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What Are You Allowed to Build at 239 S Madison Ave, Pasadena, CA, 91101?

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 Allowed
This property meets the requirements for an Internal ADU of up to 1,000 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.

Multifamily

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 239 S Madison Ave, Pasadena, CA, 91101

Zoning Jurisdiction

PASADENA

Parcel ID

5734010003

Property Type

Multi Family

Zone

CD-RM-48

Year Built

1951

Lot Size

20,032 sq ft

Gross Building Area

17,570 sq ft

Gross Floor Area

14,873 sq ft

Estimated

Living Area

12,177 sq ft

Basement Area

0 sq ft

Impervious Surface

12,177 sq ft

Estimated
60.8%of lot coverage

ADU rules for Pasadena, 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 239 S Madison Ave, Pasadena, CA, 91101?

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 Allowed
This property meets the requirements for an Internal ADU of up to 1,000 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.

Multifamily

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 239 S Madison Ave, Pasadena, CA, 91101

Zoning Jurisdiction

PASADENA

Parcel ID

5734010003

Property Type

Multi Family

Zone

CD-RM-48

Year Built

1951

Lot Size

20,032 sq ft

Gross Building Area

17,570 sq ft

Gross Floor Area

14,873 sq ft

Estimated

Living Area

12,177 sq ft

Basement Area

0 sq ft

Impervious Surface

12,177 sq ft

Estimated
60.8%of lot coverage

ADU rules for Pasadena, CA

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

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