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What Are You Allowed to Build at 2020 S Jackson St, Seattle, WA, 98144?
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.
Multi Family
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
3319500985
Property Type
Multi Family
Zone
C1
Year Built
2016
Lot Size
12,210 sq ft
Gross Building Area
42,600 sq ft
Gross Floor Area
25,640 sq ft
Living Area
8,681 sq ft
Basement Area
0 sq ft
Impervious Surface
8,681 sq ft
71.1%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 2020 S Jackson St, Seattle, WA, 98144?
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.
Multi Family
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
3319500985
Property Type
Multi Family
Zone
C1
Year Built
2016
Lot Size
12,210 sq ft
Gross Building Area
42,600 sq ft
Gross Floor Area
25,640 sq ft
Living Area
8,681 sq ft
Basement Area
0 sq ft
Impervious Surface
8,681 sq ft
71.1%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.