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What Are You Allowed to Build at 3401 25th Ave W, Seattle, WA, 98199?
Backyard Cottage
(Detached ADU)
Probably Allowed
This property meets the requirements for a Detached ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit.
In Home Apartment
(Conversion or Addition)
Probably Allowed
This property meets the requirements for an Internal ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit.
Swimming Pool
Probably Allowed
This property likely meets the zoning requirements to build a swimming pool. Based on applicable zoning limits, the estimated buildable area for a pool. Final feasibility may depend on site-specific conditions and local interpretation.
Single Family
Probably Allowed
This property likely meets the zoning requirements to build a Single-Family home.
Multifamily
Home Addition
Probably Allowed
We estimate you can expand this property under current zoning rules. We weren't able to identify a specific size limit, but an addition may be possible horizontally, vertically, or both, depending on design and permitting.
Property facts
Zoning Jurisdiction
SEATTLE
Parcel ID
5036300675
Property Type
Multi Family
Zone
LR3
Year Built
1973
Lot Size
23,404 sq ft
Gross Building Area
23,998 sq ft
Gross Floor Area
16,003 sq ft
Living Area
8,008 sq ft
Basement Area
0 sq ft
Impervious Surface
8,008 sq ft
34.2%of lot coverage

Based on public data and AI. Check with a pro. Read More
© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.
What Are You Allowed to Build at 3401 25th Ave W, Seattle, WA, 98199?
Backyard Cottage
(Detached ADU)
Probably Allowed
This property meets the requirements for a Detached ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit.
In Home Apartment
(Conversion or Addition)
Probably Allowed
This property meets the requirements for an Internal ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit.
Swimming Pool
Probably Allowed
This property likely meets the zoning requirements to build a swimming pool. Based on applicable zoning limits, the estimated buildable area for a pool. Final feasibility may depend on site-specific conditions and local interpretation.
Single Family
Probably Allowed
This property likely meets the zoning requirements to build a Single-Family home.
Multifamily
Home Addition
Probably Allowed
We estimate you can expand this property under current zoning rules. We weren't able to identify a specific size limit, but an addition may be possible horizontally, vertically, or both, depending on design and permitting.
Property facts
Zoning Jurisdiction
SEATTLE
Parcel ID
5036300675
Property Type
Multi Family
Zone
LR3
Year Built
1973
Lot Size
23,404 sq ft
Gross Building Area
23,998 sq ft
Gross Floor Area
16,003 sq ft
Living Area
8,008 sq ft
Basement Area
0 sq ft
Impervious Surface
8,008 sq ft
34.2%of lot coverage

Based on public data and AI. Check with a pro. Read More
© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.