Beautiful, turnkey home in highly sought-after Castlewood subdivision of Big Sky neighborhood. This 4,441 sq ft home sits on one of the largest lots at 14,374 sq ft. The home features a bright and airy open floor plan with abundant natural light flowing throughout. The formal living room includes large windows, a fireplace and it is adjacent to the formal dining room. The chef's kitchen features granite counter tops, a large island with breakfast bar, Thermador appliances (refrigerator, double ovens, microwave, oven warmer and 6-burner gas cooktop), a sizeable wrap-around walk-in pantry and much more. The kitchen is open to a huge family room with a fireplace and also a breakfast nook with windows all around. The downstairs en-suite bedroom has a bathtub/shower combination. On the other side of the house is a powder room and an enormous bonus room. The luxurious primary bedroom upstairs has a sitting area that opens up to a spacious balcony and a spa-like primary bathroom with an extra-large shower and separate jetted tub. There are 3 additional large bedrooms with attached baths, a laundry room with a sink, a loft with custom built-ins and plenty of storage space. Other features of the house include a long driveway, a whole-house fan, built-ins, ceiling fans, fully owned Tesla solar system, Tesla wall charger, Tesla charging port inside the garage, tandem garage parking with lots of storage and much more. The huge private backyard includes a fire pit, built-in BBQ area, and grassy areas. This move-in ready property offers the ideal combination of space, comfort and luxury. Stunning home in a desirable community of Simi Valley. Schedule a private tour today and don't miss out in calling this place home!
Single-familyProperty Type
2006Year Built
0.33 acresLot Size
$415Est. Price/Sq.Ft.
2 car garageParking
Listed by Vonny Reagan•DRE #01163122• The ONE Luxury Properties
•805-405-3698 (agent)
•vonny.reagan@icloud.com (agent)
•805-418-6330 (broker)
Bought with Demi Fox•DRE #01342133• High State Realty
•805-490-1401 (broker)
Bought with Shaun Fox•DRE #02002913• High State Realty
This impressive 4441sqft, 5 bedroom, 4 ½ bath Castlewood home in Big Sky sits on a 14,577 sqft landscaped and hardscaped lot with outdoor entertainment and a spa with a view. Enter through the front door and off to the right you will find the formal living room with fireplace, large floor to ceiling windows, and adjacent formal dining room. Off to the left is a private en-suite with a bathtub/shower combination. Toward the back of the house, you will find an extra-large family room w/ fireplace that opens to the Chefs kitchen with stainless steel appliances, walk-in pantry, double oven/microwave, and an expansive center island w/ breakfast bar offering generous seating for 6. Around the corner of the formal dining room is the expansive bonus room which conveniently converts to a classroom for in-home education or a game room for those teenagers looking for something to do during the Pandemic. The second floor features 3 additional large bedrooms with attached baths, an upstairs laundry room, a loft with custom built-ins, and a retreat-style master suite w/ sitting room and private balcony. The expansive outside patio leads out to the sprawling backyard perfect for entertaining with a built-in BBQ, spa, and cozy fire pit with views of the mountains. There are too many features to include beyond the indoor sprinkler system, outdoor satellite sprinkler system, and whole house fan to list so you will have to come to see for yourself.
Year
Property tax
Land + Additions
Assessment*
2025
$15,001 (+1.1%)
$1,173,510 + $631,890
$1,805,400
2024
$14,836 (+6.3%)
$843,756 + $454,078
$1,297,834
2023
$13,961 (−0.1%)
$827,212 + $445,175
$1,272,387
2022
$13,978 (+0.3%)
$810,992 + $436,447
$1,247,439
2021
$13,943 (+11.2%)
$795,090 + $427,890
$1,222,980
2020
$12,542 (+17.3%)
$779,500 + $419,500
$1,199,000
2019
$10,692 (+2.2%)
$703,000 + $379,000
$1,082,000
2018
$10,463 (−3.5%)
$611,000 + $330,000
$941,000
2017
$10,845 (+4.0%)
$612,000 + $331,000
$943,000
2016
$10,430 (+1.9%)
$612,000 + $331,000
$943,000
2015
$10,238 (−0.4%)
$604,000 + $326,000
$930,000
2014
$10,277 (+15.0%)
$592,000 + $320,000
$912,000
2013
$8,933 (+5.5%)
$592,000 + $320,000
$912,000
2012
$8,466 (−4.9%)
$513,000 + $277,000
$790,000
2011
$8,907 (−2.5%)
$483,000 + $261,000
$744,000
2010
$9,134 (−6.9%)
$514,000 + $277,000
$791,000
2009
$9,814 (−17.7%)
$529,000 + $285,000
$814,000
2008
$11,919
$572,000 + $308,000
$880,000
Tax history for 2121 Silverstar St
Year
Property tax
Land + Additions
Assessment*
2025
$15,001 (+1.1%)
$1,173,510 + $631,890
$1,805,400
2024
$14,836 (+6.3%)
$843,756 + $454,078
$1,297,834
2023
$13,961 (−0.1%)
$827,212 + $445,175
$1,272,387
2022
$13,978 (+0.3%)
$810,992 + $436,447
$1,247,439
2021
$13,943 (+11.2%)
$795,090 + $427,890
$1,222,980
2020
$12,542 (+17.3%)
$779,500 + $419,500
$1,199,000
2019
$10,692 (+2.2%)
$703,000 + $379,000
$1,082,000
2018
$10,463 (−3.5%)
$611,000 + $330,000
$941,000
2017
$10,845 (+4.0%)
$612,000 + $331,000
$943,000
2016
$10,430 (+1.9%)
$612,000 + $331,000
$943,000
2015
$10,238 (−0.4%)
$604,000 + $326,000
$930,000
2014
$10,277 (+15.0%)
$592,000 + $320,000
$912,000
2013
$8,933 (+5.5%)
$592,000 + $320,000
$912,000
2012
$8,466 (−4.9%)
$513,000 + $277,000
$790,000
2011
$8,907 (−2.5%)
$483,000 + $261,000
$744,000
2010
$9,134 (−6.9%)
$514,000 + $277,000
$791,000
2009
$9,814 (−17.7%)
$529,000 + $285,000
$814,000
2008
$11,919
$572,000 + $308,000
$880,000
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Beds
5
Baths
5
Stories
2
Lot width
—
Lot depth
—
Lot size
0.33 Acres
Year renovated
—
Sq. Ft.
