Updated: Jun 23, 2026
Location and Projects
Address
2606 RENTON WAY, Castro Valley, CA, 94546
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Yao Kun Chen Architect
Yao Kun Chen, 2606 Renton Way, Castro Valley, CA holds a Architect license and 1 other license according to the California license board.
Their BuildZoom score of 106 ranks in the top 7% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Yao Kun Chen, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Yao Kun Chen Services
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Yao Kun Chen Contact Information
Address: 2606 RENTON WAY, Castro Valley, CA 94546
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Yao Kun Chen Castro Valley
Quality
106
93rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Yao Kun Chen has a BuildZoom score of 106, which places them above 93% of 336,931 contractors in California.
Activity
|
23 projects
|
2025 |
|
19 projects
|
2024 |
|
18 projects
|
2023 |
Our building permit records indicate that Yao Kun Chen has worked on at least
60.0 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
|
23 projects
|
Home Additions |
|
10 projects
|
Commercial Renovations |
|
3 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Yao Kun Chen mostly works on
home addition
and commercial renovation
projects.
Pricing
|
6 projects
|
< $5k |
|
7 projects
|
$5k-$20k |
|
6 projects
|
$20k-$50k |
|
3 projects
|
$50k-$100k |
|
11 projects
|
$100k-$250k |
The typical size of their permits is approximately $40,000. 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.
Demolish portion of (e) office & warehouse space with the following scope of work: a. remove 1 non-load bearing wall at warehouse 1. b. remove portion of office area non-load bearing walls and ceilings. remove lights and electrical wiring at associated areas rev 1 delta 1 -- added demolition of storage room at the south side of warehouse to scope
Valuation:
$25,000
Permit #:
BCDEMO-25-0001
Status:
final
Fee:
$2,052
Permit Type:
Complete
Building Type:
N/A
New 663 sq. ft. detached pool house with a 79 sqft porch- incl. full bathroom and common area + heat pump mini-split unit addition replacement tree at the street frontage
Valuation:
$200,000
Permit #:
B24-3494
Status:
plancheck
Fee:
$6,179
Permit Type:
N/A
Building Type:
N/A
Renovate existing house with the following: renovate kitchen relocate entry door and foyer area renovate existing bathrooms reduce size of bedroom 4 - change to office raise floor elevation @ family room by 2x floor framing infill. 984 sf new addition towards the rearyard
Valuation:
$250,000
Permit #:
BLD2023-06832
Status:
triage
Fee:
$200
Permit Type:
Addition
Building Type:
N/A
Interior remodel: remove wall between kitchen and family room reconfigure kitchen new electrical/lighting throughout house reconfigure master bedroom/bathroom/walk-in-closet convert living room to a new bedroom replace and addition new windows and relocate direct entrance from house to garage
Valuation:
$185,000
Permit #:
B24-3593
Status:
issued
Fee:
$6,261
Permit Type:
N/A
Building Type:
N/A
Submit plans to legalize the list of work done without permit as followings: 1. kitchen remodel with new cabinetry layout 2. relocate the door connect the garage and kitchen 3. remove the dividing wall between kitchen and living room for open kitchen concept. propose structural work for the removal of the wall. 4. renovate both bathrooms for new layout. 5. demolish the non-permitted c... see more
Valuation:
$51,203
Permit #:
BRALT-25-0354
Status:
plancheck
Fee:
$1,196
Permit Type:
Interior remodel
Building Type:
N/A
(e) main residence: 1. convert the (e) bedroom 3 into a new bathroom (bath 3). 2. minor layout adjustment to (e) master bedroom and bedroom 2 as well as (e) bathroom 2. 3. relocate swing door to garage and minor kitchen layout change. 4. infill the step down the family room to level with rest of the house. 5. remove fireplace and chimney at the (e) family room replace with a 5'-0 pati... see more
Valuation:
$130,000
Permit #:
BLD2024-05283
Status:
filed
Fee:
$200
Permit Type:
Addition
Building Type:
N/A
Single family dwelling remodel and addition per plans and calcs. enclose center courtyard (324 sf) for addition. 2187 sf total after construction. 1.kitchen remodel 2.add bedroom 5 and new bathroom 3 3.add laundry closet 4.remodel existing bathrooms and bedrooms 5.add new lighting and outlets throughout 6.add three heat pump mini-splits for heating 7.new 200a electric service panel ne... see more
Valuation:
$168,241
Permit #:
BLD2025-03654
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Completion permit refers to bld2022-03811: to construct a detached accessory dwelling unit (adu) at the rear of the residential property as per plan and calcs (924 sf). 1) the adu will consist of 3 bedroom 2 bathroom kitchen living/dining 2) new 100amp panel and dedicated electrical meter for adu. 3) install new adu furnace and water heater. 4) demolish two unpermitted structures at t... see more
Valuation:
N/A
Permit #:
BLD2025-01612
Status:
complete
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Resubmit plans to complete work of building permit: bld2024-03367 original permit bld2020-01093. construction of one stand-alone two-story building at the east side of the lot. new building provides 3 units at second floor and 2 units on first level with 5 tuck-in parking spaces. re-configure parking lot and landscape area to meet parking space requirements and to provide common open ... see more
Valuation:
$86,607
Permit #:
BLD2025-01737
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Refer to ble2019-00162 and ble2012-00124 to remodel and convert units 21400 and unpermitted 21400a into one unit. interior renovation of the unit with layout changes 1773 sf. 21400- remodel kitchen dining room bathroom #1 pantry hallway and closet. convert den into bathroom #2. convert bedroom #2 to family room convert (e) bedroom to office. unpermitted 21400a - wall removal between k... see more
Valuation:
$203,731
Permit #:
BLD2025-00466
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
To complete work under previous permit bld2022-02290. to construct a new detached adu 420 sf. 1 bedroom 1 bathroom 1 kitchen/living area. - install new 100 amp electrical sub-panel for the new adu. *last inspection completed - foundation under bld2022-02290*
Valuation:
N/A
Permit #:
BLD2024-03738
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant improvement to (e) office/warehouse by building a 2nd level to the open warehouse area w new stair going to the new 2nd fl office/storage area. maintain 15ft from 1st fl finish level to ceiling as required. no exterior work. all foundation/functional work only pertaining to the interior
Valuation:
$500,000
Permit #:
202211106343
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
19 - warehouse fu...
