19251 CASTLEBAY Ln, Porter Ranch, CA 91326

Off Market Dec 2004 for $660K

$1,236,492

Est. refi paymentEst. refi $4,409/mo

•

— ba

•

2,492

sq ft

19251 CASTLEBAY Ln, Porter Ranch, CA 91326

About this home

Single-familyProperty Type

1966Year Built

0.26 acresLot Size

$496Est. Price/Sq.Ft.

2 car garageParking

Listed by Richard Collins •DRE #00649479 • RE/MAX One

Bought with

Redfin checked: a minute ago

•Source:CRMLS #FR1951342

Redfin Estimate

$1,236,492

$576K since sold in December 2004$2,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.6% lower than the average sale price ($1.30M) of 6 comparable homes.

SOLD AUG 19, 2026
$1,231,600
A
3 beds3 baths2,492 sq ft
12251 Derwent Ave, Porter Ranch, CA 91326
SOLD JUL 2, 2026
$1,389,000
B
4 beds3 baths2,618 sq ft
19238 Castlebay Ln, Porter Ranch, CA 91326
Equity Union
SOLD MAY 11, 2026
$1,300,000
C
4 beds3 baths2,450 sq ft
18931 Kinbrace St, Porter Ranch, CA 91326
SOLD MAR 12, 2026
$1,275,000
D
3 beds3 baths3,068 sq ft
19201 Castlebay Ln, Porter Ranch, CA 91326
SOLD MAR 18, 2026
$1,280,000
E
4 beds3 baths2,543 sq ft
12115 Braemore Pl, Porter Ranch, CA 91326
SOLD DEC 3, 2025
$1,300,000
F
3 beds3 baths2,450 sq ft
12110 Braemore Pl, Porter Ranch, CA 91326

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Earn from this home

Sell

$956,424

Est. take-home

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Refinance

Est. cash available

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Rent

$5,611/mo

Redfin rental estimate

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Market trends in Porter Ranch, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.2%

+0.4% MoM

Median sale price

$1.3M

$69K MoM

Avg. days on market

43d

2 days MoM

Recently sold homes

9 MoM

New listings for sale

OPEN SUN, 2PM TO 5PM
$2,150,000
5 beds6 baths4,029 sq ft
12316 N Finch Ct, Porter Ranch, CA 91326
OPEN SAT, 11AM TO 3PM
$1,249,950
4 beds3 baths2,224 sq ft
18593 Asuncion St, Porter Ranch, CA 91326
OPEN SUN, 1PM TO 4PM
$775,000
3 beds3 baths1,697 sq ft
19169 Index St #1, Porter Ranch, CA 91326
NEW 18 HRS AGO
$1,225,000
4 beds2 baths1,943 sq ft
18824 Dukas St, Porter Ranch, CA 91326
$830,000
2 beds3 baths1,490 sq ft
11468 Oakford, Northridge, CA 91326
SHORT SALE
$2,499,999
4 beds5 baths4,802 sq ft
20513 W Birmingham Way, Porter Ranch, CA 91326
OPEN SAT, 1PM TO 3PM
$1,248,000
5 beds4.5 baths2,154 sq ft
10856 Topeka Dr, Northridge, CA 91326
OPEN FRI, 11AM TO 2PM
$1,695,000
7 beds4 baths3,168 sq ft
19230 Cheyenne St, Porter Ranch, CA 91326
$1,299,000
4 beds3 baths2,869 sq ft
19377 Germain St, Porter Ranch, CA 91326
OPEN SAT, 1PM TO 4PM
$1,699,000
4 beds4 baths3,711 sq ft
20356 Via Cellini, Northridge, CA 91326
See all

Provided by Redfin

Sale history for 19251 CASTLEBAY Ln

Year

Property tax

Land + Additions

Assessment*

2025

$11,371 (+1.0%)

$557,556 + $362,411

$919,967

2024

$11,262 (+1.9%)

$557,556 + $362,411

$919,967

2023

$11,047 (+4.8%)

$546,624 + $355,305

$901,929

2022

$10,541 (+1.3%)

$535,906 + $348,339

$884,245

2021

$10,405 (−1.0%)

