Updated: Jun 30, 2026
Location and Projects
Address
525 3rd St, Lake Oswego, OR, 97034
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Mainstreet Design and Build LLC Photos
Mainstreet Design and Build Construction
House Remodeling Contractor Portland, Main Street Design & Build
General Contractor Serving Portland,Oregon
From BuildZoom: Mainstreet Design and Build LLC, 525 3rd St, Lake Oswego, OR holds a General Contractor license and 1 other license according to the Washington license board.
Their BuildZoom score of 103 ranks in the top 10% of 62,733 Oregon licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Mainstreet Design and Build LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Mainstreet Design and Build LLC Services
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Mainstreet Design and Build LLC Contact Information
Phone Number: (503) 720-0555
Address: 525 3rd St, Lake Oswego, OR 97034
Mainstreet Design and Build LLC Lake Oswego
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mainstreet Design and Build LLC has a BuildZoom score of 103, which places them above 90% of 62,733 contractors in Oregon.
Activity
|
2 projects
|
2025 |
Our building permit records indicate that Mainstreet Design and Build LLC has worked on at least
2.0 projects over the past year.
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
|
1 project
|
< $5k |
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.
Mainstreet Design and Build LLC Reviews
5 out of 5 stars, based on
1
review
-
By Carly R.October 14, 2024Bathroom remodel$11,000
Building Permits by Mainstreet Design and Build LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Change of use from single family dwelling to adu
Valuation:
N/A
Permit #:
192-25-000738-STR
Status:
issued
Fee:
$601
Permit Type:
Other
Building Type:
N/A
Replacement mh
Valuation:
N/A
Permit #:
192-25-000739-MD
Status:
issued
Fee:
$8,391
Permit Type:
Replacement
Building Type:
N/A
Replacing 2 shower pans
Valuation:
$750
Permit #:
935-25-000981-PLM
Status:
issued
Fee:
$197
Permit Type:
Replacement
Building Type:
N/A
Hiring a contractor?
Verified License
BuildZoom confirmed this contractor's license
Mainstreet Design and Build LLC License info
Verified License
| License # | MAINSDB777R9 |
| Status | Active |
| State | Washington |
| Type | General Contractor |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Mainstreet Design and Build LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 238106 |
| Status | Active |
| State | Oregon |
| Business Type | Limited Liability Company (Llc) |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Mainstreet Design and Build LLC at the Oregon Construction Contractors Board (CCB).
This is a sample of licensing data; click here to access a complete history.
Excellent work and excellent communication. Competitive rates. Family business, very personal. Looking forward to our next job together!