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What Are You Allowed to Build at 0 E Fourth St, Mattawa, WA, 99349?

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 Allowed
This property likely meets the zoning requirements to build a Single-Family home.

Multifamily

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 0 E Fourth St, Mattawa, WA, 99349

Zoning Jurisdiction

MATTAWA

Parcel ID

030158016

Property Type

Agricultural

Zone

R-2

Year Built

1979

Lot Size

9,450 sq ft

Gross Building Area

1,248 sq ft

Gross Floor Area

1,422 sq ft

Estimated

Living Area

1,422 sq ft

Basement Area

0 sq ft

Impervious Surface

1,422 sq ft

Estimated
15.0%of lot coverage

ADU rules for Mattawa, 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 0 E Fourth St, Mattawa, WA, 99349?

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 Allowed
This property likely meets the zoning requirements to build a Single-Family home.

Multifamily

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 0 E Fourth St, Mattawa, WA, 99349

Zoning Jurisdiction

MATTAWA

Parcel ID

030158016

Property Type

Agricultural

Zone

R-2

Year Built

1979

Lot Size

9,450 sq ft

Gross Building Area

1,248 sq ft

Gross Floor Area

1,422 sq ft

Estimated

Living Area

1,422 sq ft

Basement Area

0 sq ft

Impervious Surface

1,422 sq ft

Estimated
15.0%of lot coverage

ADU rules for Mattawa, WA

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

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