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300 M Street, SE 300 M St SE 2,627 - 117,746 SF of 4-Star Office Space Available in Washington, DC 20003

Office Spaces District of Columbia Washington 300 M St SE, Washington, DC 20003

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HIGHLIGHTS

  • Located near public transportation.
  • On-site property manager.

ALL AVAILABLE SPACES(10)

Display Rental Rate as

  • SPACE
  • SIZE
  • TERM
  • RENTAL RATE
  • SPACE USE
  • CONDITION
  • AVAILABLE
  • 2nd Floor, Ste 200
  • 12,350 SF
  • Negotiable
  • $62.55 CAD/SF/YR $5.21 CAD/SF/MO $772,487 CAD/YR $64,374 CAD/MO
  • Office
  • Full Build-Out
  • Now
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

This space has Elevator lobby exposure. Office intensive configuration.

  • Rate includes utilities, building services and property expenses
  • Easily accessible.
  • 2 Conference Rooms
  • 2nd Floor, Ste 220
  • 6,361 SF
  • Negotiable
  • $62.55 CAD/SF/YR $5.21 CAD/SF/MO $397,878 CAD/YR $33,156 CAD/MO
  • Office
  • Full Build-Out
  • 2027-03-01
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • 3rd Floor, Ste 300
  • 14,785 SF
  • Negotiable
  • $62.55 CAD/SF/YR $5.21 CAD/SF/MO $924,795 CAD/YR $77,066 CAD/MO
  • Office
  • Full Build-Out
  • Now
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

This space has direct elevator lobby exposure. Current layout features large conferencing center at suite entry, with a mix of open plan and offices throughout balance of space.

  • Rate includes utilities, building services and property expenses
  • 1 Conference Room
  • 10 Private Offices
  • Easily accessible.
  • 4th Floor, Ste 420
  • 4,684 SF
  • Negotiable
  • $63.24 CAD/SF/YR $5.27 CAD/SF/MO $296,237 CAD/YR $24,686 CAD/MO
  • Office
  • Full Build-Out
  • Now
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

This space has an office intensive layout. Efficient layout with 9 windowed offices.

  • Rate includes utilities, building services and property expenses
  • Easily accessible.
  • 1 Conference Room
  • 6th Floor, Ste 620
  • 2,627 SF
  • Negotiable
  • $63.94 CAD/SF/YR $5.33 CAD/SF/MO $167,969 CAD/YR $13,997 CAD/MO
  • Office
  • Full Build-Out
  • Now
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
  • Rate includes utilities, building services and property expenses
  • Can be combined with additional space(s) for up to 17,272 SF of adjacent space
  • 6th Floor, Ste 640
  • 14,645 SF
  • Negotiable
  • $63.94 CAD/SF/YR $5.33 CAD/SF/MO $936,395 CAD/YR $78,033 CAD/MO
  • Office
  • Full Build-Out
  • Now
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
  • Rate includes utilities, building services and property expenses
  • Can be combined with additional space(s) for up to 17,272 SF of adjacent space
  • 6th Floor, Ste 650
  • 6,081 SF
  • Negotiable
  • $63.94 CAD/SF/YR $5.33 CAD/SF/MO $388,816 CAD/YR $32,401 CAD/MO
  • Office
  • Full Build-Out
  • Now
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
  • Rate includes utilities, building services and property expenses
  • 7th Floor, Ste 700
  • 20,000-39,430 SF
  • Negotiable
  • $65.33 CAD/SF/YR $5.44 CAD/SF/MO $2,575,943 CAD/YR $214,662 CAD/MO
  • Office
  • Shell Space
  • Now
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

Full floor available in free standing building with windows on all sides.

  • Rate includes utilities, building services and property expenses
  • Easily accessible.
  • 2 Private Offices
  • 8th Floor, Ste 830
  • 6,559 SF
  • Negotiable
  • $65.33 CAD/SF/YR $5.44 CAD/SF/MO $428,496 CAD/YR $35,708 CAD/MO
  • Office
  • Full Build-Out
  • Now
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

This space is located on the top floor with direct elevator exposure. Great window line and natural light overlooking M Street.

  • Rate includes utilities, building services and property expenses
  • 8th Floor, Ste 850
  • 10,224 SF
  • Negotiable
  • $65.33 CAD/SF/YR $5.44 CAD/SF/MO $667,929 CAD/YR $55,661 CAD/MO
  • Office
  • Full Build-Out
  • 60 Days
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

This space is located on the top floor. Great window line and natural light.