4,441
Year built
2006
Style
Single Family Residential
County
Ventura County
APN
6190072085
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 24, 2026.
RM
Residential Medium Density District
The RM zoning district is intended to provide for a suburban single-family residential environment with a range of parcel sizes and some clustering of parcels. The residential density in this zoning district may range from 3.6 to 5.0 units per acre. The maximum density is one dwelling per lot.
Permitted uses
Include but are not limited to:
Housing-Single unit
Housing-Senior
Fire house
Golf related
Agriculture-Cropland
Agriculture-Grove / orchard / vineyard
Property details
Parking
Parking Information
Garage Spaces: 2.0
Attached Garage YN: No
Parking Features: Direct Access, Driveway, Garage
Interior
Bathroom Information
Bathrooms Half: 1
Bathrooms One Quarter: 0
Bathrooms Full: 4
Bathrooms Three Quarter: 0
Bathrooms Total Decimal: 4.5
Bathrooms Total Integer: 5
Bedroom Information
Bedrooms Total: 5
Heating & Cooling
Cooling: Ceiling Fan(s), Other
Heating YN: Yes
Interior Features
Living Area: 4441.0
Living Area Source: Public Records
Interior Features: High Ceilings
Laundry Features: Individual Room, Upper Level
Appliances: Microwave, Double Oven
Fireplace YN: Yes
Fireplace Features: Other
Flooring: Carpet, Hardwood, Other
Exterior
Exterior Features
Patio And Porch Features: Other
Fencing: Other
Entry Level: 1
Entry Location: Main Level
Pool Information
Pool Private YN: No
Spa YN: Yes
Property Information
Security Features: Carbon Monoxide Detector(s), Security System Leased
Levels: Two
Property Type: Residential
Property Sub Type: Single Family Residence
Property Condition: Updated/Remodeled
Lot Information
View YN: Yes
Building Information
Building Area Total: 4441.0
Financial
Financial Information
Listing Terms: Conventional, Cash, Cash to New Loan
Utilities
Green Features
Green Energy Generation: Solar
Location
HOA Information
Has HOA
Association Name: Big Sky Association
Association Amenities: Biking Trails, Hiking Trails
Association Fee: 260.0
Association Fee Frequency: Monthly
Location Information
County Or Parish: Ventura
Cross Street: Erringer Rd and Legacy Dr
Directions: 118 Fwy to Erringer, head North. Turn right onto Legacy Dr and left onto Crosspointe Ct, which turns to Silverstar St. House is on the left, #2121.
MLS Area Major: SVC - Simi Central
State Or Province: CA
Subdivision Name: Castlewood-493
Unparsed Address: 2121 Silverstar Street, Simi Valley, CA 93065
Public facts
Beds: 5
Baths: 5.0
Sq. Ft.: 4,441
Stories: 2.0
Lot Size: 0.33 acres
Style: Single Family Residential
Year Built: 2006
Year Renovated: —
County: Ventura County
APN: 6190072085
Home facts updated by county records on Sep 24, 2026
Other
Documents & Disclosures
Disclosures: Homeowners Association, CC & R
Documents Change Timestamp: 2024-12-12T08:07:13Z
Documents Count: 0
Listing Information
Land Lease Type: Fee Simple
Approval Status: Yes
Exclusions: TV in family room, curtains and spa
Inclusions: Refrigerator, Washer & Dryer, and outdoor furniture
Special Listing Conditions: Standard
Mls Status: Closed
Stories Total: 2
Photos Count: 1
Videos Count: 0
Year Built: 2006
Year Built Source: Assessor
Zoning Description: R1
Around this home
Schools
Atherwood Elementary School
Public K-6 • Assigned • 1.0mi
6/10
Hillside Middle School
Public 6-8 • Assigned • 2.9mi
5/10
Simi Valley High School
Public 9-12 • Assigned • 4.2mi
7/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
8/10 Fire Factor
39% chance of being in a wildfire in next 30 years
5/10 Heat Factor
7 days above 99° expected this year, 18 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
4/10 Air Factor
4 unhealthy days expected this year, 7 days in 30 years
Provided by First Street
Historical weather
Simi Valley, CA • 93065
Average low and high temperatures (°F)
68
50
71
50
72
50
71
50
74
53
78
57
84
60
86
62
82
62
78
55
70
50
70
49
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10 hours in
June and 6.2 hours in December, placing it above the
U.S. average for solar exposure.
10 hrs
6.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.75M – $2.12M
Reach more buyers when you sell with Redfin. Save up to $18,433 in fees.3 minutes to get started.