Monica Olmos
Century 21 Masters
(626) 986-7539
46 Total Sales
1 in Walnut
$140,067 Price
21020 Cornerstone Dr Walnut, CA 91789
Walnut AreaEstimated Value: $891,000 - $1,079,000
4
Beds
3.5
Baths
1,830
Sq Ft
0.4
Acre Lot
Highlights
- Primary Bedroom Suite
- Wood Flooring
- High Ceiling
- Open Floorplan
- Main Floor Bedroom
- Granite Countertops
About This Home
As of July 20262018-built luxury condo located in the highly desirable Cornerstone community of Walnut, within walking distance to Walnut High School and Suzanne Middle School in the prestigious Walnut Valley Unified School District. This tastefully appointed 3-story home offers 4 bedrooms and 3.5 bathrooms, including a convenient main-level bedroom and full bath, perfect for guests or a home office.
The open-concept floor plan features a spacious living and dining area and a gourmet kitchen with a large center island, quartz and granite countertops, designer backsplash, stainless steel appliances, and ample cabinetry. Thoughtful designer finishes throughout include recessed lighting, custom two-tone paint, plantation shutters, remote-controlled motorized shades, and wood and tile flooring. Recent improvements include brand-new wood flooring in all bedrooms, a new dishwasher, and a new range hood.
Additional features include an upstairs laundry room, central air conditioning, an attached two-car garage, and a refrigerator, washer, and dryer included. Enjoy the community park featuring a children’s playground, BBQ area, and lush green spaces, along with the home’s prime location near shopping, dining, and major freeways. Move-in ready and available for immediate occupancy.
Last Agent to Rent the Property
Coldwell Banker Envision Brokerage Phone: 626-367-4368 License #01095604 Listed on: 07/06/2026
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Condo Details
Home Type
- Condominium
Year Built
- Built in 2018
Lot Details
- Two or More Common Walls
Parking
- 2 Car Attached Garage
Home Design
- Entry on the 1st floor
- Tile Roof
Interior Spaces
- 1,830 Sq Ft Home
- 3-Story Property
- Open Floorplan
- Built-In Features
- High Ceiling
- Recessed Lighting
- Family Room Off Kitchen
- Living Room
- Dining Room
Kitchen
- Open to Family Room
- Eat-In Kitchen
- Breakfast Bar
- Range Hood
- Dishwasher
- Kitchen Island
- Granite Countertops
- Quartz Countertops
- Disposal
Flooring
- Wood
- Tile
Bedrooms and Bathrooms
- 4 Bedrooms | 1 Main Level Bedroom
- Primary Bedroom Suite
- Walk-In Closet
- Upgraded Bathroom
- Quartz Bathroom Countertops
- Stone Bathroom Countertops
- Dual Vanity Sinks in Primary Bathroom
- Private Water Closet
- Bathtub
- Walk-in Shower
Laundry
- Laundry Room
- Dryer
- Washer
Outdoor Features
- Living Room Balcony
- Exterior Lighting
Schools
- Vejar Elementary School
- Suzanne Middle School
- Walnut High School
Utilities
- Central Heating and Cooling System
- Tankless Water Heater
Listing and Financial Details
- Security Deposit $5,500
- Rent includes association dues
- 12-Month Minimum Lease Term
- Available 7/8/26
- Tax Lot 43
- Tax Tract Number 73294
- Assessor Parcel Number 8720047086
Community Details
Overview
- Property has a Home Owners Association
- 162 Units
Amenities
- Laundry Facilities
Recreation
- Park
Pet Policy
- Call for details about the types of pets allowed
Ownership History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
Date
Name
Owned For
Owner Type
Purchase Details
Listed on
Jul 10, 2017
Closed on
Jun 19, 2017
Sold by
Bought by
Seller's Agent
January Lee
Coldwell Banker Envision
Buyer's Agent
Amie Chen
ReMax 2000 Realty
Sold Price
$3,000
Current Estimated Value
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Estimated Appreciation
$959,159
Original Mortgage
$424,000
Outstanding Balance
$332,447
