OFF MARKET

$1,669,524

•

4 ba

•

3,275

sq ft

3803 Walnut Ave, Simi Valley, CA 93063

About this home

Do not attempt to drive onto property. Property is located behind 2 security gates, posted for NO TRESPASS & strictly enforced. Property has an active oil facility which is leaking oil into the soil of the property from 2 pumps, pipeline and holding tank which is all located on the property. Oil facility is leaking poisonous toxic noxious fumes into the public air supply. Benzene, a known carcinogen, was identified within a sample from this oil production facility holding tank which is constantly releasing this chemical & other chemicals in the gases-being-released into the public air supply. Seller is unaware of the level of contamination to the soil from the leaking oil. State & local agencies are aware of the environmental hazard.

Single-familyProperty Type

1984Year Built

3.13 acresLot Size

$510Est. Price/Sq.Ft.

2 car garageParking

Listed by Andy Brody •DRE #01001772 • Keller Williams Exclusive Properties

•805-501-6478 (agent)

•andy@boxhockey.com (agent)

•805-777-7117 (broker)

Source:CSMAR #213004881

Redfin Estimate

$1,669,524

$10K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 41.2% higher than the average sale price ($1.18M) of 6 comparable homes.

SOLD JUL 17, 2026
$1,125,000
A
4 beds3 baths3,244 sq ft
3491 Tapo, Simi Valley, CA 93063
SOLD JUL 31, 2026
$1,055,000
B
4 beds2.5 baths2,351 sq ft
3509 Vicki Ct, Simi Valley, CA 93063
SOLD MAY 20, 2026
$1,210,000
C
4 beds3 baths3,067 sq ft
3279 Avenida Simi, Simi Valley, CA 93063
SOLD MAY 21, 2026
$1,300,000
D
4 beds3.5 baths2,757 sq ft
3166 Sycamore Dr, Simi Valley, CA 93065
SOLD APR 24, 2026
$1,300,000
E
4 beds3.5 baths3,235 sq ft
3319 Township Ave, Simi Valley, CA 93063
SOLD DEC 12, 2025
$1,105,000
F
4 beds3 baths2,565 sq ft
3445 Presidio Ct, Simi Valley, CA 93063

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Earn from this home

Sell

$1,578,008

Est. take-home

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Rent

$5,942/mo

Redfin rental estimate

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Market trends in 93065, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.4%

0.3% MoM

Median sale price

$800K

$9K MoM

Avg. days on market

42d

1 days MoM

Recently sold homes

165

7 MoM

New listings for sale

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OPEN FRI, 9:30AM TO 2PM
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3D WALKTHROUGH
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3D WALKTHROUGH
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3D WALKTHROUGH
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See all

Provided by Redfin

Sale history for 3803 Walnut Ave

Date

Event

Price

CSMAR #213004881

Apr 19, 2021

Listing Removed

—

Nov 17, 2013

Listed

$2,999,000

$916/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$15,986 (−8.5%)

$945,000 + $508,000

$1,453,000

2024

$17,477 (+9.3%)

$945,000 + $508,000

$1,453,000

2023

$15,989 (+19.1%)

$1,024,000 + $551,000

$1,575,000

2022

$13,424 (+0.7%)

$975,000 + $525,000

$1,500,000

2021

$13,330 (+7.1%)

$798,000 + $430,000

$1,228,000

2020

$12,443 (+17.7%)

$621,000 + $574,000

$1,195,000

2019

$10,574 (+6.6%)

$583,000 + $538,000

$1,121,000

2018

$9,920 (+9.6%)

$508,000 + $468,000

$976,000

2017

$9,054 (+4.4%)

$424,413 + $395,235

$819,648

2016

$8,670 (+1.6%)

$424,413 + $395,235

$819,648

2015

$8,530 (+0.9%)

$416,092 + $387,486

$803,578

2014

$8,458 (+0.7%)

$401,816 + $374,191

$776,007

2013

$8,398 (−24.8%)

$401,816 + $374,191

$776,007

2012

$11,166 (+0.8%)

$400,000 + $372,500

$772,500

2011

$11,078 (+0.2%)

$845,000 + $180,000

$1,025,000

2010

$11,053 (−0.4%)

$845,000 + $180,000

$1,025,000

2009

$11,096 (+38.9%)

$845,000 + $180,000

$1,025,000

2008

$7,986

$845,000 + $180,000

$1,025,000

Tax history for 3803 Walnut Ave

Year

Property tax

Land + Additions

Assessment*

2025

$15,986 (−8.5%)

$945,000 + $508,000

$1,453,000

2024

$17,477 (+9.3%)

$945,000 + $508,000

$1,453,000

2023

$15,989 (+19.1%)

