More Pictures Coming Soon! First time ever on the market in highly desirable Rural Twin Oaks Valley Road in San Marcos. Situated on just under half an acre, this beautifully maintained property offers the perfect blend of country living, energy efficiency, and modern updates. Ideal for a hobby farm or sustainable lifestyle, the fully fenced property features a large garden, animal structure, XL chicken coop, multiple storage buildings, and convenient driveway access to the rear of the lot. There is abundant off-street parking with room for four vehicles on one side of the property and two vehicles on the other, plus plenty of space for RVs, boats, trailers, and recreational toys. Ample room to expand or add additional improvements. The home has been lovingly cared for and thoughtfully upgraded over the years. Standout features include a brand new roof, fully owned solar system with Tesla battery storage, renovated kitchen, updated bathroom, wood flooring throughout, and a spacious mudroom with laundry. Enjoy year-round outdoor living with two covered patios and expansive usable land. A rare opportunity to own a never-before-on-the-market home in Twin Oaks Valley offering privacy, flexibility, and room to grow while still being conveniently close to town.
For sale
Listing Provided by: Berkshire Hathaway HomeService
$850,000
442 Cassou Rd, San Marcos, CA 92069
3beds
1,418sqft
Est.:
Single Family Residence
Built in 1956
0.41 Acres Lot
$862,300 Zestimate®
$599/sqft
$-- HOA
What's special
Brand new roofMultiple storage buildingsFully fenced propertyXl chicken coopAnimal structureWood flooring throughoutLarge garden
- 2 days |
- 1,751 |
- 75 |
Likely to sell faster than
Zillow last checked: 7 hours ago
Listing updated: March 07, 2026 at 01:20am
Listing Provided by:
Matt Swisshelm DRE #02029598 mattswisshelmtc@gmail.com,
Berkshire Hathaway HomeService
Source: CRMLS,MLS#: NDP2602002
Originating MLS: California Regional MLS (North San Diego County & Pacific Southwest AORs)
Originating MLS: California Regional MLS (North San Diego County & Pacific Southwest AORs)Tour with a local agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 1
- Full bathrooms: 1
- Main level bathrooms: 1
- Main level bedrooms: 3
Rooms
- Room types: Art Studio, Bedroom, Kitchen, Living Room, Workshop
Bedroom
- Features: All Bedrooms Down
Cooling
- Ductless, See Remarks
Appliances
- Laundry: Electric Dryer Hookup, Gas Dryer Hookup, Laundry Room
Features
- All Bedrooms Down, Workshop
- Has fireplace: Yes
- Fireplace features: Living Room
- Common walls with other units/homes: No Common Walls
Interior area
- Total interior livable area: 1,418 sqft
Video & virtual tour
Property
Parking
- Total spaces: 6
- Parking features: Concrete
- Uncovered spaces: 6
Features
- Levels: One
- Stories: 1
- Entry location: front door
- Pool features: None
- Has view: Yes
- View description: Neighborhood, Trees/Woods
Lot
- Size: 0.41 Acres
- Features: 0-1 Unit/Acre
Details
- Parcel number: 1820605100
- Zoning: Agricultural / Residentia
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Condition
- Year built: 1956
Utilities & green energy
- Sewer: Septic Tank
Community & HOA
Community
- Features: Rural
Location
- Region: San Marcos
Financial & listing details
- Price per square foot: $599/sqft
- Tax assessed value: $714,000
- Annual tax amount: $8,113
- Date on market: 3/7/2026
- Listing terms: Cash,Conventional,FHA,USDA Loan,VA Loan
Estimated market value
$862,300
$793,000 - $931,000
$3,484/mo
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 3/7/2026 | Listed for sale | $850,000+45.3%$599/sqft |
Source:  CRMLS #NDP2602002 Report a problem | ||
| 10/6/2023 | Sold | $585,000$413/sqft |
Source: Public Record Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $8,113 +4.5% | $714,000 +2% |
| 2024 | $7,762 +1190.1% | $700,000 +1260.4% |
| 2023 | $602 +1.4% | $51,457 +2% |
| 2022 | $593 +1.6% | $50,449 +2% |
| 2021 | $584 +0.9% | $49,460 +1% |
| 2020 | $579 +7.1% | $48,953 +2% |
| 2019 | $540 -2.6% | $47,994 +2% |
| 2018 | $555 +2% | $47,054 +2% |
| 2017 | $544 +1.8% | $46,132 +2% |
| 2016 | $534 +1.4% | $45,228 +1.5% |
| 2015 | $527 +2.1% | $44,550 +2% |
| 2014 | $516 | $43,678 +0.5% |
| 2013 | -- | $43,482 +2% |
| 2012 | -- | $42,631 +2% |
| 2011 | -- | $41,797 +0.7% |
| 2010 | -- | $41,486 -0.2% |
| 2009 | -- | $41,586 +2% |
| 2008 | -- | $40,771 +2% |
| 2007 | -- | $39,972 +2% |
| 2006 | -- | $39,189 +2% |
| 2005 | -- | $38,421 +2% |
| 2004 | -- | $37,669 +1.9% |
| 2003 | -- | $36,980 +2% |
| 2002 | -- | $36,256 +2% |
| 2001 | -- | $35,546 |
Find assessor info on the county website
BuyAbility℠ payment
Est. payment
$4,896/mo
Principal & interest
$4067
Property taxes
$829
Climate risks
Neighborhood: 92069
Nearby schools
GreatSchools rating
- 8/10Twin Oaks Elementary SchoolGrades: K-5Distance: 0.5 mi
- 5/10Woodland Park Middle SchoolGrades: 6-8Distance: 2.9 mi
- 7/10Mission Hills High SchoolGrades: 9-12Distance: 2.7 mi
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