OFF MARKET

Off market dec 2018 for $860K

$1,205,500

Est. refi paymentEst. refi $5,718/mo

•

1,956

sq ft

503 Royce St, Altadena, CA 91001

About this home

LIVE IN THE MAIN HOUSE & RENT THE GUESTHOUSE! Charming 1920's Spanish style home w/ guest house nestled in the beautiful foothill neighborhood of Altadena. Main house is 3 bd, 3 ba w/ office/nursery. Guest House is 1bd 1ba. There is also a large shed with patio suitable for an office. 9 fruit trees and a fabulous avocado tree grace the 10,000 sf lot, creating private & beautiful spaces for each home. Partially remodeled in 2014, the main house has a 2 car garage, central air, stainless steel appliances, granite countertops, generous cabinet space, laminate floors & indoor washer/dryer. An open floor plan kitchen-dining area opens from French doors to a private fenced patio for al fresco dining. Master suite features an on suite bathroom, walk-in closet, office/nursery & also opens to the patio. A second bedroom & guest bath are on the main floor & the third bed and bath upstairs. Storage in attic, over garage and California basement. Ideally located!

Single-familyProperty Type

1926Year Built

9,958 sq ftLot Size

$616Est. Price/Sq.Ft.

2 garage spacesParking

Listed by Andres Monsalve •DRE #01352113 • Realty Source Incorporated

•818-245-5711 (agent)

•andres.monsalve@camoves.com (agent)

Bought with Maria Turner •DRE #01991781 • Dilbeck Real Estate

Redfin checked: 2 minutes ago

•Source:TheMLS #18-397360

Redfin Estimate

$1,205,500

$345K since sold in December 2018$51K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5.2% lower than the average sale price ($1.27M) of 6 comparable homes.

SOLD OCT 21, 2026
$1,400,000
A
3 beds3 baths1,909 sq ft
813 Mountain Vw, Altadena, CA 91001
SOLD OCT 5, 2026
$1,269,000
B
3 beds2 baths1,515 sq ft
722 Royce St, Altadena, CA 91001
COMPASS
SOLD MAY 1, 2026
$1,585,000
C
3 beds3 baths1,694 sq ft
585 Mountain View St, Altadena, CA 91001
SOLD JUN 12, 2026
$1,100,000
D
4 beds2 baths1,586 sq ft
524 Mountain Vw, Altadena, CA 91001
SOLD SEP 25, 2026
$1,180,000
E
3 beds2 baths1,791 sq ft
2070 El Sereno, Pasadena, CA 91103
Infinite Sun Realty
SOLD JUL 8, 2026
$1,097,000
F
3 beds2 baths1,288 sq ft
2967 Casitas, Altadena, CA 91001

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

Earn from this home

Sell

$562,111

Est. take-home

List your home with Redfin and save $6,028

Refinance

Est. cash available

Get cash now or lower your monthly rate

Market trends in 91001, CA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

102.5%

0.1% MoM

Median sale price

$1.6M

$31K MoM

Avg. days on market

45d

5 days MoM

Recently sold homes

0 MoM

New listings for sale

$800,000
2 beds1 bath1,016 sq ft
1970 Allen Ave, Altadena, CA 91001
$2,799,000
7 beds6 baths3,500 sq ft
715 Devirian Pl, Altadena, CA 91001
$1,498,000
3 beds2 baths1,823 sq ft
2120 Roosevelt, Altadena, CA 91001
$1,278,000
3 beds3 baths1,431 sq ft
949 Dolores, Altadena, CA 91001
Coldwell Banker-Campbell Rltrs
$859,000
3 beds2 baths1,140 sq ft
135 W Woodbury, Altadena, CA 91001
See all

Provided by Redfin

Sale history for 503 Royce St

Date

Event

Price

Public Records

Dec 7, 2018

Sold

$875,000

$447/sq ft

Greater Lansing AoR #18397360

Dec 7, 2018

Sold

$860,000

$440/sq ft

Oct 16, 2018

Listed

$875,000

$447/sq ft

TheMLS #18-397360

Dec 7, 2018

Sold

$860,000

$440/sq ft

Nov 9, 2018

Pending

—

Nov 7, 2018

Price Changed

$875,000

$447/sq ft

Oct 29, 2018

Relisted

—

Oct 24, 2018

Pending

—

Oct 16, 2018

Listed

$895,000

$458/sq ft

SDMLS #301745093

Oct 17, 2018

Listing Removed

—

Sep 11, 2018

Listed

$895,000

$458/sq ft

CRMLS #P0-22173250

Aug 2, 2013

Sold

$375,000

$192/sq ft

Jun 21, 2013

Listing Removed

—

Mar 8, 2013

Listed

$390,000

$199/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$12,100 (+4.3%)

