FORMER SINGLE-STORY MODEL HOME WITH UPGRADES GALORE & MASSIVE 16,000 SQ. FT. VIEW LOT! Don't miss this incredible opportunity to secure one of the very last single-story homes available in the Williams Ranch community. This spectacular Plan 13 residence was a former model home, meaning it comes absolutely loaded with upgrades galore, high-end custom finishes, and unique designer features at every single turn. Spanning an impressive 3,141 square feet of luxury living area, the home is perfectly situated on an expansive, premium 16,000 square foot lot. The outdoor space is a true private oasis, featuring a completely finished, professionally landscaped backyard adorned with beautiful, mature trees, all framing a breathtaking, picturesque view.
The highly desirable single-level floor plan offers the perfect balance of grand entertaining spaces and private retreats, featuring four spacious bedrooms and 3.5 beautifully appointed bathrooms. Because this was a showcase model home, every room has been professionally curated with top-tier interior details designed for seamless indoor-outdoor California living. With its sprawling, turnkey backyard, mature landscaping, premium view orientation, and unparalleled builder upgrades, this rare property is ready for immediate enjoyment. As one of the final single-story opportunities remaining in the community, this home combines model-home sophistication with ultimate single-level convenience.
Live on a 430-acre master planned community nestled between the Sierra Pelona Mountains. Come and be a part of a community that has an exceptional recreation center, junior-size Olympic swimming pool, and an outdoor kitchen. Here you will be surrounded by abundant open space hiking trails, numerous pocket parks, entertainment amphitheater, large citrus orchards, and working vineyards.
New construction
Listed by: Williams Homes Inc. • Michael Brunette • Contact: 970-619-0314
Price cut: $50K (7/19)
$1,799,900
28426 Old Springs Rd, Castaic, CA 91384
4beds
3,141sqft
Single Family Residence
Built in 2022
0.38 Acres Lot
$1,762,400 Zestimate®
$573/sqft
$385/mo HOA
What's special
- 89 days
- 88
- 4
Zillow last checked:
Listing updated:
Listed by:
Michael Brunette DRE #01258266 970-619-0314,
Williams Homes Inc.
Source: CRMLS,MLS#: SR26138792
Originating MLS: California Regional MLS
Originating MLS: California Regional MLSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 4
- Full bathrooms: 3
- 1/2 bathrooms: 1
- Main level bathrooms: 2
- Main level bedrooms: 1
Rooms
- Room types: Bedroom, Family Room, Kitchen, Laundry, Loft, Living Room, Office, Other, Pantry, Dining Room
Bedroom
- Features: Bedroom on Main Level
Bathroom
- Features: Bathroom Exhaust Fan, Closet, Dual Sinks, Enclosed Toilet, Quartz Counters, Separate Shower, Upgraded, Walk-In Shower
Kitchen
- Features: Kitchen Island, Kitchen/Family Room Combo, Quartz Counters, Walk-In Pantry
Other
- Features: Walk-In Closet(s)
Pantry
- Features: Walk-In Pantry
Heating
- Central
Cooling
- Central Air, Dual
Appliances
- Included: Dishwasher, Microwave
- Laundry: Gas Dryer Hookup, Laundry Room, Upper Level
Features
- Breakfast Area, Separate/Formal Dining Room, High Ceilings, Open Floorplan, Pantry, Quartz Counters, Recessed Lighting, Bedroom on Main Level, Loft, Walk-In Pantry, Walk-In Closet(s)
- Doors: Insulated Doors
- Windows: Double Pane Windows
- Has fireplace: No
- Fireplace features: None
- Common walls with other units/homes: No Common Walls
Interior area
- Total interior livable area: 3,141 sqft
Property
Parking
- Total spaces: 3
- Parking features: Direct Access, Driveway, Garage
- Attached garage spaces: 3
Features
- Levels: One
- Stories: 1
- Entry location: 1
- Patio & porch: Front Porch
- Pool features: Association
- Has spa: Yes
- Spa features: Association
- Fencing: Block,Wrought Iron
- Has view: Yes
- View description: Neighborhood
Lot
- Size: 0.38 Acres
- Features: Back Yard, Drip Irrigation/Bubblers, Front Yard, Sprinklers In Front
Details
- Parcel number: 2866065033
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Ranch
- Property subtype: Single Family Residence
Materials
- Foundation: Slab
- Roof: Concrete
Condition
- Turnkey
- New construction: Yes
- Year built: 2022
Details
- Builder model: 8B
- Builder name: Williams Homes
Utilities & green energy
- Electric: Photovoltaics Seller Owned
- Sewer: Public Sewer
- Water: Public
Community & HOA
Community
- Features: Curbs, Park, Storm Drain(s), Street Lights, Sidewalks
- Security: Carbon Monoxide Detector(s), Fire Sprinkler System, Smoke Detector(s)
- Subdivision: Williams Ranch (Wilrch)
HOA
- Has HOA: Yes
- Amenities included: Clubhouse, Outdoor Cooking Area, Picnic Area, Pool, Trail(s)
- HOA fee: $385 monthly
- HOA name: Williams Ranch
- HOA phone: 714-285-2626
Location
- Region: Castaic
Financial & listing details
- Price per square foot: $573/sqft
- Tax assessed value: $1,315,896
- Date on market: 6/26/2026
- Cumulative days on market: 89 days
- Listing terms: Cash,Conventional,1031 Exchange,VA Loan
- Road surface type: Paved
Estimated market value
$1,762,400
$1.67M - $1.85M
$5,724/mo
Price history
| Date | Event | Price |
|---|---|---|
| 7/19/2026 | Price change | $1,799,900-2.7%$573/sqft |
Source:  CRMLS #SR26138792 Report a problem | ||
| 6/26/2026 | Listed for sale | $1,849,900$589/sqft |
Source: CRMLS #SR26138792 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2026 | -- | $1,315,896 +2% |
| 2025 | $18,614 +4.3% | $1,290,095 +2% |
| 2024 | $17,851 +505.9% | $1,264,800 +1779% |
| 2023 | $2,946 +2.2% | $67,313 +2% |
| 2022 | $2,882 | $65,994 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
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Neighborhood: 91384
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