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Location and Projects

Address
3333 WILLOWPASS ROAD, Bay Point, CA, 94565
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William Costanzo Construction

William Costanzo Inc at 3333 WILLOWPASS ROAD, Bay Point, CA 94565, held a General Contractor license (#466887) with the California contractors license board with an expiration date of 12-31-1996. We last verified the license was expired on 12-12-2025.

Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.

If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.

William Costanzo Inc Contact Information

Phone: (510) 458-2588 Edit
Address: 3333 WILLOWPASS ROAD, Bay Point, CA 94565 Edit

Building Permits by William Costanzo Inc

Sort by: Notable Notable | Date Date | Job Value Job Value
Demolish existing car wash and remove old underground fuel storage tank
Valuation:
N/A
Permit #:
BLD91-0724
Status:
final
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
Building/residential/ad/single family addition
1991-08-06
1st & 2nd story addition
Valuation:
$19,800
Permit #:
BIAD0000172639
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building/commercial/t/tenant improvement
1993-02-17
Kitchen remodel
Valuation:
N/A
Permit #:
BIT0000183773
Status:
final
Fee:
$845
Permit Type:
N/A
Building Type:
N/A
Building/residential/rs/restoration of service
1991-05-28
Restore service gas & electric
Valuation:
$0
Permit #:
BIRS0000170910
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building/commercial/pz/plumbing
1991-07-02
Change out water heater
Valuation:
$0
Permit #:
BIPZ0000171709
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building/residential/al/alteration
1994-05-11
Serv upgrd wndws etc
Valuation:
N/A
Permit #:
BIAL0000193215
Status:
expired
Fee:
$217
Permit Type:
N/A
Building Type:
N/A
Building/residential/al/alteration
1994-05-11
Wndws w.h serv upgrd
Valuation:
N/A
Permit #:
BIAL0000193216
Status:
expired
Fee:
$207
Permit Type:
N/A
Building Type:
N/A
Building/residential/al/alteration
1994-05-11
Wndws serv upgrd etc
Valuation:
N/A
Permit #:
BIAL0000193214
Status:
expired
Fee:
$192
Permit Type:
N/A
Building Type:
N/A
Building/residential/al/alteration
1994-05-11
Wndws electrical w.h
Valuation:
N/A
Permit #:
BIAL0000193217
Status:
expired
Fee:
$147
Permit Type:
N/A
Building Type:
N/A
Building/commercial/ec/electrical
1991-07-03
Misc electrical
Valuation:
$0
Permit #:
BIEC0000171741
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A

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