Want to explore more about your property?

What Are You Allowed to Build at 18 W Third St, Dayton, OH, 45402?

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

Probably Not Allowed
This property likely does not meet the zoning requirements for a swimming pool. A variance or other zoning relief may be required. Final feasibility may depend on site-specific conditions and local interpretation.

Single Family

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home. Additional factors may affect feasibility.

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

Streetview picture of 18 W Third St, Dayton, OH, 45402

Zoning Jurisdiction

DAYTON

Parcel ID

R72005020045

Property Type

Multi Family

Zone

CBD

Year Built

1900

Lot Size

20,011 sq ft

Gross Building Area

19,160 sq ft

Gross Floor Area

19,160 sq ft

Estimated

Living Area

19,160 sq ft

Basement Area

0 sq ft

Impervious Surface

19,160 sq ft

Estimated
95.7%of lot coverage

ADU rules for Dayton, OH

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 18 W Third St, Dayton, OH, 45402?

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

Probably Not Allowed
This property likely does not meet the zoning requirements for a swimming pool. A variance or other zoning relief may be required. Final feasibility may depend on site-specific conditions and local interpretation.

Single Family

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home. Additional factors may affect feasibility.

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

Streetview picture of 18 W Third St, Dayton, OH, 45402

Zoning Jurisdiction

DAYTON

Parcel ID

R72005020045

Property Type

Multi Family

Zone

CBD

Year Built

1900

Lot Size

20,011 sq ft

Gross Building Area

19,160 sq ft

Gross Floor Area

19,160 sq ft

Estimated

Living Area

19,160 sq ft

Basement Area

0 sq ft

Impervious Surface

19,160 sq ft

Estimated
95.7%of lot coverage

ADU rules for Dayton, OH

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

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