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3515 Harbor Blvd
Costa Mesa, CA 92626 Costa Mesa

$2.05 USD/SF/MO - $24.60 USD/SF/YR

Unknown For Lease  •  3,000+ SF

Property Details

  • Property Type Unknown
  • Year Built 1989
42 Transit Score
52 Walk Score

4 Spaces Available

Name Space Use Size Rent Details
1st Floor Ste 100 Flex 41,500 SF $22.68 USD/SF/YR
Corner of Harbor and Sunflower
Fully renovated building
Perfect for light assembly or office
On-site café/special events ctr., plus
Conference ctr.
Bldg. + monument signage
Immediate 405 Freeway access

  • Date available: Apr 2025
  • Lease term: Negotiable
  • Service type: Triple Net
  • Space Type: Relet
2nd Floor Ste 200 Office 19,838 SF $22.68 USD/SF/YR
Fully renovated space and building

  • Date available: Mar 2025
  • Lease term: Negotiable
  • Service type: Triple Net
  • Space Type: Relet
2nd Floor Ste 210 Office 3,000-8,565 SF $2.05 USD/SF/MO
4:1 parking , improvements to suit, full building renovation

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Triple Net
  • Built out as: Standard Office
  • Space Type: Relet
2nd Floor Ste 230 Office 3,651 SF $24.60 USD/SF/YR
4:1 parking , improvements to suit, full building renovation

  • Date available: Now
  • Lease term: Negotiable
  • Service type: Triple Net
  • Built out as: Standard Office
  • Space Type: Relet

Description

Harbor Gateway Business Center is a 75-acre master-planned business park that combines building types totaling approximately 843,000 square feet. Flexibility, expandability, efficiency and architectural excellence are the keys to Harbor Gateway’s ability to attract multi-use space requirements ranging from multi-tenant to corporate headquarters. For expansion-minded companies, Harbor Gateway offers an existing network of underground conduits, which provides secure telecommunications and data networking connections easily and seamlessly. Extensive use of landscaped areas, including benches, pedestrian pathways, green belts, and rose gardens, complement the innovative architectural theme of the park and create a pleasant working environment. 


Harbor Gateway Business Center offers a prestigious business setting with an on-site café and tenant catering services. A special events center is conveniently located on the grounds to accommodate company events of any size. The site is situated less than five miles from John Wayne Airport and offers immediate access to the 405, 55, and 73 freeways and the San Joaquin Hills Transportation Corridor. The site is minutes from the Orange Country Theater District, overflowing with art galleries, museums, and performing arts theaters. The area is home to the Segerstrom Center for the Arts, Orange County Museum of Art, and public art is peppered across the urban-suburban landscape.


Along with a thriving arts community, tenants enjoy abundant dining and shopping options. The neighborhood has everything from authentic taquerias to classic SoCal fast food joints. South Coast Plaza is two miles from the business center and offers big-box department stores, chic boutiques, and designer shops.

Highlights

Lease space in the 75-acre, master-planned campus, at a highly visible corner location with monument and building signage opportunities.
Many of the spaces have been returned to a "shell" condition, allowing for tenants to customize their interior spaces based on business need.
The buildings can be combined for over 120,000 square feet of space, and the ground-level loading door can be converted to glass storefront.
Tenants have access to an on-site cafe and events center in a heavily landscaped environment complete with benches, pathways, and gardens.
Exterior patio and EV charging stations can be designed with the interior improvements for a "custom-fit" solution based on a tenant's exact needs.
Immediate access to the 405, 55, and 73 freeways and a number of shopping and dining options within a three-mile radius.

Property Flyers

Major Tenants

Tenant SF Occupied Lease End Date
Affinity Medical Technologies
Optum Rx
Paychex
Southern California Coastal Water Research Project
Ultra Mobile

Public Transportation

Commuter RailDriveWalkDistance
Santa Ana (Inland Empire-Orange County Line - Southern California Regional Rail Authority (Metrolink), Orange County Line - Southern California Regional Rail Authority (Metrolink)) 14 min - 7.4 mi
Tustin (Inland Empire-Orange County Line - Southern California Regional Rail Authority (Metrolink), Orange County Line - Southern California Regional Rail Authority (Metrolink)) 13 min - 8.8 mi
AirportDriveWalkDistance
John Wayne/Orange County 7 min - 4.0 mi
Long Beach (Daugherty Field) 23 min - 18.8 mi
Jeff Reese 657-220-6928 CJ Segerstrom & Sons
Jeff Reese 657-220-6928 CJ Segerstrom & Sons