Updated: Apr 02, 2026
Location and Projects
Address
505 W ELBERON AVENUE # 4, San Pedro, CA, 90731
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William N Pierce Backhoe Service Architect
William N Pierce Backhoe Service at 505 W ELBERON AVENUE # 4, San Pedro, CA 90731, held a Architect license (#C19073) with the California contractors license board with an expiration date of 02-28-2025. We last verified the license was inactive on 04-29-2025.
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 N Pierce Backhoe Service Services
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William N Pierce Backhoe Service Contact Information
Phone Number: (619) 993-8641
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Address: 505 W ELBERON AVENUE # 4, San Pedro, CA 90731
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Building Permits by William N Pierce Backhoe Service
This is a sample of this contractor's permits. Click here to access their complete permit history.
Convert part of lower floor into a video and post production studio. provide new full height 1 hour rated sound proof walls for studio. new ceiling tiles in studio section. new vinyl flooring throughout. provide stc 53 rated doors for studio and voice over rooms. modification of sprinkler system as required
Valuation:
N/A
Permit #:
02016-10000-19034
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
[u.s. goverment owned property] new 90 x 106.66 type ii-b one story environmental move down monitoring facility including office and lab. at existing open parking lot. re stripe existing parking lot. refer grading permit [08030-10000-03854]
Valuation:
N/A
Permit #:
08010-10000-01395
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental to permit #04010-10000-05570 to delete the fire sprinkler requirement and to allow maximum 0.1 over-grinding to the bottom flange of the beam at beam-column connection that justified by the engineer of record
Valuation:
N/A
Permit #:
04010-10002-05570
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Misc structures: new pipe supports for hyperion treatment plant and two equiptment platforms for valves & flow meters. platform a: 10 ft x 11 ft x 7 ft high platform b: 14 ft x 21 ft x 4 ft high
Valuation:
N/A
Permit #:
09020-10000-01998
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plancheck only for: two equiptment platforms for valves & flow meters hyperion plant. platform a: 10 ft x 11 ft x 7 ft high platform b: 14 ft x 21 ft x 4 ft high
Valuation:
N/A
Permit #:
09020-10001-01998
Status:
applied
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
New mechanical equipment building unattended with attached unisex toilet for treatment plant; new pipe supports for treatment plant; ***posting only***
Valuation:
N/A
Permit #:
09030-10000-04979
Status:
applied
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
New mechanical equipment building unattended with attached unisex toilet for treatment plant; new pipe supports for treatment plant; ***gpi only***
Valuation:
N/A
Permit #:
09030-10000-04046
Status:
applied
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
T.i. on ground floor of parking structure to add 300 sq. ft. office in parking area with non bearing partitions only. 4 additional parking spaces
Valuation:
N/A
Permit #:
02016-10000-20234
Status:
Permit Finaled
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Wood deck county standard
Valuation:
$30,395
Permit #:
BPT160048
Status:
ISSUED
Fee:
$454
Permit Type:
N/A
Building Type:
N/A
Site preparation. grading for overexcavation and recompacton for new one story building [refer permit # 08010-10000-01395]
Valuation:
N/A
Permit #:
08030-10000-03854
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
One story mechanical equipment building includes unisex toilet for hyperion treatment plant
Valuation:
N/A
Permit #:
09010-10000-01558
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Enclose existing 28 x 35 breezeway to create conference room at the maintenance service and office building
Valuation:
N/A
Permit #:
98014-20000-01982
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement. on ground floor of parking structure to addition 300 sq. ft. office in parking area with non bearing partitions only. 4 additional parking spaces
Valuation:
N/A
Permit #:
02016-10000-20234
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Pipe support rack modifications to addition bracing to control deflection due to operation loads
Valuation:
N/A
Permit #:
04010-10001-05570
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Multipurpose room addition with garage
Valuation:
$118,046
Permit #:
BAR120047
Status:
ISSUED
Fee:
$2,805
Permit Type:
N/A
Building Type:
N/A
Residential panel upgrade 100 to 200 amps
Valuation:
$0
Permit #:
BEL130242
Status:
FINAL
Fee:
$293
Permit Type:
N/A
Building Type:
N/A
T.i.: remove & addition non-structural partition. no (n) clg. grid
Valuation:
N/A
Permit #:
00016-10000-21863
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Installation of a 4-wide modular office building as per site plan
Valuation:
N/A
Permit #:
K200302930
Status:
final
Fee:
$653
Permit Type:
N/A
Building Type:
N/A
Re-roof 15% of roof with presidetial celotex 40 yr. comparable shingle to match existing addition. class b or better
Valuation:
$0
Permit #:
BLD94-1095
Status:
Finaled
Fee:
$65
Permit Type:
N/A
Building Type:
N/A
Plumbing---water heater---building sewer---fax permit
Valuation:
$0
Permit #:
100326
Status:
Completed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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William N Pierce Backhoe Service License info
Inactive License
| License # | C19073 |
| Status | Inactive |
| State | California |
| Type | Architect |
| Business Type | Sole Ownership |
- According to the California Architect License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for William N Pierce Backhoe Service at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 823824 |
| Status | Inactive |
| State | California |
| Type | General Engineering |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for William N Pierce Backhoe Service at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are William N Pierce Backhoe Service, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
9
Permits
- Building permit records show that William N Pierce Backhoe Service has worked on 9 permitted projects.
William N Pierce Backhoe Service Employees
PW
Pierce Max William
Owner
WP
William Norman Pierce
Owner