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What Are You Allowed to Build at 9 Bay Way, San Rafael, CA, 94901?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.
In Home Apartment
(Conversion or Addition)
This property may qualify for an Internal ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.
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
Probably Not Allowed
The existing home is allowed as a legally nonconforming structure. However, the lot does not meet current zoning requirements for new Single-Family construction. A variance or other zoning relief may be requested.
Multi Family
Home Addition
The property may meet the zoning requirements to build a Home Addition up to 3,140 sq ft of zoning-counted floor area. Additional factors may affect feasibility.
Property facts
Zoning Jurisdiction
SAN RAFAEL
Parcel ID
01630224
Property Type
Single Family
Zone
R20
Year Built
1984
Lot Size
6,403 sq ft
Gross Building Area
744 sq ft
Gross Floor Area
2,890 sq ft
Living Area
2,890 sq ft
Basement Area
0 sq ft
Impervious Surface
744 sq ft
11.6%of lot coverage

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 9 Bay Way, San Rafael, CA, 94901?
Backyard Cottage
(Detached ADU)
This property may qualify for a Detached ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.
In Home Apartment
(Conversion or Addition)
This property may qualify for an Internal ADU of up to 1,000 sq ft allowed By Right, or possibly more by Special Permit, but there are some special considerations.
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
Probably Not Allowed
The existing home is allowed as a legally nonconforming structure. However, the lot does not meet current zoning requirements for new Single-Family construction. A variance or other zoning relief may be requested.
Multi Family
Home Addition
The property may meet the zoning requirements to build a Home Addition up to 3,140 sq ft of zoning-counted floor area. Additional factors may affect feasibility.
Property facts
Zoning Jurisdiction
SAN RAFAEL
Parcel ID
01630224
Property Type
Single Family
Zone
R20
Year Built
1984
Lot Size
6,403 sq ft
Gross Building Area
744 sq ft
Gross Floor Area
2,890 sq ft
Living Area
2,890 sq ft
Basement Area
0 sq ft
Impervious Surface
744 sq ft
11.6%of lot coverage

Based on public data and AI. Check with a pro. Read More
© 2026 TheBuilder AI Inc. d/b/aFutureLot. All rights reserved.