$2,199,000 - 300 31st Avenue, San Mateo

  • 3Beds
  • 2Baths
  • 1,620SQ. Feet
  • 0.15Acres

San Mateo Home Sale

Welcome to this beautifully remodeled 3-bedroom, 2-bath home (1620sf) with the ADDED BONUS of a detached ADU (341sf), providing a total of 1961sf of living space. Designed for modern living, the open-concept kitchen features a large island with seating and flows seamlessly into the dining and living rooms, perfect for everyday living and entertaining. The private bedroom wing includes a spacious primary suite with backyard views and two additional bedrooms sharing an updated bath. A versatile playroom adds extra flexibility. The detached ADU, complete with kitchenette and full bath, offers ideal space for guests, extended family, or a home office. Outdoor living shines with an expansive yard featuring a fire pit with built-in seating, a deck, lawn, and dedicated play space. Additional highlights include a two-car garage and prime location across from a pocket park and just a short walk to the newly reimagined Hillsdale Shopping Center. Move-in ready and thoughtfully upgraded, this home truly has it all.

Sales Agent

Sam Smith
  • Sam Smith
  • San Clemente Realtor ®
  • Phone: 949-204-5110
  • Cell: 949-204-5110
  • Contact Agent Now

Amenities

  • Parking Spaces2
  • # of Garages2

School Information

  • DistrictOther

Essential Information

  • MLS® #ML82021175
  • Price$2,199,000
  • Bedrooms3
  • Bathrooms2.00
  • Full Baths2
  • Square Footage1,620
  • Acres0.15
  • Year Built1941
  • TypeResidential
  • Sub-TypeSingle Family Residence
  • StatusClosed
  • Listing AgentSternsmith Group
  • Listing OfficeCompass

Exterior

  • WindowsSkylight(s)
  • RoofTile
  • FoundationConcrete Perimeter

Additional Information

  • Date ListedSeptember 11th, 2025
  • Days on Market14
  • ZoningR10006
  • Short SaleN
  • RE / Bank OwnedN

Community Information

  • Address300 31st Avenue
  • Area699 - Not Defined
  • CitySan Mateo
  • CountySan Mateo
  • Zip Code94403

Interior

  • InteriorWood
  • Interior FeaturesWalk-In Closet(s)
  • AppliancesDishwasher, Microwave, Refrigerator, Range Hood
  • CoolingNone
  • FireplaceYes
  • FireplacesLiving Room
  • # of Stories1

Price Change History for 300 31st Avenue, San Mateo, (MLS® #ML82021175)

Date Details Price Change
Closed
Pending (from Active)

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  • City:
    San Mateo
  • Price Range:
    $138,500 - $7,850,000
  • Current Listings:
    439
  • HOA Dues:
    $809
  • Average Price per Square Foot:
    $1,004

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Based on information from California Regional Multiple Listing Service, Inc. as of February 9th, 2026 at 11:36pm PST. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.