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21671 Gateway Center Dr 871 - 2,010 SF of Office Space Available in Diamond Bar, CA 91765

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HIGHLIGHTS

  • property has been fully occupied for the last five years
  • centrally located close to the 57 and 60 fwys making getting around an easy task

ALL AVAILABLE SPACES(2)

Display Rental Rate as

  • SPACE
  • SIZE
  • TERM
  • RENTAL RATE
  • SPACE USE
  • CONDITION
  • AVAILABLE
  • 1st Floor, Ste 101
  • 871 SF
  • 2-5 Years
  • $31.80 /SF/YR $2.65 /SF/MO $27,698 /YR $2,308 /MO
  • Office
  • Full Build-Out
  • Now

Located in the vibrant Gateway Center business district of Diamond Bar, this premier office space at 21671 Gateway Center Drive, Suite #101, offers a modern and efficient setting for businesses aiming to thrive in a strategic location. Spanning approximately 1,200 square feet, this versatile unit features an open-plan workspace, private offices, and a professional reception area, enhanced by large windows that provide ample natural light and views of the well-maintained corporate park. Situated in the prestigious Walnut Valley area of Diamond Bar—known for its safe community, top-tier schools, and excellent connectivity via I-60, I-57, and CA-57—this property is just minutes from key landmarks like the Pomona Fairplex, Cal Poly Pomona University, and The Shops at Diamond Bar for shopping and dining. Its prime location, approximately 30 miles east of Los Angeles and 15 miles west of Ontario International Airport, makes it ideal for businesses requiring easy access for commuting or logistics. The suite is equipped with high-speed fiber internet compatibility, generous on-site parking, 24/7 secured access, and access to shared conference facilities within the Gateway Center complex. Perfect for tech startups, professional services, or medical offices, Suite #101 offers a blend of functionality and prestige at a competitive lease rate of $2.65 per square foot (full service). Available now for lease, this space is a prime opportunity to establish or expand your business in one of Southern California’s most sought-after suburban markets.

  • Listed rate may not include certain utilities, building services and property expenses
  • Fits 2 - 5 People
  • 1 Conference Room
  • Finished Ceilings: 8’
  • Central Air and Heating
  • After Hours HVAC Available
  • Fully Built-Out as Professional Services Office
  • 3 Private Offices
  • 5 Workstations
  • Space is in Excellent Condition
  • Closed Circuit Television Monitoring (CCTV)
  • Hardwood Floors
  • 2nd Floor, Ste 204
  • 1,139 SF
  • 2-5 Years
  • $31.80 /SF/YR $2.65 /SF/MO $36,220 /YR $3,018 /MO
  • Office
  • Full Build-Out
  • Now

Discover an exceptional office space in the prestigious Gateway Center, managed by Bi City Rental Group Inc. Unit 204 offers 1,139 sq. ft. of modern, versatile office space, perfect for professional services or small businesses. Recently painted with fresh, contemporary finishes, this suite features five individual rooms, ideal for private offices or meeting spaces. Enjoy stunning highway views of the mountains, a highly sought-after feature that makes this unit one of the most desirable in the building. Ample natural light floods the space, enhancing its welcoming atmosphere. The unit includes central HVAC for year-round comfort and access to an expansive parking lot with abundant spaces for tenants and clients. Strategically located with excellent visibility and proximity to I-57 and I-60, Unit 204 ensures easy access and high traffic exposure. Lease this prime office space for $2.55 per sq. ft. Contact Bi City Rental Group Inc. at 949-887-8103 to schedule a viewing and secure this coveted suite today!

  • Listed rate may not include certain utilities, building services and property expenses
  • Fits 3 - 7 People
  • 5 Workstations
  • Space is in Excellent Condition
  • Hardwood Floors
  • Full time AC control
  • Ample Parking
  • Fully Built-Out as Professional Services Office
  • 5 Private Offices
  • Finished Ceilings: 8’
  • Central Air and Heating
  • Security
  • private offices
Space Size Term Rental Rate Space Use Condition Available
1st Floor, Ste 101 871 SF 2-5 Years $31.80 /SF/YR $2.65 /SF/MO $27,698 /YR $2,308 /MO Office Full Build-Out Now
2nd Floor, Ste 204 1,139 SF 2-5 Years $31.80 /SF/YR $2.65 /SF/MO $36,220 /YR $3,018 /MO Office Full Build-Out Now

1st Floor, Ste 101

Size
871 SF
Term
2-5 Years
Rental Rate
$31.80 /SF/YR $2.65 /SF/MO $27,698 /YR $2,308 /MO
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 204

