Privately situated home with guest unit on acreage in the desirable Long Valley Ranch area of West Atascadero. Set on 4.29± oak-studded acres with scenic hillside views, this property offers flexibility, and convenience just minutes from Highway 101. The detached guest unit features 1 bedroom, 1 bathroom, a full kitchen, living area, and private deck—ideal for multigenerational living, guests, or potential supplemental use. The guest unit also includes a two-car garage. The main residence is a two-story home with an open-concept layout, vaulted ceilings, and abundant natural light. The updated kitchen includes leathered granite countertops, new soft-close shaker cabinetry, stainless steel appliances, and an upgraded Hague WaterMax soft water system. The kitchen flows into the dining area and spacious living room, with direct access to an expansive view deck—perfect for entertaining or enjoying the surrounding hills and valleys. Upstairs are three bedrooms, including a spacious primary suite with dual vanities and a soaking tub. The property benefits from a unique microclimate with coastal influence, helping moderate summer temperatures while providing a peaceful setting close to town amenities.
Single-familyProperty Type
1990Year Built
4.29 acresLot Size
$432Price/Sq.Ft.
2 car garageParking
Listed by John Walker•DRE #01879971• W Property Group
Contact: 805-610-6943
Bought with Gabe Davis•DRE #02149531• Eighty20 Group
Est. $3,493 per month, based on comparable rentals
Sale and tax history for 12355 Santa Ana
Sale History
Tax History
Date
Event
Price
CRMLS #NS26064142
Jun 12, 2026
Sold
$1,050,000
$432/sq ft
May 24, 2026
Pending
—
May 4, 2026
Contingent
—
Apr 16, 2026
Price Changed
$1,110,000
$457/sq ft
Mar 25, 2026
Listed
$1,180,000
$486/sq ft
CRMLS #NS25120381
Nov 30, 2025
Listing Removed
—
Jul 29, 2025
Price Changed
$1,150,000
$473/sq ft
May 29, 2025
Listed
$1,200,000
$494/sq ft
Public Records
Jun 19, 1990
Sold
$350,000
$144/sq ft
Year
Property tax
Land + Additions
Assessment*
2025
$7,935 (+4.9%)
$318,998 + $396,691
$715,689
2024
$7,566
$312,744 + $388,913
$701,657
2023
$7,561 (+1.3%)
$306,612 + $381,288
$687,900
2022
$7,466 (+2.0%)
$300,600 + $373,812
$674,412
2021
$7,318 (+1.0%)
$294,706 + $366,483
$661,189
2020
$7,242 (+2.0%)
$288,928 + $359,298
$648,226
2019
$7,099 (+2.0%)
$285,966 + $355,614
$641,580
2018
$6,958 (+2.0%)
$280,359 + $348,642
$629,001
2017
$6,820 (+2.0%)
$269,473 + $335,104
$604,577
2016
$6,684 (+1.6%)
$269,473 + $335,104
$604,577
2015
$6,581 (+9.5%)
$264,190 + $328,534
$592,724
2014
$6,010 (+1.8%)
$255,125 + $317,262
$572,387
2013
$5,905 (+2.0%)
$253,972 + $315,829
$569,801
2012
$5,788
$253,972 + $315,829
$569,801
Public record
Public record
Zoning
Permits
Beds
3
Baths
3
Stories
2
Lot width
—
Lot depth
—
Lot size
4.29 Acres
Year renovated
—
Sq. Ft.
2,400
Year built
1990
Style
Single Family Residential
County
San Luis Obispo County
APN
050-212-022
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 17, 2026.
RS
NORTH COUNTY PLANNING AREA
SALINAS RIVER SUB AREA
INLAND AREA
Residential Suburban Zoning District
This zone is established to provide for large lot residential uses in areas outside the urban services line or in other areas where large lots are desirable to protect land uses and buildings subject to inundation, steep slopes or other hazards.
Zone overlays
Permitted uses
Include but are not limited to:
Housing
Housing-Single unit
Housing-Senior
Infrastructure
Housing-Mobile home park
May 29, 2025 • Final
Over the counter residential
Repair corrosion damage on a septic tank. Install new risers and a filter.
Plumbing
Oct 24, 2003 • Final
Grading and site improvement
Construct a new deck addition for an existing single-family home.
Addition
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Parking
Parking / Garage Information
Attached Garage
# of Garage Spaces: 2
# of Parking Spaces: 2
Interior
Laundry Information
Has Laundry
Inside
Kitchen Information
Appliances: Water Softener
Has Appliances
Bathroom Information
# of Baths (Full): 3
# of Baths (1/2): 1
Cooling Information
Central
Has Cooling
Room Information
All Bedrooms Up
Fireplace Information
Family Room
Has Fireplace
Heating Information
Central Furnace
Has Heating
Interior Features
Entry Level: 1
Entry Location: 1
Granite Counters
Levels: Two
Main Level Bathrooms: 2
Main Level Bedrooms: 1
Exterior
Exterior Information
Structure Type: House
Exterior Features
Pool Features: None
Lot Information
Elevation Units: Feet
Lot Size Source: Public Records
Lot Features: Landscaped, Lot Shape-Irregular
Property Information
Total # of Units: 2
Common Walls: No Common Walls
Living Area Source: Appraiser
Parcel Number: 050212022
Total # of Stories: 2
Has View
Year Built Source: Public Records
Property ADU: Yes
# of Property ADU: 2
Financial
Assesments Information
Assessments: Unknown
Utilities
Utilities Information
Sewer: Septic Tank
Water Source: District/Public
Location
Neighborhood Information
Community Features: Rural
School Information
High School District: Atascadero Unified
Location Information
Latitude: 35.49724100
Longitude: -120.71755700
Other Subdivision Name: ATNorthwest(20)
Directions: Home is at the top of the shared driveway.
Subdivision Name: ATNorthwest(20)
Public facts
Beds: 3
Baths: 3.0
Sq. Ft.: 2,400
Stories: 2.0
Lot Size: 4.29 acres
Style: Single Family Residential
Year Built: 1990
Year Renovated: —
County: San Luis Obispo County
APN: 050-212-022
Home facts updated by county records on Aug 17, 2026
Other
Listing Information
IDX Contact Info: 805-610-6943
Days Active in MLS: 39
Continuous Days Active in MLS: 39
Listing Agent Information
List Agent First Name: John
List Agent Last Name: Walker
Listing Office Information
List Office Name: W Property Group
Selling Agent Information
Buyer Agent First Name: Gabe
Buyer Agent Last Name: Davis
Selling Office Information
Buyer Office Name: Eighty20 Group
Around this home
Schools
Monterey Road Elementary School
Public K-5 • Assigned • 1.4mi
6/10
Atascadero Middle School
Public 6-8 • Assigned • 2.9mi
7/10
Atascadero High School
Public 9-12 • Assigned • 2.7mi
8/10
Provided by GreatSchools
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
5/10 Fire Factor
4% chance of being in a wildfire in next 30 years
4/10 Heat Factor
7 days above 92° expected this year, 16 days in 30 years
1/10 Wind Factor
Minimal risk of severe winds over next 30 years
7/10 Air Factor
12 unhealthy days expected this year, 12 days in 30 years
Provided by First Street
Historical weather
Atascadero, CA • 93422
Average low and high temperatures (°F)
63
36
65
41
71
43
69
44
76
46
80
50
81
52
90
56
83
55
79
49
65
43
63
41
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
48/ 100
Low sunlight
Sunscore
There appears to be significant shading by surrounding buildings, terrain, and vegetation.
4.8 hrs
3 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.10M – $1.33M
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