back
Medium impact · Medium oddsKilroy's tenant base is highly concentrated in technology and life science companies. If funding for life sciences dries up or tech companies pull back on office footprints, leasing demand could fall sharply.
Major lease expirations loom
Medium impact · High oddsThe company faces a large DIRECTV and AT&T space expiration in late 2027 in Los Angeles. Finding a replacement tenant or breaking up the space could require heavy capital spending and result in lower occupancy.
In one breath
Is Kilroy Realty mainly an office REIT?
Yes. Kilroy is mainly an office and life science REIT, with some mixed-use assets. Its stabilized portfolio holds properties across the West Coast and Austin.
Why does Kilroy Oyster Point Phase 2 matter?
It is a large life science project in South San Francisco and a key test of demand. It was 49% leased at the end of Q2 2026, so the remaining lease-up is still a major catalyst for future earnings.
What is the main bull case for KRC?
The bull case is that top-quality space keeps winning tenants. Q2 2026 leasing spreads turned positive, and active tenant demand in San Francisco reached 10 million square feet.
What is the main bear case for KRC?
The bear case is that large developments like Kilroy Oyster Point Phase 2 sit partially empty, creating an earnings drag. The company also faces a large number of lease expirations in 2026.
