3

San Marcos, CA Multifamily Homes & Duplexes for Sale

Section Image
  • 515 Cassou Rd, San Marcos, CA 92069
    515 Cassou Rd, San Marcos, CA 92069
    515 Cassou Rd, San Marcos, CA 92069
    /35

    $1,800,000

    • 4 Beds
    • 3 Baths
    • 4,227 Sq Ft

    515 Cassou Rd, San Marcos, CA 92069

    Unique Investment Opportunity in Twin Oaks Valley - only 10 miles inland. 4 contiguous parcels with 2 detached houses and 800 sf shed on 8.67 acres, including private road. Two houses: 515B, and 515A - appraised in October 2023 for a combined value of $2.2M! Appraisal did NOT include the 2 additional parcels. APNs 182-280-13, -14, -15, and 182-240-25. R-2 zoning. Unincorporated San Marcos - San

    Mylene Merlo Mylene Merlo, Broker

    515 Cassou Rd, San Marcos, CA 92069
  • 3524 Lone Pine Ln, San Marcos, CA 92078
    3524 Lone Pine Ln, San Marcos, CA 92078
    3524 Lone Pine Ln, San Marcos, CA 92078
    /38

    $1,194,000

    • 2,249 Sq Ft

    3524 Lone Pine Ln, San Marcos, CA 92078

    This charming home has wonderful street presence and is located on a double cul-de-sac next to open space and Buddhist center, which plans to keep an open space buffer. AND... peek-a-boo ocean views from loft and primary bath with full distant ocean views from the backyard deck. Beautiful sunsets! Just minutes to the beach directly on Palomar Airport Road. This home has a great floor plan! It is

    Kyle Belding Del Mar Realty Assoc.,Inc

    3524 Lone Pine Ln, San Marcos, CA 92078
  • 129 Smilax Rd Unit 31, Vista, CA 92083
    129 Smilax Rd Unit 31, Vista, CA 92083
    129 Smilax Rd Unit 31, Vista, CA 92083
    /8

    $899,990

    • 4 Beds
    • 2 Baths
    • 1,296 Sq Ft

    129 Smilax Rd Unit 31, Vista, CA 92083

    DETACHED DUPLEXES on XL CORNER LOT - (2) 129 SMILAX RD & 131 SMILAX RD - GREAT 1031 OPPORTUNITY to own income producing property in CENTRALLY located VISTA, CA - (2) TOTAL UNITS totaling 1,296 SQ FT on 8,712 SQ FT CORNER LOT - 4 TOTAL BEDS/2 TOTAL BATHS/2 CAR GARAGE/EXT. LAUNDRY ROOM (on-site), NEW ROOF, NEW WH's, UPDATED FLOORING, PAINT, COUNTER TOPS & CABINETRY, (3) window replacements - LONG

    Kimberly Nardi Grapevine Properties

    129 Smilax Rd Unit 31, Vista, CA 92083
California San Diego County San Marcos

Multi-Family Homes & Duplexes for Sale in San Marcos, CA

Why Live in San Marcos

Across a wide terrain of former dairy fields flanking Highway 78 in San Diego's North County, San Marcos is a 24-square-mile city making its mark as fertile ground for education, recreation and a new downtown. "San Marcos is 61 years old, but we've ...

Learn more about living in San Marcos

Home Trends in San Marcos, CA

On average, homes in San Marcos, CA sell after 32 days on the market compared to the national average of 52 days. The median sale price for homes in San Marcos, CA over the last 12 months is $960,000, up 3% from the median home sale price over the previous 12 months.

Housing Trends

Median Sale Price
$960,000
Median Single Family Sale Price
$1,161,226
Median Townhouse Sale Price
$735,000
Median 2 Bedroom Sale Price
$585,000
Median 1 Bedroom Sale Price
$299,000
Average Price Per Sq Ft
$554
Number of Homes for Sale
206
Last 12 months Home Sales
756
Months of Supply
3.30
Median List Price
$969,000
Median Change From 1st List Price
1%
Median Home Sale Price YoY Change
3%
How to Buy a Home How to Finance a Home How to Sell a Home

In San Marcos, there are currently 3 multi-family homes for sale, providing an appealing investment opportunity for buyers. With multi-family homes priced between $899,990 to $1,800,000, there's a range to accomodate every budget. As of September, 2025 the median home price in San Marcos is $969,000, while the average sale price is $1,062,412, offering insights into the local housing market. On average, multi-family homes spend 32 days listed before being sold. Multi-family homes include a variety of property types, from duplexes, triplexes, and fourplexes, to apartment complexes, all within a single building divided to accommodate multiple families living separately. These multi-family properties for sale offer investors the chance to generate rental income. Whether you're considering a duplex for a beginner investment or an apartment complex for a more substantial venture, there are investment properties available to meet your requirements. Explore the range of multi-family homes for sale in San Marcos, CA.

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

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. 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

Homes.com Licensing Information

§ 442-H New York Standard Operating Procedures

New York Fair Housing Notice

TREC: Information about brokerage services, Consumer protection notice

California DRE #01937601

Contact Homes.com Brokerage

Copyright © 2025 CoStar Group