Google street view image for 18815 Los Alimos St, Porter Ranch, CA 91326

Off market feb 1999 for $425K

$1,450,727

Est. refi paymentEst. refi $2,909/mo

•

4 ba

•

3,106

sq ft

18815 Los Alimos St, Porter Ranch, CA 91326

About this home

18815 Los Alimos St is a 3,106 square foot house on a 8,796 square foot lot with 5 bedrooms and 4 bathrooms. - it last sold on February 26, 1999 for $425,000. Based on Redfin's Porter Ranch data, we estimate the home's value is $1,450,727.

Single-familyProperty Type

1978Year Built

8,796 sq ftLot Size

$467Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$1,450,727

$1.0M since sold in February 1999$3,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5.9% higher than the average sale price ($1.37M) of 6 comparable homes.

SOLD JUN 12, 2026
$1,370,000
A
5 beds3 baths3,004 sq ft
18814 Los Alimos St, Northridge, CA 91326
SOLD DEC 5, 2025
$1,275,000
B
5 beds3 baths3,004 sq ft
10721 Crebs Ave, Porter Ranch, CA 91326
SOLD JUN 10, 2026
$1,385,000
C
4 beds4 baths3,022 sq ft
18808 Willowtree, Porter Ranch, CA 91326
SOLD JUL 7, 2026
$1,200,000
D
4 beds3 baths2,452 sq ft
18770 Tribune, Los Angeles, CA 91326
SOLD AUG 14, 2026
$1,645,000
E
4 beds5 baths3,648 sq ft
18759 Fairfield Rd, Northridge, CA 91326
SOLD JUL 20, 2026
$1,345,000
F
5 beds3 baths2,494 sq ft
19461 Twin Hills Pl, Porter Ranch, CA 91326

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Earn from this home

Sell

$1,327,059

Est. take-home

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Refinance

Est. cash available

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Rent

$6,725/mo

Redfin rental estimate

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Market trends in Northridge West, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.0%

0.1% MoM

Median sale price

$1.1M

$62K MoM

Avg. days on market

51d

0 days MoM

Recently sold homes

1 MoM

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COMING SOON
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OPEN SUN, 1PM TO 4PM
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See all

Provided by Redfin

Sale history for 18815 Los Alimos St

Year

Property tax

Land + Additions

Assessment*

2025

$9,181 (+1.4%)

$332,978 + $415,808

$748,786

2024

$9,057 (+1.9%)

$326,456 + $407,664

$734,120

2023

$8,885 (+4.8%)

$320,055 + $399,671

$719,726

2022

$8,480 (+1.4%)

$313,780 + $391,835

$705,615

2021

$8,363 (−0.9%)

$307,628 + $384,152

$691,780

2020

$8,442 (+4.0%)

$301,597 + $376,620

$678,217

2019

$8,116 (+1.7%)

$298,505 + $372,759

$671,264

2018

$7,984 (+2.2%)

$292,652 + $365,450

$658,102

2017

$7,810 (+2.7%)

$281,289 + $351,260

$632,549

2016

$7,608 (+1.5%)

$281,289 + $351,260

$632,549

2015

$7,498 (−0.4%)

$275,774 + $344,373

$620,147

2014

$7,525 (−1.3%)

$266,312 + $332,557

$598,869

2012

$7,625 (+3.2%)

$265,109 + $331,055

$596,164

2011

$7,386 (+8.6%)

$259,911 + $324,564

$584,475

2010

$6,799 (+3.7%)

$254,815 + $318,200

$573,015

2009

$6,554 (+4.4%)

$195,166 + $320,992

$516,158

2008

$6,277

$195,630 + $321,755

$517,385

Tax history for 18815 Los Alimos St

Year

Property tax

Land + Additions

Assessment*

2025

$9,181 (+1.4%)

$332,978 + $415,808

$748,786

2024

$9,057 (+1.9%)

$326,456 + $407,664

$734,120

2023

$8,885 (+4.8%)

$320,055 + $399,671

$719,726

2022

$8,480 (+1.4%)

$313,780 + $391,835

$705,615

2021

$8,363 (−0.9%)

$307,628 + $384,152

$691,780

2020

$8,442 (+4.0%)

$301,597 + $376,620

$678,217

2019

$8,116 (+1.7%)

$298,505 + $372,759

$671,264

2018

$7,984 (+2.2%)

$292,652 + $365,450

$658,102

2017

$7,810 (+2.7%)

$281,289 + $351,260

$632,549

2016

$7,608 (+1.5%)

$281,289 + $351,260

$632,549

2015

$7,498 (−0.4%)

$275,774 + $344,373

$620,147

2014

$7,525 (−1.3%)

$266,312 + $332,557

$598,869

2012

$7,625 (+3.2%)

$265,109 + $331,055

$596,164

2011

$7,386 (+8.6%)

$259,911 + $324,564

$584,475

2010

$6,799 (+3.7%)

$254,815 + $318,200

$573,015

2009

$6,554 (+4.4%)

$195,166 + $320,992

$516,158

2008

$6,277

$195,630 + $321,755

$517,385

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

Permits

Aug 16, 2019 • Final

Bldg-alter/repair

Replace the roof on a residential building and attached garage with a class A or B material. Apply a certified cool roof product to the roof area. The new roofing material will be installed over existing solid sheathing.

