Google street view image for 12663 Ralston Ave, Sylmar, CA 91342

Off market dec 1999 for $120K

$698,088

Est. refi paymentEst. refi $911/mo

•

1 ba

•

1,156

sq ft

12663 Ralston Ave, Sylmar, CA 91342

About this home

12663 Ralston Ave is a 1,156 square foot house on a 0.34 acre lot with 1 bedroom and 1 bathroom. - it last sold on December 10, 1999 for $120,000. Based on Redfin's Sylmar data, we estimate the home's value is $698,088.

Single-familyProperty Type

1947Year Built

0.34 acresLot Size

$604Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$698,088

$578K since sold in December 1999$8,000 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 12% lower than the average sale price ($793K) of 6 comparable homes.

SOLD MAY 8, 2026
$611,000
A
2 beds1 bath1,155 sq ft
15084 Nurmi St, Sylmar, CA 91342
SOLD SEP 4, 2026
$750,000
B
2 beds1 bath997 sq ft
14534 Sayre St, Sylmar, CA 91342
SOLD JAN 14, 2026
$808,000
C
2 beds1 bath872 sq ft
12659 Ralston Ave, Sylmar, CA 91342
SOLD SEP 18, 2026
$1,000,000
D
3 beds1 bath1,336 sq ft
12468 Ralston, Sylmar, CA 91342
SOLD JAN 15, 2026
$589,999
E
2 beds1 bath888 sq ft
15043 Oro Grande St, Sylmar, CA 91342
SOLD OCT 1, 2026
$1,000,000
F
3 beds1.5 baths1,012 sq ft
12473 Ralston, Sylmar, CA 91342

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Earn from this home

Sell

$643,175

Est. take-home

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Est. cash available

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Rent

$2,288/mo

Redfin rental estimate

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Market trends in Sylmar, CA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

100.0%

+0.0% MoM

Median sale price

$730K

$5K MoM

Avg. days on market

52d

12 days MoM

Recently sold homes

7 MoM

New listings for sale

NEW 28 HRS AGO
$1,190,000
4 beds3 baths2,833 sq ft
13870 Nurmi St, Sylmar, CA 91342
NEW 31 HRS AGO
$325,000
3 beds2 baths1,568 sq ft
13691 Gavina Ave #550, Sylmar, CA 91342
OPEN SUN, 12PM TO 4PM
$1,099,000
4 beds3 baths2,007 sq ft
13542 Polk, Sylmar, CA 91342
OPEN SUN, 2PM TO 4PM
$990,000
4 beds2 baths1,610 sq ft
13802 Montero Ave, Sylmar, CA 91342
OPEN SUN, 1PM TO 4PM
$749,947
5 beds3 baths2,098 sq ft
12634 Amboy Ave, Sylmar, CA 91342
$899,950
4 beds2 baths1,634 sq ft
11748 Remington St, Sylmar, CA 91342
$519,000
2 beds2 baths1,234 sq ft
13936 Olive Grove Ln, Sylmar, CA 91342
OPEN SUN, 12PM TO 4PM
$575,500
2 beds3 baths1,340 sq ft
12814 N Watt Ln Unit A, Sylmar, CA 91342
OPEN SUN, 12PM TO 4PM
$1,495,000
4 beds4 baths3,057 sq ft
15309 Larkspur St, Sylmar, CA 91342
$1,745,000
4 beds5 baths5,820 sq ft
13436 Bradley, Rancho Cascades, CA 91342
See all

Provided by Redfin

Sale history for 12663 Ralston Ave

Year

Property tax

Land + Additions

Assessment*

2025

$3,150 (+1.5%)

$150,488 + $84,574

$235,062

2024

$3,103 (+1.8%)

$147,538 + $82,927

$230,465

2023

$3,050 (+4.5%)

$144,646 + $81,301

$225,947

2022

$2,918 (+1.3%)

$141,810 + $79,707

$221,517

2021

$2,881 (−0.8%)

$139,030 + $78,145

$217,175

2020

$2,905 (+3.7%)

$136,304 + $76,613

$212,917

2019

$2,802 (+5.9%)

$134,907 + $75,828

$210,735

2018

$2,645 (+2.2%)

$132,262 + $74,342

$206,604

2017

$2,588 (+2.6%)

$127,127 + $71,456

$198,583

2016

$2,522 (+1.4%)

$127,127 + $71,456

$198,583

2015

$2,487 (−0.8%)

$124,635 + $70,055

$194,690

2014

$2,508 (−1.3%)

$120,359 + $67,652

$188,011

2012

$2,541 (+3.0%)

$119,816 + $67,347

$187,163

2011

$2,466 (−1.0%)

$117,467 + $66,027

$183,494

2010

$2,492 (+3.8%)

$115,164 + $64,733

$179,897

2009

$2,402 (+4.2%)

