Updated: Apr 27, 2026
Location and Projects
Address
10589 HILLSIDE ROAD, Alta Loma, CA, 91701
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John Diponio Construction Corp
John Diponio Construction Corp at 10589 HILLSIDE ROAD, Alta Loma, CA 91701, held a General Contractor license (#325308) with the California contractors license board with an expiration date of 12-31-1992. We last verified the license was expired on 04-26-2026.
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.
John Diponio Construction Corp Services
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John Diponio Construction Corp Contact Information
Phone Number: (909) 975-9028
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Address: 10589 HILLSIDE ROAD, Alta Loma, CA 91701
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Building Permits by John Diponio Construction Corp
This is a sample of this contractor's permits. Click here to access their complete permit history.
Permit for a 395 lf decorative block wall on the property - line 6 ft high per city standard
Valuation:
N/A
Permit #:
BLD18-004784
Status:
final
Fee:
$382
Permit Type:
S-fam residential
Building Type:
N/A
Permit for 23, 876 sf of precise grading and installation - of a drainage system
Valuation:
N/A
Permit #:
BLD18-002579
Status:
final
Fee:
$2,215
Permit Type:
M-fam residential
Building Type:
N/A
(1) revisions to approved deferred truss calcs - c/r approved truss calcs bpc19-000117 permit bld18-005707 for apartment building
Valuation:
N/A
Permit #:
BPC19-000881
Status:
final
Fee:
$134
Permit Type:
M-fam residential
Building Type:
N/A
(bld18-002579) plan check for 21, 780sf (.5 acres) of - precise grade to include infiltration system installation
Valuation:
N/A
Permit #:
BPC17-001701
Status:
final
Fee:
$725
Permit Type:
M-fam residential
Building Type:
N/A
Tentative parcel map subtpm16728 diponio: a request to subdivide a parcel of 3.04 acres that is partially in the very low (vl) residential district (about 2 acres) and partially in the flood control (fc) district (about 0.84 acre) into three (3) parcels located at the north side of hillside road at alta loma channel - apn: 1074-161-16. (eng-mark)
Valuation:
N/A
Permit #:
SUBTPM16728
Status:
complete
Fee:
$4,102
Permit Type:
N/A
Building Type:
N/A
Sign permit drc2004-01234 - diponio: a notice of filing sign according to city standard related to a proposed parcel map subtpm16728 where one lot of 2.99 acres is divided into 3 lots in the very low residential district at 9772 hillside road; apn: 1074-161-16. smith (eng-mark)
Valuation:
N/A
Permit #:
DRC2004-01234
Status:
issued
Fee:
$570
Permit Type:
N/A
Building Type:
N/A
Preliminary review drc2004-00245 - diponio: a preliminary review of a proposed parcel map where one lot of 2.99 acres is divided into 3 lots in the very low residential district at 9772 hillside road; apn: 1074-161-16. smith (eng-mark)
Valuation:
N/A
Permit #:
DRC2004-00245
Status:
complete
Fee:
$457
Permit Type:
N/A
Building Type:
N/A
Preliminary review drc2004-00245 - diponio: a preliminary review of a proposed parcel map where one lot of 2.99 acres is divided into 3 lots in the very low residential district at 9772 hillside road; apn: 1074-161-16. smith (eng-mark)
Valuation:
N/A
Permit #:
PRJ2004-00166
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Changes to approved set title 24 feeders brks.(((((((((((((((( review and restamp plans previously approved. also adding new ckt for control relay for hood. all other circuits existing per custommer.)))))))
Valuation:
N/A
Permit #:
08041-10001-25348
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Hillside design review drc2003-00288 - john diponio - a request to construct a single family residence in the very low residential district located at 4995 clover place. apn 1074-311-14
Valuation:
N/A
Permit #:
DRC2003-00288
Status:
complete
Fee:
$376
Permit Type:
N/A
Building Type:
N/A
Hillside design review drc2003-00288 - john diponio - a request to construct a single family residence in the very low residential district located at 4995 clover place. apn 1074-311-14
Valuation:
N/A
Permit #:
PRJ2003-00282
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plan check for medium pressure gas for building a. verified letter from gas co - 5 psi 4275 cfh
Valuation:
N/A
Permit #:
08042-20000-24291
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Plan check for medium pressure gas for building b. verified letter from gas co - 5 psi 4275 cfh
Valuation:
N/A
Permit #:
08042-20000-24292
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Plan check for medium pressure gas for building c. verified letter from gas co - 5 psi 4275 cfh
Valuation:
N/A
Permit #:
08042-20000-24294
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Plan check for medium pressure gas for building d. verified letter from gas co - 5 psi 4275 cfh
Valuation:
N/A
Permit #:
08042-20000-24295
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Plan check for medium pressure gas for building e. verified letter from gas co - 5 psi 4275 cfh
Valuation:
N/A
Permit #:
08042-20000-24297
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental permit for sewer connection and to change unit number on original permit from unit d
Valuation:
N/A
Permit #:
06042-20001-05951
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental permit for sewer connection and change unit number from unit b. eng. #117565-62
Valuation:
N/A
Permit #:
06042-20001-05949
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental permit for sewer connection and change unit number from unit c. eng. #117565-62
Valuation:
N/A
Permit #:
06042-20001-05950
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental permit for sewer connection and change unit number from unit a. eng. #117565-62
Valuation:
N/A
Permit #:
06042-20001-05948
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
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John Diponio Construction Corp License info
Inactive License
| License # | 325308 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership, Corporation |
- 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 John Diponio Construction Corp at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 324316 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership, Corporation |
- 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 John Diponio Construction Corp at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 292200 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership, Corporation |
- 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 John Diponio Construction Corp at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are John Diponio Construction Corp, click “This is My Business” to update your information.
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
12
Permits
- Building permit records show that John Diponio Construction Corp has worked on 12 permitted projects.
John Diponio Construction Corp Employees
DC
Diponio John Construction Corp
Entity
JC
J D Construction Company
Entity
JP
John Di Ponio
Sole Owner
JD
John Diponio
Rmo / Ceo / Pres
JP
John Di Ponio
Owner
JD
John Diponio
Rmo / Ceo / Pres
RD
Rita Maria Diponio
Officer