License is active
Source: Contractors State License Board (CSLB)
Licensed
Current and in good standing
Bonded
$25,000 surety bond
WC exempt
No employees — exempt from requirement
Clean record
No complaints or disciplinary actions
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W N C CONSTRUCTION INC
Owner: WNC CONSTRUCTION INC
- License Number
- 1024196
- State
- California
- Status
- active
- Business Type
- Corporation
- Address
- 3524 LAWTON STREET SAN FRANCISCO, CA, 94122 San Francisco County
- Phone
- (415) 819 6338
License Dates
Issued
03/01/2017
Expires
03/31/2027
Expires in 12 months
CSLB Last Updated
03/04/2025
License Classifications
Personnel & Officers
CHING TINSUM
Responsible Managing Officer/Chief Executive Officer/President
WANG LIN
Officer
Contractor Bond
Amount: $25,000
Company: OHIO CASUALTY INSURANCE COMPANY (THE)
Bond #32S528870
Effective: 01/01/2023
Workers' Compensation
Owner/officer with no employees — exempt from WC requirement
CSLB designation: Exempt
Complaints & Disciplinary History
This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.
Building Permits
Source: LA City Open Data (LADBS)
otc alterations permit
4015 Ortega St, 94116
recommencement and completion of work approved under pa# 202411155084
$10,000
2026-03-18
otc alterations permit
200 Naylor St, 94112
revision to permit 202508193351: dry rot repair on the back of home, street visible, in addition to work already listed on pa# 202508193351
$6,500
2025-09-02
otc alterations permit
200 Naylor St, 94112
dryrot repair on exterior wall on street facing side. replace 2 windows in kind, same size and location.
$6,000
2025-08-19
otc alterations permit
4015 Ortega St, 94116
revise pa # 2024-1115-5084 to eliminate from the approved scope of work the construction of the fence shown on sheet a105 of the approved drawings and to document that the closet shown in the ground f
$1
2025-08-04
otc alterations permit
4015 Ortega St, 94116
address bldg inspector complaint 202430064. repair existing 6-0 fence. (n) type x 5/8 gysum and garage. enlarge window & door at rear. (n) lighting & electrical at garage & rear yard. replace garage d
$21,500
2025-01-06
otc alterations permit
3256 Scott St, 94123
fix dry rot ext stair planks
$1,000
2023-07-12
otc alterations permit
620 Prentiss St, 94110
(e) living room, dining & kitchen to be demo'd. skylight in dining to be removed. raise (e) ceiling in living/dining/kitchen to under lowest roof joist. new windows & doors - not visible from street,
$75,000
2019-07-10
otc alterations permit
3218 Quintara St, 94116
1st fl.- install a bed room, computer room and bath room
$38,000
2018-09-07
Verify this record on the official state licensing board
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California licensing guide →Data sourced from official state licensing board records. Always confirm critical information directly with the state board.
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