321 Grand Boulevard
San Mateo, CA 94401 • Bed • 0 Bath • 1,852 sq.ft.

Property summary

Rare single story triplex consisting of a stand alone cottage and a duplex building on a large 7,631 SqFt lot in one of the Bay Area's most coveted submarkets. Located in close proximity to Downtown Burlingame, Downtown San Mateo, SFO and other landmarks. An ADU consultancy's pre-feasibility study indicates that up to four Accessory Dwelling Units can be added which would drive substantial income and appreciation. Up to 75% LTV conventional financing. Opportunity for future owner-occupancy and a low cost alternative to a single family home. Two one-bedroom/one-bathroom units and one two-bedroom/one-bathroom unit. All three units are large and have private yards and are occupied, providing steady rental income. Tremendous rental income upside upon unit turnover and renovation. There is a three vehicle car-port in the back of the property. Monthly rent: $7,300 (current), $10,000 (proforma). The strong rent growth, shortage of housing units, proximity to large Silicon Valley employers, and ADU potential make 321 Grand Boulevard an exceptional investment for both the cash flow and appreciation-minded investor. Offering memorandum, disclosures, and walkthrough video available. The adjacent triplex at 327 Grand Blvd and the fourplex at 315 Grand Blvd are also available for sale.

Days on market: 16

Listing updated: October 10, 2025 - 06:39:10

Property details

Property ID
ML82022562
Size
1852 sq.ft.
Home Type
Residential Income
Year Built
1902
Property Size
0.1752 acre
Garage
8
Levels
Spa
No
Patio
No
Basement
No
View
None
Pool
No

Listed by: Ismael Benhamida DRE #01722847 (415) 345-3000, Compass - MLSListings

Source: MLSListings, MLS#: ML5012166 Originating MLS: CRMLS

Interior information

Rooms
Bathrooms
0
Kitchen
N/A
Cooling
N/A
Heating
Forced Air, Wall Furnace
Flooring
Carpet, Tile, Wood
Laundry
N/A
$1,450,000
Property price
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The multiple listing data appearing on this website, or contained in reports produced therefrom, is owned and copyrighted by California Regional Multiple Listing Service, Inc. ("CRMLS") and is protected by all applicable copyright laws. Information provided is for viewer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties the viewer may be interested in purchasing. All listing data, including but not limited to square footage and lot size is believed to be accurate, but the listing Agent, listing Broker and CRMLS and its affiliates do not warrant or guarantee such accuracy. The viewer should independently verify the listed data prior to making any decisions based on such information by personal inspection and/or contacting a real estate professional. Based on information from California Regional Multiple Listing Service, Inc. as of 2025-10-10 08:54:59 PST and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

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