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550 Old Mill Road, San Marino, CA 91108 Property Information

550 Old Mill Road, San Marino, CA 91108 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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550 Old Mill Road, San Marino, CA 91108
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Address

Primary address 550 Old Mill Road, San Marino
Zip code 91108
County Los Angeles
Municipality San Marino

Sales & Tax Overview for 550 Old Mill Road, San Marino

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Current property tax $26,573

Lot & Building Information for 550 Old Mill Road, San Marino

Building sqft 3,130
Building class Single Family Residence (0100)
Acreage 0.205 i
Units 1
Year built 1926
Year last altered
Bedrooms 4
Bathrooms 4
Heating/AC Central refrigeration & heating
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Single-Family Dwelling Zone District Vii (R-1)
Weed hazard No
School district San Marino Unified School District

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 550 Old Mill Road, San Marino

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  • • Improvements for 550 Old Mill Road, San Marino , including their type, square footage, grade and when they were built.
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About 550 Old Mill Road, San Marino

What is the year built & the total sq. ft. for 550 Old Mill Road, San Marino, CA 91108?

550 Old Mill Road, San Marino, CA 91108 was built in 1926 and has a total of 3,130 square feet.

What is the assessed value of 550 Old Mill Road, San Marino, CA 91108 and the property tax paid?

Assessed at $2,239,736, the tax amount paid for 550 Old Mill Road, San Marino, CA 91108 is $24,065.

When was 550 Old Mill Road, San Marino, CA 91108 last sold?

550 Old Mill Road, San Marino, CA 91108 was last sold in 12/08/2021.

Ownership Information

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Real Estate Reports:
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
Eliza Theiss, Apr 15, 2026 2026 Q1 Foreclosure Report: Brooklyn Filings Fall Sharply, Bronx & Staten Island Hit New Peaks
Behind a deceptively mild citywide downtick, borough foreclosure markets pulled into significantly diverging paths as Brooklyn cases were nearly halved and the Bronx hit a new, record high. Meanwhile, Queens remained unchanged, Staten Island surged back up and Manhattan cooled slowly.
Laura Pop-Badiu, Apr 09, 2026 How to Do a Title Search on Property Yourself: A Step-by-Step Online GuideĀ 
A property title search is the process of reviewing public records to confirm who legally owns a property and whether there are any liens, mortgages or legal claims attached to it. Explore our step-by-step guide explaining how you can perform a title search yourself. 
Research 100M+ property records powered by:
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Past Sales & Property History for 550 Old Mill Road, San Marino

Create a free account to view the complete sales history for 550 Old Mill Road, San Marino, including title documents, transfer conditions, mortgages and liens.

No recorded sales for this property.

Title Documents for 550 Old Mill Road, San Marino

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
02/28/2022 Trust Deed 03/01/2052
12/08/2021 Trust Transfer Deed
(File correction - Single parcel sale)
12/08/2021 Quitclaim Deed
01/17/2013 Quitclaim Deed
(File correction - Single parcel sale)
02/24/2012 Subordination
02/24/2012 Trust Deed 03/01/2042
11/07/2011 Trust Deed
12/01/2009 Reconveyance
Substitution Trustee
11/10/2009 Trust Deed
07/27/2005 Trust Deed
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R: Recorded date
D: Document date

Property Taxes for 550 Old Mill Road, San Marino

Access detailed property tax data for 550 Old Mill Road, San Marino, CA 91108. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $24,066
Current property tax $26,573
Market value $2,239,736
Tax per sqft $8

Special Assessments And Penalties for 550 Old Mill Road, San Marino

Special Assessments

Abatements, financial assistance programs and non-ad valorem taxes levied as special taxes/direct assessments are applicable for this property.

