The ultimate one-of-a-kind compound located in the picturesque community of Santa Rosa Valley! Nestled on 1.42 acres, this privately gated custom estate, lushly landscaped oasis offers sought-after serenity. Along with the majestic main house which features 6 bedrooms and 6.5 baths for a total of 6,296 sq ft, there is also a guest house that is approximately 1,400 sq ft with 2 bedrooms plus an office, as well as an apartment over the garage with a large open kitchen, family room/bedroom. Entertainer's dream with spectacular, expansive grounds featuring resort style pool and spa with waterfalls, firepit, built-in bbq with large seating and dining areas. Garage space for a total of 13 cars...3 car garage attached to the house...in the rear of the lot there is also a detached garage with lifts that can fit up to 10 cars. Unique opportunity for car enthusiasts! Too many amenities to mention...don't miss seeing this fabulous property!
Single-familyProperty Type
1990Year Built
1.41 acresLot Size
$507Est. Price/Sq.Ft.
13 car garageParking
Listed by Janice Bigotti•DRE #00938049• Beverly and Company Inc.
The ultimate one-of-a-kind compound located in the picturesque community of Santa Rosa Valley! Nestled on 1.42 acres, this privately gated custom estate, lushly landscaped oasis offers sought-after serenity. Along with the majestic main house which features 6 bedrooms and 6.5 baths for a total of 6,296 sq ft, there is also a guest house that is approximately 1,400 sq ft with 2 bedrooms plus an office, as well as an apartment over the garage with a large open kitchen, family room/bedroom. Entertainer's dream with spectacular, expansive grounds featuring resort style pool and spa with waterfalls, firepit, built-in bbq with large seating and dining areas. Garage space for a total of 13 cars...3 car garage attached to the house...in the rear of the lot there is also a detached garage with lifts that can fit up to 10 cars. Unique opportunity for car enthusiasts! Too many amenities to mention...don't miss seeing this fabulous property!
Public Records
Feb 27, 1989
Sold
$300,000
$48/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$35,419 (+2.0%)
$2,028,000 + $1,092,000
$3,120,000
2024
$34,720 (+3.5%)
$2,083,152 + $1,121,696
$3,204,848
2023
$33,544 (+57.6%)
$2,042,306 + $1,099,702
$3,142,008
2022
$21,287 (+4.1%)
$2,002,260 + $1,078,140
$3,080,400
2021
$20,443 (+0.3%)
$530,498 + $1,389,217
$1,919,715
2020
$20,372 (+0.4%)
$520,096 + $1,361,978
$1,882,074
2019
$20,283 (+1.6%)
$514,764 + $1,348,013
$1,862,777
2018
$19,959 (+6.3%)
$504,671 + $1,321,582
$1,826,253
2017
$18,777 (+2.4%)
$485,075 + $1,270,264
$1,755,339
2016
$18,328 (+1.1%)
$485,075 + $1,270,264
$1,755,339
2015
$18,135 (+2.4%)
$475,564 + $1,245,357
$1,720,921
2014
$17,709 (−1.0%)
$459,247 + $1,202,624
$1,661,871
2013
$17,881 (+2.9%)
$459,247 + $1,202,624
$1,661,871
2012
$17,377 (+2.8%)
$457,172 + $1,197,190
$1,654,362
2011
$16,909 (−0.3%)
$448,208 + $1,173,716
$1,621,924
2010
$16,951 (+1.4%)
$439,420 + $1,150,702
$1,590,122
2009
$16,712 (+2.1%)
$436,137 + $1,142,103
$1,578,240
2008
$16,367
$437,174 + $1,144,817
$1,581,991
Tax history for 2857 Las Posas Cir
Year
Property tax
Land + Additions
Assessment*
2025
$35,419 (+2.0%)
$2,028,000 + $1,092,000
$3,120,000
2024
$34,720 (+3.5%)
$2,083,152 + $1,121,696
$3,204,848
2023
$33,544 (+57.6%)
$2,042,306 + $1,099,702
$3,142,008
2022
$21,287 (+4.1%)
$2,002,260 + $1,078,140
$3,080,400
2021
$20,443 (+0.3%)
$530,498 + $1,389,217
$1,919,715
2020
$20,372 (+0.4%)
$520,096 + $1,361,978
$1,882,074
2019
$20,283 (+1.6%)
$514,764 + $1,348,013
$1,862,777
2018
$19,959 (+6.3%)
$504,671 + $1,321,582
$1,826,253
2017
$18,777 (+2.4%)
$485,075 + $1,270,264
$1,755,339
2016
$18,328 (+1.1%)
$485,075 + $1,270,264
$1,755,339
2015
$18,135 (+2.4%)
$475,564 + $1,245,357
$1,720,921
2014
$17,709 (−1.0%)
$459,247 + $1,202,624
$1,661,871
2013
$17,881 (+2.9%)
$459,247 + $1,202,624
$1,661,871
2012
$17,377 (+2.8%)
$457,172 + $1,197,190
$1,654,362
2011
$16,909 (−0.3%)
$448,208 + $1,173,716
$1,621,924
2010
$16,951 (+1.4%)
$439,420 + $1,150,702
$1,590,122
2009
$16,712 (+2.1%)
$436,137 + $1,142,103
$1,578,240
2008
$16,367
$437,174 + $1,144,817
$1,581,991
*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
6
Baths
7
Stories
2
Lot width
—
Lot depth
—
Lot size
1.42 Acres
Year renovated
—
Sq. Ft.
6,296
Year built
1990
Style
Single Family Residential
County
Ventura County
APN
5160150575
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 24, 2026.
RA
Rural Agricultural Zone
The purpose of this zone is to provide for and maintain a rural setting where a wide range of agricultural uses are permitted while surrounding residential land uses are protected.