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C

Location and Projects

Address
PO Box 662, Walnut, CA, 91789
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Chien Construction

Chien Construction, Walnut, Po Box 662, Walnut, CA (Owned by: Chien - Yu Ko, Chien Yu Ko) holds a General Building 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 Chien Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.

Chien Construction Contact Information

Phone: (626) 548-8890
Address: PO Box 662, Walnut, CA 91789

Chien Construction Walnut

Quality

100
87th percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Chien Construction has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.

Activity

1 project
 2025
2 projects
 2024
Our building permit records indicate that Chien Construction has worked on at least 3.0 projects over the past 2 years.

This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.

Pricing

1 project
 < $5k
1 project
 $250k-$500k
Value Not Public: 1.0 project
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.

Building Permits by Chien Construction

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Building
505 Grand View Ave, San Francisco, CA, 94114
2024-07-24
Work consists of renovation of (e) 5 units on level 2 & 3. interior renovation in units with (n) mechanical system new roof assembly repair exterior stucco if needed. no work in unit 203. convert crawl space at level 1 to storage
Valuation:
$495,000
Permit #:
202307061528
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Grading
840 S Indian Hill Blvd, Claremont, CA, 91711
2025-10-07
Not a permit - deposit for consultant review fees
Valuation:
N/A
Permit #:
G00-002-473
Status:
triage
Fee:
$48,000
Permit Type:
N/A
Building Type:
N/A
Grading
2605 S Sepulveda Blvd, Los Angeles, CA, 90064
2024-02-02
Supplemental ref to pcis # 17030-30000-04720 for a grading permit to remove (e) seepage pit and backfill with certified fill
Valuation:
$51
Permit #:
17030-30002-04720
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Bldg-new
2605 S Sepulveda Blvd, Los Angeles, CA, 90064
2018-11-02
New 3 units apartment building (4800 s.f.) with ground level parking garage
Valuation:
$1,041,768
Permit #:
16010-30000-05451
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Building permit
16025 E Gale Ave, City of Industry, CA, 91745
2018-08-21
Tenant improvement. of (e) tenant space for new beauty school. convert (e) storage room into new unisex ada restroom
Valuation:
$15,000
Permit #:
1808070024
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical
16025 E Gale Ave, City of Industry, CA, 91745
2018-09-20
Electrical for one restroom and 5 shample chair
Valuation:
N/A
Permit #:
1809200003
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical
16025 E Gale Ave, City of Industry, CA, 91745
2018-09-20
Mechanical for restroom and 5 shample chair
Valuation:
N/A
Permit #:
1809200001
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Public works
840 S Indian Hill Blvd, Claremont, CA, 91711
2025-10-26
Not a permit - final map fee
Valuation:
N/A
Permit #:
PW0-002-065
Status:
triage
Fee:
$6,650
Permit Type:
N/A
Building Type:
N/A
Residential building alteration-repair
310 Bloom Dr, Monterey Park, CA, 91755
2016-10-26
Kitchen remodel only and new lighting in kitchen. *carbon monoxide alarms/smoke alarms are required for this project per 2013 crc section r314/r315* 3/26/2016: (n) island with oven and relocation of refrigerator
Valuation:
$45,000
Permit #:
B16-0135
Status:
final
Fee:
$2,937
Permit Type:
N/A
Building Type:
N/A
Add/altr
2403 Primrose Av S, Los Angeles, CA, 90068
2014-02-13
Convert existing porch to new living area 352 s.f. and remodel kitchen and addition 2 bathrooms
Valuation:
$60,000
Permit #:
1311070044
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Non-residential building alteration-repair
305 W Garvey Ave, Monterey Park, CA, 91754
2016-11-02
Addition t-bar ceiling with electrical and mechanical change out rooftop hvac related to b13-1184
Valuation:
$6,000
Permit #:
B14-0968
Status:
final
Fee:
$867
Permit Type:
N/A
Building Type:
N/A
Grading
2605 S Sepulveda Blvd, Los Angeles, CA, 90064
2024-02-02
Removal and recompaction for new apartment building
Valuation:
$1,158
Permit #:
17030-30000-04720
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Electrical alteration/addition permit
22 Odyssey, Irvine, CA, 92618
2012-05-02
Dental office tenant improvement tenant: dr beatrice lu
Valuation:
$143,840
Permit #:
00526634-EBP
Status:
final
Fee:
$566
Permit Type:
N/A
Building Type:
N/A
Mechanical alteration/addition permit
22 Odyssey, Irvine, CA, 92618
2012-05-02
Dental office tenant improvement tenant: dr beatrice lu
Valuation:
$143,840
Permit #:
00526635-MBP
Status:
final
Fee:
$293
Permit Type:
N/A
Building Type:
N/A
Plumbing alteration/addition permit
22 Odyssey, Irvine, CA, 92618
2012-05-02
Dental office tenant improvement tenant: dr beatrice lu
Valuation:
$143,840
Permit #:
00526636-PBP
Status:
final
Fee:
$215
Permit Type:
N/A
Building Type:
N/A
Residential wall-fence
5389 Anderson St, Chino, CA, 91710
2016-09-12
New block wall at property lines east side 90 x 6 south side 25 x 6 (not on property line) & west side 107 x 6 & 25 x 3 per city standard
Valuation:
N/A
Permit #:
B16-1516
Status:
final
Fee:
$212
Permit Type:
N/A
Building Type:
N/A
Electrical alteration/addition permit
730 Roosevelt, Irvine, CA, 92620
2012-03-14
Office tenant improvement tenant: fossaa inc
Valuation:
$122,709
Permit #:
00531680-EBP
Status:
final
Fee:
$161
Permit Type:
N/A
Building Type:
N/A
Mechanical alteration/addition permit
730 Roosevelt, Irvine, CA, 92620
2012-03-08
Office tenant improvement tenant: fossaa inc
Valuation:
$122,709
Permit #:
00531681-MBP
Status:
final
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Plumbing alteration/addition permit
730 Roosevelt, Irvine, CA, 92620
2012-03-08
Office tenant improvement tenant: fossaa inc
Valuation:
$122,709
Permit #:
00531682-PBP
Status:
final
Fee:
$382
Permit Type:
N/A
Building Type:
N/A
Residence alt/add/2nd story deck permit
114 Sequoia Tree Ln, Irvine, CA, 92612
2012-09-27
1 story addition gameroom change of contractor 00546885-rbpr
Valuation:
$35,317
Permit #:
00529766-RBPR
Status:
final
Fee:
$471
Permit Type:
N/A
Building Type:
N/A

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