Updated: Jun 20, 2026
Location and Projects
Address
4475 WALNUT AVENUE, Simi Valley, CA, 93063
Use our bidding system to
request a quote
Duso Construction
Duso Construction at 4475 WALNUT AVENUE, Simi Valley, CA 93063, held a General Contractor license (#969092) with the California contractors license board with an expiration date of 01-31-2030. We last verified the license was suspended on 06-19-2026.
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.
Duso Construction Services
Start a project today:
Duso Construction Contact Information
Phone Number: (805) 558-5160
Edit
Address: 4475 WALNUT AVENUE, Simi Valley, CA 93063
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition 20 x 36 attached garage @ front & convert (e) 22'6 x 27'3 garage to bedroom/bathroom/laundry pantry.convert (e) bedroom to closet.remodel kitchen/bathroom(per engineer's plans)."comply with department order efective date 3/14/2014
Valuation:
$100,000
Permit #:
14014-20000-01138
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Gpi to addition 20 x 36 attached garage & convert (e) 22'6 x 27'3 garage to bedroom/bathroom/laundry room/pantry.convert (e) bedroom to closet.remodel kitchen/bathroom(per engineer's plans."comply with department order efective date 3/14/2014
Valuation:
N/A
Permit #:
14030-20000-01609
Status:
approved
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Change of use from retail to medical office. tenant improvement including new non-bearing partitions finishes t-bar ceiling. no change in parking. entreprise zone
Valuation:
N/A
Permit #:
14041-10000-05822
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Change of use from retail to medical office. tenant improvement including new non-bearing partitions finishes t-bar ceiling. no change in parking. entreprise zone
Valuation:
$20,000
Permit #:
14016-10000-01932
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Relocate package unit. comply with department order effective date 03/14/2014. permit will expire 30 days from issuance date
Valuation:
N/A
Permit #:
14044-20000-10724
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Relocate water heater. comply with department order effective date 03/14/2014. permit will expire 30 days from issuance date
Valuation:
N/A
Permit #:
14042-20000-20636
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Plumbing tenant improvement due to change of use in unit 101- plan check for waste/vent and potable water with existing 1 shared meter
Valuation:
N/A
Permit #:
14042-10000-04000
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental permit to 14016-10000-01932 to reconfigure single occupancy restroom layout
Valuation:
$501
Permit #:
14016-10001-01932
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
To remove a closet in master bedroom. to provide a celing beam for wider span opening
Valuation:
$600
Permit #:
14016-20000-06714
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Revision to approved plans to change locations of fixtures due to field conditions-waste & vent only
Valuation:
N/A
Permit #:
14042-10001-04000
Status:
approved
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Mechanical. refer to permit # 14041-10000-05822 for second trade
Valuation:
N/A
Permit #:
14044-10000-06232
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Addition 14'-2 x 12'-4 laundry room to (e) single family dwelling and interior remodel
Valuation:
N/A
Permit #:
13014-20000-03699
Status:
plancheck
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Add 20' x 36' attached garage @ front & convert (e) 22'6" x 27'3" gara
Valuation:
$100,000
Permit #:
14014-20000-01138
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 Family Dwe...
Building Type:
N/A
Plumbing tenant improvement due to change of use in unit 101- plan che
Valuation:
N/A
Permit #:
14042-10000-04000
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Change of use from retail to medical office. tenant improvement including new non-bearing partitions finishes t-bar ceiling. no change in parking. entreprise zone
Valuation:
N/A
Permit #:
14041-10000-05822
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Interior bathroom remodel/repair (no changes in walls or openings).
Valuation:
$1,500
Permit #:
13016-90000-03041
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 Family Dwe...
Building Type:
N/A
Change of use from retail to medical office. tenant improvement inclu
Valuation:
$20,000
Permit #:
14016-10000-01932
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
14042-20000-20636
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 Family Dwe...
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
14044-20000-10724
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental permit to 14016-10000-01932 to reconfigure single occupan
Valuation:
$501
Permit #:
14016-10001-01932
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Similar Contractors See more
177
BZ Score
$10K
Avg Project
-
Projects
170
BZ Score
$9.9K
Avg Project
-
Projects
191
BZ Score
$27.9K
Avg Project
-
Projects
License # 1156619
Simi Valley, CA
93
BZ Score
-
Avg Project
-
Projects
License # 1156910
Simi Valley, CA
92
BZ Score
-
Avg Project
-
Projects
Duso Construction Reviews
BuildZoom hasn't received any reviews for Duso Construction. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Duso Construction License info
Inactive License
| License # | 969092 |
| Status | Inactive |
| State | California |
| Type | General Building |
| 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 Duso Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Duso Construction, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $12,500 |
Insured
| Workers Comp Provider | National Liability & Fire Insurance Company |
Duso Construction Employees
JD
Justin Stephen Duso
Sole Owner