$703,175 + $190,074

$893,249

2024

$11,595 (+2.4%)

$689,388 + $286,687

$976,075

2023

$11,325 (+3.5%)

$675,871 + $281,066

$956,937

2022

$10,938 (+5.3%)

$662,619 + $275,555

$938,174

2021

$10,387 (+4.1%)

$649,627 + $270,152

$919,779

2020

$9,979 (−0.2%)

$636,890 + $264,855

$901,745

2019

$10,001 (+95.1%)

$630,360 + $262,140

$892,500

2018

$5,126 (+1.0%)

$618,000 + $257,000

$875,000

2017

$5,074 (+2.4%)

$279,903 + $116,186

$396,089

2016

$4,957 (+1.1%)

$279,903 + $116,186

$396,089

2015

$4,904 (+1.7%)

$274,415 + $113,908

$388,323

2014

$4,820 (−24.8%)

$265,000 + $110,000

$375,000

2012

$6,411 (+2.4%)

$351,042 + $177,156

$528,198

2011

$6,258 (+1.6%)

$344,159 + $173,683

$517,842

2010

$6,160 (−0.7%)

$337,411 + $170,278

$507,689

2009

$6,204 (+6.5%)

$334,890 + $169,006

$503,896

2008

$5,828

$335,686 + $169,408

$505,094

Tax history for 503 Royce St

Year

Property tax

Land + Additions

Assessment*

2025

$12,100 (+4.3%)

$703,175 + $190,074

$893,249

2024

$11,595 (+2.4%)

$689,388 + $286,687

$976,075

2023

$11,325 (+3.5%)

$675,871 + $281,066

$956,937

2022

$10,938 (+5.3%)

$662,619 + $275,555

$938,174

2021

$10,387 (+4.1%)

$649,627 + $270,152

$919,779

2020

$9,979 (−0.2%)

$636,890 + $264,855

$901,745

2019

$10,001 (+95.1%)

$630,360 + $262,140

$892,500

2018

$5,126 (+1.0%)

$618,000 + $257,000

$875,000

2017

$5,074 (+2.4%)

$279,903 + $116,186

$396,089

2016

$4,957 (+1.1%)

$279,903 + $116,186

$396,089

2015

$4,904 (+1.7%)

$274,415 + $113,908

$388,323

2014

$4,820 (−24.8%)

$265,000 + $110,000

$375,000

2012

$6,411 (+2.4%)

$351,042 + $177,156

$528,198

2011

$6,258 (+1.6%)

$344,159 + $173,683

$517,842

2010

$6,160 (−0.7%)

$337,411 + $170,278

$507,689

2009

$6,204 (+6.5%)

$334,890 + $169,006

$503,896

2008

$5,828

$335,686 + $169,408

$505,094

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

Public record

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

9,958

Year renovated

—

Sq. Ft.

1,956

Year built

1926

Style

Single Family Residential

County

Los Angeles County

APN

5828024017

Parking Spaces

Basement

Accessible

HOA Dues

—

Garage

Yes

Features

Views

Last updated by owner on Sep 9, 2025.

Property details

Parking

Garage
2 Car Garage

Interior

Bathroom Information
# of Baths (Full): 4

Laundry Information
Laundry in Unit

Additional Rooms
Den/Office

Fireplace Information
In Family Room

Flooring Information
Tile Floors

Equipment
Ceiling Fan, Dishwasher, Dryer, Microwave, Range/Oven, Refrigerator, Washer

Heating & Cooling
Central Cooling
Central Heat

Exterior

Building Information
Detached
Guest House: Detached

Property Information
Property Type: Residential Single-Family

Lot Information
Lot Size (Sq. Ft.): 9,958
Zoning: LCR175

Property Features
Has View

Financial

Assessment Information
Assessor Parcel Number: 5828-024-017

Location

Community Information
# of Units in Complex (Total): 2

Location Information
Directions: Lincoln to Royce

Public facts

Beds: 4
Baths: 4.0
Sq. Ft.: 1,956
Stories: —
Parking Spaces: 4
Basement: No
Accessible: No
Lot Size: 9,958 square feet
Style: Single Family Residential
Year Built: 1926
Year Renovated: —
County: Los Angeles County
APN: 5828024017
HOA Dues: —
Garage: Yes
Features: Views

