Los Angeles County  »  20355 Portside Dr

20355 Portside Drive, Walnut, CA 91789 - Property report

Also known as: 20355 Portside Dr

Property image for 20355 Portside Drive, Walnut, CA 91789
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Property type

Single Family Residence with Pool (0101)

Year built

1985

Acreage

0.306

Sale price

$679,006

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
20355 Portside Dr
Walnut, CA 91789
Zip code
91789
County
Los Angeles

Owner

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Building
Property type
Single Family Residence with Pool
Building sq. ft.
2,282
Buildings on lot
1
Year built
1985
Last altered
Bedrooms
4
Bathrooms
3
HVAC
Central refrigeration & heating
Pool
Yes
Sales
Sale date
03/10/2005
Sale price
$679,006
Arm's length
Tax
Tax year
2026-2027
Property tax
$11,586
Tax per sq. ft.
$5
Zoning & use
Zoning
Light Agricultural (A-1-1)
Units
1
Lot
Acreage
0.306

Area overview

Walk score
6 /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 20355 Portside Drive, Walnut, CA

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

Sales history for 20355 Portside Drive, Walnut, CA 91789

Sale date Sale price Buyer name Seller name
03/10/2005 $679,006 XXXXXXX XXXXXXXX X XXXX XXX XXXX
04/30/2002 $410,004 XXXX, XXXXXXX & XXX X XX XX XXXXXX, XXXXX & XXXXXXX

*Most recent sales on record for this property.

More about Los Angeles County property records.

Title documents

Date Type Amount Party 1 Party 2
04/10/2025 Notice XXXXXXX XXXXXXXX
12/16/2024 Financing Statement XXXXXXX XXXXXXXX XXXXXXXXXX XXX
08/20/2008 Reconveyance
Substitution Trustee		 XXXXXXX XXXXXXXX XXXXXXX XXXXXXXX
12/21/2006 Deed XXXXXXX XXXXXXXX X XXXXXXX XXXXXXXX
03/10/2005 Deed
(Sale for consideration - full DTT - Single parcel sale)		 XXXX XXX XXXX XXXXXXX XXXXXXXX X
10/14/2003 Deed XXXX, XXXXXXX & XXX X XXXX, XXX X
04/30/2002 Deed
(Sale for consideration - full DTT - Single parcel sale)		 XX XX XXXXXX, XXXXX & XXXXXXX XXXX, XXXXXXX & XXX X

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 20355 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
2026-2027
Base tax
$11,586
Current property tax
$12,735
Tax per sq. ft.
$5
Recent tax assessments
Market value
$984,688
Land value
$713,359
Building value
$271,329

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 $965,381 1.1766 $11,359 +1.93%
2024-2025 $946,453 1.1774 $11,144 +3.73%
2023-2024 $927,896 1.1578 $10,743 +2.22%
2022-2023 $909,703 1.1553 $10,510 +1.50%
2021-2022 $891,866 1.1609 $10,354 +1.37%
2020-2021 $882,723 1.157137 $10,214 +3.88%
2019-2020 $848,447 1.158918 $9,833 +3.11%
2018-2019 $831,811 1.1465 $9,536 +6.31%
2017-2018 $783,000 1.1456 $8,970 -0.55%
2016-2017 $783,000 1.1519 $9,020 +0.23%

Special assessments & penalties for 20355 Portside Drive, Walnut, CA

Code Description Tax levied
00747 Consolidated Fire Protection District Of La County- Measure E
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
06859 Puente Hills Habitat Preservation Authority Cfd No. 2024-01
00177 Safe Clean Water Program Funding Measure W
36551 Three Valleys Mwd Standby Charge
37092 Walnut Valley Water Standby
Permits

Permit information for 20355 Portside Drive, Walnut, CA

No recently recorded permits for this property.

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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
View daily traffic map

Access the detailed traffic volume map for 20355 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)
Montessori School Of Diamond Bar NR Private PK-K 28 0.77
Montessori School Of Diamond Bar NR Private PK-K 28 0.77
Tzu Chi Elementary School - Walnut NR Private K-5 53 0.84
Castle Rock Elementary School 7 Public K-5 646 0.89
Shelyn Elementary School 7 Public K-6 453 1.09
Elite Open School NR Private 5-12 43 1.15
Ybarra Academy For The Arts And Technology 7 Public K-8 596 1.39
Wisdom Kids College NR Private K-8 0 1.41
Evergreen Elementary School 9 Public K-5 719 1.44
Killian Elementary School 6 Public K-6 452 1.66
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Elite Open School NR Private 5-12 43 1.15
South Pointe Middle School 8 Public 6-8 879 1.30
Ybarra Academy For The Arts And Technology 7 Public K-8 596 1.39
Wisdom Kids College NR Private K-8 0 1.41
International Cross Academy NR Private 1-12 0 1.47
Rowland Adult And Community Education NR Public 0 1.67
Walnut Valley Adult NR Public 0 1.76
Rowland Unified Community Day School NR Public 7-12 31 1.79
Ivy League School NR Private K-11 64 1.82
Elite Open School NR Private 5-12 70 1.82
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Diamond Bar High School 10 Public 9-12 2,557 1.11
Elite Open School NR Private 5-12 43 1.15
International Cross Academy NR Private 1-12 0 1.47
John A. Rowland High School 8 Public 9-12 2,025 1.57
Rowland Adult And Community Education NR Public 0 1.67
Walnut Valley Adult NR Public 0 1.76
Rowland Unified Community Day School NR Public 7-12 31 1.79
Ivy League School NR Private K-11 64 1.82
Elite Open School NR Private 5-12 70 1.82
Institute of Knowledge NR Private K-10 265 2.10

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

Neighbors for 20355 Portside Drive, Walnut, CA

20335 Portside Dr, Walnut 20394 E Crestline Dr, Walnut 20343 Portside Dr, Walnut 20339 Portside Dr, Walnut 20367 Portside Dr, Walnut 20404 E Crestline Dr, Walnut 20323 Portside Dr, Walnut 20388 E Crestline Dr, Walnut 20359 Portside Dr, Walnut 20327 Portside Dr, Walnut 20315 Portside Dr, Walnut 20363 Portside Dr, Walnut 20347 Portside Dr, Walnut 20319 Portside Dr, Walnut 20371 Portside Dr, Walnut 20351 Portside Dr, Walnut 20376 E Crestline Dr, Walnut 20331 Portside Dr, Walnut 20375 Portside Dr, Walnut 20382 E Crestline Dr, Walnut

Nearby ZIP codes for 20355 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 20355 Portside Drive, Walnut, CA 91789?

The development at 20355 Portside Drive, Walnut, CA 91789 was built in 1985.

What is the total square footage of 20355 Portside Drive, Walnut, CA 91789?

20355 Portside Drive, Walnut, CA 91789 has a total of 2,282 square feet.

When was 20355 Portside Drive, Walnut, CA 91789 last sold and what was the sale price?

20355 Portside Drive, Walnut, CA 91789 was last sold on 03/10/2005 for $679,006.

What is the assessed value of 20355 Portside Drive, Walnut, CA 91789?

20355 Portside Drive, Walnut, CA 91789 is currently assessed at $965,381.

What are the property taxes for 20355 Portside Drive, Walnut, CA 91789?

The property taxes for 20355 Portside Drive, Walnut, CA 91789 total $11,358.

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