Updated: Jul 06, 2025
Location and Projects
Address
21812 STONEPINE DRIVE, Diamond Bar, CA, 91765
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Chen Gang Architect
Chen Gang, 21812 Stonepine Dr, Diamond Bar, CA holds a Architect license according to the California license board.
Their BuildZoom score of 101 ranks in the top 12% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Chen Gang, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Chen Gang Services
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Chen Gang Contact Information
Address: 21812 STONEPINE DRIVE, Diamond Bar, CA 91765
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Chen Gang Diamond Bar
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Chen Gang has a BuildZoom score of 101, which places them above 88% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
3 projects
|
2024 |
Our building permit records indicate that Chen Gang has worked on at least
5.0 projects over the past 2 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
|
$50k-$100k |
|
1 project
|
$100k-$250k |
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.
Storage locker to be relocated signage to be replaced to comply with cbc 11b stanchion to be replaced cane detect rail added window covering to be relocated doors to be adjuste new ramp configurations to be constructed including adjustments to landing slope and handrail mounting electrical
Valuation:
$200,000
Permit #:
202401224358
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Mechanical permit to install replacement forced air unit air condition unit with associated piping and venting to an existing habitable structure. 2-split system converted from gas to electric heat pump system. verify and/or install listed smoke and carbon monoxide alarms or combination alarms throughout the existing dwelling as required by code. csa 48 scc fire sra-high
Valuation:
N/A
Permit #:
B-246139
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Single residence
Residential dwelling (brs) - adu - additional dwelling unit
2024-09-16
Convert existing permitted rooms (bar130085) into an adu (728 sq.ft.) with a kitchen (2) restrooms (3) bedrooms & living room
Valuation:
$82,009
Permit #:
BRS2401004
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Encroachment permit (enc) - enc03 - encroachment permit minor
2024-09-19
Construct and maintain (3) concrete driveway approaches within the grand avenue (18108) r/w
Valuation:
N/A
Permit #:
ENC24090315
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(e plan) roof mounted photovoltaic system with battery back up
Valuation:
N/A
Permit #:
00943572-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(e plan) roof mounted photovoltaic system with battery back up
Valuation:
N/A
Permit #:
00943567-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(e-plan) convert part of the garage to make additional to office
Valuation:
$14,650
Permit #:
00850529-RBPR
Status:
triage
Fee:
$188
Permit Type:
N/A
Building Type:
N/A
Retaining wall in rear yard and 2 new air conditioning units
Valuation:
$7,000
Permit #:
00647607-RBPR
Status:
final
Fee:
$478
Permit Type:
N/A
Building Type:
N/A
Retaining wall in rear yard and 2 new air conditioning units
Valuation:
$0
Permit #:
00643415-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove non bearing wall in kitchen and addition of one bathroom level sunken living room drywall garage
Valuation:
$0
Permit #:
00630078-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential remodel *code enforcement case see susan craft
Valuation:
$0
Permit #:
00664918-RRA
Status:
pending
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(e-plan) convert part of the garage to make additional sqft to office
Valuation:
N/A
Permit #:
00844617-RRA
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(e-plan) roof mounted photovoltaic system
Valuation:
N/A
Permit #:
00875709-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1st & 2nd floor room additions
Valuation:
$74,013
Permit #:
00553568-RBPR
Status:
final
Fee:
$1,071
Permit Type:
N/A
Building Type:
N/A
Teneant improvement for video store and juice bar
Valuation:
$36,000
Permit #:
B06-001-135
Status:
final
Fee:
$1,438
Permit Type:
Dwellings
Building Type:
N/A
1st & 2nd floor room additions
Valuation:
N/A
Permit #:
00544107-RRA
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Encroachment permit (enc) - enc01 - encroachment permit extensive
2024-09-03
See enc24090315. applying for permit for existing driveway's within tolton avenue right of way
Valuation:
N/A
Permit #:
ENC24090292
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Chen Gang Reviews
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Verified License
BuildZoom confirmed this contractor's license
Chen Gang License info
Verified License
| License # | C27403 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom verified this license was active as of July 2025.
Verify this license's status for Chen Gang at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
12
Permits
- Building permit records show that Chen Gang has worked on 12 permitted projects.
Chen Gang Employees
CG
Chen Gang
Owner