Updated: Apr 20, 2026
Location and Projects
Address
3859 83rd Ave SE, Mercer Island, WA, 98040
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Unique Design Construction
Based in Mercer Island, Unique Design LLC offers residential remodeling services throughout the Seattle metropolitan area. With 26 years in operation, the company specializes in home renovations and interior upgrades tailored to a variety of property types. Portfolio examples showcase kitchen remodels, bathroom updates, and complete home transformations, reflecting experience across both modern and traditional styles. Unique Design LLC manages projects for homeowners seeking to improve functionality and aesthetics in established neighborhoods. The company emphasizes clear communication and collaboration throughout the remodeling process, ensuring that design solutions meet each client’s requirements and tastes. With a long-standing presence in the region, Unique Design LLC is experienced in navigating the permitting process and local building standards in King County and surrounding communities.
Unique Design LLC Services
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Unique Design LLC Contact Information
Phone Number: (206) 229-3937
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Address: 3859 83rd Ave SE, Mercer Island, WA 98040
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Unique Design LLC Reviews
5 out of 5 stars, based on
1
review
-
By Heidi N.October 15, 2024Remodel entire home$65,000
This is a sample of this contractor's permits. Click here to access their complete permit history.
A single family condo unit alteration to existing structure none project involving (3 bathroom fan 1 laundry fan 1 duct work only) 25 105419 bt
Valuation:
N/A
Permit #:
25 108673 BK
Status:
final
Fee:
$208
Permit Type:
N/A
Building Type:
N/A
A single family condo unit remodel residence project involving (bedroom kitchen bathroom)
Valuation:
N/A
Permit #:
25 105419 BT
Status:
final
Fee:
$2,744
Permit Type:
N/A
Building Type:
N/A
Rev2-1100 sq ft upper addition & 367 main addition
Valuation:
N/A
Permit #:
2303-006
Status:
final
Fee:
$13,866
Permit Type:
N/A
Building Type:
N/A
Interior remodel & addition 204sf loft on main floor
Valuation:
N/A
Permit #:
2202-241
Status:
expired
Fee:
$9,571
Permit Type:
N/A
Building Type:
N/A
Remove 1 tree 0 replacements
Valuation:
N/A
Permit #:
2304-191
Status:
final
Fee:
$188
Permit Type:
N/A
Building Type:
N/A
Install sewer water and/or storm -no lane closure
Valuation:
N/A
Permit #:
2308-209
Status:
final
Fee:
$301
Permit Type:
N/A
Building Type:
N/A
1 meter and service branch supply line meter to house tbd*
Valuation:
N/A
Permit #:
2303-156
Status:
final
Fee:
$8,509
Permit Type:
N/A
Building Type:
N/A
Materials delivery - no lane closure
Valuation:
N/A
Permit #:
2308-208
Status:
final
Fee:
$226
Permit Type:
N/A
Building Type:
N/A
Water service installation. fire sprinklers required per 14-144745 br & 15-111499 fc.
Valuation:
N/A
Permit #:
16 122384 UC
Status:
final
Fee:
$1,839
Permit Type:
N/A
Building Type:
N/A
Water service installation. fire sprinklers required per 14-144745 br & 15-111499 fc
Valuation:
N/A
Permit #:
16 122384 UC
Status:
final
Fee:
$1,839
Permit Type:
N/A
Building Type:
N/A
Addition/remodel
Valuation:
N/A
Permit #:
123252
Status:
complete
Fee:
$544
Permit Type:
Addition and remodel
Building Type:
N/A
No Description Available
Valuation:
$70,000
Permit #:
RES2005-00199
Status:
Final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$27,000
Permit #:
RES2003-00286
Status:
Final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$25,000
Permit #:
RES2002-01152
Status:
Final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$24,000
Permit #:
RES2002-01136
Status:
Final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$15,000
Permit #:
RES2000-00731
Status:
Final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$7,593
Permit #:
MEC2007-01082
Status:
Final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$10,100
Permit #:
MEC2007-00832
Status:
Approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$7,600
Permit #:
MEC2008-00290
Status:
Final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$14,000
Permit #:
MEC2008-00850
Status:
Final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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173
BZ Score
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Avg Project
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Projects
164
BZ Score
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Avg Project
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Projects
164
BZ Score
$32.4K
Avg Project
-
Projects
Recent Buildzoom Projects
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Verified License
BuildZoom confirmed this contractor's license
Unique Design LLC License info
Verified License
| License # | UNIQUDL873OP |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company, Individual |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Unique Design 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 # | UNIQUDL873OP |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Limited Liability Company, Individual |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Unique Design LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | UNIQUD 972OW |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Cabinets, Millwork And Finish Carpentry |
| Business Type | Limited Liability Company, Individual |
- When BuildZoom last verified this license, it had an expiration date of September, 2017. Check the current license status of Unique Design LLC with the Washington State Department of Labor & Industries
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | UNIQUD*972OW |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Limited Liability Company, Individual |
- According to the Washington State Department of Labor & Industries, 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 Unique Design LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
Insured
| Insurer | Contractors Bonding & Insuranc |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Contractors Bonding & Insurance Co |
| Bond Value | $6,000 |
36
Permits
- Building permit records show that Unique Design LLC has worked on 36 permitted projects.
Unique Design LLC Employees
LM
Laleh Mirabbaszadeh
Partner/Member
MF
MAHRAMNIA, MOHAMMAD FARSAD
Governing Persons
MF
MAHRAMNIA, MOHAMMAD FARSHAD
Partner/Member
ML
MIRABBASZADEH, LALEH
Partner/Member
MM
Mohammad Mahramnia
Partner/Member
O
Owner
Owner
Quality work, reliable service, creative vision, incredible design. Thank you for the incredible remodeling project.