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678 Douglas Avenue, 
San Marcos, CA 92069

$745,000

4

Beds

2

Baths

1,388

Sq Ft

Single Family

Virtual Tour

Active

Listed by

Michelle Ferry-Cronin

eXp Realty Of Southern Ca

, 

Non Listed Office

Last updated:

January 9, 2026, 03:45 PM

MLS#

NDP2600175

Source:

San Diego MLS via CRMLS

About This Home

678 Douglas Avenue

Opportunity in a Prime San Marcos Location! This single-story 4-bedroom, 2-bath home sits on a 10,000 sq ft lot, offering exceptional flexibility and potential. In addition to the main residence, the property includes a permitted detached structure currently used as a private gym, providing ideal space for a home fitness studio, office, hobby room, or creative workspace. The functional floor plan features a living room with a fireplace, creating a warm and inviting gathering space. RV parking and three additional storage sheds, providing abundant space for vehicles, equipment, and storage. A large 2-car garage, generous outdoor areas, and appliances included add to the homes overall appeal. Conveniently located near neighborhood schools, parks, shopping, and dining, this property offers a rare chance to add value in an established San Marcos community.

Home Facts

Single Family

2 Baths

4 Bedrooms

Built in 1974

Price Summary

745,000

$536 per Sq. Ft.

MLS #:

NDP2600175

Last Updated:

January 9, 2026, 03:45 PM

Rooms & Interior

Bedrooms

Total Bedrooms:

4

Bathrooms

Total Bathrooms:

2

Full Bathrooms:

2

Interior

Living Area:

1,388 Sq. Ft.

Structure

Structure

Building Area:

1,388 Sq. Ft.

Year Built:

1974

Finances & Disclosures

Finances

Price:

$745,000

Price per Sq. Ft:

$536 per Sq. Ft.

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.