Roofing

Jul 31, 2019 • Final

Electrical

Upgrade the electrical service panel to a 200-amp capacity.

Electrical

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

Interior

Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central

Exterior

Pool Information
Has Pool

Property Information
Subdivision Name: 31878
Living Sq. Ft: 3,106
# of Units: 1
Legal Description: TR=31878 LOT 6

Lot Information
# of Buildings: 1
Land Sq. Ft: 8,796
Legal Lot Number: 6
Municipality Name: LOS ANGELES
Acres: 0.2019
Depth Footage: 148
Front Footage: 60
Zoning Code: LARS
County Use Description: SINGLE FAMILY RESID

Location Information
Parcel Location Influence: Cul-De-Sac

Utility Information
Water Service Type: Public

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 5
Baths: 4.0
Sq. Ft.: 3,106
Stories: —
Lot Size: 8,796 square feet
Style: Single Family Residential
Year Built: 1978
Year Renovated: 1978
County: Los Angeles County
APN: 2717024029

Home facts updated by county records on Oct 6, 2026

Around this home

Schools

Beckford Charter for Enriched Studies

Charter K-5 • Assigned • 0.3mi

10/10

Granada Hills Charter High School

Charter K-12 • Assigned • 1.1mi

9/10

Northridge Academy High

Public 9-12 • Assigned • 1.8mi

6/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The LA market is rewarding realistic pricing and good strategy. Buyers have more choices and are taking their time, while sellers who price correctly are still getting results. The days of simply “testing the market” are behind us—in this market,...
4 weeks ago • Los Angeles
Peter Santos
Redfin Premier agent
85 deals
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Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

2/10 Fire Factor

0.00% chance of being in a wildfire in next 30 years

6/10 Heat Factor

7 days above 100° expected this year, 18 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

6/10 Air Factor

10 unhealthy days expected this year, 12 days in 30 years

Provided by First Street

Historical weather

Porter Ranch, CA • 91326

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 6.3 hours in December, placing it above the U.S. average for solar exposure.

10 hrs

6.3 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.38M – $1.67M

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Nearby similar homes

NEW 7 HRS AGO

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New listings for sale in 91326

COMING SOON

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5 beds5 baths4,116 sq ft

20362 Via Galileo, Porter Ranch, CA 91326

NEW 7 HRS AGO

$1,649,000

4 beds4 baths2,537 sq ft

11149 Chimineas Ave, Porter Ranch, CA 91326

OPEN SAT, 12PM TO 4PMVIDEO TOUR

$1,235,000

4 beds3 baths1,917 sq ft

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NEW 28 HRS AGOVIDEO TOUR

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10543 Yolanda Ave, Porter Ranch, CA 91326

OPEN SUN, 1PM TO 4PM3D WALKTHROUGH

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20331 W Windsor Ln, Porter Ranch, CA 91326

Pinnacle Estate Properties

NEW 34 HRS AGO

$1,995,000

4 beds6 baths4,721 sq ft

20264 Via Galileo, Porter Ranch, CA 91326

OPEN SUN, 2PM TO 5PM

$989,000

4 beds3 baths2,233 sq ft

18515 Chatsworth St, Porter Ranch, CA 91326

COMING SOON

$799,900

3 beds2 baths1,460 sq ft

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OPEN SUN, 1PM TO 4PM

$1,799,950

4 beds4 baths3,192 sq ft

19300 Singing Hls, Porter Ranch, CA 91326

Home values near 18815 Los Alimos St

Data from public records.

Address	Redfin Estimate
18847 Los Alimos St, Porter Ranch, CA 5 Beds \| 3 Baths \| 3004 Sq. Ft.	$1,392,584
18831 Los Alimos St, Porter Ranch, CA 5 Beds \| 3 Baths \| 2974 Sq. Ft.	$1,306,330

Address	Redfin Estimate
18841 Los Alimos St, Porter Ranch, CA 5 Beds \| 3.5 Baths \| 3004 Sq. Ft.	$1,341,874
18823 Los Alimos St, Porter Ranch, CA 5 Beds \| 3 Baths \| 3004 Sq. Ft.	$1,473,543

Address	Redfin Estimate
18837 Los Alimos St, Porter Ranch, CA 4 Beds \| 3 Baths \| 2456 Sq. Ft.	$1,299,399
18809 Los Alimos St, Los Angeles, CA 5 Beds \| 3 Baths \| 3004 Sq. Ft.	$1,407,248

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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 Northridge West, CA

Sale history for 18815 Los Alimos St

Tax history for 18815 Los Alimos St

Permits

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 91326

Home values near 18815 Los Alimos St

More real estate resources