Updated: May 23, 2026
Location and Projects
Address
320 W CLARY AVENUE, San Gabriel, CA, 91776
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Chiu Patrick Sin Architect
Their BuildZoom score of 0 does not rank in the top 50% of California contractors.
If you are thinking of hiring Chiu Patrick Sin, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Chiu Patrick Sin Services
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Chiu Patrick Sin Contact Information
Phone Number: (626) 308-9983
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Address: 320 W CLARY AVENUE, San Gabriel, CA 91776
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Chiu Patrick Sin San Gabriel
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Chiu Patrick Sin, click “This is My Business” to update your information.
Activity
|
9 projects
|
2025 |
|
8 projects
|
2024 |
|
17 projects
|
2023 |
Our building permit records indicate that Chiu Patrick Sin has worked on at least
34.0 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
|
8 projects
|
Commercial Renovations |
|
7 projects
|
Home Additions |
|
3 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Chiu Patrick Sin mostly works on
commercial renovation
and home addition
projects.
Pricing
|
1 project
|
< $5k |
|
7 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
4 projects
|
$50k-$100k |
|
8 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $67,500. 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.
Eplan: tenant improvement - mezzanine addition to existing retail store : building new mezzanine and interior non - bearing walls; building (2) accessible mens & women's restrooms on 1st floor (1)accessible all-gender restroom on mezzanine
Valuation:
$100,000
Permit #:
24016-10000-29916
Status:
triage
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement to the existing restaurant
Valuation:
$80,000
Permit #:
24016-10000-12340
Status:
plancheck
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Main house: remove unpermitted structural convert (e) patio to living space 240 sf addition 346 sf at first floor addition 300sf at second floor apply a jadu 498sf. at existing main house area adu: building an adu 1200sf
Valuation:
$292,045
Permit #:
B21-0092
Status:
final
Fee:
$26,830
Permit Type:
N/A
Building Type:
N/A
Mechanical - int tenant improvement. to expand (e) restaurant - combine suite d & a to become suite d. incld (n) partition walls (n) service counter (n) kitchen equipments (n) restrooms & relocate electrical panel. *** u-sushi & grill *** entered by: woom
Valuation:
N/A
Permit #:
M2020-001412
Status:
final
Fee:
$986
Permit Type:
N/A
Building Type:
N/A
Main house interior remodel jadu 425 sq. ft. demolish (e) garage and porch building new 2-car garage 431 sq. ft. attached to the main house. 2nd story main house addition 433 sq. ft. above new garage. new detached adu 1 198 sq. ft. with front porch 40 sq. ft
Valuation:
$260,711
Permit #:
B20-0635
Status:
expired
Fee:
$25,227
Permit Type:
N/A
Building Type:
N/A
Tenant improvement for existing restaurant. new lighting controls receptacles. total affected area is 1359 sqft
Valuation:
N/A
Permit #:
25041-10000-22790
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Permit to complete work started on b15-0906 new retail store shell only
Valuation:
$646,391
Permit #:
B23-0128
Status:
expired
Fee:
$6,448
Permit Type:
N/A
Building Type:
N/A
Eplan: tenant improvement to (e) restaurant
Valuation:
$150,000
Permit #:
25016-10000-04033
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Electrical - int tenant improvement. to expand (e) restaurant - combine suite d & a to become suite d. incld (n) partition walls (n) service counter (n) kitchen equipments (n) restrooms & relocate electrical panel. *** u-sushi & grill *** entered by: woom
Valuation:
N/A
Permit #:
E2020-001415
Status:
final
Fee:
$856
Permit Type:
N/A
Building Type:
N/A
Int tenant improvement. to expand (e) restaurant - combine suite d & a to become suite d. incld (n) partition walls (n) service counter (n) kitchen equipments (n) restrooms & relocate electrical panel. *** u-sushi & grill *** (cofo in file) ---pplan --- *** afif *** entered by: woom
Valuation:
N/A
Permit #:
B2020-001411
Status:
final
Fee:
$3,952
Permit Type:
N/A
Building Type:
N/A
Building commercial - alteration remodel repair
2023-07-30
Tenant improvement: new reception counter and (12) fitness pilates equipment for new fitness business im=x pilates. all work shall comply with 2019 ca building codes. zon-2022-00149
Valuation:
$5,000
Permit #:
BLDC-2022-00095
Status:
complete
Fee:
$306
Permit Type:
N/A
Building Type:
N/A
Plan check for energy compliance only scope of work is a change of use from an existing restaurant to a new pharmacy and includes an indoor lighting area of approximately: 1912 sqft. all circuits are existing to remain
Valuation:
N/A
Permit #:
24041-10000-01493
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Commercial and industrial plumbing
2023-05-23
Plumbing - int tenant improvement. to expand (e) restaurant - combine suite d & a to become suite d. incld (n) partition walls (n) service counter (n) kitchen equipments (n) restrooms & relocate electrical panel. *** u-sushi & grill *** entered by: woom
Valuation:
N/A
Permit #:
P2020-001413
Status:
final
Fee:
$1,692
Permit Type:
N/A
Building Type:
N/A
Revision related to b21-0092: main house jadu - revisions on insulation and air conditioning unit to mini split adu - layout revision
Valuation:
N/A
Permit #:
B22-1630
Status:
final
Fee:
$717
Permit Type:
N/A
Building Type:
N/A
Revision to b20-0635 1. relocate front bathroom location 2. revise jadu bathroom location 3. revise main house 2nd floor layout on 3 bedrooms 4. revise adu interior wall location
Valuation:
N/A
Permit #:
B21-0991
Status:
final
Fee:
$590
Permit Type:
N/A
Building Type:
N/A
Ti: to subdivide building to create new restaurant (1 250 sf) chop stop for suite # e-2
Valuation:
$125,000
Permit #:
B202206065
Status:
final
Fee:
$12,785
Permit Type:
N/A
Building Type:
N/A
Tenant improvmt see accela: bld-2020-00318 -ti - building interior non-bearing walls new counters & plumbing fixtures associated electrical & plumbing works existing accessible restroom hvac system is existing; duct work only - 2000 sqft
Valuation:
$70,000
Permit #:
B20-000-771
Status:
ready to issue
Fee:
$1,842
Permit Type:
B business
Building Type:
N/A
General hvac and type i hood
Valuation:
N/A
Permit #:
25044-10000-02737
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Change of use from restaurant to culinary school. tenant improvement to include: building interior non-bearing walls new kitchen equipments and plumbing fixtures addition 2 exhaust hood systems
Valuation:
$100,000
Permit #:
20016-10000-21122
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
16 type i hoods
Valuation:
N/A
Permit #:
24044-10000-08049
Status:
plancheck
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
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Chiu Patrick Sin License info
License Not Verified
| License # | C12852 |
| Status | Active |
| State | California |
| Type | Architect |
- When BuildZoom last verified this license, it had an expiration date of October, 2025. Check the current license status of Chiu Patrick Sin with the California Architect License Board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 746593 |
| Status | Inactive |
| State | California |
| Type | General Building, Plumbing, Fire Protection |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Chiu Patrick Sin at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are Chiu Patrick Sin, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
290
Permits
- Building permit records show that Chiu Patrick Sin has worked on 290 permitted projects.
Chiu Patrick Sin Employees
CS
Chiu Patrick Sin
Owner
PC
Patrick Sin Chiu
Sole Owner