  • Rate includes utilities, building services and property expenses
Space Size Term Rental Rate Space Use Condition Available
2nd Floor, Ste 200 12,350 SF Negotiable $62.55 CAD/SF/YR $5.21 CAD/SF/MO $772,487 CAD/YR $64,374 CAD/MO Office Full Build-Out Now
2nd Floor, Ste 220 6,361 SF Negotiable $62.55 CAD/SF/YR $5.21 CAD/SF/MO $397,878 CAD/YR $33,156 CAD/MO Office Full Build-Out 2027-03-01
3rd Floor, Ste 300 14,785 SF Negotiable $62.55 CAD/SF/YR $5.21 CAD/SF/MO $924,795 CAD/YR $77,066 CAD/MO Office Full Build-Out Now
4th Floor, Ste 420 4,684 SF Negotiable $63.24 CAD/SF/YR $5.27 CAD/SF/MO $296,237 CAD/YR $24,686 CAD/MO Office Full Build-Out Now
6th Floor, Ste 620 2,627 SF Negotiable $63.94 CAD/SF/YR $5.33 CAD/SF/MO $167,969 CAD/YR $13,997 CAD/MO Office Full Build-Out Now
6th Floor, Ste 640 14,645 SF Negotiable $63.94 CAD/SF/YR $5.33 CAD/SF/MO $936,395 CAD/YR $78,033 CAD/MO Office Full Build-Out Now
6th Floor, Ste 650 6,081 SF Negotiable $63.94 CAD/SF/YR $5.33 CAD/SF/MO $388,816 CAD/YR $32,401 CAD/MO Office Full Build-Out Now
7th Floor, Ste 700 20,000-39,430 SF Negotiable $65.33 CAD/SF/YR $5.44 CAD/SF/MO $2,575,943 CAD/YR $214,662 CAD/MO Office Shell Space Now
8th Floor, Ste 830 6,559 SF Negotiable $65.33 CAD/SF/YR $5.44 CAD/SF/MO $428,496 CAD/YR $35,708 CAD/MO Office Full Build-Out Now
8th Floor, Ste 850 10,224 SF Negotiable $65.33 CAD/SF/YR $5.44 CAD/SF/MO $667,929 CAD/YR $55,661 CAD/MO Office Full Build-Out 60 Days

2nd Floor, Ste 200

Size
12,350 SF
Term
Negotiable
Rental Rate
$62.55 CAD/SF/YR $5.21 CAD/SF/MO $772,487 CAD/YR $64,374 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 220

Size
6,361 SF
Term
Negotiable
Rental Rate
$62.55 CAD/SF/YR $5.21 CAD/SF/MO $397,878 CAD/YR $33,156 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
2027-03-01

3rd Floor, Ste 300

Size
14,785 SF
Term
Negotiable
Rental Rate
$62.55 CAD/SF/YR $5.21 CAD/SF/MO $924,795 CAD/YR $77,066 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

4th Floor, Ste 420

Size
4,684 SF
Term
Negotiable
Rental Rate
$63.24 CAD/SF/YR $5.27 CAD/SF/MO $296,237 CAD/YR $24,686 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

6th Floor, Ste 620

Size
2,627 SF
Term
Negotiable
Rental Rate
$63.94 CAD/SF/YR $5.33 CAD/SF/MO $167,969 CAD/YR $13,997 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

6th Floor, Ste 640

Size
14,645 SF
Term
Negotiable
Rental Rate
$63.94 CAD/SF/YR $5.33 CAD/SF/MO $936,395 CAD/YR $78,033 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

6th Floor, Ste 650

Size
6,081 SF
Term
Negotiable
Rental Rate
$63.94 CAD/SF/YR $5.33 CAD/SF/MO $388,816 CAD/YR $32,401 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

7th Floor, Ste 700

Size
20,000-39,430 SF
Term
Negotiable
Rental Rate
$65.33 CAD/SF/YR $5.44 CAD/SF/MO $2,575,943 CAD/YR $214,662 CAD/MO
Space Use
Office
Condition
Shell Space
Available
Now

8th Floor, Ste 830

Size
6,559 SF
Term
Negotiable
Rental Rate
$65.33 CAD/SF/YR $5.44 CAD/SF/MO $428,496 CAD/YR $35,708 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

8th Floor, Ste 850

Size
10,224 SF
Term
Negotiable
Rental Rate
$65.33 CAD/SF/YR $5.44 CAD/SF/MO $667,929 CAD/YR $55,661 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
60 Days
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

2nd Floor, Ste 200

300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
Size 12,350 SF
Term Negotiable
Rental Rate $62.55 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

This space has Elevator lobby exposure. Office intensive configuration.

  • Rate includes utilities, building services and property expenses
  • 2 Conference Rooms
  • Easily accessible.
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Suite 220 plan

2nd Floor, Ste 220

300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
Size 6,361 SF
Term Negotiable
Rental Rate $62.55 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available 2027-03-01

  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

3rd Floor, Ste 300

300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
Size 14,785 SF
Term Negotiable
Rental Rate $62.55 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

This space has direct elevator lobby exposure. Current layout features large conferencing center at suite entry, with a mix of open plan and offices throughout balance of space.

