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117 N Delaware StreetSan Mateo, CA 94401

For Sale

$1,880,000

Smart Buyer Rebate $18,800

A high-quality Peninsula duplex with stable income, minimal expense drag, and clearly defined long-term upside.117 N. Delaware Street presents a rare opportunity to acquire a well-located duplex in the heart of San Mateo. The property consists of two large units, each configured as 3 bedrooms and 2.5 bathrooms with garage parking offering strong fundamentals for both owner-occupiers and long-term investors. With tenants in place for over 20 years, the asset provides stable in-place income and a clear path for predictable rent growth under California rent control guidelines. The property currently generates $7,610 per month ($91,320 annually), with a highly efficient expense. Market rents for comparable units are estimated at approximately $4,500+ per month, indicating meaningful long-term upside. At market levels, the property would generate approximately $108,000. Generous layouts, strong rental demand and a desirable unit mix support long-term growth and income optimization. Don't miss this rare opportunity whether as an investment or a property you could occupy!

Listed by Tim Gilmartin

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License #00841354

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Gilmartin Group

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650-348-2020

Listed by Kathryn Gerhardt

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License #01958832

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Gilmartin Group

Last updated April 22, 2026

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Source: MLSListings #ML82043896

Listing Facts

  • TypeMulti-family
  • NeighborhoodDowntown San Mateo
  • Days on Prevu12
  • Taxes$25,839/year
  • Size4,165 sqft
  • Price per sqft$451

Amenities

  • Pets Allowed
  • Parking

Location

Mortgage Calculator

Listing History

04/21/2026
Listed by Gilmartin Group
$1,880,000

Property Details for 117 N Delaware Street

Exterior

Construction

  • Number Of Units Total: 2
  • Roof: Shingle
  • Stories: 2
  • Year Built: 1990
  • Year Built Details: 2

Measurements

  • Building Area Total: 4,165
  • Lot Size Area: 5,750
  • Lot Size Source: Assessor
  • Lot Size Square Feet: 5,750
  • Lot Size Units: Square Feet

Financial

Residential Income

  • Cap Rate: 2.99
  • Gross Income: $91,320.00
  • Operating Expense Includes: Insurance, Maintenance, Water/Sewer

Taxes

  • Parcel Number: 032-304-080
  • Tax Annual Amount: $25,839.00

Interior

Features

  • Flooring: Carpet, Tile, Vinyl/Linoleum

Measurements

  • Living Area: 4,165

Parking

Parking

  • Carport Spaces: 2
  • Carport: Yes
  • Garage Spaces: 4
  • Garage: Yes
  • Parking Features: Attached Garage, Carport, On Street
  • Parking Total: 2

Schools

Elementary School

  • Elementary School District: San Mateo-Foster City Elementary

High School

  • High School District: San Mateo Union High

Utilities

Equipment

  • Heating: Central Forced Air
  • Sewer: Public Sewer
  • Utilities: Public Utilities, Water - Public
  • Water Source: Public

Frequently Asked Questions

How many bedrooms does this multi-family home have?

There is bedrooms in this multi-family home at 117 N Delaware Street.

Does this multi-family home have parking?

Yes, there are 4 parking spaces available for 117 N Delaware Street.

What are the annual taxes for 117 N Delaware Street?

Annual taxes for this multi-family home are estimated at $25,839.

How does 117 N Delaware Street compare to other multi-family homes in Downtown San Mateo?

This multi-family home is listed 12% below the average price for multi-family homes in Downtown San Mateo and has been on the market for 266 less days than the typical home in this area.

What is the square footage on this multi-family home?

According to the MLS, this listing is 4,165 sqft.

117 N Delaware Street is a -bedroom multi-family home for sale in San Mateo CA 94401. Listed on Prevu for 12 days at $1,880,000. This property features 4,165 square feet of living space, located in Downtown San Mateo. The median listing price for multi-family homes in this area is $399,000. The home offers pets allowed and parking. Explore more multi-family home listings in San Mateo.

Based on information from MLSListings™️ 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 Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.