Size
1,139 SF
Term
2-5 Years
Rental Rate
$31.80 /SF/YR $2.65 /SF/MO $36,220 /YR $3,018 /MO
Space Use
Office
Condition
Full Build-Out
Available
Now

1st Floor, Ste 101

Size 871 SF
Term 2-5 Years
Rental Rate $31.80 /SF/YR
Space Use Office
Condition Full Build-Out
Available Now

Located in the vibrant Gateway Center business district of Diamond Bar, this premier office space at 21671 Gateway Center Drive, Suite #101, offers a modern and efficient setting for businesses aiming to thrive in a strategic location. Spanning approximately 1,200 square feet, this versatile unit features an open-plan workspace, private offices, and a professional reception area, enhanced by large windows that provide ample natural light and views of the well-maintained corporate park. Situated in the prestigious Walnut Valley area of Diamond Bar—known for its safe community, top-tier schools, and excellent connectivity via I-60, I-57, and CA-57—this property is just minutes from key landmarks like the Pomona Fairplex, Cal Poly Pomona University, and The Shops at Diamond Bar for shopping and dining. Its prime location, approximately 30 miles east of Los Angeles and 15 miles west of Ontario International Airport, makes it ideal for businesses requiring easy access for commuting or logistics. The suite is equipped with high-speed fiber internet compatibility, generous on-site parking, 24/7 secured access, and access to shared conference facilities within the Gateway Center complex. Perfect for tech startups, professional services, or medical offices, Suite #101 offers a blend of functionality and prestige at a competitive lease rate of $2.65 per square foot (full service). Available now for lease, this space is a prime opportunity to establish or expand your business in one of Southern California’s most sought-after suburban markets.

  • Listed rate may not include certain utilities, building services and property expenses
  • Fully Built-Out as Professional Services Office
  • Fits 2 - 5 People
  • 3 Private Offices
  • 1 Conference Room
  • 5 Workstations
  • Finished Ceilings: 8’
  • Space is in Excellent Condition
  • Central Air and Heating
  • Closed Circuit Television Monitoring (CCTV)
  • After Hours HVAC Available
  • Hardwood Floors

2nd Floor, Ste 204

Size 1,139 SF
Term 2-5 Years
Rental Rate $31.80 /SF/YR
Space Use Office
Condition Full Build-Out
Available Now

Discover an exceptional office space in the prestigious Gateway Center, managed by Bi City Rental Group Inc. Unit 204 offers 1,139 sq. ft. of modern, versatile office space, perfect for professional services or small businesses. Recently painted with fresh, contemporary finishes, this suite features five individual rooms, ideal for private offices or meeting spaces. Enjoy stunning highway views of the mountains, a highly sought-after feature that makes this unit one of the most desirable in the building. Ample natural light floods the space, enhancing its welcoming atmosphere. The unit includes central HVAC for year-round comfort and access to an expansive parking lot with abundant spaces for tenants and clients. Strategically located with excellent visibility and proximity to I-57 and I-60, Unit 204 ensures easy access and high traffic exposure. Lease this prime office space for $2.55 per sq. ft. Contact Bi City Rental Group Inc. at 949-887-8103 to schedule a viewing and secure this coveted suite today!

  • Listed rate may not include certain utilities, building services and property expenses
  • Fully Built-Out as Professional Services Office
  • Fits 3 - 7 People
  • 5 Private Offices
  • 5 Workstations
  • Finished Ceilings: 8’
  • Space is in Excellent Condition
  • Central Air and Heating
  • Hardwood Floors
  • Security
  • Full time AC control
  • private offices
  • Ample Parking

PROPERTY OVERVIEW

This office building is a perfect space for a small business or organization. There is bountiful parking, friendly neighbors, closeby bathroom, lobby space, and outside seating. The location is convenient and central. It is close to Ontario International Airport, hotels, restaurants, business services, and retail. This property with easy access to 57 and 67 freeway features fully decorated units. A high image building with freeway exposure, this property is suitable for users looking for a long term lease. If you are already considering this property, then you would be happier to know that 21671 Gateway Center Drive also features 24-hour access with the property manager on site. The 26,001 SF building built in 2008 boasts a nice interior and cozy air conditioning.

  • 24 Hour Access
  • Bus Line
  • Controlled Access
  • Property Manager on Site
  • Air Conditioning

PROPERTY FACTS

Building Type
Office
Year Built
2008
Building Height
2 Stories
Building Size
26,001 SF
Building Class
B
Typical Floor Size
13,000 SF
Unfinished Ceiling Height
11’
Parking
80 Surface Parking Spaces
  • Listing ID: 15411462

  • Date on Market: 9/16/2025

  • Last Updated:

  • Address: 21671 Gateway Center Dr, Diamond Bar, CA 91765

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