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What Are You Allowed to Build at 27 Nw Trinity Pl, Portland, OR, 97209?

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

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home up to 20,909 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit. Additional factors may affect feasibility.

Multi Family

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition up to 10,319 sq ft of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 27 Nw Trinity Pl, Portland, OR, 97209

Zoning Jurisdiction

PORTLAND

Parcel ID

R141206

Property Type

Commercial

Zone

RM4

Year Built

1910

Lot Size

5,227 sq ft

Gross Building Area

17,128 sq ft

Gross Floor Area

10,589 sq ft

Estimated

Living Area

4,051 sq ft

Basement Area

0 sq ft

Impervious Surface

4,051 sq ft

Estimated
77.5%of lot coverage

ADU rules for Portland, OR

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 27 Nw Trinity Pl, Portland, OR, 97209?

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

Might be Allowed
This property may meet the zoning requirements to build a Single-Family home up to 20,909 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit. Additional factors may affect feasibility.

Multi Family

Home Addition

Might be Allowed
The property may meet the zoning requirements to build a Home Addition up to 10,319 sq ft of zoning-counted floor area. Additional factors may affect feasibility.

Property facts

Streetview picture of 27 Nw Trinity Pl, Portland, OR, 97209

Zoning Jurisdiction

PORTLAND

Parcel ID

R141206

Property Type

Commercial

Zone

RM4

Year Built

1910

Lot Size

5,227 sq ft

Gross Building Area

17,128 sq ft

Gross Floor Area

10,589 sq ft

Estimated

Living Area

4,051 sq ft

Basement Area

0 sq ft

Impervious Surface

4,051 sq ft

Estimated
77.5%of lot coverage

ADU rules for Portland, OR

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

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