Updated: Jul 03, 2026
Location and Projects
Address
1550 AIRPORT BLVD #104, Santa Rosa, CA, 95403
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Koch Construction Company Inc
Based in Santa Rosa, Koch Construction Company Inc has specialized in building projects throughout Sonoma County for over three decades. The company handles a range of construction services, including new home construction, residential remodels, home additions, and light commercial projects. Koch Construction Company Inc’s experience extends to both interior and exterior improvements, as well as specialized structural work such as foundations and framing. The company serves property owners in Santa Rosa and surrounding communities within Sonoma County, adapting to different architectural styles and client requirements. With 30 years in the construction trade, Koch Construction Company Inc draws on longstanding knowledge of local building practices, regional conditions, and permitting processes, supporting projects from initial concept through completion for homeowners and small business clients.
Koch Construction Company Inc Services
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Koch Construction Company Inc Contact Information
Phone Number: (707) 575-5608
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Address: 1550 AIRPORT BLVD #104, Santa Rosa, CA 95403
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Koch Construction Company Inc Santa Rosa
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Koch Construction Company Inc has a BuildZoom score of 103, which places them above 90% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
3 projects
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that Koch Construction Company Inc has worked on at least
7.0 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 Koch Construction Company Inc mostly works on
new construction
projects.
Pricing
|
2 projects
|
$100k-$250k |
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 Koch Construction Company Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Divide building into 2 suites. space for unit b is for tenant improvement for ringtime fitness 3, 070 sq. ft. net. unit a is 5, 216 sq. ft. net. work on unit a is for landlord improvements and does not allow occupancy a separate permit will be required for the tenant in unit a. zc22-0327 is for ringtime fitness 5/9/23 approved revision to sheet c-3. walkway lengthened. mwe
Valuation:
$150,000
Permit #:
B22-6578
Status:
final
Fee:
$12,637
Permit Type:
N/A
Building Type:
N/A
Replacement of water heater addition of air/vacuum lines medgas lines. addition and removal of existing sinks
Valuation:
N/A
Permit #:
B25-3850
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition of sub panel. placement of power supply for equipment updated outlets/lights
Valuation:
N/A
Permit #:
B25-3849
Status:
withdrawn
Fee:
$107
Permit Type:
N/A
Building Type:
N/A
Evt20-00609 demolition of 732(sf) single family dwelling 72(sf) deck destroyed by the 2020 glass fire
Valuation:
N/A
Permit #:
DEM24-0368
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sonoma indian health project server room expansion: interior work only remove one wall move air conditioning unit new electrical ada truncated domes at entry
Valuation:
$21,000
Permit #:
B16-5950
Status:
final
Fee:
$1,873
Permit Type:
N/A
Building Type:
N/A
3/8/22 temp occ requested a new 2 200 s.f. garage with a 975 s.f. loft. pre-fabricated metal shell on a concrete slab
Valuation:
N/A
Permit #:
BLD20-8569
Status:
issued
Fee:
$4,647
Permit Type:
N/A
Building Type:
N/A
2019 kincade fire - replacement detached 580 sqft garage w 370 sqft attached shop (on existing foundation) - evt19-02635
Valuation:
N/A
Permit #:
BLD20-4481
Status:
final
Fee:
$1,764
Permit Type:
N/A
Building Type:
N/A
Electrical panel location revised added sub panel mts revised lighting
Valuation:
N/A
Permit #:
BLD24-1480.R01
Status:
complete
Fee:
$101
Permit Type:
N/A
Building Type:
N/A
Renew pc bld15-6736 new landscaping & parking lot
Valuation:
N/A
Permit #:
BLD17-1969
Status:
final
Fee:
$1,250
Permit Type:
N/A
Building Type:
N/A
Toothmate tenant improvement. tenant improvement to convert an existing outpatient doctor's office into a dental office. scope of work includes removal of non-structural non-seismic walls removal of built-in casework addition of dental chairs with medical gas and electrical connectivity plumbing to new sinks in exam rooms new med gas service addition windows in existing exam room door... see more
Valuation:
$197,000
Permit #:
B25-3847
Status:
issued
Fee:
$15,493
Permit Type:
N/A
Building Type:
N/A
2017 complex fire 3630 sf single family dwelling 898 sf garage 1311 sf porch evt17-04258
Valuation:
N/A
Permit #:
BLD19-2962
Status:
final
Fee:
$10,128
Permit Type:
N/A
Building Type:
N/A
Evt20-00609 1180(sf) 2-story single family dwelling 1180(sf) attached garage 370(sf) deck 2020 glass fire
Valuation:
N/A
Permit #:
BLD24-2709
Status:
canceled
Fee:
$1,885
Permit Type:
N/A
Building Type:
N/A
New barrel storage building 7806 sq ft - temp occupancy applied for today
Valuation:
N/A
Permit #:
BLD17-5552
Status:
final
Fee:
$4,405
Permit Type:
N/A
Building Type:
N/A
Construct new cmu walls with areas for condenser generator and pg&e transformer - approx 883 sq ft
Valuation:
N/A
Permit #:
BLD18-0429
Status:
expired
Fee:
$1,859
Permit Type:
N/A
Building Type:
N/A
2017 complex fire commercial ag barn replacement evt17-05191
Valuation:
N/A
Permit #:
BLD18-6757
Status:
final
Fee:
$2,781
Permit Type:
N/A
Building Type:
N/A
Tenant improvement for goodwill store-minor demolish new lighting flooring and painting
Valuation:
$96,500
Permit #:
BLDG-18-0020
Status:
complete
Fee:
$3,994
Permit Type:
N/A
Building Type:
N/A
2019 kincade fire - barn 2, 464 sq - evt19-02097
Valuation:
N/A
Permit #:
BLD21-7519
Status:
final
Fee:
$3,353
Permit Type:
N/A
Building Type:
N/A
Demolish existing retail to get ready for new tenant improvement for goodwill store under permit bldg-18-0020
Valuation:
$23,500
Permit #:
BLDG-18-0034
Status:
complete
Fee:
$792
Permit Type:
N/A
Building Type:
N/A
Detached two car garage (576sf)
Valuation:
N/A
Permit #:
BLD21-8112
Status:
final
Fee:
$1,623
Permit Type:
N/A
Building Type:
N/A
Evt20-00623 detached replacement garage manufactured metal building 2020 glass fire
Valuation:
N/A
Permit #:
BLD24-1480
Status:
issued
Fee:
$3,038
Permit Type:
N/A
Building Type:
N/A
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Koch Construction Company Inc License info
Verified License
| License # | 724643 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Koch Construction Company Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 329495 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Koch Construction Company Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 550883 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- 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 Koch Construction Company Inc 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 | Western Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
112
Permits
- Building permit records show that Koch Construction Company Inc has worked on 112 permitted projects.
Koch Construction Company Inc Employees
DK
David Alfred Koch
Sole Owner
JK
Joy Lisbeth Zamoyski Koch
Officer
JK
Joy-Lisbeth Zamoyski Koch
Officer
KC
Koch Const Company
Entity
RS
Rimar Construction Systems
Entity