Updated: Apr 04, 2026
Location and Projects
Address
31375 Santa Fe Way, Union City, CA, 94587
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J Building Construction
J Building, 31375 Santa Fe Way, Union City, CA (Employees: Hao Jin and Zhongmin Liu) holds a General Building license according to the California license board.
Their BuildZoom score of 107 ranks in the top 6% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring J Building, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
J Building Services
Start a project today:
Custom Home Build
New Home Construction
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Other Residential Remodel
Drafting
Small Multi-Family New Cons...
Small Multi-Family Remodel ...
Whole Home Remodel
Modular Home Construction
Addition
Vertical Addition
Horizontal Addition
Vertical and Horizontal Add...
Attic Remodel
Single Room Remodel
Cosmetic Remodel
Building Design
Addition Design
ADU Design
Basement Design
Bathroom Design
Custom Home Design
Healthcare Facility Design
Hotel Design
Industrial Building Design
Kitchen Design
Modular Home Design
Multi-Family Building Design
Office Building Design
Office Space Designer
Pool and Spa Design
J Building Contact Information
Phone Number: (510) 901-9162
Address: 31375 Santa Fe Way, Union City, CA 94587
J Building Union City
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
J Building has a BuildZoom score of 107, which places them above 94% of 336,931 contractors in California.
Activity
|
5 projects
|
2025 |
|
11 projects
|
2024 |
|
10 projects
|
2023 |
Our building permit records indicate that J Building has worked on at least
26.0 projects over the past 3 years.
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.
Experience
|
11 projects
|
Home Additions |
|
10 projects
|
Kitchen remodels |
|
6 projects
|
Multi-room remodels |
Analyzing permits over the last 4 years shows that J Building mostly works on
home addition
and kitchen remodel
projects.
Pricing
|
1 project
|
< $5k |
|
3 projects
|
$5k-$20k |
|
2 projects
|
$20k-$50k |
|
4 projects
|
$50k-$100k |
|
6 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $69,090. This graph shows the distribution of these job values.
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.
Construct an approx. 298sqft addition to rear of home to include one bedroom and bathroom reconfigure second floor master bathroom construct a new approx. 257sqft second story exterior deck off of bedroom with railing repair and replace all existing roof
Valuation:
$150,000
Permit #:
B22-2000
Status:
final
Fee:
$5,241
Permit Type:
N/A
Building Type:
N/A
- major kitchen remodel; new window - (2) major baths; alter wall in bathroom #2 - change front door to french doors - r/r all windows no size change - (n) window in living room - (n) window in kitchen - (n) 200amp panel upgrade - relocate fau to attic
Valuation:
$68,180
Permit #:
2022 705191 RS
Status:
final
Fee:
$1,368
Permit Type:
Single-family
Building Type:
N/A
Scope of work: -converting 53 sq. ft. garage space to (n) family room. -remodel hallway closet for crawl space access. -shrink (e) bedroom #1 closet sliding door to (n) door. -remove hvac unit closet to create (n) closet for bedroom #2. -remodel/reconfigure master bedroom master bathroom and walk-in-closet. -major kitchen remodel. addition (n) island. -remodel hallway bathroom. -demo ... see more
Valuation:
$126,283
Permit #:
2022 701010 RS
Status:
issued
Fee:
$1,310
Permit Type:
Single-family
Building Type:
N/A
Rev 1 to (bralt-24-0053) 1. revise bathroom layout. no shower pan. relocated toilet and bathroom tub. enlarge bathroom windows. 2. remove sink in laundry room. 3. remove bedroom #1 built in closet addition wardrobes
Valuation:
$2,000
Permit #:
BRALT-24-0399
Status:
expired
Fee:
$300
Permit Type:
Interior remodel
Building Type:
N/A
Drl: new detached 1000sqft adu: 2 bed 2 bathroom. concurernt pln2022-00426
Valuation:
$280,000
Permit #:
BLD2022-07756
Status:
complete
Fee:
$8,695
Permit Type:
N/A
Building Type:
N/A
This project replaces the old kitchen cabinet sink and countertop with new kitchen cabinet countertop and sink. in addition the existing single panel windows and sliding glass door will be replaced by double panel windows and sliding door. no changes to electrical wiring plumbing nor gas pipe
Valuation:
$20,000
Permit #:
BLD2024-04106
Status:
complete
Fee:
$436
Permit Type:
Alteration
Building Type:
N/A
Remodel the existing kitchen (no layout change) including: 1. replace cabinets countertop range and sink in (e)kitchen 2. replace (e)kitchen receptacles with gfci receptacels 3. replace (e)kitchen and (e)foyer floor with (n)tile existing kitchen appliances smoke detector carbon monoxide alarm lighting fixtures remain in use
