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3401 Fairfax Dr
Arlington, VA 22201 Ballston/Virginia Square

Rate Upon Request

Office For Lease  •  1,790+ SF

Property Details

  • Property Type Office
  • Year Built 2024
  • Total Building Size 313,165 SF
  • Tenancy Multiple
  • Building Class A
  • Zoning C-3
70 Transit Score
80 Walk Score

8 Spaces Available

Name Space Use Size Rent Details
4th Floor Ste 4200 Office 1,790 SF Rate Upon Request 
Shell condition
? Generous ceiling heights (13’4” slab to slab) that offer an expansive feel and maximize natural light
? Multiple signage options for prime branding visibility
? 1.202 core factor for efficient design
? Virtually column-free floors
? Space available built to NISPOM standards
? Destination dispatch elevators

Strategically located in the Rosslyn-Ballston corridor and in partnership 
with George Mason University, Fuse serves as a dynamic hub for 
innovators, researchers, and entrepreneurs to collaborate and thrive in a 
state-of-the-art trophy office environment.
Through integrated workspaces and curated programming, Fuse fosters 
the exchange of ideas and enables seamless collaboration between 
industry partners, and the broader innovation community—accelerating 
progress and driving meaningful change.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Full Service Gross
  • Built out as: Standard Office
  • Space Type: Relet
4th Floor Ste 4220 Office 3,000-14,117 SF Rate Upon Request 
Shell condition
? Generous ceiling heights (13’4” slab to slab) that offer an expansive feel and maximize natural light
? Multiple signage options for prime branding visibility
? 1.202 core factor for efficient design
? Virtually column-free floors
? Space available built to NISPOM standards
? Destination dispatch elevators

Strategically located in the Rosslyn-Ballston corridor and in partnership 
with George Mason University, Fuse serves as a dynamic hub for 
innovators, researchers, and entrepreneurs to collaborate and thrive in a 
state-of-the-art trophy office environment.
Through integrated workspaces and curated programming, Fuse fosters 
the exchange of ideas and enables seamless collaboration between 
industry partners, and the broader innovation community—accelerating 
progress and driving meaningful change.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Full Service Gross
  • Space Type: Relet
5th Floor Ste 5210 Office 3,000-12,663 SF Rate Upon Request 
SCIF-ready space

Shell condition
? Generous ceiling heights (13’4” slab to slab) that offer an expansive feel and maximize natural light
? Multiple signage options for prime branding visibility
? 1.202 core factor for efficient design
? Virtually column-free floors
? Space available built to NISPOM standards
? Destination dispatch elevators

Strategically located in the Rosslyn-Ballston corridor and in partnership 
with George Mason University, Fuse serves as a dynamic hub for 
innovators, researchers, and entrepreneurs to collaborate and thrive in a 
state-of-the-art trophy office environment.
Through integrated workspaces and curated programming, Fuse fosters 
the exchange of ideas and enables seamless collaboration between 
industry partners, and the broader innovation community—accelerating 
progress and driving meaningful change.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Full Service Gross
  • Space Type: Relet
6th Floor Ste 6200 Office 3,000-10,069 SF Rate Upon Request 
Shell condition
? Generous ceiling heights (13’4” slab to slab) that offer an expansive feel and maximize natural light
? Multiple signage options for prime branding visibility
? 1.202 core factor for efficient design
? Virtually column-free floors
? Space available built to NISPOM standards
? Destination dispatch elevators

Strategically located in the Rosslyn-Ballston corridor and in partnership 
with George Mason University, Fuse serves as a dynamic hub for 
innovators, researchers, and entrepreneurs to collaborate and thrive in a 
state-of-the-art trophy office environment.
Through integrated workspaces and curated programming, Fuse fosters 
the exchange of ideas and enables seamless collaboration between 
industry partners, and the broader innovation community—accelerating 
progress and driving meaningful change.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Full Service Gross
  • Space Type: Relet
7th Floor Ste 7200 Office 3,000-10,111 SF Rate Upon Request 
Shell condition
? Generous ceiling heights (13’4” slab to slab) that offer an expansive feel and maximize natural light
? Multiple signage options for prime branding visibility
? 1.202 core factor for efficient design
? Virtually column-free floors
? Space available built to NISPOM standards
? Destination dispatch elevators

Strategically located in the Rosslyn-Ballston corridor and in partnership 
with George Mason University, Fuse serves as a dynamic hub for 
innovators, researchers, and entrepreneurs to collaborate and thrive in a 
state-of-the-art trophy office environment.
Through integrated workspaces and curated programming, Fuse fosters 
the exchange of ideas and enables seamless collaboration between 
industry partners, and the broader innovation community—accelerating 
progress and driving meaningful change.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Full Service Gross
  • Space Type: Relet
7th Floor Ste 7202 Office 3,430 SF Rate Upon Request 
Shell condition
? Generous ceiling heights (13’4” slab to slab) that offer an expansive feel and maximize natural light
? Multiple signage options for prime branding visibility
? 1.202 core factor for efficient design
? Virtually column-free floors
? Space available built to NISPOM standards
? Destination dispatch elevators

Strategically located in the Rosslyn-Ballston corridor and in partnership 
with George Mason University, Fuse serves as a dynamic hub for 
innovators, researchers, and entrepreneurs to collaborate and thrive in a 
state-of-the-art trophy office environment.
Through integrated workspaces and curated programming, Fuse fosters 
the exchange of ideas and enables seamless collaboration between 
industry partners, and the broader innovation community—accelerating 
progress and driving meaningful change.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Full Service Gross
  • Space Type: Relet
8th Floor Ste 8201 Office 17,835 SF Rate Upon Request 
Shell condition
? Generous ceiling heights (13’4” slab to slab) that offer an expansive feel and maximize natural light
? Multiple signage options for prime branding visibility
? 1.202 core factor for efficient design
? Virtually column-free floors
? Space available built to NISPOM standards
? Destination dispatch elevators