$525,399 + $341,509

$866,908

2020

$10,507 (+6.9%)

$515,098 + $334,813

$849,911

2019

$9,831 (+6.6%)

$509,817 + $331,380

$841,197

2018

$9,218 (+0.3%)

$486,400 + $315,600

$802,000

2017

$9,192 (+0.5%)

$453,000 + $294,000

$747,000

2016

$9,145

$453,000 + $294,000

$747,000

2015

$9,147 (−2.3%)

$453,000 + $294,000

$747,000

2014

$9,358 (+28.1%)

$453,000 + $294,000

$747,000

2012

$7,304 (−6.5%)

$338,000 + $219,000

$557,000

2011

$7,814 (−1.8%)

$338,000 + $219,000

$557,000

2010

$7,957 (+4.0%)

$367,000 + $238,600

$605,600

2009

$7,655 (−11.8%)

$367,000 + $238,600

$605,600

2008

$8,682

$367,000 + $238,600

$605,600

Tax history for 19251 CASTLEBAY Ln

Year

Property tax

Land + Additions

Assessment*

2025

$11,371 (+1.0%)

$557,556 + $362,411

$919,967

2024

$11,262 (+1.9%)

$557,556 + $362,411

$919,967

2023

$11,047 (+4.8%)

$546,624 + $355,305

$901,929

2022

$10,541 (+1.3%)

$535,906 + $348,339

$884,245

2021

$10,405 (−1.0%)

$525,399 + $341,509

$866,908

2020

$10,507 (+6.9%)

$515,098 + $334,813

$849,911

2019

$9,831 (+6.6%)

$509,817 + $331,380

$841,197

2018

$9,218 (+0.3%)

$486,400 + $315,600

$802,000

2017

$9,192 (+0.5%)

$453,000 + $294,000

$747,000

2016

$9,145

$453,000 + $294,000

$747,000

2015

$9,147 (−2.3%)

$453,000 + $294,000

$747,000

2014

$9,358 (+28.1%)

$453,000 + $294,000

$747,000

2012

$7,304 (−6.5%)

$338,000 + $219,000

$557,000

2011

$7,814 (−1.8%)

$338,000 + $219,000

$557,000

2010

$7,957 (+4.0%)

$367,000 + $238,600

$605,600

2009

$7,655 (−11.8%)

$367,000 + $238,600

$605,600

2008

$8,682

$367,000 + $238,600

$605,600

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

Public record

Public record
Permits

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

0.26 Acres

Year renovated

1966

Sq. Ft.

2,492

Year built

1966

Style

Single Family Residential

County

Los Angeles County

APN

2820008004

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 28, 2026.

Property details

Parking

Parking / Garage Information
Attached Garage
# of Garage Spaces: 2
Garage Door Opener, RV Access/Parking
Has Parking

Interior

Laundry Information
Has Laundry
Electric Dryer Hookup, Gas Dryer Hookup, In Garage

Kitchen Information
Appliances: Built-In, Double Oven, Dishwasher, Electric Cooking, Free Standing, Gas Cooking, Garbage Disposal, Range
Has Appliances
Area, Formal Dining Room, In Kitchen

Cooling Information
Central
Has Cooling

Room Information
Family Room

Fireplace Information
Gas, Living Room
Has Fireplace

Flooring Information
Carpet, Vinyl

Heating Information
Natural Gas
Has Heating

Interior Features
Spa Features: Private
Has Spa

Exterior

Exterior Information
Roof: Clay, Spanish Tile
Fencing: Blockwall, Chain Link, Wrought Iron
Has Fence
Construction Materials: Stucco

Foundation Information
Foundation Details: Concrete Slab

Exterior Features
Patio And Porch Features: Concrete
Has Patio
Pool Features: Private
Has Pool
Has Sprinklers

Lot Information
Lot Features: Lot Shape-Rectangular, Paved, Sprinklers In Front

Property Information
Common Walls: No Common Walls
Living Area Source: Assessor's Data
Parcel Number: 2820008004

