Updated: Mar 14, 2026
Location and Projects
Address
3360 SANSONE COURT, Santa Rosa, CA, 95403
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Cohan Structures Construction
Serving Santa Rosa and surrounding communities, Cohan Structures specializes in residential and commercial construction projects. With four years of experience in the industry, the company handles a range of building needs, from new home construction to remodeling and structural repairs. Cohan Structures works with both homeowners and business owners, addressing projects that include home additions, kitchen and bathroom remodels, and seismic retrofitting. The company manages projects throughout Sonoma County, offering expertise in both wood framing and concrete work. Cohan Structures emphasizes clear project planning and precise execution in all phases, from permitting and design collaboration to final build-out.
Cohan Structures Services
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Cohan Structures Contact Information
Phone Number: (707) 889-6468
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Address: 3360 SANSONE COURT, Santa Rosa, CA 95403
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Cohan Structures Santa Rosa
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cohan Structures has a BuildZoom score of 108, which places them above 95% of 336,931 contractors in California.
Activity
|
11 projects
|
2025 |
|
12 projects
|
2024 |
|
6 projects
|
2023 |
Our building permit records indicate that Cohan Structures has worked on at least
29.0 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
|
15 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Cohan Structures mostly works on
new construction
projects.
Pricing
|
3 projects
|
< $5k |
|
1 project
|
$50k-$100k |
|
6 projects
|
$100k-$250k |
|
5 projects
|
$250k-$500k |
The typical size of their permits is approximately $158,712. 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.
Scope of work: demolish shed & construct new 1-sty detached 958 sqft adu 1. demolish shed (no permit history for demolition shed found) 2. construct new 1-story detached 958 sqft total adu w deck -894 sqft adu (conditioned space) to include: (2) bedrooms (2) bathrooms kitchen/living w/d -64 sqft (unconditoned space) new heat pump water heater shed 3. addition new 150a sub-panel new ai... see more
Valuation:
$158,712
Permit #:
2025 097467 RS
Status:
issued
Fee:
$3,318
Permit Type:
2nd unit added
Building Type:
N/A
Scope of work: demolish shed & construct new 1-sty detached 958 sqft adu 1. demolish shed (no permit history for demolition shed found) 2. construct new 1-story detached 958 sqft total adu w deck -894 sqft adu (conditioned space) to include: (2) bedrooms (2) bathrooms kitchen/living w/d -64 sqft (unconditoned space) new heat pump water heater shed 3. addition new 150a sub-panel new ai... see more
Valuation:
$158,712
Permit #:
2025 097467 RS
Status:
issued
Fee:
$3,318
Permit Type:
2nd unit added
Building Type:
N/A
Construct a new detached adu 495 sf 1 bed/1 bathroom. no fire sprinklers. main dwelling address is 5660 monte verde dr and adu is 5662 monte verde dr
Valuation:
$305,381
Permit #:
B24-2845
Status:
final
Fee:
$5,464
Permit Type:
N/A
Building Type:
N/A
Construct new detached 740 sf adu in back on main residence. creating 2bed/2bath unit
Valuation:
$431,258
Permit #:
BLD2024-06940
Status:
approved - pending plans/docs
Fee:
$6,316
Permit Type:
New accessory dwe...
Building Type:
N/A
Proposed construction of 600 sf new detached adu
Valuation:
$333,200
Permit #:
B2024-00955
Status:
plancheck
Fee:
$6,218
Permit Type:
N/A
Building Type:
N/A
Proposed construction of new detached 299sf backyard adu
Valuation:
$244,435
Permit #:
B2024-05755
Status:
plancheck
Fee:
$4,910
Permit Type:
N/A
Building Type:
N/A
Detached a d u
Valuation:
$299,000
Permit #:
178290
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Construction of new detached 495 sf adu
Valuation:
$283,703
Permit #:
B2023-05794
Status:
issued
Fee:
$5,675
Permit Type:
N/A
Building Type:
N/A
Construct new detached adu
Valuation:
$175,422
Permit #:
B2024-04293
Status:
plancheck
Fee:
$3,815
Permit Type:
N/A
Building Type:
N/A
Construct detached backyard adu. existing garage demolition b2025-04713
Valuation:
$228,908
Permit #:
B2025-03880
Status:
approved
Fee:
$17,323
Permit Type:
N/A
Building Type:
N/A
3rd party requested - new detached adu 451sf
Valuation:
N/A
Permit #:
BLD25-2918
Status:
issued
Fee:
$3,724
Permit Type:
N/A
Building Type:
N/A
Proposed construction of 395sf adu
Valuation:
N/A
Permit #:
B2025-0042
Status:
issued
Fee:
$10,607
Permit Type:
Adu-detached
Building Type:
N/A
Install a retail wall sign and blade sign under an approved master tenant signage program
Valuation:
$4,000
Permit #:
B2023-03058
Status:
approved
Fee:
$573
Permit Type:
N/A
Building Type:
N/A
Proposed construction of 120sf accessory structure with electricity
Valuation:
$50,000
Permit #:
B2024-01420
Status:
canceled
Fee:
$1,070
Permit Type:
N/A
Building Type:
N/A
Proposed construction of 120sf accessory structure with electricity
Valuation:
$50,000
Permit #:
B2024-01535
Status:
issued
Fee:
$1,070
Permit Type:
N/A
Building Type:
N/A
Ammr submitted in associated with detached adu application bld2024-06940: masaya's structural glue laminated product are still awaiting full ias accreditation. many of the requirements of ansi190 and astmd3737 have been met. testing has been performed per the referenced standards. the use of glue laminated products with appropriate allowable values is being proposed
Valuation:
N/A
Permit #:
AMR2025-00001
Status:
issued
Fee:
$1,235
Permit Type:
N/A
Building Type:
N/A
120sf accessory structure with electricity
Valuation:
$50,000
Permit #:
B2024-01418
Status:
canceled
Fee:
$1,070
Permit Type:
N/A
Building Type:
N/A
Proposed construction of 350sf adu
Valuation:
N/A
Permit #:
B2305-041
Status:
final
Fee:
N/A
Permit Type:
New adu unit
Building Type:
N/A
Temporary improvements to patio with no plumbing or electrical installations or changes
Valuation:
$2,000
Permit #:
B2023-00877
Status:
plancheck
Fee:
$325
Permit Type:
N/A
Building Type:
N/A
Main electrical panel upgrade
Valuation:
$4,875
Permit #:
B2023-00837
Status:
issued
Fee:
$127
Permit Type:
N/A
Building Type:
N/A
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Cohan Structures Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Cohan Structures License info
Verified License
| License # | 1075634 |
| 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 Cohan Structures at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Pie Insurance Company (The) |
26
Permits
- Building permit records show that Cohan Structures has worked on 26 permitted projects.
Cohan Structures Employees
OC
Olin Kenneth Cohan
Sole Owner