Updated: Feb 04, 2026
Location and Projects
Address
PO BOX 27, Grenada, CA, 96038
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Costner Construction
Costner Construction, Grenada, Po Box 27, Grenada, CA (Employee: Grover Charles Costner) holds a General Building license according to the California license board.
Their BuildZoom score of 92 ranks in the top 32% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Costner Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Costner Construction Services
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Costner Construction Contact Information
Phone Number: (541) 601-2922
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Address: PO BOX 27, Grenada, CA 96038
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Non-residential certificate of occupancy
2016-09-01
C of o for torres martinez traibal tanf c of o for torres martinez traibal tanf
Valuation:
$0
Permit #:
CO-01821
Status:
Ready to Issue
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Non-residential certificate of occupancy
2016-09-01
C of o for torres martinez traibal tanf c of o for torres martinez traibal tanf
Valuation:
$0
Permit #:
CO-01820
Status:
Ready to Issue
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Non-residential certificate of occupancy
2016-09-01
C of o for torres martinez traibal tanf c of o for torres martinez traibal tanf
Valuation:
$0
Permit #:
CO-01819
Status:
Ready to Issue
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Non-residential certificate of occupancy
2016-09-01
C of o for torres martinez traibal tanf c of o for torres martinez traibal tanf
Valuation:
$0
Permit #:
CO-01818
Status:
Ready to Issue
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
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Costner Construction License info
Verified License
| License # | 1109112 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Costner Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Costner Construction Employees
GC
Grover Charles Costner
Sole Owner