Los Angeles County  »  321 N Mountain Ave

321 North Mountain Avenue, Monrovia, CA 91016 - Property report

Also known as: 321 N Mountain Ave

Property image for 321 North Mountain Avenue, Monrovia, CA 91016
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Property type

Single Family Residence with Pool (0101)

Year built

1965

Acreage

0.147

Sale price

$1.4M

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
321 N Mountain Ave
Monrovia, CA 91016
Zip code
91016
County
Los Angeles
Municipality
Monrovia

Owner

Find out who owns 321 North Mountain Avenue, Monrovia, CA 91016. Uncover corporate and individual owners with a free account.

Building
Property type
Single Family Residence with Pool
Building sq. ft.
2,448
Buildings on lot
1
Year built
1965
Last altered
Bedrooms
4
Bathrooms
3
HVAC
Central refrigeration & heating
Pool
Yes
Sales
Sale date
09/30/2026
Sale price
$1,420,000
Arm's length
Tax
Tax year
2026-2027
Property tax
$17,699
Tax per sq. ft.
$7
Zoning & use
Zoning
Residential Low (RL)
Units
1
Lot
Acreage
0.147

Area overview

Walk score
32 /100.  Car-Dependent
Transit score
11 /100.  Minimal Transit
Bike score
30 /100.  Somewhat Bikeable

Data provided by: Walk Score®

School district
Monrovia Unified School District
Weed hazard
No
Ownership

Ownership information for 321 North Mountain Avenue, Monrovia, CA

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

Sales history for 321 North Mountain Avenue, Monrovia, CA 91016

Sale date Sale price Buyer name Seller name
09/30/2026 $1,420,000 XXXXXX, XXXXXXX XXXXXX; XXXXXX, XXXXXXXX XXXXX XXXXX, XXXX XXXX XXXXXXX; XXXXXX XXXXX XXX XXXX XXXX XXXXX XXXXXX XXXXX; XXXXX, XXXXXX XXXXXXX
02/13/2023 $1,272,500 XXXXX XXXX XXXX; XXXXX XXXXXX XXXXXXXXX XXXXXX X; XXXXXXXXX XXXXXX X
10/17/2003 $510,005 XXXXXXXXX, XXXXXX X & XXXXXX X XXXXXX, XXXXXXXX & XXXXX

*Most recent sales on record for this property.

More about Los Angeles County property records.

Title documents

Date Type Amount Party 1 Party 2
09/30/2026 Deed of Trust
09/30/2026 Deed XXXXX, XXXX XXXX XXXXXXX XXXXXX, XXXXXXX XXXXXX
05/01/2025 Grant Deed
(File correction)		 XXXXX XXXX XXXX XXXXX XXXX XXXX XXXXXXX
02/13/2023 Grant Deed
(Sale for consideration - full DTT - Single parcel sale)		 XXXXXXXXX XXXXXX X XXXXX XXXX XXXX
08/31/2021 Reconveyance
Substitution Trustee		 XXXXXXXX XXXXXXXXXX XXXXXXXXXXXX XXXXXXX XXX XXXXXXXXX XXXXXX X
08/19/2021 Trust Deed XXXXXXXXX XXXXXX X XXXXXXXXXX XXXX XXX
09/19/2017 Assignment of Rents
Financing Statement
Trust Deed		 XXXXXXXXX XXXXXX X XXXXXXXX XXXXX XXXX
04/06/2007 Trust Deed XXXXXXXXX XXXXXX X XXXXXXXXXX XXXXXX XXXX
02/02/2007 Trust Deed XXXXXXXXXX XXXXXX XXXX XXXXXXXXX XXXXXX X
08/11/2005 Trust Deed XXXXXXXXX XXXXXX X XXXXXXXXXX XXXXXX XXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 321 North Mountain Avenue, Monrovia, 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
$17,699
Current property tax
$18,439
Tax per sq. ft.
$7
Recent tax assessments
Market value
$1,377,392
Land value
$936,736
Building value
$440,656

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 $1,350,385 1.285 $17,352 +2.25%
2024-2025 $1,323,908 1.2818 $16,970 +62.62%
2023-2024 $817,495 1.2765 $10,435 +3.10%
2022-2023 $801,467 1.2629 $10,122 +1.93%
2021-2022 $785,753 1.2638 $9,930 +3.36%
2020-2021 $777,697 1.23539 $9,608 +3.92%
2019-2020 $747,500 1.236756 $9,245 +1.70%
2018-2019 $732,844 1.2404 $9,090 +2.06%
2017-2018 $718,475 1.2397 $8,907 +1.74%
2016-2017 $704,388 1.2429 $8,755 +2.31%

Special assessments & penalties for 321 North Mountain Avenue, Monrovia, CA

Code Description Tax levied
06215 County Sanitation District #15
03694 La County Regional Park And Open Space District
03071 Los Angeles County Flood Control
00170 Los Angeles County Trauma/Emerg Srvs
21297 Monrovia Ldscp & Light Maintenance District
21264 Monrovia Library Special Tax
21263 Monrovia Open Space Main Tax Hillside Maint
21262 Monrovia Open Space Tax Hillside Tax
21261 Monrovia Park Maintenance District
33736 Mwd Water Standby Charge #15
00177 Safe Clean Water Program Funding Measure W
06132 San Gabriel Valley Mosquito Abatement
36821 Upper San Gabriel Valley Municipal Water District
Permits

Permit information for 321 North Mountain Avenue, Monrovia, CA

No recently recorded permits for this property.