$1,024,000 + $551,000

$1,575,000

2022

$13,424 (+0.7%)

$975,000 + $525,000

$1,500,000

2021

$13,330 (+7.1%)

$798,000 + $430,000

$1,228,000

2020

$12,443 (+17.7%)

$621,000 + $574,000

$1,195,000

2019

$10,574 (+6.6%)

$583,000 + $538,000

$1,121,000

2018

$9,920 (+9.6%)

$508,000 + $468,000

$976,000

2017

$9,054 (+4.4%)

$424,413 + $395,235

$819,648

2016

$8,670 (+1.6%)

$424,413 + $395,235

$819,648

2015

$8,530 (+0.9%)

$416,092 + $387,486

$803,578

2014

$8,458 (+0.7%)

$401,816 + $374,191

$776,007

2013

$8,398 (−24.8%)

$401,816 + $374,191

$776,007

2012

$11,166 (+0.8%)

$400,000 + $372,500

$772,500

2011

$11,078 (+0.2%)

$845,000 + $180,000

$1,025,000

2010

$11,053 (−0.4%)

$845,000 + $180,000

$1,025,000

2009

$11,096 (+38.9%)

$845,000 + $180,000

$1,025,000

2008

$7,986

$845,000 + $180,000

$1,025,000

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Zoning

Residential Estate District

The RE zoning district is intended to provide for a custom-designed residential environment with very large lots, houses of an individual style, and a distinct single-family neighborhood image. The Minimum Lot Area in this zoning district is one acre and the maximum residential 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

Interior

Room Information
# of Rooms: 8

Exterior

Pool Information
Has Pool

Property Information
Subdivision Name: TAPO RHO 03
Living Sq. Ft: 3,275
Gross Sq. Ft: 4,633
Ground Floor Sq. Ft: 3,275
Building Sq. Ft: 5,149
# of Stories: 1
Legal Description: MAP E6 478

Parking & Garage Information
Garage/Parking Sq. Ft: 489

Lot Information
# of Buildings: 1
Land Sq. Ft: 136,342
Legal Lot Number: 89
Acres: 3.13
Zoning Code: RE-1AC
County Use Description: CUSTOM SINGLE FAM RES

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 4
Baths: 4.0
Sq. Ft.: 3,275
Stories: 1.0
Lot Size: 3.13 acres
Style: Single Family Residential
Year Built: 1984
Year Renovated: —
County: Ventura County
APN: 6140010125

Home facts updated by county records on Jul 10, 2026

Around this home

Schools

Township Elementary School

Public K-6 • Assigned • 0.5mi

7/10

Valley View Middle School

Public 6-8 • Assigned • 0.7mi

4/10

Simi Valley High School

Public 9-12 • Assigned • 2.4mi

7/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

6/10 Flood Factor

Estimated 22-32% chance of a flood reaching the building in the next 30 years

9/10 Fire Factor

48% chance of being in a wildfire in next 30 years

5/10 Heat Factor

7 days above 101° expected this year, 19 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

3/10 Air Factor

4 unhealthy days expected this year, 4 days in 30 years

Provided by First Street

Historical weather

Simi Valley, CA • 93063

Average low and high temperatures (°F)

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

$1.59M – $1.92M

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Nearby similar homes

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New listings for sale in 93063

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COMING SOON

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3D WALKTHROUGH

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3D WALKTHROUGH

$839,000

3 beds2 baths1,434 sq ft

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(805) 583-9000

Home values near 3803 Walnut Ave

Data from public records.

Address	Redfin Estimate
3941 Walnut Ave, Simi Valley, CA 4 Beds \| 2 Baths \| 2125 Sq. Ft.	$4,319,420
3916 Walnut Ave, Simi Valley, CA 10 Beds \| 8 Baths \| 5712 Sq. Ft.	$1,388,680

Address	Redfin Estimate
3874 Walnut Ave, Simi Valley, CA 3 Beds \| 2 Baths \| 2002 Sq. Ft.	$956,748
3932 Walnut Ave, Simi Valley, CA 10 Beds \| 8 Baths \| 5712 Sq. Ft.	$1,356,338

Address	Redfin Estimate
3894 Walnut Ave, Simi Valley, CA 10 Beds \| 8 Baths \| 5712 Sq. Ft.	$1,417,233
3799 Lightning Ridge Way, Simi Valley, CA 4 Beds \| 5.5 Baths \| 7406 Sq. Ft.	$2,517,406

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 93065, CA

Sale history for 3803 Walnut Ave

Tax history for 3803 Walnut Ave

Zoning

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 93063

Home values near 3803 Walnut Ave

More real estate resources