  • Rate includes utilities, building services and property expenses
  • 10 Private Offices
  • 1 Conference Room
  • Easily accessible.
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

4th Floor, Ste 420

300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
Size 4,684 SF
Term Negotiable
Rental Rate $63.24 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

This space has an office intensive layout. Efficient layout with 9 windowed offices.

  • Rate includes utilities, building services and property expenses
  • 1 Conference Room
  • Easily accessible.
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

6th Floor, Ste 620

300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
Size 2,627 SF
Term Negotiable
Rental Rate $63.94 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

  • Rate includes utilities, building services and property expenses
  • Can be combined with additional space(s) for up to 17,272 SF of adjacent space
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

6th Floor, Ste 640

300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
Size 14,645 SF
Term Negotiable
Rental Rate $63.94 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

  • Rate includes utilities, building services and property expenses
  • Can be combined with additional space(s) for up to 17,272 SF of adjacent space
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

6th Floor, Ste 650

300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
Size 6,081 SF
Term Negotiable
Rental Rate $63.94 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

  • Rate includes utilities, building services and property expenses
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

7th Floor, Ste 700

300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
Size 20,000-39,430 SF
Term Negotiable
Rental Rate $65.33 CAD/SF/YR
Space Use Office
Condition Shell Space
Available Now

Full floor available in free standing building with windows on all sides.

  • Rate includes utilities, building services and property expenses
  • 2 Private Offices
  • Easily accessible.
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

8th Floor, Ste 830

300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
Size 6,559 SF
Term Negotiable
Rental Rate $65.33 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

This space is located on the top floor with direct elevator exposure. Great window line and natural light overlooking M Street.

  • Rate includes utilities, building services and property expenses
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan

8th Floor, Ste 850

300 M St SE, Washington, DC for lease Floor Plan- Image 1 of 1
Floor Plan
Size 10,224 SF
Term Negotiable
Rental Rate $65.33 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available 60 Days

This space is located on the top floor. Great window line and natural light.

  • Rate includes utilities, building services and property expenses

PROPERTY OVERVIEW

Class A office building with many amenities including a fitness center and property manager on site.

  • 24 Hour Access
  • Atrium
  • Bus Line
  • Fitness Center
  • Metro/Subway
  • Property Manager on Site
  • Restaurant
  • Security System
  • Central Heating
  • Natural Light
  • Air Conditioning
  • Smoke Detector

PROPERTY FACTS

Building Type
Office
Year Built
2001
LoopNet Rating
4 Star
Building Height
8 Stories
Building Size
285,171 SF
Building Class
A
Typical Floor Size
37,000 SF
Unfinished Ceiling Height
10’
Parking
Surface Parking
304 Covered Parking Spaces at $361 CAD/month
Reserved Parking at $723 CAD/month

ATTACHMENTS

300 M_Brochure - 9.2025
1 1
Walk Score®
Walker's Paradise (95)
Transit Score®
Excellent Transit (82)
Bike Score®
Biker's Paradise (90)
What is a Walk Score®, Transit Score® & Bike Score®?
Walk Score® measures the walkability of any address.
Transit Score® measures access to public transit.
Bike Score® measures bikeability of a location.
What is a Walk Score®
, Transit Score® & Bike Score?
Walk Score® measures the walkability
of any address. Transit Score®
measures access to public transit. Bike Score®
measures bikeability of a location.®
Learn How It Works Detailed Scores
(571) 340-0420

Still interested?

Contact the brokers for more information about this property

CONTACTS

  • Listing ID: 3991385

  • Date on Market: 2025-09-03

  • Last Updated:

  • Address: 300 M St SE, Washington, DC 20003

The Capitol Riverfront Office Property at 300 M St SE, Washington, DC 20003 is currently available. Contact Avison Young for more information.

OFFICE PROPERTIES IN NEARBY NEIGHBORHOODS

1 of 4
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
300 M St SE, Washington, DC for lease Primary Photo- Image 1 of 4
300 M St SE
300 M St SE, Washington, DC for lease Building Photo- Image 2 of 4
300 M St SE
300 M St SE, Washington, DC for lease Building Photo- Image 3 of 4
Front Entrance
1 of 1

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© 2026 CoStar Group

The LoopNet service and information provided therein, while believed to be accurate, are provided "as is". LoopNet disclaims any and all representations, warranties, or guarantees of any kind.

300 M Street, SE | 300 M St SE
(571) 340-0420 x

300 M Street, SE | 300 M St SE

Macy Parana
(571) 340-0420

Greg Tomasso
(202) 644-8700

William Stern
(202) 644-8553

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