Updated: Dec 08, 2025
Location and Projects
Address
Tualatin, OR, 97062
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Cowan Construction Site Work Contractor
Cowan Construction LLC, (Employees: Cowan & Cowan Constructin Inc, Cowan, Kelly Marshall, and Cowan, Michael L) holds a license according to the Oregon license board.
Their BuildZoom score of 109 ranks in the top 5% of 62,733 Oregon licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cowan Construction LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Cowan Construction LLC Services
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Cowan Construction LLC Contact Information
Phone Number: (503) 277-0490
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Cowan Construction LLC
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cowan Construction LLC has a BuildZoom score of 109, which places them above 95% of 62,733 contractors in Oregon.
Activity
|
2 projects
|
2025 |
|
3 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Cowan Construction LLC has worked on at least
9.0 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 Cowan Construction LLC mostly works on
new construction
projects.
Pricing
|
2 projects
|
$20k-$50k |
|
1 project
|
$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 Cowan Construction LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Nsfr - with 132 sq ft covered patio and 177 sq ft garden wall. 403 sq ft existing carport and 242 sq ft boat storage to remain. this permit replaces the remodel and addition permit 499-21-001576-str. the house was torn down and now has to be replaced
Valuation:
$1,200,000
Permit #:
499-21-004753-DWL
Status:
issued
Fee:
$11,590
Permit Type:
New
Building Type:
N/A
Building a new single family home
Valuation:
N/A
Permit #:
B0563925
Status:
issued
Fee:
$25,159
Permit Type:
N/A
Building Type:
N/A
48x38 horse barn for personal use - construction new barn for horses (not yet owned) and alpaca. barn will be comprised of 4 stalls a tack room feed room wash rack and a free bay for storage
Valuation:
$200,000
Permit #:
B0066323
Status:
final
Fee:
$2,384
Permit Type:
N/A
Building Type:
N/A
Single pdf - revision to structural steel baseplate that was attached to the concrete stem wall using structural anchors. off the baseplate the newel posts for the railing was to be welded. the metal railing contractor asked if we could use a different method that would core into the concrete stem wall and set the metal newel posts with structural non-shrink grout. the engineer made c... see more
Valuation:
N/A
Permit #:
2023-080196-REV-01-RS
Status:
filed
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Building - residential accessory structure
2023-07-25
Epr construction of detached 795 sf pool house with 702 sf attached patio cover guest house excercise room and dressing room with powder room - outdoor kitchen - separate entrance for each space
Valuation:
$250,000
Permit #:
B0211821
Status:
expired
Fee:
$2,804
Permit Type:
N/A
Building Type:
N/A
Single pdf - revision to change from designed steel canopy and replace with an extended eaves****this will eliminate the requirement for special inspections for steel and welding****
Valuation:
N/A
Permit #:
2020-195389-REV-02-RS
Status:
filed
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family res...
Construction of new detached two car garage to be located along existing driveway
Valuation:
$50,000
Permit #:
B0595722
Status:
expired
Fee:
$1,149
Permit Type:
N/A
Building Type:
N/A
Enclose existing cover porch to addition laundry and pantry; reconfigure kitchen walls; reconfigure walls in existing master bedroom to relocate bathroom and walk in closet; reconfigure bedroom and bathroom walls***electrical mechanical and plumbing to be obtained separately***
Valuation:
N/A
Permit #:
2018-255207-000-00-RS
Status:
final
Fee:
N/A
Permit Type:
Addition
Building Type:
Real prop mfg'd home
Grading for new single family residence
Valuation:
N/A
Permit #:
G0003124
Status:
issued
Fee:
$1,607
Permit Type:
N/A
Building Type:
N/A
Alder circle and south shore blvd; maintenance of existing non-conforming carport (posts and knee braces) and new roof deck structure
Valuation:
$30,000
Permit #:
499-23-002470-STR
Status:
issued
Fee:
$799
Permit Type:
Alteration
Building Type:
N/A
Single pdf - revision to change the hold down detail at northwest corner of primary building from a welded connection to an epoxied anchor
Valuation:
N/A
Permit #:
2020-195389-REV-03-RS
Status:
issued
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
Replacement dwelling
Valuation:
$1,200,000
Permit #:
979-20-004048-DWL
Status:
issued
Fee:
$9,392
Permit Type:
New
Building Type:
N/A
New single family residence - demolish applies
Valuation:
$800,000
Permit #:
20111088
Status:
final
Fee:
$14,485
Permit Type:
N/A
Building Type:
N/A
Whole house remodel; main floor - enclose breezeway to create entry reconfigure master bedroom closet, and bathroom walls remove 1 bathroom reconfigure stairs to basement;convert bedroom to office remodel kitchen and reduce deck size; replace windows; new walls in basement for 3 bedrooms bathroom pool room and 2 storage rooms; furr out walls.***mech electrical plumbing permits to be o... see more
Valuation:
N/A
Permit #:
2017-275052-000-00-RS
Status:
final
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family res...
