Updated: Jan 21, 2026
Location and Projects
Address
20739 LYCOMING ST #48, Walnut, CA, 91789
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Chongyang Zhao Construction
Chongyang Zhao at 20739 LYCOMING ST #48, Walnut, CA 91789, held a General Contractor license (#912631) with the California contractors license board with an expiration date of 05-31-2025. We last verified the license was expired on 01-20-2026.
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.
Chongyang Zhao Services
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Chongyang Zhao Contact Information
Phone Number: (626) 380-7679
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Address: 20739 LYCOMING ST #48, Walnut, CA 91789
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Chongyang Zhao Walnut
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Chongyang Zhao, click “This is My Business” to update your information.
Activity
|
5 projects
|
2025 |
|
7 projects
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that Chongyang Zhao has worked on at least
15.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
6 projects
|
Home Additions |
|
3 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Chongyang Zhao mostly works on
home addition
and new construction
projects.
Pricing
|
3 projects
|
< $5k |
|
1 project
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
4 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $54,000. This graph shows the distribution of these job values.
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
This is a sample of this contractor's permits. Click here to access their complete permit history.
E-plan. new detached 800 sf adu per ca govt. code 65852.2(e)(1)(b) and applicable part of lamc 12.22 a.33 (c)-(d) (g)
Valuation:
$90,000
Permit #:
24010-10000-01584
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
**eplan** interior remodel and addtion to (e) signle family dwelling w attached garage new deck at rear of s.f.d (e) breezeway to be enclosed
Valuation:
$250,000
Permit #:
22014-10000-06138
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan: ground floor and 2nd floor addition to (e) 1-story single family dwelling
Valuation:
$470,000
Permit #:
24014-20000-03219
Status:
applied
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan. convert garage with 2nd story addition to two story detached adu per la city ordinance
Valuation:
$70,000
Permit #:
25014-10000-00848
Status:
triage
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan convert (e) lower floor of 2-floor duplex unit into 1, 165sf adu per gcs 65852.2(e)(1)(a) and (e). addition interior floor & non-bearing walls to remove stair access from floor above. adu address is 560 1/2 w bonita street la ca 90731
Valuation:
$100,000
Permit #:
22016-10000-37766
Status:
plancheck
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Convert existing utility room and laundry room with addition within existing two story 8 unit apartment building to new rec. room use
Valuation:
$55,000
Permit #:
24014-10000-02462
Status:
applied
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Single family residence remodel of ca room to living space 170 sf **renew expired permit xr2022-2247 **
Valuation:
N/A
Permit #:
XR2023-1729
Status:
final
Fee:
$156
Permit Type:
N/A
Building Type:
N/A
Eplan. addition and major remodel to an (e) single family dwelling
Valuation:
$150,000
Permit #:
22014-10000-05636
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Eplan. conversion of an (e) detached into an adu per gcs 65852.2(e)(1)(a)
Valuation:
$20,000
Permit #:
22016-10000-36478
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental permit to 21010-10000-06086 to revise wall openning floor framing and building height
Valuation:
$501
Permit #:
21010-10002-06086
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addition to condo unit c - addition new roof over (e) 2nd floor deck and convert to study room
Valuation:
$15,000
Permit #:
22014-20000-01203
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Eplan. supplemental to permit 22014-10000-05636 to change lid planter box to rain tank (500 gal)
Valuation:
$300
Permit #:
22014-10001-05636
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
(n) cmu fence wall at side and rear property lines
Valuation:
$10,000
Permit #:
25020-30000-01266
Status:
triage
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Installation of hip shade canopies. building #1
Valuation:
$21,180
Permit #:
24010-10000-02167
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Single family residence remodel of ca room to living space 170 sf
Valuation:
N/A
Permit #:
PC2022-2092
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 2- story single- family dwelling
Valuation:
N/A
Permit #:
21010-10000-06086
Status:
applied
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
E-plan. convert (e) att.garage to single family dwelling to jadu
Valuation:
$54,000
Permit #:
24014-10000-01692
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Installation of hip shade canopies - building #2
Valuation:
$21,180
Permit #:
24010-10000-02169
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Eplan: relocate main entrance all work per eng
Valuation:
$2,500
Permit #:
23016-10000-39751
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
C of o for smile trans c of o for smile trans
Valuation:
$0
Permit #:
CO-01881
Status:
Applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Chongyang Zhao Reviews
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Recent Buildzoom Projects
Chongyang Zhao License info
Inactive License
| License # | 912631 |
| Status | Inactive |
| State | California |
| Type | Flooring And Floor Covering, 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 Chongyang Zhao 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 Chongyang Zhao, click “This is My Business” to update your information.
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $12,500 |
16
Permits
- Building permit records show that Chongyang Zhao has worked on 16 permitted projects.
Chongyang Zhao Employees
CZ
Chongyang Zhao
Sole Owner
CZ
Chongyang Zhao
Sole Owner