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Marine Building 305 21st St 257 - 3,731 SF of Office Space Available in Galveston, TX 77550

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HIGHLIGHTS

  • Historical
  • Hard-wood floors
  • High Ceilings
  • Executive Suites

ALL AVAILABLE SPACES(7)

Display Rental Rate as

  • SPACE
  • SIZE
  • TERM
  • RENTAL RATE
  • SPACE USE
  • CONDITION
  • AVAILABLE
  • 1st Floor, Ste 160
  • 1,466 SF
  • 3-5 Years
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

This office has carpet, but the carpet can be removed to expose beautiful slate floors. The window have wooden shutters and feature a unique shape. Even though this space is on the first floor, it sits four feet above street level.

  • Rate includes utilities, building services and property expenses
  • Fits 5 - 8 People
  • 1 Conference Room
  • Central Air and Heating
  • Fully Carpeted
  • Accent Lighting
  • Fully Built-Out as Standard Office
  • 3 Private Offices
  • Space is in Excellent Condition
  • Kitchen
  • Natural Light
  • Wheelchair Accessible
  • 2nd Floor, Ste 221
  • 398 SF
  • 1-3 Years
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now
  • Rate includes utilities, building services and property expenses
  • Fits 1 - 4 People
  • 3 Conference Rooms
  • Space is in Excellent Condition
  • High Ceilings
  • After Hours HVAC Available
  • Accent Lighting
  • Professional Lease
  • Fully Built-Out as Standard Office
  • 1 Private Office
  • 1 Workstation
  • Central Air and Heating
  • Natural Light
  • Emergency Lighting
  • Hardwood Floors
  • Wheelchair Accessible
  • 2nd Floor, Ste 225
  • 312 SF
  • 1-3 Years
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

Single room, executive suite with access to furnished waiting area, three conference rooms, and kitchen facility.

  • Rate includes utilities, building services and property expenses
  • Fits 1 - 2 People
  • 3 Conference Rooms
  • Central Air and Heating
  • High Ceilings
  • Emergency Lighting
  • Fully Built-Out as Standard Office
  • 1 Private Office
  • Space is in Excellent Condition
  • Kitchen
  • After Hours HVAC Available
  • Hardwood Floors
  • 2nd Floor, Ste 226
  • 304 SF
  • 1-3 Years
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now
  • Rate includes utilities, building services and property expenses
  • Fits 1 - 2 People
  • 3 Conference Rooms
  • Space is in Excellent Condition
  • Kitchen
  • Secure Storage
  • Accent Lighting
  • Wheelchair Accessible
  • Fully Built-Out as Standard Office
  • 1 Private Office
  • 1 Workstation
  • Central Air and Heating
  • High Ceilings
  • Emergency Lighting
  • Hardwood Floors
  • 2nd Floor, Ste 227
  • 733 SF
  • 1-5 Years
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

This office features two separate rooms. It has beautiful hard-wood floors along with towering ceilings and windows.

  • Rate includes utilities, building services and property expenses
  • Fits 2 - 6 People
  • 3 Conference Rooms
  • Central Air and Heating
  • High Ceilings
  • Accent Lighting
  • Fully Built-Out as Standard Office
  • 2 Private Offices
  • Space is in Excellent Condition
  • Kitchen
  • Natural Light
  • Hardwood Floors
  • 2nd Floor, Ste 251
  • 257 SF
  • 1-3 Years
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

Executive Suite with towering windows, hard-wood floors, shared conference rooms, kitchen and furnished waiting areas.

  • Rate includes utilities, building services and property expenses
  • Fits 1 Person
  • 3 Conference Rooms
  • Space is in Excellent Condition
  • Central Air and Heating
  • Recessed Lighting
  • After Hours HVAC Available
  • Accent Lighting
  • Professional Lease
  • Wheelchair Accessible
  • Fully Built-Out as Standard Office
  • 1 Private Office
  • 1 Workstation
  • Plug & Play
  • High Ceilings
  • Natural Light
  • Emergency Lighting
  • Hardwood Floors
  • Smoke Detector
  • 2nd Floor, Ste 254
  • 261 SF
  • 1-3 Years
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

Executive Suite with towering windows, hard-wood floors, shared conference rooms, kitchen and furnished waiting areas.

  • Rate includes utilities, building services and property expenses
  • Fits 1 Person
  • 3 Conference Rooms
  • Space is in Excellent Condition
  • Central Air and Heating
  • Natural Light
  • Emergency Lighting
  • Hardwood Floors
  • Smoke Detector
  • Fully Built-Out as Standard Office
  • 1 Private Office
  • 1 Workstation
  • Plug & Play
  • High Ceilings
  • After Hours HVAC Available
  • Accent Lighting
  • Professional Lease
  • Wheelchair Accessible
Space Size Term Rental Rate Space Use Condition Available
1st Floor, Ste 160 1,466 SF 3-5 Years Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
2nd Floor, Ste 221 398 SF 1-3 Years Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
2nd Floor, Ste 225 312 SF 1-3 Years Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
2nd Floor, Ste 226 304 SF 1-3 Years Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
2nd Floor, Ste 227 733 SF 1-5 Years Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
2nd Floor, Ste 251 257 SF 1-3 Years Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
2nd Floor, Ste 254 261 SF 1-3 Years Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now

1st Floor, Ste 160

Size
1,466 SF
Term
3-5 Years
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 221

Size
398 SF
Term
1-3 Years
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 225

Size
312 SF
Term
1-3 Years
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 226

Size
304 SF
Term
1-3 Years
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 227

Size
733 SF
Term
1-5 Years
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 251

Size
257 SF
Term
1-3 Years
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 254

Size
261 SF
Term
1-3 Years
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

1st Floor, Ste 160

Size 1,466 SF
Term 3-5 Years
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

This office has carpet, but the carpet can be removed to expose beautiful slate floors. The window have wooden shutters and feature a unique shape. Even though this space is on the first floor, it sits four feet above street level.