Demolition of existing single family home
Valuation:
N/A
Permit #:
B1708324
Status:
issued
Fee:
$85
Permit Type:
N/A
Building Type:
N/A
Single pdf - revision to increas the development area size and use alternate trees to meet preservation requirements in the development area
Valuation:
N/A
Permit #:
2020-195389-REV-01-RS
Status:
filed
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family res...
Sb871 - deconstruct single family resdience retain basement for future residence - cap sewer - remove all debris *** subject to 35 day delay ***demolition delay 35-day appeal period until 4:30 pm monday may 6 2019.***
Valuation:
N/A
Permit #:
2019-141055-000-00-RS
Status:
final
Fee:
N/A
Permit Type:
Demolition
Building Type:
Single family res...
Basement renovation - west half of floor - to include new bathroom and dining room with wet bar; new elevator. ***mechanical electrical and plumbing permits to be obtained separately****5 toilets total
Valuation:
N/A
Permit #:
2018-136038-000-00-RS
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
Single family res...
Single pdf - dfs for extending fire sprinkler system into new addition
Valuation:
N/A
Permit #:
2021-076944-DFS-01-RS
Status:
filed
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family res...
Single pdf - addition and conversion of existing detached garage - recreation room and storage *** all trade permits to be obtained separately***
Valuation:
N/A
Permit #:
2020-191848-000-00-RS
Status:
filed
Fee:
N/A
Permit Type:
Addition
Building Type:
Single family res...
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Cowan Construction LLC License info
Verified License
| License # | 154602 |
| Status | Active |
| State | Oregon |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Cowan Construction LLC at the Oregon Construction Contractors Board (CCB).
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| State | Oregon |
| Business Type | Limited Liability Company |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Cowan Construction LLC with the Oregon Construction Contractors Board (CCB)
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 210551 |
| Status | Inactive |
| State | Oregon |
| Business Type | Limited Liability Company |
- According to the Oregon Construction Contractors Board (CCB), 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 Cowan Construction LLC at the Oregon Construction Contractors Board (CCB).
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 186270 |
| Status | Inactive |
| State | Oregon |
| Business Type | Limited Liability Company |
- According to the Oregon Construction Contractors Board (CCB), 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 Cowan Construction LLC at the Oregon Construction Contractors Board (CCB).
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
Insured
| Insurer | United Fire & Casualty Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Rli Insurance Company |
| Bond Value | $20,000 |
Insured
| Workers Comp Provider | Saif |
53
Permits
- Building permit records show that Cowan Construction LLC has worked on 53 permitted projects.
Cowan Construction LLC Employees
CI
Cowan & Cowan Constructin Inc
CM
Cowan, Kelly Marshall
Cowan, Kelly Marshall
CL
Cowan, Michael L
Rmi Owner
CL
Cowan, Michael Lee
Does absolutely wonderful work and was a pleasure to work with!