Updated: Jul 02, 2026
Location and Projects
Address
4641 CLIPPER DR, Discovery Bay, CA, 94505
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O'Brien Contractors Photos
O'Brien Contractors Construction
Serving Discovery Bay and the surrounding East Bay area, O'Brien Contractors brings 25 years of experience to residential construction and remodeling projects. The company specializes in custom home improvement solutions, including kitchen and bathroom remodels, room additions, and general carpentry services. O'Brien Contractors works closely with homeowners to redesign existing spaces or build new additions tailored to each property's needs. Their portfolio features projects ranging from interior renovations to outdoor construction, reflecting expertise in multiple aspects of home improvement. Based in Discovery Bay, O'Brien Contractors serves local neighborhoods and the broader Contra Costa County area, providing tailored contracting services for single-family residences.
O'Brien Contractors Services
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O'Brien Contractors Contact Information
Phone Number: (925) 989-8747
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Address: 4641 CLIPPER DR, Discovery Bay, CA 94505
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O'Brien Contractors Discovery Bay
Quality
97
82nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
O'Brien Contractors has a BuildZoom score of 97, which places them above 82% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
Our building permit records indicate that O'Brien Contractors has worked on at least
1.0 project over the past year.
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.
Pricing
|
1 project
|
$50k-$100k |
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.
Window replacement like for like no change in size new construction. 29 windows total ***field rev 1/30/25 remove and replace front door and side patio door 6'8h x 6'w and replace with new 8'h x 6'w. use existing header raise it to 8'h***
Valuation:
$87,000
Permit #:
B25-0114
Status:
final
Fee:
$1,869
Permit Type:
N/A
Building Type:
N/A
Hallway bathroom remodel-replace vanity sink/fixtures toilet flooring and exhaust fan in same locations. remove tub and install walk-in shower with tile at pan and walls. install new led recessed light and replace existing light above sink with led fixture
Valuation:
$8,500
Permit #:
D180307
Status:
final
Fee:
$543
Permit Type:
Add/alter single ...
Building Type:
N/A
Master bathroom remodel-remove non-load bearing walls at water closet; widen existing doorway into bath; replace toilet vanity sink/fixtures and flooring in same locations. remove tub and expand walk-in shower with new tile at walls. install new led recessed light fixtures surface-mount fixtures and exhaust fan. addition new receptacle at lower vanity. (95 sf)
Valuation:
$10,500
Permit #:
D180412
Status:
final
Fee:
$543
Permit Type:
Add/alter single ...
Building Type:
N/A
Bathroom remodel: replace shower tub and vanity in same location
Valuation:
$19,000
Permit #:
D200382
Status:
final
Fee:
$544
Permit Type:
Add/alter single ...
Building Type:
N/A
Remodel existing bathroom #2 like for like new tile fixtures and cabinets
Valuation:
N/A
Permit #:
BIAL19-003584
Status:
final
Fee:
$808
Permit Type:
N/A
Building Type:
N/A
Remodel existing bathroom #1 like for like new tile fixtures and cabinets
Valuation:
N/A
Permit #:
BIAL19-003583
Status:
final
Fee:
$808
Permit Type:
N/A
Building Type:
N/A
Remodel existing master bathroom like for like new tile fixtures and cabinets
Valuation:
N/A
Permit #:
BIAL19-003582
Status:
final
Fee:
$808
Permit Type:
N/A
Building Type:
N/A
Addition 26 garage cov por 63 rem cov por 197
Valuation:
$70,000
Permit #:
B19-013596
Status:
final
Fee:
$1,685
Permit Type:
N/A
Building Type:
N/A
Revise truss design for residential addition
Valuation:
N/A
Permit #:
D180427-REV01
Status:
final
Fee:
$180
Permit Type:
N/A
Building Type:
N/A
Remodel hall bathroom. remove and replace toilet vanity shower like for like. remove existing tile at the tub and floor to install new tile. new led light at vanity receptacle to gfci
Valuation:
$6,000
Permit #:
B17-1049
Status:
final
Fee:
$296
Permit Type:
N/A
Building Type:
N/A
Master bathroom remodel-replace shower vanity sink exhaust fan and toilet; install led lighting; hall bathroom remodel-replace tub/shower sink vanity toilet and exhaust fan; install led lighting
Valuation:
$15,000
Permit #:
D170106
Status:
applied
Fee:
$434
Permit Type:
N/A
Building Type:
N/A
Remodel guest bathroom like for like remove existing tile and vanity & reinstall new tile and vanity change (2) existing lighting to led a receptacles gfci
Valuation:
$16,000
Permit #:
B17-0805
Status:
final
Fee:
$297
Permit Type:
N/A
Building Type:
N/A
231 sq. ft. addition; kitchen and bathroom remodel; new gas line to fireplace
Valuation:
$230,000
Permit #:
D180427
Status:
final
Fee:
$2,579
Permit Type:
Add/alter single ...
Building Type:
N/A
Bathroom remodel same layout addition (8) 8 new led can lights update all electrical switches addition exhaust fan
Valuation:
$10,300
Permit #:
B16-2352
Status:
final
Fee:
$286
Permit Type:
N/A
Building Type:
N/A
1st & 2nd floor addition to enlarge kitchen dining room family room master bedroom master bathroom and create large bonus room. rebuild interior stairs. *** 10/21/2022 - delta-4 revision to increase addition upstairs and addition covered entry - bdb ***
Valuation:
N/A
Permit #:
BIAD20-005571
Status:
final
Fee:
$13,544
Permit Type:
N/A
Building Type:
N/A
56 sf of kitchen expansion and remodel master bathroom remodel
Valuation:
$17,000
Permit #:
B16-0818
Status:
final
Fee:
$1,100
Permit Type:
N/A
Building Type:
N/A
Cut existing window opening in and down to install new patio door in living room
Valuation:
$8,000
Permit #:
D141070
Status:
final
Fee:
$248
Permit Type:
Add/alter single ...
Building Type:
N/A
Dedicated gas line installation 60 in length 3/4 diam 65kbtu
Valuation:
$450
Permit #:
B14-1302
Status:
final
Fee:
$31
Permit Type:
N/A
Building Type:
N/A
Replace 2 existing windows in master bathroom install new wall and 1/2 wall in master bathroom install 2 new windows in master bedroom. replace tub and tile
Valuation:
N/A
Permit #:
BIAL17-013476
Status:
final
Fee:
$713
Permit Type:
N/A
Building Type:
N/A
Replace shower enclosure with tub
Valuation:
$8,700
Permit #:
B14-2372
Status:
final
Fee:
$212
Permit Type:
N/A
Building Type:
N/A
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Projects
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Verified License
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O'Brien Contractors License info
Verified License
| License # | 750337 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for O'Brien Contractors at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
22
Permits
- Building permit records show that O'Brien Contractors has worked on 22 permitted projects.
O'Brien Contractors Employees
JB
James Christopher O Brien
Sole Owner
JO
James Christopher O'brien
Sole Owner