Trophy Seaport office tower trades for $435M as institutional capital returns to Boston's premier waterfront district
Rhea-AI Summary
JLL (NYSE:JLL) announced that its Capital Markets group completed the $435 million sale of One Marina Park Drive, a 494,938-square-foot Tier 1 office tower in Boston’s Seaport District. JLL represented seller Clarion Partners in the sale to Oxford Properties, in what the company describes as one of 2026’s most impactful U.S. office transactions and the largest pure-play office sale in Boston in the past five years.
The 18-story, LEED Gold- and WiredScore Platinum-certified asset is 99% leased to high-credit tenants and includes 375 below-grade parking spaces. According to JLL, the Seaport micro-market reports 98% Tier 1 occupancy, 22% Tier 1 rent growth since 2019, and significant barriers to new speculative office supply.
Positive
- $435 million Seaport office tower sale mandate completed in 2026
- Brokered 494,938-square-foot Tier 1 asset that is 99% leased
- Transaction highlighted in Boston as largest pure-play office sale in five years
- Showcases activity in a Seaport micro-market with 22% Tier 1 rent growth since 2019 and 98% Tier 1 occupancy
Negative
- None.
Key Figures
Historical Context
| Date | Event | Sentiment | 24h Move | Catalyst |
|---|---|---|---|---|
| Jul 30 | Second-quarter earnings | Positive | +6.4% | Record quarterly results and increased full-year adjusted EPS growth target |
| Jul 21 | AI market research | Neutral | -0.5% | Research described uneven AI effects across real estate markets and asset classes |
| Jul 20 | Capitalization arrangement | Neutral | -1.4% | JLL arranged $617 million of capitalization across multifamily investment vehicles |
| Jul 14 | AI workforce research | Neutral | -2.4% | Survey examined workforce growth expectations and AI-related real estate risks |
| Jul 13 | Refinancing arrangement | Neutral | -0.8% | JLL secured senior and mezzanine financing for a Chicago rental tower |
24h Move is the share-price change in the day after each event; other market factors may also have contributed.
Recent listed reactions included +6.39%, -0.46%, -1.43%, -2.35%, and -0.77%, indicating mixed outcomes.
Key Terms
leed gold technical
wiredscore platinum technical
mark-to-market financial
net effective rent growth financial
AI-generated analysis. How Rhea-AI works. Not financial advice.
JLL led the sales efforts for One Marina Park Drive, underscoring investor confidence in irreplaceable
Key Takeaways
- Historic transaction volume: The
$435 million - Institutional capital returns to
Boston : Oxford Properties' acquisition underscores growing investor confidence inBoston's innovation-driven office market, particularly for irreplaceable waterfront assets in the Seaport - Competitive process yields premium pricing: JLL's marketing campaign generated exceptional buyer interest, reflecting strong demand for trophy assets delivering locked-in cash flow, substantial rent growth potential and insurmountable barriers to entry
JLL represented the seller, Clarion Partners, in the sale of the asset to Oxford Properties. The sale represents one of 2026's most impactful office transactions and underscores institutional capital's appetite for well-located, Tier 1 assets as well as a return of institutional capital to the
One Marina Park Drive delivered in 2010 as the anchor commercial asset of The Fallon Company's
The property occupies one of
The Seaport continues to rank as a top-three nationally performing office micro-market, with
JLL's Capital Markets Investment Sales and Advisory team representing the seller was led by Executive Managing Directors Coleman Benedict and Riaz Cassum, Managing Directors Scott Carpenter and Patrick Shields, Associate Chris Barry and Analyst David Mega.
"This transaction validates what we've been seeing across premier office submarkets. Institutional capital is concentrating on irreplaceable trophy assets in supply-constrained, top-performing markets, underwriting to the data around outperformance and net effective rent growth," said Carpenter. "One Marina Park Drive offered exactly what strategic buyers are pursuing in 2026: durable in-place cash flow with a track record of outperformance, meaningful embedded mark-to-market upside, and a waterfront position with no new construction in the pipeline. The competitive tension throughout the process reaffirms that best-in-class office fundamentals continue to command premium pricing."
JLL Capital Markets is a full-service global provider of capital solutions for real estate investors and occupiers. The group's in-depth local market and global investor knowledge delivers the best-in-class solutions for clients, including investment sales and advisory, debt advisory, M&A and corporate finance, loan sales, equity & fund placement, net lease, derivative advisory and energy & infrastructure advisory. JLL Capital Markets has more than 3,000 specialists worldwide with offices in nearly 50 countries.
For more news, videos and research resources, please visit JLL's newsroom.
About JLL
JLL (NYSE:JLL) is a leading global commercial real estate services and investment management company with annual revenue of
Contact: Kristen Murphy, JLL Director, Public Relations
Phone: +1 617 543 4873
Email: kristen.murphy@jll.com
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SOURCE JLL