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Park Highlights

  • Located in the heart of Costa Mesa's SOCO and The OC Mix district, surrounded by popular dining and retail destinations.
  • Newly renovated office building designed to accommodate a variety of business operations.
  • Equipped with three full kitchens and a parking ratio of 4 spaces per 1,000 square feet.
  • Convenient access to the I-405 Freeway and approximately five miles from John Wayne Airport.
  • Features more than 30 private offices and multiple conference rooms throughout the property.
  • Backup generator supported by a 2,000-gallon diesel fuel tank for extended power continuity.

Park Facts

Total Space Available 36,606 SF
Park Type Office Park
Features
Mezzanine
  • Signalized Intersection, Air Conditioning

All Available Space(1)

Display Rental Rate as

Sunflower Corporate Center
1600 Sunflower Ave - Bldg A
36,606 - 73,212 SF | Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request | View Building Details
Building Type/Class
Office/A
Year Built
1986
Building Size
36,606 SF
Building Height
2 Stories
Typical Floor Size
18,303 SF
Parking
146 Spaces
  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Build-Out
  • Available
  • 1st Floor, 2nd Floor
  • 36,606 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

The 2 spaces in this building must be leased together, for a total size of 36,606 SF (Contiguous Area):

1st Floor - 18,303 SF
2nd Floor - 18,303 SF

The first-floor opportunity features a highly improved layout with numerous private offices, multiple conference rooms, a full kitchen, open collaborative areas, storage space, and direct circulation throughout the floor. The configuration supports professional services, corporate users, administrative operations, and team-based office environments.

  • Fully Built-Out as Standard Office
  • Multiple conference rooms.
  • Flexible office layout.
  • Open collaborative workspace.
  • Multiple meeting areas.
  • Flexible business layout.
  • Executive and team space mix.
  • Numerous private offices.
  • Full kitchen included.
  • Dedicated storage area.
  • Private offices and open workspace.
  • Outdoor patio access.
  • Collaborative work environment.
Space Size Term Rental Rate Space Use Build-Out Available
1st Floor, 2nd Floor 36,606 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
Sunflower Corporate Center
1600 Sunflower Ave - Bldg A
36,606 - 73,212 SF | Upon Request Upon Request Upon Request Upon Request Upon Request Upon Request | View Building Details
Building Type/Class
Office/A
Year Built
1986
Building Size
36,606 SF
Building Height
2 Stories
Typical Floor Size
18,303 SF
Parking
146 Spaces

1600 Sunflower Ave - 1st Floor, 2nd Floor

The 2 spaces in this building must be leased together, for a total size of 36,606 SF (Contiguous Area):

Size
1st Floor - 18,303 SF
2nd Floor - 18,303 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Build-Out
Full Build-Out
Available
Now

1600 Sunflower Ave - 1st Floor, 2nd Floor

The 2 spaces in this building must be leased together, for a total size of 36,606 SF (Contiguous Area):
Size
1st Floor - 18,303 SF
2nd Floor - 18,303 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Build-Out Full Build-Out
Available Now

The first-floor opportunity features a highly improved layout with numerous private offices, multiple conference rooms, a full kitchen, open collaborative areas, storage space, and direct circulation throughout the floor. The configuration supports professional services, corporate users, administrative operations, and team-based office environments.

  • Fully Built-Out as Standard Office
  • Numerous private offices.
  • Multiple conference rooms.
  • Full kitchen included.
  • Flexible office layout.
  • Dedicated storage area.
  • Open collaborative workspace.
  • Private offices and open workspace.
  • Multiple meeting areas.
  • Outdoor patio access.
  • Flexible business layout.
  • Collaborative work environment.
  • Executive and team space mix.

Select Tenants at This Property

  • Floor
  • Tenant Name
  • Industry
  • 2nd
  • Columbia Bank
  • Finance and Insurance
  • 2nd
  • Meridianlink
  • Information

Park Overview

1600 Sunflower Avenue is located within the SOCO and The OC Mix district of Costa Mesa, one of Orange County's established mixed-use business environments. The property benefits from immediate access to the I-405 Freeway, proximity to John Wayne Airport, and walkable access to dining, retail, and service amenities including Arc Food & Libations, Greenleaf Kitchen, Moulin, and other nearby establishments. The campus setting offers convenient access for employees, clients, and visitors throughout Orange County.

  • Mezzanine
  • Signalized Intersection
  • Air Conditioning
Fairly walkable
50/100
Exceptionally drivable
100/100
Limited public transit
20/100
Very bikeable
80/100
  • Listing ID: 41422693

  • Date on Market: 7/6/2026

  • Last Updated:

  • Address: 1600 Sunflower Ave, Costa Mesa, CA 92626

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