Updated: Feb 21, 2026
Location and Projects
Address
20518 E OAK MEADOW LANE, Diamond Bar, CA, 91765
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C G I Marketing Construction
C G I Marketing Corp, 20518 E Oak Meadow Ln, Diamond Bar, CA (Employees: Ichien Chen, Ichien Chen, and Kung Shun Lan) holds a General Building license according to the California license board.
Their BuildZoom score of 102 ranks in the top 11% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring C G I Marketing Corp, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
C G I Marketing Corp Services
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C G I Marketing Corp Contact Information
Phone Number: (909) 908-8698
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Address: 20518 E OAK MEADOW LANE, Diamond Bar, CA 91765
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C G I Marketing Corp Diamond Bar
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
C G I Marketing Corp has a BuildZoom score of 102, which places them above 89% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
4 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that C G I Marketing Corp has worked on at least
7.0 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.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$20k-$50k |
|
1 project
|
$100k-$250k |
|
1 project
|
$1mil+ |
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.
New detached accessory dwelling unit: two bedrooms two bathrooms kitchen with attached 2-car garage
Valuation:
$177,502
Permit #:
B22-43721
Status:
issued
Fee:
N/A
Permit Type:
Nr new residential
Building Type:
N/A
(e plan) *suite a b c* resturant tenant improvement. tenant: jiangnan restaurant
Valuation:
$1,003,778
Permit #:
00946170-SBPT
Status:
issued
Fee:
$6,118
Permit Type:
N/A
Building Type:
N/A
Revision to install (n) 150 amp sub panel lighting fixture spec and lighting outlets and switch location 5. revised aiduct size to reflect existing site conditions ref: elec-2023-0029
Valuation:
N/A
Permit #:
MIS-2024-0091
Status:
issued
Fee:
$290
Permit Type:
N/A
Building Type:
N/A
Interior remodel to include kitchen bathroom remodel. a new bathroom and laundry room and replace (11) windows and (2) doors
Valuation:
$30,000
Permit #:
B22-43412
Status:
issued
Fee:
N/A
Permit Type:
Rr residential al...
Building Type:
N/A
Install one ventilation fan air inlet and alteration of existing duct system for a new bathroom
Valuation:
$0
Permit #:
M24-47085
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of air conditioning and fau system for a new detached accessory dwelling unit
Valuation:
$0
Permit #:
M23-44936
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
10 outlets 32 light fixtures garbage disposal dishwasher range hood washing machine and exhaust fans for interior remodel
Valuation:
$0
Permit #:
E22-43413
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing for a new detached accessory dwelling unit and connect to public sewer
Valuation:
$0
Permit #:
P23-44937
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical for a new detached accessory dwelling unit with 100 amp service panel
Valuation:
$0
Permit #:
E23-44935
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Adding (49) outlets and (18) light fixtures
Valuation:
$0
Permit #:
E24-46068
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Showers clothes washer dish washer lavatories sinks water closet and gas line for interior remodel
Valuation:
$0
Permit #:
P22-43415
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(3) outlets (1) light fixture and exhaust fan for a new bathroom
Valuation:
$0
Permit #:
E24-47084
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Grading/drainage for a new detached accessory dwelling unit
Valuation:
$0
Permit #:
G23-44080
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Revision to reflect (e) conditions for ceiling framing plan 5. revised aiduct size to reflect existing site conditions ref: bldc 2023-0051 as per approved plans
Valuation:
N/A
Permit #:
MIS-2024-0057
Status:
issued
Fee:
$301
Permit Type:
N/A
Building Type:
N/A
Shower lavatory and water closet for a new bathroom
Valuation:
$0
Permit #:
P24-47086
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish existing pool house and garage
Valuation:
$0
Permit #:
D23-44938
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(2) ventilation fans and (2) appliance vent for interior remodel
Valuation:
$0
Permit #:
M22-43414
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen and 2.5 bathroom remodel for residential buildings (no structural changes)
Valuation:
$25,000
Permit #:
22016-40000-33236
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Swimming pool removal with backfill with compacted fill
Valuation:
$0
Permit #:
MISC22-43018
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Swimming pool removal with backfill with compacted fill
Valuation:
$0
Permit #:
G22-43019
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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C G I Marketing Corp Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
C G I Marketing Corp License info
Verified License
| License # | 1006865 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for C G I Marketing Corp at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Twin City Fire Insurance Company |
9
Permits
- Building permit records show that C G I Marketing Corp has worked on 9 permitted projects.
C G I Marketing Corp Employees
IC
Ichien Chen
Officer
IC
Ichien Chen
Officer
KL
Kung Shun Lan
Rmo
KL
Kung Shun Lan
Rmo
SH
Shihhao Hsieh
Ceo / President
SH
Shihhao Hsieh
Ceo / President
TS
Talu Su
Rmo