Los Angeles County  »  91108  »  Old Mill Rd  »  646 Old Mill Rd

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

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

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Photo & Map Show Hide

646 Old Mill Road, San Marino, CA 91108
static Mapbox map

Address

Primary address 646 Old Mill Road, San Marino
Zip code 91108
County Los Angeles
Municipality Pasadena

Sales & Tax Overview for 646 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.

Sale date 09/19/2016
Sale price $1,739,500
Arm's length
Current property tax $23,621

Lot & Building Information for 646 Old Mill Road, San Marino

Building sqft 1,815
Building class Single Family Residence (0100)
Acreage 0.173 i
Units 1
Year built 1937
Year last altered
Bedrooms 3
Bathrooms 3
Heating/AC Central heating
Pool Yes
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now

Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Single-Family Residential Hillside Overlay District (RS-4 HD)
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 646 Old Mill Road, San Marino

Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:

  • • Improvements for 646 Old Mill Road, San Marino , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
Unlock all property data with a free account.
Sign up

About 646 Old Mill Road, San Marino

What is the year built & the total sq. ft. for 646 Old Mill Road, San Marino, CA 91108?

646 Old Mill Road, San Marino, CA 91108 was built in 1937 and has a total of 1,815 square feet.

What is the assessed value of 646 Old Mill Road, San Marino, CA 91108 and the property tax paid?

Assessed at $2,059,209, the tax amount paid for 646 Old Mill Road, San Marino, CA 91108 is $23,075.

When was 646 Old Mill Road, San Marino, CA 91108 last sold and what was the last sale price?

646 Old Mill Road, San Marino, CA 91108 was last sold in 09/19/2016 for $1,739,500.

Ownership Information

View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.

Real Estate Reports:
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
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.
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Past Sales & Property History for 646 Old Mill Road, San Marino

Create a free account to view the complete sales history for 646 Old Mill Road, San Marino, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
09/19/2016 $1,739,500
08/17/2001 $727,500
02/18/1998 $522,500
       
       
Access the complete sales history for 646 Old Mill Road, San Marino with a free account.
Sign up

*Here are the three most recent sales for this property.


Title Documents for 646 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
09/19/2016 Trust Deed 10/01/2046
09/19/2016 Grant Deed
(Sale for consideration - full DTT - Single parcel sale)
09/19/2016 Power Attorney
04/30/2009 Deed
(File correction - Single parcel sale)
11/04/2002 Deed
(File correction - Single parcel sale)
08/17/2001 Deed
09/25/2000 Deed
(File correction - Single parcel sale)
02/18/1998 Deed
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 646 Old Mill Road, San Marino

Access detailed property tax data for 646 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 $23,075
Current property tax $23,621
Market value $2,059,209
Tax per sqft $13

Special Assessments And Penalties for 646 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
03694 La County Regional Park And Open Space District
03071 Los Angeles County Flood Control
00170 Los Angeles County Trauma/Emerg Srvs
31034 Mwd Water Standby Charge #9

Assessment History for 646 Old Mill Road, San Marino

Here's the assessment & property tax history for 646 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 $2,059,209 1.1206 $23,075 +4.38%
2024-2025 $2,018,833 1.095 $22,106 +0.83%
2023-2024 $1,979,249 1.1077 $21,924 +3.68%
2022-2023 $1,940,441 1.0897 $21,145 +4.26%
2021-2022 $1,902,394 1.0661 $20,281 +4.38%

Permits for 646 Old Mill Road, San Marino

The complete history of permits filed for 646 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.

Issued Permit Type Sub type Valuation Expires Status
04/27/2011
10/25/2007
03/04/1998
03/03/1998
02/19/1998
02/19/1998
02/19/1998
02/19/1998
Unlock the permit history for 646 Old Mill Road, San Marino
Sign up

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 646 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 646 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 0.84
Polytechnic School NR Private K-12 864 1.14
Polytechnic School NR Private K-12 858 1.14
Garfield Elementary School 7 Public K-8 574 1.21
Holy Family Catholic School NR Private K-8 301 1.21

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Southwestern Academy NR Private 6-12 149 0.32
Southwestern Academy NR Private 6-12 150 0.32
Blair High School 5 Public 6-12 1,117 0.79
South Pasadena Middle School 9 Public 6-8 1,084 1.02
Polytechnic School NR Private K-12 864 1.14

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Southwestern Academy NR Private 6-12 149 0.32
Southwestern Academy NR Private 6-12 150 0.32
Westbrook Academy NR Private 10 0 0.77
Blair High School 5 Public 6-12 1,117 0.79
Polytechnic School NR Private K-12 864 1.14

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

Neighbors for 646 Old Mill Road, San Marino

Here are the neighbors for 646 Old Mill Road, San Marino.

Address Square feet Purchase date Purchase price
2783 Doresta Rd, San Marino 2,124 03/13/2012
765 Old Mill Rd, San Marino 2,591
660 Old Mill Rd, San Marino 2,868 12/02/2020 $2,185,000
670 Old Mill Rd, San Marino 2,527 11/04/2016
720 Old Mill Rd, San Marino 2,368 08/19/2014
1480 Lomita Dr, Pasadena 5,195 03/12/2012 $3,950,000
1605 S El Molino Ave, Pasadena 2,816 09/25/2018
640 Old Mill Rd, San Marino 2,980 05/13/2020
777 Old Mill Rd, San Marino 1,479 12/31/2010
1540 S Los Robles Ave, Pasadena 1,719 05/07/2019
1478 Lomita Dr, Pasadena 3,892 12/03/2020
1442 Lomita Dr, Pasadena 3,567 05/30/2017 $2,350,000
789 Old Mill Rd, San Marino 1,712 08/30/2007
2791 Doresta Rd, San Marino 1,932 03/31/2003
750 Old Mill Rd, San Marino 1,702 10/24/2022
734 Old Mill Rd, San Marino 2,358 10/21/2024
710 Old Mill Rd, San Marino 1,765 03/27/2020 $1,605,500
690 Old Mill Rd, San Marino 1,845
1450 Lomita Dr, Pasadena 5,526 11/30/2020 $4,700,000
1617 S El Molino Ave, Pasadena 2,071 10/23/2009 $1,265,012

Nearby ZIP Codes for 646 Old Mill Road, San Marino

Not sure if we cover all the data-points you need? View sample full report View sample full report