Discover One Maritime Plaza in San Francisco
One Maritime Plaza is a 25-story landmark office tower that has—with its impressive stature of 398 feet—been a standout feature of San Francisco’s skyline since the late '60s. Over the decades, it has evolved into a world-class asset.
Perched in the Financial District, it allows easy access to a wealth of restaurants, bars, hotels, and cultural attractions. Near the Embarcadero Center it's also only a hop, skip, and a jump from iconic landmarks like the Ferry Building and the famed California Street cable car line. And if you’re looking to elevate your business, there’s no better address in town.
The History of One Maritime Plaza
Originally known as the Alcoa Building, One Maritime Plaza was born out of one of the earliest projects spearheaded by the San Francisco redevelopment agency. Alongside other major developments like the Embarcadero Center and Golden Gateway, this building set the stage for the city’s modern financial district.
Constructed in 1967, this building was among the first to incorporate seismic bracing using external trusses and X-braces – a nod to San Francisco’s commitment to safety in an earthquake-prone region. Designed by Skidmore, Owings & Merrill, every floor (averaging about 21,000 square feet) was envisioned with both functionality and style in mind, ensuring tenants could enjoy not only expansive workspaces but also spectacular views from multiple directions.
A Closer Look at the Design of One Maritime Plaza
Clad in striking black brick, wrapped in heavy-gauge bronze-anodized aluminum, and accented with tinted glass, the building’s exterior reflects the ever-changing play of sunlight and shadows. Its bold, X-shaped diagonal bracing system, adds to its ability to turn the heads of passersby.
Inspired by and even influencing structures like Chicago’s John Hancock Building, the building’s exterior isn’t just for show; those exposed diagonal trusses, positioned just outside the glass curtain wall, work tirelessly to resist seismic forces while partially supporting the tower’s weight.
The structural framework is engineered with precision—a series of cross braces, stacked in a 5-story grid and spaced to maximize open, flexible interior spaces. This clever design not only offers expansive, unobstructed floorplates but also ensures that the building stands strong in earthquake-prone San Francisco.
More than an Office: World-Class Features and Amenities
At One Maritime Plaza, world-class isn’t just a buzzword—it’s a promise. On-site property management teams work diligently to maintain a clean, secure, and welcoming environment.
With features such as in-building bike storage, modern showers, and a renovated lobby, every detail is designed to enhance your day-to-day experience. The building also comes with 24/7 manned security and direct access to one of the city’s largest parking garages (over 1,100 parking spaces spread across multiple underground levels).
Here is a breakdown of additional features and amenities that make this office tower a cut above the rest:
- Expansive Office Space: With more than half a million square feet of premium office space, the building offers flexible floor plans that cater to businesses of all sizes.
- Spectacular Views: North, east, and south-facing suites provide an ever-changing panorama of the city and bay, while west-facing suites offer sights of the iconic Transamerica Building and beyond.
- Enhanced Security & Accessibility: Round-the-clock security paired with a state-of-the-art underground parking facility ensures peace of mind for everyone on site.
The Plaza Garden and Sculptures at One Maritime Plaza
One Maritime Plaza isn’t just about sleek office space and killer city views—it’s also home to an elevated plaza. This second-story outdoor space was designed by landscape architects Sasaki, Walker, and Associates and has manicured garden squares, plants, art installations, and seating areas.
The art installations take the form of abstract sculptures and include works by Henry Moore, Marino Marini, Charles Perry, and Jan Peter Stern. At the heart of the plaza, a fountain designed by Robert Woodward is the centerpiece.
The plaza’s raised setting provides a unique vantage point over the surrounding skyscrapers and the nearby Embarcadero. It's the perfect place for office workers, visitors, and passersby to enjoy a quick coffee, tasty lunch, or rest their tired eyes after staring at the screen all day.
Things to Do Near One Maritime Plaza
San Francisco is packed with exciting attractions, and One Maritime Plaza is right at the heart of it all. Here are some top things to do nearby:
1. Explore the Embarcadero
Just a short walk away, the Embarcadero consists of stunning waterfront views, historic piers, and lively markets. Take a scenic stroll, enjoy a cup of coffee by the Bay, or hop on a ferry to explore nearby destinations like Sausalito.
Did you know you can easily discover more of the Embarcadero District with a CityDays’ Scavenger Hunt?!
2. Visit the Ferry Building Marketplace
A must-see for food lovers, the Ferry Building Marketplace is a treasure trove of gourmet delights. From fresh seafood to artisan cheeses and handcrafted pastries, this foodie paradise is perfect for a quick bite or a leisurely lunch.
3. Walk to Coit Tower
Feeling adventurous? Head to Coit Tower on Telegraph Hill for sweeping views of the city. The short but steep hike is worth it for the stunning vistas and historic murals inside the tower.
4. Check Out the Exploratorium
Located along the waterfront, the Exploratorium is a hands-on science museum. With interactive exhibits and mind-bending displays, it’s a fun and educational stop just minutes from One Maritime Plaza.
5. Shop and Dine at Pier 39
A short ride away, Pier 39 is the go-to for entertainment, shopping, and dining. Watch the famous sea lions, grab a bowl of clam chowder, or enjoy street performances along the pier.
6. Enjoy a Sunset at the Bay Bridge
As the day winds down, catch a sunset view of the Bay Bridge. With its dazzling evening light display, it’s a sight you won’t want to miss.
For more information about things to do in San Francisco, click here: 166 Things to Do in San Francisco | Unique Activities & Hidden Gems (2025).
Explore Beyond the One Maritime Plaza with CityDays
After checking out the One Maritime Plaza, why not extend your adventure in San Francisco with a CityDays scavenger or treasure hunt tour?
Scavenger Hunt tours are a great way to bring family and friends—or even dates and colleagues—together for an afternoon of great fun and adventure, solving clues and snapping photos. Clues will lead you to the big sights and those that you'd walk straight past.
For more information about our San Francisco Scavenger Hunts then click here: Top 6 Immersive San Francisco Scavenger Hunts & Treasure Hunts | CityDays.