  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Fits 5 - 8 People
  • 3 Private Offices
  • 1 Conference Room
  • Space is in Excellent Condition
  • Central Air and Heating
  • Kitchen
  • Fully Carpeted
  • Natural Light
  • Accent Lighting
  • Wheelchair Accessible

2nd Floor, Ste 221

Size 398 SF
Term 1-3 Years
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Fits 1 - 4 People
  • 1 Private Office
  • 3 Conference Rooms
  • 1 Workstation
  • Space is in Excellent Condition
  • Central Air and Heating
  • High Ceilings
  • Natural Light
  • After Hours HVAC Available
  • Emergency Lighting
  • Accent Lighting
  • Hardwood Floors
  • Professional Lease
  • Wheelchair Accessible

2nd Floor, Ste 225

Size 312 SF
Term 1-3 Years
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

Single room, executive suite with access to furnished waiting area, three conference rooms, and kitchen facility.

  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Fits 1 - 2 People
  • 1 Private Office
  • 3 Conference Rooms
  • Space is in Excellent Condition
  • Central Air and Heating
  • Kitchen
  • High Ceilings
  • After Hours HVAC Available
  • Emergency Lighting
  • Hardwood Floors

2nd Floor, Ste 226

Size 304 SF
Term 1-3 Years
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Fits 1 - 2 People
  • 1 Private Office
  • 3 Conference Rooms
  • 1 Workstation
  • Space is in Excellent Condition
  • Central Air and Heating
  • Kitchen
  • High Ceilings
  • Secure Storage
  • Emergency Lighting
  • Accent Lighting
  • Hardwood Floors
  • Wheelchair Accessible

2nd Floor, Ste 227

Size 733 SF
Term 1-5 Years
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

This office features two separate rooms. It has beautiful hard-wood floors along with towering ceilings and windows.

  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Fits 2 - 6 People
  • 2 Private Offices
  • 3 Conference Rooms
  • Space is in Excellent Condition
  • Central Air and Heating
  • Kitchen
  • High Ceilings
  • Natural Light
  • Accent Lighting
  • Hardwood Floors

2nd Floor, Ste 251

Size 257 SF
Term 1-3 Years
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

Executive Suite with towering windows, hard-wood floors, shared conference rooms, kitchen and furnished waiting areas.

  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Fits 1 Person
  • 1 Private Office
  • 3 Conference Rooms
  • 1 Workstation
  • Space is in Excellent Condition
  • Plug & Play
  • Central Air and Heating
  • High Ceilings
  • Recessed Lighting
  • Natural Light
  • After Hours HVAC Available
  • Emergency Lighting
  • Accent Lighting
  • Hardwood Floors
  • Professional Lease
  • Smoke Detector
  • Wheelchair Accessible

2nd Floor, Ste 254

Size 261 SF
Term 1-3 Years
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

Executive Suite with towering windows, hard-wood floors, shared conference rooms, kitchen and furnished waiting areas.

  • Rate includes utilities, building services and property expenses
  • Fully Built-Out as Standard Office
  • Fits 1 Person
  • 1 Private Office
  • 3 Conference Rooms
  • 1 Workstation
  • Space is in Excellent Condition
  • Plug & Play
  • Central Air and Heating
  • High Ceilings
  • Natural Light
  • After Hours HVAC Available
  • Emergency Lighting
  • Accent Lighting
  • Hardwood Floors
  • Professional Lease
  • Smoke Detector
  • Wheelchair Accessible

PROPERTY OVERVIEW

The Marine building was built in 1875. In 2015, the roof, HVAC Units, HVAC duct work, ceilings and lighting were replaced. The building features slate floors on the first floor and hardwood floors throughout the second floor. The building contains large office suites on the first floor along with three executive suites that share a conference room and coffee bar. The second floor contains 21 executive suites with a common reception area, waiting areas, along with access to three shared conference rooms and a shared kitchen. Utilities, night cleaning and trash removal are included. This building is located on the corner of 21st and Mechanic Streets in the historic downtown district. A parking garage and surface lot are adjacent to the building.

  • 24 Hour Access
  • Controlled Access
  • Courtyard
  • Signage
  • Air Conditioning
  • Fiber Optic Internet

PROPERTY FACTS

Building Type
Office
Year Built/Renovated
1875/2015
Building Height
2 Stories
Building Size
16,382 SF
Building Class
B
Typical Floor Size
8,191 SF
Parking
525 Covered Parking Spaces at $80/month

SELECT TENANTS

  • FLOOR
  • TENANT NAME
  • INDUSTRY
  • 1st
  • Burns Architectural Firm
  • Professional, Scientific, and Technical Services
  • 1st
  • CURevl
  • Finance and Insurance
  • 1st
  • Edward Jones
  • Finance and Insurance
  • 1st
  • MLSBC Cruises
  • Transportation and Warehousing
  • 2nd
  • Texas Senator Mayes Middleton
  • Public Administration
Walk Score®
Very Walkable (81)
Bike Score®
Very Bikeable (74)
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.®
  • Listing ID: 4217814

  • Date on Market: 7/23/2025

  • Last Updated:

  • Address: 305 21st St, Galveston, TX 77550

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