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Sold for $1,825,000
  • $1,825,000

    117 N Delaware St, San Mateo, CA 94401

    6beds
    4baths
    4,165sqft
    Duplex, Residential Income
    Built in 1990
    -- sqft lot
    $1,826,100 Zestimate®
    $438/sqft
    $3,972 Estimated rent

    Home value

    $1,826,100

    $1.68M - $1.99M

    $3,972/mo

    Zestimate® history
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    $11,484/mo

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    What's special

    Garage parkingGenerous layouts
    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 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!

    Zillow last checked:

    Listing updated:

    Listed by:

    Tim Gilmartin 00841354 650-348-2020,

    Gilmartin Group 650-348-2020,

    Kathryn Gerhardt 01958832 650-773-3595,

    Gilmartin Group

    Bought with:

    Kathryn Gerhardt, 01958832

    Gilmartin Group

    Source: MLSListings Inc,MLS#: ML82043896MLS Logo

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 6
    • Bathrooms: 4
    Heating
    • Central Forced Air
    Cooling
    • None
    Features
    • Flooring: Carpet, Tile, Vinyl Linoleum
    • Doors: None
    Interior area
    • Total structure area: 4,165
    • Total interior livable area: 4,165 sqft

    Property

    Parking
    • Total spaces: 6
    • Parking features: Attached, Carport, On Street
    • Garage spaces: 4
    • Carport spaces: 2
    • Covered spaces: 6
    Accessibility
    • Accessibility features: None
    Features
    • Stories: 2
    Lot
    • Size: 5,750 Square Feet
    Details
    • Parcel number: 032304080
    • Zoning: RM0004
    • Special conditions: Standard

    Construction

    Type & style
    • Home type: MultiFamily
    • Property subtype: Duplex, Residential Income
    Materials
    • Foundation: Concrete Perimeter
    • Roof: Shingle
    Condition
    • Year built: 1990

    Utilities & green energy

    • Gas: PublicUtilities
    • Sewer: Public Sewer
    • Water: Public
    • Utilities for property: Public Utilities, Water Public

    Community & HOA

    Location
    • Region: San Mateo

    Financial & listing details

    • Price per square foot: $438/sqft
    • Tax assessed value: $1,799,128
    • Annual tax amount: $25,839
    • Date on market: 4/21/2026
    • Listing agreement: ExclusiveAgency
    • Inclusions: Building, Land
    • Lease term: Month To Month

    Price history

    DateEventPrice
    6/26/2026Sold$1,825,000-2.9%$438/sqft
    Source: MLSListings Inc #ML82043896 Report a problem
    5/30/2026Contingent$1,880,000$451/sqft
    Source: MLSListings Inc #ML82043896 Report a problem
    4/21/2026Listed for sale$1,880,000+425.9%$451/sqft
    Source: MLSListings Inc #ML82043896 Report a problem
    7/9/2021Sold$357,500-82.1%$86/sqft
    Source: Public Record Report a problem
    4/8/2021Listing removed--
    Source: MLSListings Inc Report a problem
    9/5/2020Price change$2,000,000-13%$480/sqft
    Source: Joseph Stirlacci, Broker #ML81803417 Report a problem
    7/29/2020Listed for sale$2,300,000$552/sqft
    Source: Joseph Stirlacci, Broker #ML81803417 Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025$25,840 -0.2%$1,799,128 +2%
    2024$25,901 +3.8%$1,763,854 +2%
    2023$24,961 -2.1%$1,729,272 +2%
    2022$25,495 +13.9%$1,695,366 +10.9%
    2021$22,386 +9.8%$1,528,732 +7%
    2020$20,382 +2%$1,428,618 +2%
    2019$19,991 +5.9%$1,400,606 +2%
    2018$18,878 -6.3%$1,373,144 +2%
    2017$20,147 +7.9%$1,346,220 +2%
    2016$18,665 +87.7%$1,319,824 +1.5%
    2015$9,943 $1,300,000 +86.3%
    2014$9,943 $697,874 +0.5%
    2013-- $694,721 +2%
    2012-- $681,100
    2011-- $681,100 +2.8%
    2010-- $662,756 -0.2%
    2009-- $664,331 +2%
    2008-- $651,306 +2%
    2007-- $638,536 +2%
    2006-- $626,017
    2005-- $626,017 +4%
    2004-- $601,709 +1.9%
    2003-- $590,682 +2%
    2002-- $579,101 +2%
    2001-- $567,747 +2%
    2000-- $556,615
    Find assessor info on the county website

    Neighborhood: Central

    Nearby schools

    GreatSchools rating
    Schools provided by the listing agent
    • District: SanMateoFosterCityElementary

    Source: MLSListings Inc. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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    Estimated market value
    $1,826,100
    Get a cash offer in 3 minutes
    Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
    Estimated market value
    $1,826,100