Home facts updated by owner on Sep 9, 2025

Other

Documents & Disclosures
Disclosures: Owner Has R.E. License

Around this home

Schools

Altadena Elementary School

Public K-5 • Assigned • 1.5mi

5/10

Eliot Arts Magnet

Public 6-8 • Assigned • 1.8mi

2/10

John Muir High School

Public 9-12 • Assigned • 0.8mi

4/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The Los Angeles County market is becoming more balanced, giving buyers a little more room to negotiate while well-priced homes can still attract strong interest. With homes taking longer to sell and buyers becoming more selective, pricing and...
3 days ago • Los Angeles County
Sang Ur
Redfin Premier agent
123 deals
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

16% chance of being in a wildfire in next 30 years

6/10 Heat Factor

8 days above 97° 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, 11 days in 30 years

Provided by First Street

Historical weather

Altadena, CA • 91001

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 10.2 hours in June and 6.5 hours in December, placing it above the U.S. average for solar exposure.

10.2 hrs

6.5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.15M – $1.39M

Reach more buyers when you sell with Redfin. Save up to $12,055 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Nearby similar homes

$1,720,000

5 beds4.5 baths3,348 sq ft

632 Hartwell Ct, Altadena, CA 91001

Open concept kitchen • Wine cellar • 5,771 sq ft lot

NEW 23 HRS AGO

$849,000

2 beds1 bath805 sq ft

1790 Mentone, Pasadena, CA 91103

Fully remodeled • Move-in ready • Tree-lined street

$690,000

Land— sq ft

42 Marathon Rd, Altadena, CA 91001

Local amenities • Adu configuration

$575,000

2 beds1 bath736 sq ft

3132 Ridgeview Dr, Altadena, CA 91001

Generous lot • Custom home • Mountain views

OPEN TUE, 10AM TO 4PMVIDEO TOUR

$2,201,900

3 beds3.5 baths3,142 sq ft

707 Via Arezzo Pl, Altadena, CA 91001

Gated community • Sub-zero appliances • 0.33 acre lot

$695,000

Land— sq ft

175 E Altadena Dr, Altadena, CA 91001

Private driveway • Historic yale house • Victorian residence

New listings for sale in 91001

$800,000

2 beds1 bath1,016 sq ft

1970 Allen Ave, Altadena, CA 91001

Detached garage • Expansive backyard • Neighborhood parks

$2,799,000

7 beds6 baths3,500 sq ft

715 Devirian Pl, Altadena, CA 91001

Scenic hiking trails • Vibrant gardens • Detached structure

$1,498,000

3 beds2 baths1,823 sq ft

2120 Roosevelt, Altadena, CA 91001

Updated kitchen • Separate den • Expansive rear deck

$1,278,000

3 beds3 baths1,431 sq ft

949 Dolores, Altadena, CA 91001

Remodeled kitchen • New electrical panel • Spacious usable yard

Coldwell Banker-Campbell Rltrs

$859,000

3 beds2 baths1,140 sq ft

135 W Woodbury, Altadena, CA 91001

Newer roof • New air conditioning • New windows

Home values near 503 Royce St

Data from public records.

Address	Redfin Estimate
551 Royce Street, Altadena, CA 4 Beds \| 3 Baths \| 1956 Sq. Ft.	$1,191,419
515 Royce Street, Altadena, CA 2 Beds \| 2 Baths \| 1739 Sq. Ft.	$1,051,950

Address	Redfin Estimate
541 Royce Street, Altadena, CA 3 Beds \| 2 Baths \| 1305 Sq. Ft.	$1,095,105
497 Royce Street, Altadena, CA 3 Beds \| 2 Baths \| 1466 Sq. Ft.	$1,239,533

Address	Redfin Estimate
533 Royce Street, Altadena, CA 6 Beds \| 4 Baths \| 3214 Sq. Ft.	$1,557,775
491 Royce Street, Altadena, CA 2 Beds \| 2 Baths \| 1576 Sq. Ft.	$1,295,086

Property information provided by TheMLS when last listed in 2018. 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.

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.

91011 homes for sale
91103 homes for sale
91104 homes for sale
91107 homes for sale
91001 homes for sale

Houses for rent in Altadena	Agents near me	Irvine, CA homes for sale	Altadena 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	Altadena Property Records
Condos for sale near me	San Jose, CA homes for sale	CA New Listings

Pasadena homes for sale
Los Angeles homes for sale
Glendale homes for sale

About this home

Redfin Estimate

Earn from this home

Market trends in 91001, CA

Sale history for 503 Royce St

Tax history for 503 Royce St

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 91001

Home values near 503 Royce St

More real estate resources