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What Are You Allowed to Build at 209 Penn St, El Segundo, CA, 90245?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 800 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 3,833 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 up to 1,970 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.

Multifamily

Home Addition

Probably Allowed
We estimate you can expand this property by up to 800 sq ft under current zoning rules. This may allow for a horizontal addition, a vertical addition, or both, depending on design and permitting.

Property facts

Streetview picture of 209 Penn St, El Segundo, CA, 90245

Zoning Jurisdiction

EL SEGUNDO

Parcel ID

4135017016

Property Type

Multi Family

Zone

R-3

Year Built

1944

Lot Size

7,163 sq ft

Gross Building Area

4,044 sq ft

Gross Floor Area

3,989 sq ft

Estimated

Living Area

3,934 sq ft

Basement Area

0 sq ft

Impervious Surface

3,934 sq ft

Estimated
54.9%of lot coverage

ADU rules for El Segundo, CA

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 209 Penn St, El Segundo, CA, 90245?

Backyard Cottage

(Detached ADU)

Probably Allowed
This property meets the requirements for a Detached ADU of up to 800 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 3,833 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 up to 1,970 sq ft of zoning-counted floor area allowed By Right, or possibly more by Special Permit.

Multifamily

Home Addition

Probably Allowed
We estimate you can expand this property by up to 800 sq ft under current zoning rules. This may allow for a horizontal addition, a vertical addition, or both, depending on design and permitting.

Property facts

Streetview picture of 209 Penn St, El Segundo, CA, 90245

Zoning Jurisdiction

EL SEGUNDO

Parcel ID

4135017016

Property Type

Multi Family

Zone

R-3

Year Built

1944

Lot Size

7,163 sq ft

Gross Building Area

4,044 sq ft

Gross Floor Area

3,989 sq ft

Estimated

Living Area

3,934 sq ft

Basement Area

0 sq ft

Impervious Surface

3,934 sq ft

Estimated
54.9%of lot coverage

ADU rules for El Segundo, CA

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

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