To erect a 1-story type 5a warehouse building w/o basement. the project would include 4 loading docks access from jennings st and 2 loading docks one each access from yesemote ave and wallace ave. ** 6 existing parcels to be merged into one parcel throuth lot line adjustment application **
Valuation:
$500,000
Permit #:
202201035257
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
20 - warehouse, n...
1st floor: in-kind replace all windows. 2nd floor: in-kind replace all windows with except of the bathroom window. convert (e) office into (n) bedroom 3 adjust outlet locations @ bedroom 1 and bedroom 3 addition (n) recessed downlight at bedroom 1 and bedroom 3 extend ducting and air diffuser to bedroom 1. fire zone 2
Valuation:
$50,000
Permit #:
B2024-02097
Status:
plancheck
Fee:
$955
Permit Type:
N/A
Building Type:
N/A
Tenant improvement for origin sushi - new kitchen lineup to include replace the oil fryer replace (4) burner stove with griddle. new refrigerator salad prep table 36"and 48 under counter refrigerators close off the floor sink at the pos addition a new floor sink at the existing prep area. ***field rev 7/23 in flow air duct & air cond pipes*** ref b24-0080 for new grease interceptor
Valuation:
$50,000
Permit #:
B24-0472
Status:
final
Fee:
$3,234
Permit Type:
N/A
Building Type:
N/A
Unit c: for abe compliance program per ordinance 51-16 abe# 201911188334 replace door threshold w/max 1/2 height and 1/4 bevel addition push button to main entrance replace door knob to lever-hdl at entry door side adjust entry landing to 2% max slope
Valuation:
$8,000
Permit #:
202309217087
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
To construct a new detached adu 746 sf as per plans and calcs. 1 bedroom 1 bathroom 1 kitchen/dining area and 1 office room. 1) new heat pump mini-split. new heat pump water heater. 2) new 100 amp electrical service meter for adu. 3) install 100 amp sub-panel at adu
Valuation:
N/A
Permit #:
BLD2024-04614
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Completion permit refers to bld2022-01171: demolish two unpermitted structures adjacent to the existing detached garage and construct a new accessory dwelling unit (adu) attached to the existing garage per plans and calculations: 1) adu to be 800 sf habitable space and to have two bedrooms one bathroom laundry room and kitchen. original valuation $116 336.00 and 10% used = $11 633.60
Valuation:
N/A
Permit #:
BLD2024-04100
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Completion permit for bld2020-01093 & bld2023-02453 & bld2024-00224. 1) to construct a new two-story five-unit apartment complex building (3 730 sf conditioned space) with tuck under garage spaces (960 sf unconditioend space) per plans and calculations. a) unit 101 to have two bedrooms and one bathroom - 787 sf. b) unit 102 to have one bedroom and one bathroom - 674 sf. c) unit 201 to... see more
Valuation:
N/A
Permit #:
BLD2024-03367
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation and addition to the existing house propose 3 stories addition at the back of the existing house: 1200 sf basement level (new) 1275 sf 1st level - expand existing level 1410 sf 2nd level (new) propose new decks cantilever at the second floor above grade decks at the 1st floor and lower level hvac - radiant heat flooring for the entire house heat pump mini-split for the house... see more
Valuation:
N/A
Permit #:
BLD2024-01937
Status:
triage
Fee:
$19,664
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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Projects
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Verified License
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Yao Kun Chen License info
Verified License
| License # | C36094 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for Yao Kun Chen at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 403583 |
| Status | Inactive |
| State | Colorado |
| Type | Architect |
- According to the Colorado Division of Professions and Occupations, 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 Yao Kun Chen at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
106
BuildZoom Score
66
Permits
- Building permit records show that Yao Kun Chen has worked on 66 permitted projects.
Yao Kun Chen Employees
YC
Yao Kun Chen