Los Angeles County  »  20291 Portside Dr

20291 Portside Drive, Walnut, CA 91789 - Property report

Also known as: 20291 Portside Dr

Property image for 20291 Portside Drive, Walnut, CA 91789
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Property type

Single Family Residence (0100)

Year built

1987

Acreage

0.217

Sale price

$278,000

General Information

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Access up-to-date information from property owner names to sales history, deeds, tax info, mortgages, development data, planimetric maps and more.

Address
Primary address
20291 Portside Dr
Walnut, CA 91789
Zip code
91789
County
Los Angeles

Owner

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Building
Property type
Single Family Residence
Building sq. ft.
2,648
Buildings on lot
1
Year built
1987
Last altered
Bedrooms
4
Bathrooms
3
HVAC
Central refrigeration & heating
Sales
Sale date
05/13/1988
Sale price
$278,000
Arm's length
Tax
Tax year
2025-2026
Property tax
$6,386
Tax per sq. ft.
$2
Zoning & use
Zoning
Light Agricultural (A-1-1)
Units
1
Lot
Acreage
0.217

Area overview

Walk score
2 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
1 /100.  Somewhat Bikeable
School district
Rowland Unified School District
Weed hazard
No
Ownership

Ownership information for 20291 Portside Drive, Walnut, CA

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 20291 Portside Drive, Walnut, CA 91789

Sale date Sale price Buyer name Seller name
05/13/1988 $278,000 XXXXXXX, XXXX & XXXXX XXXXX

*Most recent sale on record for this property.

More about Los Angeles County property records.

Title documents

Date Type Amount Party 1 Party 2
03/21/2023 Grant Deed
(File correction - Single parcel sale)		 XXXXXXX XXXXXX XXXXX XXXXXXX XXXX XXXXXXX
04/11/2012 Homestead XXXXXXX XXXX
11/16/2005 Trust Deed XXXXXXX XXXX XXXXXXXX XXXX
05/13/1988 Deed XXXXX XXXXXXX, XXXX & XXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 20291 Portside Drive, Walnut, CA

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025-2026
Base tax
$6,386
Current property tax
$7,331
Tax per sq. ft.
$2
Recent tax assessments
Market value
$542,722
Land value
$216,692
Building value
$326,030

More about Los Angeles County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $542,722 1.1766 $6,386 +1.93%
2024-2025 $532,082 1.1774 $6,265 +3.73%
2023-2024 $521,650 1.1578 $6,040 +2.22%
2022-2023 $511,423 1.1553 $5,908 +1.50%
2021-2022 $501,396 1.1609 $5,821 +1.37%
2020-2021 $496,257 1.157137 $5,742 +3.88%
2019-2020 $476,989 1.158918 $5,528 +3.11%
2018-2019 $467,637 1.1465 $5,361 +2.08%
2017-2018 $458,468 1.1456 $5,252 +1.44%
2016-2017 $449,479 1.1519 $5,178 +1.76%

Special assessments & penalties for 20291 Portside Drive, Walnut, CA

Code Description Tax levied
00311 County Library Services
06221 County Sanitation District #21
06181 Greater L.A. County Vector Control District
03694 La County Regional Park And Open Space District
00744 Los Angeles County Fire Department
00746 Los Angeles County Fire Department Brush Initial Inspection
03071 Los Angeles County Flood Control
02800 Los Angeles County Lighting District
04000 Los Angeles County Sewer Maintenance
00197 Los Angeles County Solid Waste Service Charge
00170 Los Angeles County Trauma/Emerg Srvs
33011 Mwd Water Standby Charge #2
00177 Safe, Clean Water Program Funding Measure W
36551 Three Valleys Mwd Standby Charge
37092 Walnut Valley Water Standby
Permits

Permit information for 20291 Portside Drive, Walnut, CA

Issued date Permit number Permit type Sub type Valuation Expire date Status
04/17/2012
04/17/2012
04/17/2012

*Most recent permits on record for this property.

