Updated: May 14, 2026
Location and Projects
Address
23682 BIRTCHER DRIVE, Lake Forest, CA, 92630
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K PATRICK WILLIAMS COMPANY Construction
Since 1985, K Patrick Williams Company has served clients in Lake Forest, California, and the surrounding areas. Specializing in general contracting, the company manages a range of construction and remodeling projects for residential and commercial properties. Project types featured in their portfolio include home additions, kitchen remodels, bathroom renovations, and tenant improvements. K Patrick Williams Company works directly with property owners and developers to deliver both new construction and major renovation projects. The firm is led by its namesake principal, who remains actively involved in overseeing job sites and project management. Whether upgrading a single-family residence or renovating a commercial space, the company draws on decades of experience to coordinate resource planning, permitting, and quality construction methods throughout each phase of a project.
K PATRICK WILLIAMS COMPANY Services
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K PATRICK WILLIAMS COMPANY Contact Information
Phone Number: (909) 683-0850
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Address: 23682 BIRTCHER DRIVE, Lake Forest, CA 92630
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K PATRICK WILLIAMS COMPANY Lake Forest
Quality
104
91st percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
K PATRICK WILLIAMS COMPANY has a BuildZoom score of 104, which places them above 91% of 336,931 contractors in California.
Activity
|
3 projects
|
2025 |
|
1 project
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that K PATRICK WILLIAMS COMPANY has worked on at least
8.0 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
|
5 projects
|
Commercial Renovations |
Analyzing permits over the last 4 years shows that K PATRICK WILLIAMS COMPANY mostly works on
commercial renovation
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
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.
Building Permits by K PATRICK WILLIAMS COMPANY
This is a sample of this contractor's permits. Click here to access their complete permit history.
Residential alteration or addition - plan check-permit
2025-05-21
Cross street: via viejas description of work:hra (online permit) windows and/or sliding glass door replacements with the same net openable area. (replacement windows must meet state of california energy code requirements for u-factor and shgc for package d of the applicable climate zone (see pds #409). also per county building code 704a.3.2.2; windows shall be dual-glazed with a minim... see more
Valuation:
N/A
Permit #:
PDS2025-RESALT-003843
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant improvement - interior remodel to existing retail space new int. non bearing partitions new ceilings electrical mechanical and plumbing improvements ada compliant bathroom change of use from (m) to (b)
Valuation:
$175,000
Permit #:
BLD23-0162
Status:
issued
Fee:
$5,656
Permit Type:
N/A
Building Type:
N/A
New photovoltaic/solar installation (residential)
2025-08-27
Roof mounted photovoltaic system w/125a/80a subpanel & ess
Valuation:
$1,000
Permit #:
ELER25-00464
Status:
final
Fee:
$716
Permit Type:
N/A
Building Type:
N/A
Eplan. full pc for first time tenant. scope of work includes 2 new panels 45kva transformer and circuits. installing indoor lighting and controls. total energy affected area:1864 sq. ft
Valuation:
N/A
Permit #:
22041-10000-38989
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Change of use from garment manufacturing to packaging and distribution area and tenant improvement. the hours of operation will be from 7:00 am and 11:00 pm
Valuation:
$60,000
Permit #:
24016-10000-33307
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement
Valuation:
$335,265
Permit #:
00899013-SBPT
Status:
final
Fee:
$1,217
Permit Type:
N/A
Building Type:
N/A
Ten. imp yoga six - interior remodel of an existing space interior walls ceilings ada restrooms finishes and millwork. mechanical electrical and plumbing work
Valuation:
N/A
Permit #:
PLM23-00445
Status:
final
Fee:
$490
Permit Type:
N/A
Building Type:
N/A
Ten. imp yoga six - interior remodel of an existing space interior walls ceilings ada restrooms finishes and millwork. mechanical electrical and plumbing work
Valuation:
N/A
Permit #:
MEC23-00476
Status:
final
Fee:
$440
Permit Type:
N/A
Building Type:
N/A
Ten. imp yoga six - interior remodel of an existing space interior walls ceilings ada restrooms finishes and millwork. mechanical electrical and plumbing work
Valuation:
N/A
Permit #:
ELE23-01080
Status:
final
Fee:
$845
Permit Type:
N/A
Building Type:
N/A
Ten. imp yoga six - interior remodel of an existing space interior walls ceilings ada restrooms finishes and millwork. mechanical electrical and plumbing work
Valuation:
N/A
Permit #:
BLD23-01307
Status:
final
Fee:
$11,949
Permit Type:
N/A
Building Type:
N/A
Change use from retail to fitness center with addition of 10 x 3'7 metal trellis at store front and installation of steel ceiling frame wall frame and masonry wall at rear half of tenant area. all works are per engineering
Valuation:
$300,000
Permit #:
19016-20000-16753
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Mechanical tenant improvement. work includes addition of condensing unit and enviromental exhausts fans
Valuation:
N/A
Permit #:
22044-20000-09555
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Tenant improvement - club pilates - revision to approved plans
Valuation:
$175,000
Permit #:
ELE23-0100
Status:
issued
Fee:
$1,638
Permit Type:
N/A
Building Type:
N/A
Ti: potable water hot and cold water waste and vent and low pressure gas system
Valuation:
N/A
Permit #:
22042-20000-16645
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental to 21041-10000-15250 request address change. from 12265 w ventura blvd to 12265 w ventura blvd #103 & 104 and extra trip fee (inspector)
Valuation:
N/A
Permit #:
21041-10001-15250
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Plan check for t-24 only for a tenant improvement. scope of work includes lighting and controls. total affected area: 1730 sq ft
Valuation:
N/A
Permit #:
21041-10000-15250
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Supplemental permit to existing 21042-90000-34679. need to addition 1-washer original 1-expansion tank 1-eartquake valve
Valuation:
N/A
Permit #:
21042-90000-47933
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Remove and replace (19) existing light fixtures like for like
Valuation:
$20,000
Permit #:
PMT22-10797
Status:
issued
Fee:
$415
Permit Type:
Commercial electr...
Building Type:
N/A
Power lighting and distribution for change of use from retail to fitness center. plan check for power and energy. building #19016-20000-16753
Valuation:
N/A
Permit #:
19041-20000-21181
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Yoga six - construct trash enclosure with solid roof cover
Valuation:
N/A
Permit #:
BLD24-00507
Status:
triage
Fee:
$621
Permit Type:
N/A
Building Type:
N/A
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K PATRICK WILLIAMS COMPANY Reviews
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K PATRICK WILLIAMS COMPANY License info
Verified License
| License # | 360147 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for K PATRICK WILLIAMS COMPANY at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 583614 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- 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 K PATRICK WILLIAMS COMPANY at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
62
Permits
- Building permit records show that K PATRICK WILLIAMS COMPANY has worked on 62 permitted projects.
K PATRICK WILLIAMS COMPANY Employees
PW
Patrick J Williams
Sole Owner
PW
Patrick Wayne Williams
Sole Owner