Strategically located in the Rosslyn-Ballston corridor and in partnership 
with George Mason University, Fuse serves as a dynamic hub for 
innovators, researchers, and entrepreneurs to collaborate and thrive in a 
state-of-the-art trophy office environment.
Through integrated workspaces and curated programming, Fuse fosters 
the exchange of ideas and enables seamless collaboration between 
industry partners, and the broader innovation community—accelerating 
progress and driving meaningful change.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Full Service Gross
  • Space Type: Relet
  • In Contiguous block: 44,560 SF
9th Floor Ste 9201 Office 26,725 SF Rate Upon Request 
Shell condition
? Generous ceiling heights (13’4” slab to slab) that offer an expansive feel and maximize natural light
? Multiple signage options for prime branding visibility
? 1.202 core factor for efficient design
? Virtually column-free floors
? Space available built to NISPOM standards
? Destination dispatch elevators
Instant conference room booking with Fuse App

Matterport: https://my.matterport.com/show/?m=AY7XBnddALb
Office-to-parking access – 1.5 spaces/1,000 SF
Two blocks from Metro
Fitness studio
Multiple signage options for prime branding visibility
1.202 core factor for efficient design
Virtually column-free floors
Strategically located in the Rosslyn-Ballston corridor and in partnership 
with George Mason University, Fuse serves as a dynamic hub for 
innovators, researchers, and entrepreneurs to collaborate and thrive in a 
state-of-the-art trophy office environment.
Through integrated workspaces and curated programming, Fuse fosters 
the exchange of ideas and enables seamless collaboration between 
industry partners, and the broader innovation community—accelerating 
progress and driving meaningful change.

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Full Service Gross
  • Space Type: Relet
  • In Contiguous block: 44,560 SF

Description 

Fuse at Mason Square is a one-of-a-kind research and technology hub providing an innovation destination with best-in-class amenities in the prominent Rosslyn-Ballston corridor. With purpose-driven research labs and business office space at its core, this 10-story building boasts a striking centralized ground-floor atrium, expansive lobby, and a spacious green roof accompanied by multiple terraces. Fuse offers an environment to support flexible collaboration directly or indirectly with early-stage, emerging growth, and established technology companies. Various suites and full-floor opportunities are available where academic and industry spaces may be co-located on several building floors and spread around unique collaboration zones to spark innovative and entrepreneurial business opportunities.
   
A retreat for digital innovators, researchers, and entrepreneurs to interact and thrive, Fuse at Mason Square combines customizable, secure facilities with world-class convening spaces and amenities. Tenants will have access to the superior advantages of this all-encompassing advanced technology haven, from bespoke labs and infrastructure to an unmatched location as the area’s largest concentration of research collaboration between public institutions and industry partners. Specialized labs are on-site for robotics, VR, simulation, and security data visualization. Additional trophy-level amenities include an elevated terrace café, a podcast studio/media conference room, a large conference center, a digital fitness studio, and a supportive tech concierge.
   
Ideally located at the center of the Rosslyn-Ballston tech corridor, Fuse is at the epicenter of an emerging innovation district, serving as a beacon for tech talent, new partnerships, new companies, innovation, and inclusive economic development. The community provides easy access to Interstate 66, delivering a seamless connection into DC within minutes. Multiple Metro stops in the neighborhood help make commuting a breeze. Discover the opportunity to co-locate in a new state-of-the-art facility in a unique urban destination for research, learning, and economic development, continuing to grow as a global innovation powerhouse.

Highlights

Cutting-edge, purpose-built smart technology building centered on innovation, offering flexible lab and office space with customization options.
Supports large-scale flexible conference facilities that can accommodate up to 750 people, with direct access to host an additional 1,400 people.
Unique features such as a podcast studio and specialized labs, including robotics, VR, simulation, network, data visualization, and secure facilities.
Additional on-site conveniences include a fitness center, conferencing options, and outdoor amenities.
Access to the region's biggest tech talent pipeline, world-class faculty, specialized labs, equipment, and secure facilities.
Situated in a prominent tech corridor with easy access to Interstate 66 and within walking distance of two Metro stations and numerous restaurants.

Property Flyers

Green Rating

LEED Platinum

Amenities

  • 24 Hour Access
  • Atrium
  • Banking
  • Bus Line
  • Controlled Access
  • Concierge
  • Conferencing Facility
  • Convenience Store
  • Courtyard
  • Fitness Center
  • Food Service
  • Metro/Subway
  • Restaurant
  • Security System
  • Signage
  • Roof Terrace
  • Car Charging Station
  • Demised WC facilities
  • High Ceilings
  • Direct Elevator Exposure
  • Natural Light
  • Wi-Fi
  • Outdoor Seating
  • Air Conditioning
  • Balcony

Major Tenants

Tenant SF Occupied Lease End Date
Cybastion
George Mason University
Oasis
Vannevar Labs
Wood & Iron Gameday Restaurant And Bar 4/1/2035

Public Transportation

Commuter RailDriveWalkDistance
11 min - 5.1 mi
Union Station (Red Line - Washington Metropolitan Area Transit Authority Metrorail (Metrorail)) 14 min - 6.4 mi
AirportDriveWalkDistance
Ronald Reagan Washington Ntl 13 min - 5.3 mi
Washington Dulles International 37 min - 22.5 mi
Baltimore/Washington International Thurgood Marshall 56 min - 36.2 mi

Parking Details

Parking Available: Yes
Reserved: No
Type: Covered
Included in Rent: Yes
Brett Schweitzer 571-365-0997 CBRE
Brett Schweitzer 571-365-0997 CBRE