License is active
Source: Contractors State License Board (CSLB)
Licensed
Current and in good standing
Bonded
$25,000 surety bond
Insured
Workers' comp coverage on file
Clean record
No complaints or disciplinary actions
Hiring this contractor?
Get alerts if their license status changes.
You're monitoring this license!
We'll email you if the license status, bond, or complaint history changes.
Something went wrong
Is this your business?
Claim your profile to manage your listing.
Claim request submitted!
We'll be in touch at the email you provided to verify your identity.
Something went wrong
M L S BUILDER INC
- License Number
- 899863
- State
- California
- Status
- active
- Business Type
- Corporation
- Address
- 1017 MACARTHUR BLVD OAKLAND, CA, 94610 Alameda County
- Phone
- (650) 534 7946
License Dates
Issued
07/11/2007
Expires
07/31/2027
Expires in 16 months
CSLB Last Updated
01/26/2026
License Classifications
Personnel & Officers
LEI JIN CAI
Officer
MA KAM CHUNG| MA ADAM KAM CHUNG
Officer
SHAM FOOK HONG
Responsible Managing Officer
Contractor Bond
Amount: $25,000
Company: HUDSON INSURANCE COMPANY
Bond #10097329
Effective: 01/01/2023
Workers' Compensation
Carrier: GREAT AMERICAN ALLIANCE INSURANCE COMPANY
Policy #WCF397884
Effective: 01/31/2026
Expires: 01/31/2027
CSLB designation: Workers' Compensation Insurance
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)
additions alterations or repairs
4221 Geary Bl, 94118
new system of fire sprinkler to be built. ref #201503160999
$25,000
otc alterations permit
234 Balboa St, 94118
fire sprinkler system
otc alterations permit
171 Farallones St, 94112
comply with nov 201636191. legalize 2 windows on west side. remove 1 window and infill at garage
otc alterations permit
85 Turner Tr, 94107
demo 5' long 8' height non-bearing wall without change structural, to enlarge usage, layout of building.
otc alterations permit
228 Balboa St, 94118
fire sprinkler system
otc alterations permit
1984 Great Hy, 94116
comply w/nov #201313041 - revision to pa #2013.07.25.2783: repair dryrotted wooden deck, erection new staircase fro emergency exit. work scope more than 50%.
otc alterations permit
1984 Great Hy, 94116
revision to pa #2013.05.14.6833 - re-routing ada ramp erection new door opening, re-configure ground floor ada kid bathroom, repair staircase from 2nd floor to attic.
otc alterations permit
3255 Balboa St, 94121
horizontal addition -add 43 sf to rear of building. relocate side setback wall and construct new wall. remove partial roof and construct new partial roof
$15,300
additions alterations or repairs
234 Balboa St, 94118
change of use. change (e) building to childcare center
$327,650
otc alterations permit
1028 Balboa St, 94118
kitchen remodel: replace 2nd floor kitchen cabinets.
$52,167
2026-03-05
Showing 10 of 72 permits
Verify this record on the official state licensing board
View on Contractors State License Board (CSLB) →Learn how to verify contractor licenses in California
California licensing guide →Data sourced from official state licensing board records. Always confirm critical information directly with the state board.