Code Description Tax levied
06216 County Sanitation District #16
06181 Greater L.A. County Vector Control District
03694 La County Regional Park And Open Space District
03071 Los Angeles County Flood Control
00170 Los Angeles County Trauma/Emerg Srvs

Assessment History for 550 Old Mill Road, San Marino

Here's the assessment & property tax history for 550 Old Mill Road, San Marino, including the evolution of the total tax rate and corresponding property tax.

Year Assessment value Total tax rate Property tax Year over year change
2025-2026 $2,239,736 1.0745 $24,066 +0.08%
2024-2025 $2,195,820 1.0951 $24,046 +2.24%
2023-2024 $2,152,766 1.0925 $23,519 +3.28%
2022-2023 $2,110,556 1.079 $22,773 +1.78%
2021-2022 $2,069,174 1.0813 $22,374 +1.57%

Permits for 550 Old Mill Road, San Marino

The complete history of permits filed for 550 Old Mill Road, San Marino, including new construction or demolition permits, complaints, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Data not available for this property.

San Marino residential market stats

Median Sale Price
$2,835,000
1.3% YoY
Median Price/Sqft
$1,134
8.1% YoY
Los Angeles County Median Sale Price
$889,500
1.7% YoY

Access a detailed real estate market overview of San Marino so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in San Marino and compare it to other neighborhoods in Los Angeles County.

Risk

Create a free account to unlock extended information for 550 Old Mill Road, San Marino, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map

Transportation

Access the detailed traffic volume map for 550 Old Mill Road, San Marino to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Marengo Elementary School 9 Public K-5 754 0.77
Holy Family Catholic School NR Private K-8 301 1.13
Garfield Elementary School 7 Public K-8 574 1.19
Polytechnic School NR Private K-12 858 1.20
Polytechnic School NR Private K-12 864 1.20

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Southwestern Academy NR Private 6-12 149 0.36
Southwestern Academy NR Private 6-12 150 0.36
Blair High School 5 Public 6-12 1,117 0.77
South Pasadena Middle School 9 Public 6-8 1,084 0.95
Holy Family Catholic School NR Private K-8 301 1.13

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Southwestern Academy NR Private 6-12 149 0.36
Southwestern Academy NR Private 6-12 150 0.36
Westbrook Academy NR Private 10 0 0.70
Blair High School 5 Public 6-12 1,117 0.77
South Pasadena Senior High School 10 Public 9-12 1,477 1.11

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 550 Old Mill Road, San Marino

Here are the neighbors for 550 Old Mill Road, San Marino.

Address Square feet Purchase date Purchase price
2601 Mission St, San Marino 1,276 08/05/2014
1720 S Los Robles Ave, San Marino 3,141 07/27/2022
1760 S Los Robles Ave, San Marino 2,679 11/15/2024
1715 S El Molino Ave, San Marino 3,030 09/21/2020 $2,706,500
2619 Mission St, San Marino 6,128
1701 S El Molino Ave, San Marino 3,658 08/30/2013 $2,380,500
1690 S Los Robles Ave, San Marino 2,667 07/16/2008
1665 S El Molino Ave, San Marino 2,362 11/04/2020
1680 S Los Robles Ave, San Marino 2,424 06/20/2016
1770 S Los Robles Ave, San Marino 2,768 07/11/2023
1710 S Los Robles Ave, San Marino 3,956 05/06/2014
1675 S El Molino Ave, San Marino 3,592 01/05/2022
1691 S El Molino Ave, San Marino 3,385 07/22/2015
1735 S El Molino Ave, San Marino 2,807 11/12/2002
1755 S El Molino Ave, San Marino 3,152 11/09/2010
1670 S Los Robles Ave, San Marino 1,798 06/29/2007 $960,000
1750 S Los Robles Ave, San Marino 2,797 07/06/2020
560 Old Mill Rd, San Marino 2,951 01/21/1999 $735,000
580 Old Mill Rd, San Marino 2,195 08/12/2025 $1,738,000
1725 S El Molino Ave, San Marino 3,564 03/11/2025

Nearby ZIP Codes for 550 Old Mill Road, San Marino

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