More about Los Angeles County property records

Neighborhood

Monrovia residential market stats

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

Median sale price

$1,080,000

6.5% Y-o-Y

Median price/sq. ft.

$691

-4.6% Y-o-Y

Los Angeles county median sale price

$870,000

-0.6% Y-o-Y

Check out recently sold homes in Monrovia and see how their prices compare.

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

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 321 North Mountain Avenue, Monrovia, CA 91016 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)
Wild Rose Elementary School 5 Public K-5 435 0.52
Oasis Trilingual Community School NR Private PK-6 41 0.53
Oasis Trilingual Community School NR Private PK-6 41 0.53
Bradoaks Elementary School 6 Public K-5 398 0.77
Immaculate Conception Catholic School NR Private PK, K-8 108 0.92
Immaculate Conception Catholic School NR Private PK, K-8 108 0.92
Immaculate Conception Annunciation Catholic School NR Private K-8 109 0.92
Monrovia Community Adult NR Public 0 1.06
Mountain Park School 5 Public K-12 90 1.06
Canyon Early Learning Center NR Public K 1 1.18
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Clifton Middle School 8 Public 6-8 589 0.72
Immaculate Conception Catholic School NR Private PK, K-8 108 0.92
Immaculate Conception Annunciation Catholic School NR Private K-8 109 0.92
Ica Catholic School NR Private K-8 156 0.93
Monrovia Community Adult NR Public 0 1.06
Mountain Park School 5 Public K-12 90 1.06
Opportunities For Learning - Duarte 2 Charter K-12 88 1.30
Calvary Road Baptist Academy NR Private K-12 21 1.32
First Lutheran School NR Private PK, K-8 0 1.68
Santa Fe Computer Science Magnet 5 Public 6-8 431 1.96
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Canyon Oaks High School 2 Public 9-12 33 1.05
Monrovia Community Adult NR Public 0 1.06
Mountain Park School 5 Public K-12 90 1.06
Opportunities For Learning - Duarte 2 Charter K-12 88 1.30
Calvary Road Baptist Academy NR Private K-12 21 1.32
Duarte High School 6 Public 9-12 764 1.70
California School Of The Arts - San Gabriel Valley 10 Charter 9-12 945 1.78
Monrovia High School 7 Public 9-12 1,538 1.84
Berean Baptist Academy NR Private K-12 36 1.90
Berean Baptist Academy NR Private K-12 32 2.32

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

Neighbors for 321 North Mountain Avenue, Monrovia, CA

306 N Bradoaks Ave, Monrovia 254 N Bradoaks Ave, Monrovia 333 Maryknoll Cir, Monrovia 357 N Mountain Ave, Monrovia 322 N Mountain Ave, Monrovia 314 N Bradoaks Ave, Monrovia 310 N Bradoaks Ave, Monrovia 337 Maryknoll Cir, Monrovia 362 Norumbega Dr, Monrovia 329 Maryknoll Cir, Monrovia 353 N Mountain Ave, Monrovia 250 N Bradoaks Ave, Monrovia 325 N Mountain Ave, Monrovia 316 N Mountain Ave, Monrovia 246 N Bradoaks Ave, Monrovia 405 Meadow Ln, Monrovia 341 Maryknoll Cir, Monrovia 349 N Mountain Ave, Monrovia 358 N Mountain Ave, Monrovia 345 Maryknoll Cir, Monrovia

Nearby ZIP codes for 321 North Mountain Avenue, Monrovia, CA

91008, Los Angeles County, CA 91010, Los Angeles County, CA 91024, Los Angeles County, CA 91104, Los Angeles County, CA 91107, Los Angeles County, CA 91108, Los Angeles County, CA 91706, Los Angeles County, CA 91722, Los Angeles County, CA 91723, Los Angeles County, CA 91731, Los Angeles County, CA 91732, Los Angeles County, CA 91733, Los Angeles County, CA 91746, Los Angeles County, CA 91770, Los Angeles County, CA 91775, Los Angeles County, CA 91776, Los Angeles County, CA 91780, Los Angeles County, CA

Frequently asked questions

What is the year built for 321 North Mountain Avenue, Monrovia, CA 91016?

The development at 321 North Mountain Avenue, Monrovia, CA 91016 was built in 1965.

What is the total square footage of 321 North Mountain Avenue, Monrovia, CA 91016?

321 North Mountain Avenue, Monrovia, CA 91016 has a total of 2,448 square feet.

When was 321 North Mountain Avenue, Monrovia, CA 91016 last sold and what was the sale price?

321 North Mountain Avenue, Monrovia, CA 91016 was last sold on 09/30/2026 for $1,420,000.

What is the assessed value of 321 North Mountain Avenue, Monrovia, CA 91016?

321 North Mountain Avenue, Monrovia, CA 91016 is currently assessed at $1,377,392.

What are the property taxes for 321 North Mountain Avenue, Monrovia, CA 91016?

The property taxes for 321 North Mountain Avenue, Monrovia, CA 91016 total $17,699.

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