Interest Rate
2.87%
Mortgage Type
New Conventional
Estimated Equity
$629,712
Home Values in the Area
Average Home Value in this Area
Agents Specializing in Walnut, CA
-
Monica Olmos
-
Betty Huang
Betty Huang
Latitude 33 Real Estate
(213) 471-7492
20 Total Sales
1 in Walnut
$1,380,000 Price
-
Joe Gold
Joe Gold
Coldwell Banker Realty
(858) 842-9187
24 Total Sales
1 in Walnut
$850,000 Price
-
Aaron Juarez
Aaron Juarez
Responds QuicklyColdwell Banker Icon
(855) 560-5718
91 Total Sales
1 in Walnut
$1,015,000 Price
-
Lan 'Gloria' Xiao
Lan 'Gloria' Xiao
Responds QuicklyRE/MAX ELITE REALTY
(562) 600-8264
117 Total Sales
1 in Walnut
$2,235,000 Price
-
Sal Salinas
Sal Salinas
RE/MAX Galaxy
(323) 827-7679
51 Total Sales
7 in Walnut
$404K - $1.4M Price Range
Purchase History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Buyer | Sale Price | Title Company |
|---|---|---|---|
| $709,500 | Fntg Builder Services |
Source: Public Records
Mortgage History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Status | Borrower | Loan Amount |
|---|---|---|---|
| Open | $424,000 |
Source: Public Records
Property History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 07/15/2026 07/15/26 | Rented | $3,850 | 0.0% | -- |
| 07/14/2026 07/14/26 | Off Market | $3,850 | -- | -- |
| 07/06/2026 07/06/26 | For Rent | $3,850 | +28.3% | -- |
| 03/09/2019 03/09/19 | Rented | $3,000 | 0.0% | -- |
| 01/21/2019 01/21/19 | For Rent | $3,000 | 0.0% | -- |
| 09/21/2018 09/21/18 | Rented | $3,000 | 0.0% | -- |
| 09/17/2018 09/17/18 | Off Market | $3,000 | -- | -- |
| 08/16/2018 08/16/18 | For Rent | $3,000 | 0.0% | -- |
| 08/04/2017 08/04/17 | Rented | $3,000 | 0.0% | -- |
| 07/10/2017 07/10/17 | For Rent | $3,000 | -- | -- |
Source: California Regional Multiple Listing Service (CRMLS)
Tax History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $10,150 | $823,430 | $290,145 | $533,285 |
| 2024 | $9,662 | $807,285 | $284,456 | $522,829 |
| 2023 | $9,421 | $791,457 | $278,879 | $512,578 |
| 2022 | $9,223 | $775,939 | $273,411 | $502,528 |
| 2021 | $9,049 | $760,725 | $268,050 | $492,675 |
| 2019 | $8,741 | $738,163 | $260,100 | $478,063 |
| 2018 | $8,473 | $723,690 | $255,000 | $468,690 |
Source: Public Records
Agents Affiliated with this Home
-
January Lee
Landlord's Agent in 2026
January Lee
Coldwell Banker Envision
(626) 367-4368
23 Total Sales
-
Liping Cai
L
Tenant's Agent in 2026
Liping Cai
Prestige Investment
(909) 396-8898
13 Total Sales
-
Orlando Parada
O
Buyer's Agent in 2018
Orlando Parada
Coldwell Banker Envision
(626) 826-9247
6 Total Sales
-
Amie Chen
Buyer's Agent in 2017
Amie Chen
RE/MAX
(626) 806-5266
60 Total Sales
Map
Source: California Regional Multiple Listing Service (CRMLS)
MLS Number: TR26146812
APN: 8720-047-086
Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.
The multiple listing data appearing on this website, or contained in reports produced therefrom, is owned and copyrighted by California Regional Multiple Listing Service, Inc. ("CRMLS") and is protected by all applicable copyright laws. Information provided is for viewer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties the viewer may be interested in purchasing. All listing data, including but not limited to square footage and lot size is believed to be accurate, but the listing Agent, listing Broker and CRMLS and its affiliates do not warrant or guarantee such accuracy. The viewer should independently verify the listed data prior to making any decisions based on such information by personal inspection and/or contacting a real estate professional.
Based on information from California Regional Multiple Listing Service, Inc. and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information
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