More about Los Angeles County property records

Neighborhood

Risk

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FEMA flood zones

FEMA flood zones
X
Landslides and liquefaction map

Fire hazard zones

Faults and tsunami inundation zones map
Crime incidents map

Transportation

Daily traffic map
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Access the detailed traffic volume map for 20291 Portside Drive, Walnut, CA 91789 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Tzu Chi Elementary School - Walnut NR Private K-5 53 0.79
Montessori School Of Diamond Bar NR Private PK-K 28 0.94
Montessori School Of Diamond Bar NR Private PK-K 28 0.94
Shelyn Elementary School 7 Public K-6 453 0.95
Castle Rock Elementary School 7 Public K-5 646 1.08
Elite Open School NR Private 5-12 43 1.09
Ybarra Academy For The Arts And Technology 7 Public K-8 596 1.33
Wisdom Kids College NR Private K-8 0 1.38
Killian Elementary School 6 Public K-6 452 1.48
Rowland Adult And Community Education NR Public 0 1.49
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Elite Open School NR Private 5-12 43 1.09
Ybarra Academy For The Arts And Technology 7 Public K-8 596 1.33
Wisdom Kids College NR Private K-8 0 1.38
South Pointe Middle School 8 Public 6-8 879 1.45
Rowland Adult And Community Education NR Public 0 1.49
International Cross Academy NR Private 1-12 0 1.52
Rowland Unified Community Day School NR Public 7-12 31 1.62
Elite Open School NR Private 5-12 70 1.64
Ivy League School NR Private K-11 64 1.64
Walnut Valley Adult NR Public 0 1.86
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Elite Open School NR Private 5-12 43 1.09
Diamond Bar High School 10 Public 9-12 2,557 1.32
John A. Rowland High School 8 Public 9-12 2,025 1.40
Rowland Adult And Community Education NR Public 0 1.49
International Cross Academy NR Private 1-12 0 1.52
Rowland Unified Community Day School NR Public 7-12 31 1.62
Elite Open School NR Private 5-12 70 1.64
Ivy League School NR Private K-11 64 1.64
Walnut Valley Adult NR Public 0 1.86
California University Preparatory School NR Private 8-12 24 2.03

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 20291 Portside Drive, Walnut, CA

19502 Windrose Dr, Rowland Heights 2326 Hillman Ln, Rowland Heights 19526 Windrose Dr, Rowland Heights 19520 Windrose Dr, Rowland Heights 19514 Windrose Dr, Rowland Heights 19508 Windrose Dr, Rowland Heights 20285 Portside Dr, Walnut 19322 Oakview Ln, Rowland Heights 19360 Windrose Dr, Rowland Heights 19300 Oakview Ln, Rowland Heights 19310 Oakview Ln, Rowland Heights 2320 Hillman Ln, Rowland Heights 19354 Windrose Dr, Rowland Heights 2330 Hillman Ln, Rowland Heights 19368 Windrose Dr, Rowland Heights 19538 Windrose Dr, Rowland Heights 19532 Windrose Dr, Rowland Heights 19318 Oakview Ln, Rowland Heights 19314 Oakview Ln, Rowland Heights 19306 Oakview Ln, Rowland Heights

Nearby ZIP codes for 20291 Portside Drive, Walnut, CA

91722, Los Angeles County, CA 91723, Los Angeles County, CA 91724, Los Angeles County, CA 91744, Los Angeles County, CA 91745, Los Angeles County, CA 91748, Los Angeles County, CA 91768, Los Angeles County, CA 91773, Los Angeles County, CA 92821, Orange County, CA

Frequently asked questions

What is the year built for 20291 Portside Drive, Walnut, CA 91789?

The development at 20291 Portside Drive, Walnut, CA 91789 was built in 1987.

What is the total square footage of 20291 Portside Drive, Walnut, CA 91789?

20291 Portside Drive, Walnut, CA 91789 has a total of 2,648 square feet.

When was 20291 Portside Drive, Walnut, CA 91789 last sold and what was the sale price?

20291 Portside Drive, Walnut, CA 91789 was last sold on 05/13/1988 for $278,000.

What is the assessed value of 20291 Portside Drive, Walnut, CA 91789?

20291 Portside Drive, Walnut, CA 91789 is currently assessed at $542,722.

What are the property taxes for 20291 Portside Drive, Walnut, CA 91789?

The property taxes for 20291 Portside Drive, Walnut, CA 91789 total $6,385.

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