Updated: Feb 02, 2026
Location and Projects
Address
8932 E. MISSION DR. #101, Rosemead, CA, 91770
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Michael Cheng Ko Sun Architect
Michael Cheng Ko Sun, 8932 E Mission Dr, Rosemead, CA holds a Architect license and 1 other license according to the California license board.
Their BuildZoom score of 103 ranks in the top 10% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Michael Cheng Ko Sun, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Michael Cheng Ko Sun Services
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Michael Cheng Ko Sun Contact Information
Phone Number: (626) 617-9549
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Address: 8932 E. MISSION DR. #101, Rosemead, CA 91770
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Michael Cheng Ko Sun Rosemead
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Michael Cheng Ko Sun has a BuildZoom score of 103, which places them above 90% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
2 projects
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that Michael Cheng Ko Sun has worked on at least
9.0 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
|
3 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Michael Cheng Ko Sun mostly works on
new construction
projects.
Pricing
|
1 project
|
$20k-$50k |
|
3 projects
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
|
2 projects
|
$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 unit building 2 related to b24-0754 & b24-0956
Valuation:
$269,366
Permit #:
B24-0955
Status:
plancheck
Fee:
$3,929
Permit Type:
N/A
Building Type:
N/A
New detached 2-story units with attached garage (5 units) building 2
Valuation:
$225,327
Permit #:
B24-0754
Status:
plancheck
Fee:
$5,298
Permit Type:
N/A
Building Type:
N/A
New 2 story accessory dwelling unit with attached garage per ab 494 and sb 229. see comments
Valuation:
$140,000
Permit #:
19010-10000-02577
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Revision to b17-0998 relocation of walls toilets & doors to an existing approved community center (residential area)
Valuation:
N/A
Permit #:
B22-1260
Status:
final
Fee:
$1,427
Permit Type:
N/A
Building Type:
N/A
New 5 story mixed use: hotel 136 guest room condominium 84 units. garage property walls 05/20/2021 pool - see b19-0959
Valuation:
$52,083,348
Permit #:
B17-0998
Status:
final
Fee:
$2,671,646
Permit Type:
N/A
Building Type:
N/A
Non-residential building alteration-repair
2021-10-22
Tenant improvement. change occupancy b
Valuation:
$161,448
Permit #:
B19-0746
Status:
plancheck
Fee:
$8,025
Permit Type:
N/A
Building Type:
N/A
Addition to (e) lobby area at first floor & remove one (e) elevator & building a new elevator from ground level through 5th floor & extend all levels corridors around the elevator & construct a new metal canopies on front of entrance
Valuation:
$200,000
Permit #:
17016-10000-28731
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Revision - water proofing
Valuation:
$52,083,348
Permit #:
B19-0567
Status:
final
Fee:
$252
Permit Type:
N/A
Building Type:
N/A
Revision - addendum 3.5 new sand oil interceptor related to b17-0998 05/26/2020 this is related to b20-0211
Valuation:
N/A
Permit #:
B20-0123
Status:
final
Fee:
$354
Permit Type:
N/A
Building Type:
N/A
Revision: basement level - addition oil and sand separator 05/26/2020 this is related to b20-0123
Valuation:
N/A
Permit #:
B20-0211
Status:
final
Fee:
$665
Permit Type:
N/A
Building Type:
N/A
168 sf new gazebo 192 sf new gazebo
Valuation:
$37,793
Permit #:
B22-1250
Status:
final
Fee:
$2,238
Permit Type:
N/A
Building Type:
N/A
Revision: basement level - catch basin structure
Valuation:
N/A
Permit #:
B20-0212
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Revision - to remove swimming pool from scope of work related to b17-0998
Valuation:
N/A
Permit #:
B19-0345
Status:
final
Fee:
$1,829
Permit Type:
N/A
Building Type:
N/A
Building (n) 6 story & 2 levels of basement hotel building with 100 rooms total 60 499 sf 2 of 2
Valuation:
N/A
Permit #:
19010-10000-05719
Status:
triage
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Revision to concrete beams related to b17-0998
Valuation:
N/A
Permit #:
B20-0035
Status:
final
Fee:
$295
Permit Type:
N/A
Building Type:
N/A
Revision - structural revision related to b17-0998 see addendum
Valuation:
N/A
Permit #:
B19-0535
Status:
final
Fee:
$2,869
Permit Type:
N/A
Building Type:
N/A
Demolish existing retail/laundry building 8 228 sf. sewer cap ______ required. 1 of 2
Valuation:
N/A
Permit #:
19019-10000-06192
Status:
triage
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement. for hotel lobby - 3 950 sq. ft. tenant improvement. for resturant - 1 791 sq. ft. tenant improvement. for kitchen - 496 sq. ft
Valuation:
$956,504
Permit #:
B20-0634
Status:
final
Fee:
$38,724
Permit Type:
N/A
Building Type:
N/A
Electrical panels (84) and sub-panels (84) for condos *301-303 *305-313 *315-323 *401-403 *405-413 *415-423 *501-503 *505-513 *515-523 *601-603 *605-613 *615-623
Valuation:
N/A
Permit #:
B22-0560
Status:
final
Fee:
$17,826
Permit Type:
N/A
Building Type:
N/A
Special inspection to determine unpermitted construction done to building. includes unpermitted tenant improvement in front of building
Valuation:
N/A
Permit #:
B17-000-166
Status:
issued
Fee:
$305
Permit Type:
Offices
Building Type:
N/A
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Michael Cheng Ko Sun Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Michael Cheng Ko Sun License info
License Not Verified
| License # | C29323 |
| Status | Active |
| State | California |
| Type | Architect |
| Business Type | Sole Ownership |
- When BuildZoom last verified this license, it had an expiration date of September, 2025. Check the current license status of Michael Cheng Ko Sun with the California Architect License Board
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 764512 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Michael Cheng Ko Sun at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Sequoia Insurance Company |
132
Permits
- Building permit records show that Michael Cheng Ko Sun has worked on 132 permitted projects.
Michael Cheng Ko Sun Employees
MS
Michael Cheng Ko Sun
Sole Owner