Google street view image for 12439 Ralston Ave, Sylmar, CA 91342

Off market sep 2003 for $283K

$768,661

Est. refi paymentEst. refi $1,920/mo

•

1,200

sq ft

12439 Ralston Ave, Sylmar, CA 91342

About this home

12439 Ralston Ave is a 1,200 square foot house on a 0.36 acre lot with 4 bedrooms and 2 bathrooms. - it last sold on September 29, 2003 for $283,000. Based on Redfin's Sylmar data, we estimate the home's value is $768,661.

Single-familyProperty Type

1915Year Built

0.36 acresLot Size

$641Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$768,661

$486K since sold in September 2003$18K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 9.2% lower than the average sale price ($847K) of 6 comparable homes.

SOLD AUG 31, 2026
$935,000
A
4 beds2 baths1,129 sq ft
523 Orange Grv, San Fernando, CA 91340
Assurance Properties
SOLD SEP 18, 2026
$1,000,000
B
3 beds1 bath1,336 sq ft
12468 Ralston, Sylmar, CA 91342
SOLD OCT 1, 2026
$1,000,000
C
3 beds1.5 baths1,012 sq ft
12473 Ralston, Sylmar, CA 91342
SOLD SEP 4, 2026
$660,000
D
3 beds2 baths1,329 sq ft
14992 Oro Grande St, Sylmar, CA 91342
SOLD SEP 18, 2026
$780,000
E
3 beds2 baths1,556 sq ft
13023 Woodcock, Sylmar, CA 91342
SOLD NOV 6, 2026
$705,000
F
3 beds2 baths1,294 sq ft
448 Fermoore, San Fernando, CA 91340

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell

$648,927

Est. take-home

List your home with Redfin and save $3,843

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,399/mo

Redfin rental estimate

List your home for rent

Market trends in Sylmar, CA

Last updated October 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-list price

99.2%

0.8% MoM

Median sale price

$730K

$349 MoM

Avg. days on market

60d

8 days MoM

Recently sold homes

2 MoM

New listings for sale

OPEN TODAY, 12PM TO 3PM
$225,000
2 beds2 baths1,200 sq ft
12401 Filmore St #212, Sylmar, CA 91342
OPEN SUN, 1PM TO 3PM
$1,050,000
4 beds3.5 baths2,745 sq ft
13615 Glenoaks Blvd, Rancho Cascades, CA 91342
$1,295,000
7 beds5 baths3,613 sq ft
11714 Remington, Sylmar, CA 91342
OPEN TODAY, 1PM TO 3PM
$459,000
2 beds1 bath950 sq ft
12452 Ralston #6, Sylmar, CA 91342
OPEN TODAY, 12PM TO 3PM
$725,000
3 beds1 bath1,240 sq ft
13373 Herron, Sylmar, CA 91342
$319,000
Studio— baths1,596 sq ft
13691 Gavina Ave #642, Sylmar, CA 91342
3D WALKTHROUGH
$375,000
2 beds2 baths864 sq ft
13126 Bromont Ave #4, Sylmar, CA 91342
OPEN TODAY, 11AM TO 1PM
$799,999
3 beds1 bath1,056 sq ft
14546 Lyle, Sylmar, CA 91342
OPEN TODAY, 10AM TO 4PM
$995,000
2 beds1 bath1,064 sq ft
11192 Osborne St, Sylmar, CA 91342
$2,390,000
10 beds5 baths3,479 sq ft
12643 Norris Ave, Sylmar, CA 91342
See all

Provided by Redfin

Sale history for 12439 Ralston Ave

Year

Property tax

Land + Additions

Assessment*

2025

$6,353 (+2.0%)

$311,332 + $206,735

$518,067

2024

$6,228 (+1.9%)

$305,228 + $202,682

$507,910

2023

$6,109 (+4.8%)

$299,244 + $198,708

$497,952

2022

$5,829 (+1.3%)

$293,377 + $194,812

$488,189

2021

$5,755 (−0.9%)

$287,625 + $190,993

$478,618

2020

$5,810 (+4.0%)

$281,986 + $187,249

$469,235

2019

$5,585 (+1.9%)

$279,095 + $185,329

$464,424

2018

$5,482 (+2.3%)

$273,623 + $181,696

$455,319

2017

$5,361 (+2.4%)

$262,999 + $174,642

$437,641

2016

$5,235 (+8.1%)

$262,999 + $174,642

$437,641

2015

$4,842 (+6.5%)

