643 Main Street

Set in fabulous Old Town with bay views, this Sausalito duplex presents a rare opportunity for investors, contractors, or buyers seeking a value-add property with exceptional upside potential. The upper unit features 2 bedrooms and 1 bath, while the lower unit offers 1 bedroom and 1 bath, creating flexible possibilities for rental income, multi-generational living, or future renovation plans. Ideally positioned near shops, dining, waterfront attractions, and transportation, the property combines location, views, and potential in one compelling package. Sold as-is.

5/27/2026 11:00AM - 2:00PM PDT

5/30/2026 12:00PM - 3:00PM PDT

5/31/2026 12:00PM - 3:00PM PDT

3
beds

2
baths

1,690 Sq.Ft. LIVING AREA

3,211 Sq.Ft. lot

Matt Knight

title Realtor® | Writer | Probate-Certified
PHONE (323) 537-6980
EMAIL [email protected]
DRE # 02151608

Features & Amenities

Interior

total bedrooms3
Total bathrooms2
full bathrooms2
Laundry room Dryer Included, Electric, In Basement, Washer Included
Fireplace Brick, Living Room
APPLIANCES Dishwasher, Free-Standing Gas Oven, Free-Standing Gas Range, Free-Standing Refrigerator, Gas Plumbed, Gas Water Heater

Area & Lot

Status For Sale
OPEN HOUSE

5/27/2026 11:00AM - 2:00PM PDT

5/30/2026 12:00PM - 3:00PM PDT

5/31/2026 12:00PM - 3:00PM PDT
Living Area1,690 Sq.Ft.
Lot Area3,211 Sq.Ft.
MLS® ID326045567
TypeMulti-Family
YEAR BUILT1898
NeighborhoodSausalito
Architecture StylesVictorian
View DescriptionBay
School DistrictSausalito Marin City Schools

Exterior

STORIES3
water SourceMeter on Site, Water District
utilitiesCable Available, Electricity Connected, Internet Available, Natural Gas Available, Natural Gas Connected
roofComposition
lot featuresCurb(s), Curb(s)/Gutter(s)
parkingNo Garage, Uncovered Parking Spaces 2
HEAT TYPEElectric
AIR CONDITIONINGWindow Unit(s)
sewerPublic Sewer
SubstructureConcrete Perimeter, Pillar/Post/Pier, Raised
other exterior FeaturesBalcony

Financial

Sales Price$1,250,000
Zoning Duplex

Sausalito

Famous for its eccentric and historic houseboat community.

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Work With Matt and Justin

Matt and Justin are equipped to provide clients with experienced representation and personalized professional service. Whether you’re buying, selling, or learning about the current real estate market, don’t hesitate to contact them. Your home journey will thank you!

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$1,250,000

Matt Knight

Features & Amenities

Interior

Area & Lot

Exterior

Financial

Sausalito

Work With Matt and Justin

Contact Details

Matt Knight | CA DRE# 02151608

Justin O’Reilly | CA DRE # 02170089

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