$114,304 + $64,250

$178,554

2008

$2,305

$114,576 + $64,403

$178,979

Tax history for 12663 Ralston Ave

Year

Property tax

Land + Additions

Assessment*

2025

$3,150 (+1.5%)

$150,488 + $84,574

$235,062

2024

$3,103 (+1.8%)

$147,538 + $82,927

$230,465

2023

$3,050 (+4.5%)

$144,646 + $81,301

$225,947

2022

$2,918 (+1.3%)

$141,810 + $79,707

$221,517

2021

$2,881 (−0.8%)

$139,030 + $78,145

$217,175

2020

$2,905 (+3.7%)

$136,304 + $76,613

$212,917

2019

$2,802 (+5.9%)

$134,907 + $75,828

$210,735

2018

$2,645 (+2.2%)

$132,262 + $74,342

$206,604

2017

$2,588 (+2.6%)

$127,127 + $71,456

$198,583

2016

$2,522 (+1.4%)

$127,127 + $71,456

$198,583

2015

$2,487 (−0.8%)

$124,635 + $70,055

$194,690

2014

$2,508 (−1.3%)

$120,359 + $67,652

$188,011

2012

$2,541 (+3.0%)

$119,816 + $67,347

$187,163

2011

$2,466 (−1.0%)

$117,467 + $66,027

$183,494

2010

$2,492 (+3.8%)

$115,164 + $64,733

$179,897

2009

$2,402 (+4.2%)

$114,304 + $64,250

$178,554

2008

$2,305

$114,576 + $64,403

$178,979

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

Permits

Aug 2, 2005 • Final

Bldg-addition

Construct a study room addition to the building.

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: 1,156
# of Units: 1
Legal Description: TRACT # 5909 SE 46 FT OF NW 92 FT OF LOT 21

Lot Information
# of Buildings: 1
Land Sq. Ft: 14,613
Legal Lot Number: 21
Municipality Name: LOS ANGELES
Acres: 0.3355
Depth Footage: 318
Front Footage: 46
Zoning Code: LAR1
County Use Description: SINGLE FAMILY RESID

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 1
Baths: 1.0
Sq. Ft.: 1,156
Stories: —
Lot Size: 0.34 acres
Style: Single Family Residential
Year Built: 1947
Year Renovated: 1974
County: Los Angeles County
APN: 2506034027

Home facts updated by county records on Oct 6, 2026

Around this home

Schools

Dyer Street Elementary School

Public K-5 • Assigned • 0.5mi

7/10

Olive Vista Middle School

Public 6-8 • Assigned • 0.9mi

7/10

Sylmar Biotech Health & Engineering Magnet

Public 9-12 • Assigned • 1.1mi

6/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

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 days ago • Los Angeles
Phil Robinson
Redfin agent
58 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,...
1 month ago • Los Angeles
Peter Santos
Redfin Premier agent
86 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, 21 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)

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

$664,000 – $803,000

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New listings for sale in 91342

NEW 28 HRS AGO

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NEW 31 HRS AGO

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13691 Gavina Ave #550, Sylmar, CA 91342

OPEN SUN, 12PM TO 4PM

$1,099,000

4 beds3 baths2,007 sq ft

13542 Polk, Sylmar, CA 91342

OPEN SUN, 2PM TO 4PM

$990,000

4 beds2 baths1,610 sq ft

13802 Montero Ave, Sylmar, CA 91342

OPEN SUN, 1PM TO 4PM3D WALKTHROUGH

$749,947

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12634 Amboy Ave, Sylmar, CA 91342

$899,950

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11748 Remington St, Sylmar, CA 91342

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13936 Olive Grove Ln, Sylmar, CA 91342

OPEN SUN, 12PM TO 4PM

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12814 N Watt Ln Unit A, Sylmar, CA 91342

OPEN SUN, 12PM TO 4PM3D WALKTHROUGH

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Home values near 12663 Ralston Ave

Data from public records.

Address	Redfin Estimate
12658 Ralston Ave, Sylmar, CA 4 Beds \| 2 Baths \| 2750 Sq. Ft.	$952,776
12669 Ralston Ave, Sylmar, CA 2 Beds \| 1 Baths \| 950 Sq. Ft.	$629,508

Address	Redfin Estimate
12668 Ralston Ave, Sylmar, CA 4 Beds \| 2 Baths \| 2207 Sq. Ft.	$982,789
12659 Ralston Ave, Sylmar, CA 2 Beds \| 1 Baths \| 872 Sq. Ft.	$846,883

Address	Redfin Estimate
12672 Ralston Ave, Sylmar, CA 4 Beds \| 2 Baths \| 1696 Sq. Ft.	$839,287
12653 Ralston Ave, Sylmar, CA 3 Beds \| 2 Baths \| 1541 Sq. Ft.	$884,103

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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 Sylmar, CA

Sale history for 12663 Ralston Ave

Tax history for 12663 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 12663 Ralston Ave

More real estate resources