$257,843 + $171,218

$429,061

2014

$4,547 (+20.3%)

$253,000 + $109,000

$362,000

2012

$3,779 (+1.3%)

$216,000 + $93,000

$309,000

2011

$3,730 (+9.9%)

$201,300 + $86,700

$288,000

2010

$3,395 (+4.0%)

$201,300 + $86,700

$288,000

2009

$3,265 (−19.9%)

$179,100 + $77,200

$256,300

2008

$4,077

$179,100 + $77,200

$256,300

Tax history for 12439 Ralston Ave

Year

Property tax

Land + Additions

Assessment*

2025

$6,353 (+2.0%)

$311,332 + $206,735

$518,067

2024

$6,228 (+1.9%)

$305,228 + $202,682

$507,910

2023

$6,109 (+4.8%)

$299,244 + $198,708

$497,952

2022

$5,829 (+1.3%)

$293,377 + $194,812

$488,189

2021

$5,755 (−0.9%)

$287,625 + $190,993

$478,618

2020

$5,810 (+4.0%)

$281,986 + $187,249

$469,235

2019

$5,585 (+1.9%)

$279,095 + $185,329

$464,424

2018

$5,482 (+2.3%)

$273,623 + $181,696

$455,319

2017

$5,361 (+2.4%)

$262,999 + $174,642

$437,641

2016

$5,235 (+8.1%)

$262,999 + $174,642

$437,641

2015

$4,842 (+6.5%)

$257,843 + $171,218

$429,061

2014

$4,547 (+20.3%)

$253,000 + $109,000

$362,000

2012

$3,779 (+1.3%)

$216,000 + $93,000

$309,000

2011

$3,730 (+9.9%)

$201,300 + $86,700

$288,000

2010

$3,395 (+4.0%)

$201,300 + $86,700

$288,000

2009

$3,265 (−19.9%)

$179,100 + $77,200

$256,300

2008

$4,077

$179,100 + $77,200

$256,300

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

Permits

Aug 18, 2017 • Final

Electrical

Upgrade the main electrical service to 200 amps.

Electrical

Mar 20, 2008 • Final

Bldg-addition

Construct an addition between an existing single-family home and carport to include two bedrooms and a bathroom. Install a breezeway, a patio cover, and a new window in an existing adjoining bedroom.

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

Exterior

Property Information
Subdivision Name: 5909
Living Sq. Ft: 1,200
# of Units: 1
Legal Description: TRACT # 5909 NW 50 FT OF LOT 36

Lot Information
# of Buildings: 1
Land Sq. Ft: 15,882
Legal Lot Number: 36
Municipality Name: LOS ANGELES
Acres: 0.3646
Depth Footage: 318
Front Footage: 50
Zoning Code: LAR1
County Use Description: SINGLE FAMILY RESID

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 1,200
Stories: —
Parking Spaces: —
Basement: No
Accessible: No
Lot Size: 0.36 acres
Style: Single Family Residential
Year Built: 1915
Year Renovated: 1956
County: Los Angeles County
APN: 2507006030
HOA Dues: —
Garage: No
Features: —

Home facts updated by owner on Jun 15, 2026

Around this home

Schools

K - 12
Preschool & daycare

Dyer Street Elementary School

Public K-5 • Assigned • 0.4mi

7/10

Olive Vista Middle School

Public 6-8 • Assigned • 1.0mi

7/10

Sylmar Biotech Health & Engineering Magnet

Public 9-12 • Assigned • 1.0mi

6/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The Los Angeles market is becoming more balanced, with buyers gaining a little more negotiating room as homes take longer to sell and price reductions become more common. Well-priced homes in desirable neighborhoods can still attract strong interest....
2 weeks ago • Los Angeles
Sang Ur
Redfin Premier agent
124 deals
Was this helpful?
LA real estate remains resilient, with long-term demand, limited desirable inventory, and strong neighborhood-by-neighborhood opportunities. For savvy buyers and sellers, the current market creates opportunities to negotiate strategically and build...
3 weeks ago • Los Angeles
Phil Robinson
Redfin agent
60 deals
Was this helpful?
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,...
2 months ago • Los Angeles
Peter Santos
Redfin Premier agent
87 deals
Was this helpful?