Valuation:
$30,500
Permit #:
CBW22-0049
Status:
filed
Fee:
$1,684
Permit Type:
N/A
Building Type:
N/A
Scope of work to include: 2nd floor master bathroom remodel **no work to 1st floor** -56 sq ft master bathroom remodel (2nd floor) -removing (e) seperation between water closet and vanity -reframe to install pocket door -remove and replace (e) plumbing fixtures at same location like for like **associated electrical included...new exhaust fan (mechanical) **note: permit to final expire... see more
Valuation:
$7,550
Permit #:
2021 061212 RS
Status:
issued
Fee:
N/A
Permit Type:
Single-family
Building Type:
N/A
New 650 sqft studio/1bath detached adu. (ccr: pln2022-00427). see bld2022-09164 for main residence bathroom remodel
Valuation:
$200,000
Permit #:
BLD2022-07767
Status:
complete
Fee:
$7,684
Permit Type:
N/A
Building Type:
N/A
Remodel kitchen and bathroom including wall alterations re-pipe plumbing of the house addition a water pressure regulator and replace the water shut off valve. re-route electric wires install led recessed ceiling lights in kitchen and living room. no change on the structure or the exterior wall. revision #1 - new 40 gallon water heater of same size replaced in the same place. (issued ... see more
Valuation:
$60,000
Permit #:
BD-2021-278849
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Rebuild: (n) 614 sf 1st floor addition. (n) 547 sf 2ns floor addition. (n) 135 sf covered porch. interior remodel of 1887 sf (e) single family residence
Valuation:
N/A
Permit #:
DEV21-0677
Status:
final
Fee:
$8,170
Permit Type:
N/A
Building Type:
N/A
Interior remodel. reconfigure and update kitchen. hallway bathroom remodel like for like. master bathroom remodel like for like. replace 1 kitchen window with larger window. replace 1 bathroom window. remove 1 dining room window
Valuation:
$60,000
Permit #:
B21-2710
Status:
approved partial
Fee:
$2,357
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel. no layout change. demolish kitchen ceiling. replace two fireplaces located in living room and family room
Valuation:
$150,000
Permit #:
BLD2023-00037
Status:
complete
Fee:
$3,748
Permit Type:
Alteration
Building Type:
N/A
Construction new detached adu (800 sqft) at the rear setback to consist of 3 bedrooms and 3 bathrooms. pln2021-00289 approved
Valuation:
$220,000
Permit #:
BLD2022-00001
Status:
complete
Fee:
$7,511
Permit Type:
New residential -...
Building Type:
N/A
A 367 square feet interior alteration to a single family residence that includes modification to the kitchen remove wall in kind. first floor bedroom and relocation of bedroom door note: a separate permit has been issued for the remodel of 3 baths and 1 half bathroom laundry room remodel. remodel replacing lights tiles and receptacles bld2024-02116
Valuation:
$50,000
Permit #:
BLD2024-00623
Status:
final
Fee:
$2,073
Permit Type:
Alteration
Building Type:
N/A
Kitchen remodel replace cabinet and lighting fixture. addition wall to create a laundry room area next to kitchen
Valuation:
$36,123
Permit #:
202306140081
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Construct new detached adu of 702 sqft living at rear of property. main house address: 7651 fairoaks dr adu new address: 7653 fairoaks dr
Valuation:
$126,360
Permit #:
B20-2683
Status:
final
Fee:
$10,337
Permit Type:
N/A
Building Type:
N/A
Scope of work: -major kitchen remodel- (n) location -major bathroom remodel
Valuation:
$75,500
Permit #:
2021 043225 RS
Status:
issued
Fee:
N/A
Permit Type:
Duplex
Building Type:
N/A
Kitchen remodel no wall layout change. -replace kitchen cabinet counter top appliances
Valuation:
$15,000
Permit #:
BL-ROVC-2024-00279
Status:
complete
Fee:
$701
Permit Type:
N/A
Building Type:
N/A
A single family residence to remodel 3 baths and 1 half bathroom laundry room remodel. remodel replacing lights tiles and receptacles note: a separate permit has been issued for the kitchen wall-in kind and bedroom remodel bld2024-00623
Valuation:
$40,000
Permit #:
BLD2024-02116
Status:
final
Fee:
$1,781
Permit Type:
Alteration
Building Type:
N/A
J Building Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
J Building License info
Verified License
| License # | 1070192 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Partnership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for J Building at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
52
Permits
- Building permit records show that J Building has worked on 52 permitted projects.
J Building Employees
HJ
Hao Jin
Ceo / President
ZL
Zhongmin Liu
Rmo