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What Are You Allowed to Build at 2415 S 320th St, Federal Way, WA, 98003?

Backyard Cottage

(Detached ADU)

Probably Not Allowed
This lot does not meet the requirements for a Detached ADU. A variance may be requested through your local zoning authority

In Home Apartment

(Conversion or Addition)

Probably Not Allowed
This lot does not meet the requirements for an Internal ADU. A variance may be requested through your local zoning authority

Swimming Pool

Might be Allowed
This property may meet the zoning requirements to build a swimming pool. Some factors may affect feasibility. 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 Not Allowed
This lot does not meet the zoning requirements to build a Single-Family home. A variance may be requested through your local zoning authority

Multifamily

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition up to 1,907,539 sq ft of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 2415 S 320th St, Federal Way, WA, 98003

Zoning Jurisdiction

FEDERAL WAY

Parcel ID

7978200525

Property Type

Church/Welfare/Relig Srvc

Zone

CC-C

Year Built

1956

Lot Size

193,069 sq ft

Gross Building Area

12,642 sq ft

Gross Floor Area

23,161 sq ft

Estimated

Living Area

23,161 sq ft

Basement Area

0 sq ft

Impervious Surface

23,161 sq ft

Estimated
12.0%of lot coverage

ADU rules for Federal Way, WA

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 2415 S 320th St, Federal Way, WA, 98003?

Backyard Cottage

(Detached ADU)

Probably Not Allowed
This lot does not meet the requirements for a Detached ADU. A variance may be requested through your local zoning authority

In Home Apartment

(Conversion or Addition)

Probably Not Allowed
This lot does not meet the requirements for an Internal ADU. A variance may be requested through your local zoning authority

Swimming Pool

Might be Allowed
This property may meet the zoning requirements to build a swimming pool. Some factors may affect feasibility. 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 Not Allowed
This lot does not meet the zoning requirements to build a Single-Family home. A variance may be requested through your local zoning authority

Multifamily

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition up to 1,907,539 sq ft of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 2415 S 320th St, Federal Way, WA, 98003

Zoning Jurisdiction

FEDERAL WAY

Parcel ID

7978200525

Property Type

Church/Welfare/Relig Srvc

Zone

CC-C

Year Built

1956

Lot Size

193,069 sq ft

Gross Building Area

12,642 sq ft

Gross Floor Area

23,161 sq ft

Estimated

Living Area

23,161 sq ft

Basement Area

0 sq ft

Impervious Surface

23,161 sq ft

Estimated
12.0%of lot coverage

ADU rules for Federal Way, WA

Based on public data and AI. Check with a pro. Read More

© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.