Updated: Dec 10, 2025
Location and Projects
Address
1411 RIDERWOOD AVE, Hacienda Heights, CA, 91745
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John Chonghyun Woo Construction
John Chonghyun Woo, 1411 Riderwood Ave, Hacienda Heights, CA holds a license and 1 other license according to the California license board.
Their BuildZoom score of 100 ranks in the top 13% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring John Chonghyun Woo, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
John Chonghyun Woo Services
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John Chonghyun Woo Contact Information
Phone Number: (626) 224-2813
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Address: 1411 RIDERWOOD AVE, Hacienda Heights, CA 91745
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John Chonghyun Woo Hacienda Heights
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
John Chonghyun Woo has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
3 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that John Chonghyun Woo has worked on at least
5.0 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
|
3 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that John Chonghyun Woo mostly works on
new construction
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$500k-$1mil |
|
2 projects
|
$1mil+ |
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.
Proposed 19-unit apartment 5-story and basement and 1st floor parking. this is a toc tier 3. basement and 1st floor area type 1a and 4 levels of type iiia construction with rooftop deck guardrails are deferred
Valuation:
$2,617,041
Permit #:
17010-10000-03028
Status:
withdrawn
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
New 2-story (4)-unit apartment with private basement parking garage
Valuation:
$780,000
Permit #:
19010-10000-01038
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Supplemental to permit #19010-20000-01539 to revise floor plan to show office instead of bedroom. no structural changes to be made
Valuation:
$501
Permit #:
19010-20001-01539
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Proposed 660 s.f. of bedroom and 327 s.f. of garage addition
Valuation:
N/A
Permit #:
GRA-2024-0040
Status:
filed
Fee:
$698
Permit Type:
N/A
Building Type:
N/A
**site grading (3480cy)** for: (n) 29 unit apartment building with roof deck: 3 story type v-a structure over type i-a ground and basement parking garage
Valuation:
N/A
Permit #:
17030-10000-04689
Status:
applied
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
**site retaining walls** for: (n) 29 unit apartment building with roof deck: 3 story type v-a structure over type i-a ground and basement parking garage
Valuation:
N/A
Permit #:
17020-10000-01976
Status:
applied
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Attn: vu nguyen supplemental to 19010-10000-01038 resubmittal for redesign (architectural and strutural) for a 3 story 4 units apartment and 33% hillside
Valuation:
N/A
Permit #:
19010-10001-01038
Status:
triage
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
New construction of (4)-unit apartments with parking garage. 972 cu.yrd
Valuation:
$982
Permit #:
19030-10000-01565
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
New 17 unit 5 story apartment toc project: dir 2018-1421-toc-spp
Valuation:
$3,800,000
Permit #:
19010-10000-03235
Status:
canceled
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
A new 23- unit mixed use apartment 100 % privately funded. planning case #dir-2019-2431-spp-toc 1 of 3
Valuation:
N/A
Permit #:
19010-10000-04334
Status:
applied
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Shoring for a new 23- unit mixed use apartment planning case #dir-2019-2431-spp-toc 3 of 3
Valuation:
N/A
Permit #:
19020-10000-02667
Status:
applied
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Site grading for new apartment under #17010-10000-02258 (cut 50cy fill 310cy import 260cy r&r 803 cy)
Valuation:
$803
Permit #:
17030-10000-07209
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Retaining/block wall at property line per eng design
Valuation:
$20,664
Permit #:
18020-10000-00297
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
New retaining wall
Valuation:
$5,000
Permit #:
19020-10000-00679
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
New 48 x 27 irregular-shaped 2-story single family dwelling with attached 23 x 27 irregular-shaped 2-story accessory dwelling unit and attached 28 x 30 6 basement garage undernearth single family dwelling. all work done per structural engineering
Valuation:
$400,000
Permit #:
19010-10000-01539
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental to permit # 11014-30000-01056 to revise great room uppermost floor level to setback the north front facing wall by 4'-1 to comply with coastal commission's approved plans dated 10/25/2013 and to revise the structural inventory
Valuation:
$10,000
Permit #:
11014-30004-01056
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Site preparation for new single family dwelling with attached accessory dwelling unit & basement garage and backfill retaining wall
Valuation:
$997
Permit #:
19030-10000-02323
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New fence/sound wall along rear property line facing topanga canyon blvd. max. wall height is 6ft. above finished approved grade (see permitted grading plans). new fence wall will be constructed above caltrans ret. wall where height varies up to 10ft
Valuation:
N/A
Permit #:
06020-30000-04785
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New fence/sound wall along rear property line facing topanga canyon blvd. max. wall height is 6ft. above finished approved grade (see permitted grading plans). new fence wall will be constructed above caltrans ret. wall where height varies up to 10ft
Valuation:
N/A
Permit #:
06020-30000-04790
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
New fence/sound wall along rear property line facing topanga canyon blvd. max. wall height is 6ft. above finished approved grade (see permitted grading plans). new fence wall will be constructed above caltrans ret. wall where height varies up to 10ft
Valuation:
N/A
Permit #:
06020-30000-04778
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
John Chonghyun Woo License info
Verified License
| License # | CAC45021 |
| Status | Active |
| State | California |
| Business Type | Sole Ownership |
- BuildZoom has not verified this license since June, 2015.
Verify this license's status for John Chonghyun Woo at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 908876 |
| 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 John Chonghyun Woo at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $12,500 |
62
Permits
- Building permit records show that John Chonghyun Woo has worked on 62 permitted projects.
John Chonghyun Woo Employees
JW
John Chonghyun Woo
Sole Owner