Climate risks

1/10 Flood Factor

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

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

6/10 Heat Factor

7 days above 100° expected this year, 20 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

Sylmar, CA • 91342

Average low and high temperatures (°F)

67°

52°

70°

53°

74°

53°

72°

52°

77°

55°

83°

58°

88°

62°

92°

65°

86°

64°

79°

58°

71°

54°

70°

53°

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

10 hrs

6.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$731,000 – $884,000

Reach more buyers when you sell with Redfin. Save up to $7,687 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

$709,900

4 beds3 baths2,032 sq ft

12642 Ralstonn Ave #1, Sylmar, CA 91342

Open-concept layout • Large side yard • Versatile loft

$795,000

3 beds3 baths1,454 sq ft

11954 Edgecliff Ave, Sylmar, CA 91342

Panoramic views • Exceptional privacy • Spacious kitchen

$615,000

4 beds2 baths1,296 sq ft

14976 Ryan St, Sylmar, CA 91342

7,202 sq ft lot • 2 garage spots • Built 1955

OPEN TODAY, 11AM TO 1PM

$799,999

3 beds1 bath1,056 sq ft

14546 Lyle, Sylmar, CA 91342

New electrical panel • Complete rewire • Open concept kitchen

$824,900

3 beds2.5 baths1,570 sq ft

12200 Canyon Hill Ave, Sylmar, CA 91342

Corner lot • Tile flooring • Cozy fireplace

Fiv Realty Co.

$750,000

4 beds2 baths1,300 sq ft

1319 Hollister, San Fernando, CA 91340

Multi-unit property • Two separate units • Gated frontage

New listings for sale in 91342

OPEN TODAY, 12PM TO 3PM

$225,000

2 beds2 baths1,200 sq ft

12401 Filmore St #212, Sylmar, CA 91342

New kitchen • 3 mini-splits • Dual-pane windows

OPEN SUN, 1PM TO 3PM

$1,050,000

4 beds3.5 baths2,745 sq ft

13615 Glenoaks Blvd, Rancho Cascades, CA 91342

Circular driveway • Double door entry • Formal living room

$1,295,000

7 beds5 baths3,613 sq ft

11714 Remington, Sylmar, CA 91342

Two level house • Separate entrance • South facing balcony

OPEN TODAY, 1PM TO 3PM

$459,000

2 beds1 bath950 sq ft

12452 Ralston #6, Sylmar, CA 91342

Remodeled townhome • Private patio • Large swimming pool

OPEN TODAY, 12PM TO 3PM

$725,000

3 beds1 bath1,240 sq ft

13373 Herron, Sylmar, CA 91342

Spacious lot • Wood flooring • Wood-beamed ceilings

$319,000

Studio— baths1,596 sq ft

13691 Gavina Ave #642, Sylmar, CA 91342

2 parking spots • Community pool • Built 1988

3D WALKTHROUGH

$375,000

2 beds2 baths864 sq ft

13126 Bromont Ave #4, Sylmar, CA 91342

Ample cabinetry • En-suite bathroom • Community amenities

OPEN TODAY, 11AM TO 1PM

$799,999

3 beds1 bath1,056 sq ft

14546 Lyle, Sylmar, CA 91342

New electrical panel • Complete rewire • Open concept kitchen

OPEN TODAY, 10AM TO 4PM

$995,000

2 beds1 bath1,064 sq ft

11192 Osborne St, Sylmar, CA 91342

Lake view terrace • Usable land • Equestrian trails

Home values near 12439 Ralston Ave

Data from public records.

Address	Redfin Estimate
12440 Ralston Avenue, Sylmar, CA 3 Beds \| 2 Baths \| 1052 Sq. Ft.	$747,430
12454 Ralston Avenue Unit 6, Sylmar, CA 2 Beds \| 1 Baths \| 950 Sq. Ft.	$408,359
12452 Ralston Avenue Unit 3, Sylmar, CA 3 Beds \| 2.5 Baths \| 1286 Sq. Ft.	$517,273
12452 Ralston Unit 6, Sylmar, CA 2 Beds \| 1 Baths \| 950 Sq. Ft.	$461,106
12435 Ralston Avenue, Sylmar, CA 2 Beds \| 1 Baths \| 890 Sq. Ft.	$671,735
12451 Ralston Avenue Unit B, Sylmar, CA 3 Beds \| 3 Baths \| 1435 Sq. Ft.	$576,346
12453 Ralston Avenue Unit B, Sylmar, CA 3 Beds \| 3 Baths \| 1435 Sq. Ft.	$537,661

