Updated: Apr 11, 2026
Location and Projects
Address
20400 NE 164TH ST, Brush Prairie, WA, 98606
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Karlsen Brothers Construction
Serving Brush Prairie, Washington and surrounding areas, Karlsen Brothers LLC specializes in custom home building and residential construction. The company delivers a range of services including constructing new homes, home additions, and remodels for homeowners looking to enhance or expand their living space. Project types featured in their portfolio include fully custom single-family residences, with examples highlighting open-concept layouts, detailed millwork, and integrated outdoor living spaces. Karlsen Brothers LLC manages projects from initial design consultation through completion, working closely with clients to address site-specific considerations and functional requirements. Founded nine years ago, the company draws on local industry experience to navigate permitting, site preparation, and material selection suited to the Pacific Northwest climate. Projects frequently incorporate energy-efficient building methods and emphasize blending new structures with the regional landscape.
Karlsen Brothers LLC Services
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Karlsen Brothers LLC Contact Information
Phone Number: (360) 606-6931
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Address: 20400 NE 164TH ST, Brush Prairie, WA 98606
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Karlsen Brothers LLC Brush Prairie
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Karlsen Brothers LLC has a BuildZoom score of 108, which places them above 95% of 128,670 contractors in Washington.
Activity
|
6 projects
|
2025 |
|
4 projects
|
2024 |
|
11 projects
|
2023 |
Our building permit records indicate that Karlsen Brothers LLC has worked on at least
21.0 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
|
18 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Karlsen Brothers LLC mostly works on
new construction
projects.
Pricing
|
1 project
|
$100k-$250k |
|
14 projects
|
$250k-$500k |
|
2 projects
|
$500k-$1mil |
The typical size of their permits is approximately $400,000. 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.
3-bdrm single family dwelling with attached garage
Valuation:
$420,000
Permit #:
25-06-3126
Status:
issued
Fee:
$5,483
Permit Type:
N/A
Building Type:
N/A
New wood framed home on concrete foundation all details of home designed and stamped by architectural engineer and plot plan prepared. original mobile home has been removed and new home will take the place of old home
Valuation:
$300,000
Permit #:
NHC-2024-00293
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
50 x 36 4 bedroom 3 1/2 bathroom with den and 2 car garage house - 2054 sq.ft garage - 399 sq.ft entry - 181 sq.ft new nhc will be going in same footprint of home built in 1926-1945 demolish for existing home is dem-2021-00140
Valuation:
$475,000
Permit #:
NHC-2021-01767
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
36'x38 2 bedrooms 3 baths den sitting rooms 2 car garage house - 2002 sq.ft garage - 393 sq.ft deck - 95 sq.ft entry - 80 sq.ft eng-2022-00355
Valuation:
$350,000
Permit #:
NHC-2023-00248
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
New single family residence. 2548 sq ft home finished 722 sq ft garage unfinished 102 covered porch unfinished 194 sq ft patio unfinished
Valuation:
$400,000
Permit #:
NHC-2023-00797
Status:
canceled
Fee:
$18,508
Permit Type:
New home construc...
Building Type:
N/A
We are proposing a 2 hour fire wall per detail ga file no. wp 4230 on page a4 of the architectural plan. there will be fire rated apa plywood 4'-0 in both directions of the fire wall with no penetrations in that roof portion or through the wall. the mandoor will be a 90 minute fire rated door
Valuation:
N/A
Permit #:
FMI-2025-00125
Status:
complete
Fee:
N/A
Permit Type:
Other
Building Type:
N/A
3 bedroom single family dwelling w attached garage
Valuation:
$395,000
Permit #:
23-09-4620
Status:
final
Fee:
$4,981
Permit Type:
N/A
Building Type:
N/A
60 x 59 (3) 1st floor bedrooms (1) 2nd floor bonus/bedroom (3) bathrooms and 2 car garage house - 2667 sq.ft garage - 531 sq.ft patio - 280 sq.ft entry - 107 sq.ft
Valuation:
$500,000
Permit #:
NHC-2021-01305
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
Finished home: 4051 sq ft garage: 845 sq ft covered entry: 221 sq ft covered patio: 337
Valuation:
$450,000
Permit #:
NHC-2024-00238
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
New single family residence 1-story with attached 3-car garage/shop and unfinished attic storage area over garage. revised 6-14-2021 mm
Valuation:
$300,000
Permit #:
NHC-2020-02338
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
Finished home 2574 sq ft unfinished garage 672 sq ft unfinished covered patio 206 sq ft unfinished porch 90 sq ft replaces nhc-2023-00797
Valuation:
$334,620
Permit #:
NHC-2023-01153
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
Construct one new single family home to replace existing mobile. to be lived in until completion of the home
Valuation:
$398,000
Permit #:
NHC-2021-00346
Status:
complete
Fee:
$296
Permit Type:
New home construc...
Building Type:
N/A
88'9 x 28'9 3 bedroom 3 bathroom home with bonus and 3 car garage house - 3559 sq.ft garage - 1018 sq.ft patio - 414 sq.ft entry - 123 sq.ft
Valuation:
$550,000
Permit #:
NHC-2021-02287
Status:
triage
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
Prescriptive path: 40 x 62 3 bedroom 2 bathroom with 2 car garage house - 1918 sq.ft garage - 432 sq.ft patio - 104 sq.ft entry - 34 sq.ft
Valuation:
$300,000
Permit #:
NHC-2021-01146
Status:
issued
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
97 x 38 3 bedroom 2 1/2 bathroom home with office and 2 car garage house - 2774 sq.ft garage - 806 sq.ft patio - 360 sq.ft entry - 180 sq.ft
Valuation:
$350,000
Permit #:
NHC-2020-01861
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
Finished home: 4, 051 garage: 845 covered patio: 337 covered entry: 221
Valuation:
$450,000
Permit #:
NHC-2023-01995
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
Construct one single family home on a tax lot
Valuation:
$300,000
Permit #:
NHC-2021-01951
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
Construct one new family home at a total size of 2492 sf including unfinished garage
Valuation:
$300,000
Permit #:
NHC-2020-01718
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
New construction home
Valuation:
$450,000
Permit #:
NHC-2023-00800
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
Construct one single family home along with accessory building
Valuation:
$400,000
Permit #:
NHC-2020-02170
Status:
complete
Fee:
N/A
Permit Type:
New home construc...
Building Type:
N/A
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Karlsen Brothers LLC License info
Verified License
| License # | KARLSBL780P6 |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Karlsen Brothers LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | KARLSBL780P6 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Karlsen Brothers LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
Insured
| Insurer | Berkley Assurance Company |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Old Republic Surety Co |
| Bond Value | $12,000 |
63
Permits
- Building permit records show that Karlsen Brothers LLC has worked on 63 permitted projects.
Karlsen Brothers LLC Employees
AK
Anders Karlsen
Partner/Member
AK
Ari Karlsen
Partner/Member
KP
Karlsen, Ari Paul
Owner