Utilities

Utilities Information
Sewer Available
Water Source: District/Public

Location

Neighborhood Information
Community Features: Sidewalks

Location Information
Latitude: 34.29329700
Longitude: -118.55341000
Zoning: LARS

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,492
Stories: —
Lot Size: 0.26 acres
Style: Single Family Residential
Year Built: 1966
Year Renovated: 1966
County: Los Angeles County
APN: 2820008004

Home facts updated by county records on Aug 28, 2026

Other

Listing Information
Days Active in MLS: 113

Listing Agent Information
List Agent First Name: Richard
List Agent Last Name: Collins

Listing Office Information
List Office Name: RE/MAX Olson & Associa

Around this home

Schools

Castlebay Lane Charter School

Charter K-5 • Assigned • 0.3mi

10/10

Robert Frost Middle School

Public 6-8 • Assigned • 2.4mi

9/10

Valley Academy Of Arts And Sciences

Public 9-12 • Assigned • 3.7mi

7/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Porter Ranch is best known for its upscale homes and scenic views, offering a luxurious suburban lifestyle. The area features well-planned communities, abundant parks, and access to hiking trails, making it ideal for those who enjoy outdoor...
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Redfin Premier agent
348 deals
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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,...
3 days ago • Los Angeles
Peter Santos
Redfin Premier agent
83 deals
Was this helpful?
LA's real estate market stays a top-tier profit machine through the mid point of26! Strong demand, tight inventory, and the city's allure drive steady 3-7% appreciation. High equity and robust rents make it ideal for long-term investors seeking...
2 months ago • Los Angeles
Thomas Chorley
Redfin Premier agent
Was this helpful?

Climate risks

1/10 Flood Factor

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

7/10 Fire Factor

26% chance of being in a wildfire in next 30 years

5/10 Heat Factor

5 days above 100° expected this year, 14 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

5/10 Air Factor

7 unhealthy days expected this year, 9 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

$1.18M – $1.42M

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Nearby similar homes

OPEN SAT, 11AM TO 3PM

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New listings for sale in 91326

OPEN SUN, 2PM TO 5PM

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OPEN SAT, 11AM TO 3PM

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4 beds3 baths2,224 sq ft

18593 Asuncion St, Porter Ranch, CA 91326

OPEN SUN, 1PM TO 4PM

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19169 Index St #1, Porter Ranch, CA 91326

NEW 18 HRS AGO

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$830,000

2 beds3 baths1,490 sq ft

11468 Oakford, Northridge, CA 91326

SHORT SALE

$2,499,999

4 beds5 baths4,802 sq ft

20513 W Birmingham Way, Porter Ranch, CA 91326

OPEN SAT, 1PM TO 3PM3D WALKTHROUGH

$1,248,000

5 beds4.5 baths2,154 sq ft

10856 Topeka Dr, Northridge, CA 91326

OPEN FRI, 11AM TO 2PM

$1,695,000

7 beds4 baths3,168 sq ft

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Home values near 19251 CASTLEBAY Ln

Data from public records.

Address	Redfin Estimate
19271 Castlebay Lane, Porter Ranch, CA 4 Beds \| 4 Baths \| 2612 Sq. Ft.	$1,249,657
19243 Castlebay Lane, Porter Ranch, CA 5 Beds \| 3 Baths \| 2310 Sq. Ft.	$1,198,178

Address	Redfin Estimate
19265 Castlebay Lane, Porter Ranch, CA 3 Beds \| 3 Baths \| 2003 Sq. Ft.	$1,085,083
19235 Castlebay Lane, Porter Ranch, CA 4 Beds \| 3 Baths \| 2465 Sq. Ft.	$1,158,637

Address	Redfin Estimate
19257 Castlebay Lane, Porter Ranch, CA 4 Beds \| 3 Baths \| 2450 Sq. Ft.	$1,236,455
19227 Castlebay Lane, Porter Ranch, CA 4 Beds \| 3 Baths \| 2378 Sq. Ft.	$1,327,309

Property information provided by CRMLS when last listed in 2004. This data may not match . Learn more.

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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 Porter Ranch, CA

Sale history for 19251 CASTLEBAY Ln

Tax history for 19251 CASTLEBAY Ln

Public record

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 19251 CASTLEBAY Ln

More real estate resources