Address	Redfin Estimate
12454 Ralston Avenue Unit 3, Sylmar, CA 3 Beds \| 2.5 Baths \| 1286 Sq. Ft.	$388,952
12452 Ralston Avenue Unit 1, Sylmar, CA 2 Beds \| 1 Baths \| 950 Sq. Ft.	$450,768
12452 Ralston Avenue Unit 4, Sylmar, CA 3 Beds \| 2.5 Baths \| 1286 Sq. Ft.	$500,762
12447 Ralston Avenue, Sylmar, CA 3 Beds \| 2 Baths \| 1308 Sq. Ft.	$679,846
12437 Ralston Avenue, Sylmar, CA 5 Beds \| 3 Baths \| 2293 Sq. Ft.	$905,499
12451 Ralston Avenue Unit C, Sylmar, CA 3 Beds \| 2.5 Baths \| 1435 Sq. Ft.	$552,937
12453 Ralston Avenue Unit C, Sylmar, CA 3 Beds \| 3 Baths \| 1435 Sq. Ft.	$556,254

Address	Redfin Estimate
12454 Ralston Avenue Unit 4, Sylmar, CA 3 Beds \| 3 Baths \| 1286 Sq. Ft.	$416,160
12452 Ralston Avenue Unit 2, Sylmar, CA 3 Beds \| 3 Baths \| 1302 Sq. Ft.	$457,480
12452 Ralston Avenue Unit 5, Sylmar, CA 3 Beds \| 3 Baths \| 1302 Sq. Ft.	$513,872
12427 Ralston Avenue, Sylmar, CA 3 Beds \| 1 Baths \| 1166 Sq. Ft.	$771,300
12451 Ralston Unit A, Sylmar, CA 3 Beds \| 3 Baths \| 1435 Sq. Ft.	$583,341
12453 Ralston Avenue Unit A, Sylmar, CA 3 Beds \| - Baths \| 1435 Sq. Ft.	$486,972
12455 Ralston Avenue Unit A, Sylmar, CA 3 Beds \| 3 Baths \| 1435 Sq. Ft.	$584,911

This data may not show owner updates. Learn more.

Download the Redfin App on the Apple App Store

Download the Redfin App from the Google Play Store

Join us

Become an Agent

Get referrals

Careers

Find homes faster

About us

Find us

Subsidiaries

Affiliated Business

Countries

United States

Canada

Updated September 2025: By searching, you agree to the Terms of Use, and Privacy Policy.

Do not sell or share my personal information.

REDFIN and all REDFIN variants, WALK SCORE, and the R logos, are trademarks of Redfin Corporation, registered or pending in the USPTO.

Redfin Brokerage Licenses

California DRE #01521930

Redfin is licensed to do business in New York as Redfin Real Estate. NY Standard Operating Procedures

New Mexico Real Estate Licenses

TREC: Info About Brokerage Services, Consumer Protection Notice

All mortgage lending products and information are provided by Rocket Mortgage, LLC | NMLS #3030; www.NMLSConsumerAccess.org. Licensed in 50 states. This site is not authorized by the New York State Department of Financial Services for mortgage solicitation or loan applications activities related to properties located in the State of New York.

Redfin Corporation is an affiliated business of Rocket Limited Partnership. Each company, and their subsidiaries, are separate legal entities operated and managed through its own management and governance structures.

If you are using a screen reader, or having trouble reading this website, please call Redfin Customer Support for help at 1-844-759-7732.

REDFIN IS COMMITTED TO AND ABIDES BY THE FAIR HOUSING ACT AND EQUAL OPPORTUNITY ACT. READ REDFIN'S FAIR HOUSING POLICY AND THE NEW YORK STATE FAIR HOUSING NOTICE.

GreatSchools Ratings provided by GreatSchools.org.

90027 homes for sale
91011 homes for sale
90049 homes for sale
90505 homes for sale
90210 homes for sale

Houses for rent in Los Angeles	Agents near me	Irvine, CA homes for sale	Los Angeles Housing Market
Houses for sale near me	San Diego, CA homes for sale	Fremont, CA homes for sale
Land for sale near me	San Francisco, CA homes for sale	Sacramento, CA homes for sale
Open Houses near me	Los Angeles, CA homes for sale	Los Angeles Property Records
Condos for sale near me	San Jose, CA homes for sale	CA New Listings

Pasadena homes for sale
Long Beach homes for sale
Glendale homes for sale

About this home

Redfin Estimate

Earn from this home

Market trends in Sylmar, CA

Sale history for 12439 Ralston Ave

Tax history for 12439 Ralston Ave

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 91342

Home values near 12439 Ralston Ave

More real estate resources