✓

License is active

Source: Contractors State License Board (CSLB)

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Licensed

Current and in good standing

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Bonded

$25,000 surety bond

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Insured

Workers' comp coverage on file

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Clean record

No complaints or disciplinary actions

California licensing requirements →

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O'SULLIVAN & SON CONSTRUCTION INC

License Number: 902262
State: California
Status: active
Business Type: Corporation
Address: P O BOX 1111 SAN RAMON, CA, 94583 Contra Costa County
Phone: (415) 235 5006

License Dates

Issued

08/20/2007

Expires

04/30/2027

Expires in 13 months

Reissued

04/28/2009

CSLB Last Updated

11/12/2025

License Classifications

B General Building Contractor

Personnel & Officers

O'SULLIVAN MOLLIE KAY

Officer

Former

O'SULLIVAN OLIVER JOHN

Responsible Managing Officer/Chief Executive Officer/President

Active

Contractor Bond

Bonded

Amount: $25,000

Company: AMERICAN CONTRACTORS INDEMNITY COMPANY

Bond #100064392

Effective: 01/01/2023

Workers' Compensation

Has policy

Carrier: NORGUARD INSURANCE COMPANY

Policy #OSWC669283

Effective: 09/14/2025

Expires: 09/14/2026

CSLB designation: Workers' Compensation Insurance

Complaints & Disciplinary History

No disciplinary actions on file

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

185 Upland Dr, 94127

remove existing countertop and replace with new countertop in kitchen.

$1,500

2025-09-17

complete

otc alterations permit

2580 Clay St, 94115

revision to pa# 2024-1202-5893 revision to lower exterior deck foot print & deck foundation

2025-02-27

complete

otc alterations permit

2582 Clay St, 94115

rev 202409251547 to include demo of (e) rear deck and construction of (n) deck. replace windows within the same opening facing the side and rear. (n) opening for fire rated door between garage and int

$25,000

2024-12-04

complete

otc alterations permit

2582 Clay St, 94115

renovation of (e) kitchen and bathrooms. main floor bathroom exterior wall to be infilled to align with footprint of (e) floor above. (e) fixtures to be replaced. new lighting, electrical, and exhaust

$112,000

2024-10-15

complete

otc alterations permit

2580 Clay St, 94115

remove non-load bearing wall. new tub. double vanity toilet and bathroom remdodel.

$30,000

2024-09-17

complete

otc alterations permit

669 Marina Bl, 94123

voluntary structural strengthening in garage along north, east, west & south wall, by adding plywood sheathing and sill anchors.

$40,000

2024-06-24

complete

otc alterations permit

1370 Valencia St, 94110

#5: remodel bath room and make closet bigger. close up door between bathroom and closet. move bathroom entry door. new tub, vanity, and toilet.

$50,000

2024-05-07

complete

otc alterations permit

225 Gough St, 94102

ground level of interior tenant improvemnet for interior design firm, scope of work includes new finishes, new non-structural partitions, new doors and glazing, new ada restroom, new plumbing fixtures

$150,000

2023-11-27

complete

otc alterations permit

753 Vermont St, 94107

revision to pa 2023-0526-8691 "to remove car charger from scope of work"

2023-11-08

complete

otc alterations permit

753 Vermont St, 94107

1/f: ugrade electrical in living room & bedroom 3, remove fireplace, patch floor/walls in-kind; 2/f: add new bathroom, remodel (e) bathroom; garage: install new car charger

$40,000

2023-07-06

complete

Showing 10 of 21 permits

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Data sourced from official state licensing board records. Always confirm critical information directly with the state board.