Updated: Jun 21, 2026
Location and Projects
Address
12899 #B LOCKE ROAD, Lockeford, CA, 95237
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Koyama Ken Architect
Koyama Ken, 12899 B Locke Rd, Lockeford, CA (Employees: Consuelo Jeanette Koyama, Ken Koyama, and Ken Koyama) holds a General Building license and 2 other licenses 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 Koyama Ken, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Koyama Ken Services
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Koyama Ken Contact Information
Phone Number: (213) 503-0216
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Address: 12899 #B LOCKE ROAD, Lockeford, CA 95237
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Koyama Ken Lockeford
Quality
106
93rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Koyama Ken has a BuildZoom score of 106, which places them above 93% of 336,931 contractors in California.
Activity
|
9 projects
|
2025 |
|
3 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Koyama Ken has worked on at least
16.0 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
|
6 projects
|
< $5k |
|
5 projects
|
$5k-$20k |
|
2 projects
|
$100k-$250k |
The typical size of their permits is approximately $3,000. 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.
Replacing windows or siding fire repair other repairs
2025-06-26
Code enforcement case #rhip2010-00021-002. units #70 & #72 (bldg #7) remove and replace balcony post due to existing inverted hanger remove and replace the decking 4x8 rim joist 4x6 post
Valuation:
$8,000
Permit #:
CBRC2025-00086
Status:
issued
Fee:
$520
Permit Type:
N/A
Building Type:
N/A
Replacing windows or siding fire repair other repairs
2025-06-26
Code enforcement case #rhip2010-00021-002. units #55 & #53 (bldg 5) remove and replace balcony post due to existing inverted hanger remove and replace the decking 4x8 rim joist 4x6 post
Valuation:
$8,000
Permit #:
CBRC2025-00085
Status:
issued
Fee:
$520
Permit Type:
N/A
Building Type:
N/A
Replace rotted 2x6 deck planks and (2) 2x8x4 joists due to rot. like for like. *plans subject to field inspection*
Valuation:
$2,500
Permit #:
BP25-03622
Status:
final
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
Replace rotted 2x6 deck planks and (2) 2x8x4 joists due to rot. like for like. *plans subject to field inspection*
Valuation:
$2,500
Permit #:
BP25-03621
Status:
final
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
Replace rotted 2x6 deck planks and (2) 2x8x4 joists due to rot. like for like. *plans subject to field inspection*
Valuation:
$2,500
Permit #:
BP25-03619
Status:
final
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
Replace rotted 2x6 deck planks and (2) 2x8x4 joists due to rot. like for like. *plans subject to field inspection*
Valuation:
$2,500
Permit #:
BP25-03617
Status:
final
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
Non-structural tenant improvement for commercial office. work inlcudes minor interior demolition interior patitions suspend ceilings and millwork. no change in existing use or occupancy
Valuation:
$573,000
Permit #:
20016-10000-03613
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
R&r 4 sq comparable roofing install 2 lvl beams & bracing per plans
Valuation:
$15,000
Permit #:
BP25-01804
Status:
final
Fee:
$663
Permit Type:
N/A
Building Type:
N/A
R&r 4 sq comparable roofing install 2 lvl beams & bracing per plans
Valuation:
$15,000
Permit #:
BP25-01802
Status:
final
Fee:
$663
Permit Type:
N/A
Building Type:
N/A
Supplemental to 20016-10000-03613 following is a brief summary: 1. substitution of panic hardware with magnetic sensor for (1) interior double glass doors per cbc 1010.1.10 exception 2 2. removal of panic hardware at (1) interior glass door with push/pull and no latch 3. substitution of one-hour rated demising wall with non-rated demising wall minor adjustments of non-structural inter... see more
Valuation:
$501
Permit #:
20016-10001-03613
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Replace rotted 2x6 deck planks and (2) 2x8x4 joists due to rot. like for like (plans subject to field inspection)
Valuation:
$2,500
Permit #:
BP25-07153
Status:
final
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
Replace rotted 2x6 deck planks and (2) 2x8x4 joists due to rot. like for like (plans subject to field inspection)
Valuation:
$2,500
Permit #:
BP25-07152
Status:
final
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
Replace rotted 2x6 deck planks and (2) 2x8x4 joists due to rot. like for like (plans subject to field inspection)
Valuation:
$2,500
Permit #:
BP25-07151
Status:
final
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
Supplemental permit to 18016-10001-34308 to addition 15th floor tenant improvement. demolish and new nonbearing partition walls and finishes. (13, 177 sf work area)
Valuation:
$850,000
Permit #:
18016-10001-34308
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Interior tenant improvement to remove existing stair between 14th and 15th floor and close opening to match existing conditions. disabled accesibility upgrade on 15th floor restroom. 14th floor restroom upgrade for disable accesiblity is under the permit #19016-10000-00133. area of scope will be limited to 480 sf around stair
Valuation:
$50,000
Permit #:
18016-10000-34308
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Repair to damaged framing and stucco due to tree fall on roof
Valuation:
$15,000
Permit #:
BP25-06490
Status:
final
Fee:
$663
Permit Type:
N/A
Building Type:
N/A
Code enf:dry rot repair to staircase leading to unit 22. *plans subject to field inpection*
Valuation:
$3,500
Permit #:
BP24-06590
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Code enf:dry rot repair to staircase leading to unit 22. *plans subject to field inpection*
Valuation:
$3,500
Permit #:
BP24-06589
Status:
final
Fee:
$213
Permit Type:
N/A
Building Type:
N/A
Remove and replace damage stucco on wall (of south facing wall)
Valuation:
$3,000
Permit #:
BP25-05407
Status:
final
Fee:
$212
Permit Type:
N/A
Building Type:
N/A
Multi family - water damage drywall repair - replace 36sq closet entry/foyer tub
Valuation:
$600
Permit #:
24-11-156E
Status:
expired
Fee:
$84
Permit Type:
N/A
Building Type:
Multi family
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Koyama Ken License info
Verified License
| License # | 809776 |
| Status | Active |
| State | California |
| Type | General Building |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Koyama Ken at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | C27932 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom verified this license was active as of August 2025.
Verify this license's status for Koyama Ken at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 948083 |
| Status | Inactive |
| State | California |
| Type | General Building |
- 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 Koyama Ken at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
106
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | Palomar Specialty Insurance Company |
42
Permits
- Building permit records show that Koyama Ken has worked on 42 permitted projects.
Koyama Ken Employees
CK
Consuelo Jeanette Koyama
Officer
KK
Ken Koyama
Sole Owner
KK
Ken Koyama
Sole Owner
KK
Koyama Ken
Owner
RK
Richard Dale Koyama
Sole Owner