
20992 Cornerstone Dr, Walnut, CA 91789
Room for Rent
This listing offers a private bedroom within a shared property. You may share common spaces like the kitchen, living room, and possibly bathrooms with other renters or the property owner.
What This Condo Offers
Welcome to this beautifully maintained corner end-unit home in the highly desirable Astoria at Cornerstone community. Offering 4 bedrooms, 3.5 bathrooms, and... approximately 1,983 sq ft of living space, this bright and spacious residence features high ceilings, contemporary finishes, and abundant natural light throughout. The first level includes a private bedroom with ensuite bath, ideal for guests, extended family, or a home office. The main living area on the second floor features wood flooring, an open-concept living and dining area, a private balcony, powder room, and a modern kitchen with a large center island, quartz/granite countertops, and ample cabinet storage. The top floor offers 3 additional bedrooms, including a spacious primary suite with private bath, plus two secondary bedrooms, a hall bathroom, and a convenient upstairs laundry room. Additional highlights include central A/C and heat, an attached 2-car garage, and an excellent location within walking distance to Walnut High School and Suzanne Middle School, both part of the highly regarded Walnut Valley Unified School District. Conveniently located near freeway access, Metrolink stations, shopping, dining, and everyday amenities. Move-in ready in late April. Pets considered with additional deposit. MLS# SB26083944
Unit
- $4,200 / month
- 4 Beds
- 4 Baths
- 1983 sq. ft.
- Available Now
Condo Features
- Air Conditioning
- Balcony
- Dining Room
- Dishwasher
- Disposal
- Granite Countertops
- Heating
- Range
- Refrigerator
- Washer/Dryer Hookup
Community Features
- Garages
20992 Cornerstone Dr is a room for rent in Walnut, CA
Fees and Policies
The fees below are based on community-supplied data and may exclude additional fees and utilities.
One-Time Basics
Due at Move-In
- Security Deposit - Refundable$5,800
- Garage Attached
- Garage
Dogs
- Dogs Allowed
Cats
- Cats Allowed
Property Fee Disclaimer Based on community-supplied data and independent market research. Subject to change without notice. May exclude fees for mandatory or optional services and usage-based utilities.
Condo Details
Home Design
- Built in 2018 | Remodeled
- Spanish Tile Roof
- Condominium
- Concrete Roof
- Entry on the 1st floor
Interior Spaces
- Open Floorplan
- High Ceiling
- Great Room
- Family Room Off Kitchen
- Recessed Lighting
- Dining Room
- Entryway
- 1983 Sq Ft Home
- 3-Story Property
- Wired For Data
Kitchen
- Granite Countertops
- Quartz Countertops
- Open to Family Room
- Eat-In Kitchen
- Kitchen Island
- Gas Range
- Dishwasher
- Disposal
- Water Line To Refrigerator
Bedrooms and Bathrooms
- Double Master Bedroom
- 4 Bedrooms | 1 Primary Bedroom on Main
- Walk-In Closet
- Bathtub with Shower
- Upgraded Bathroom
- Walk-in Shower
- 3.5 Bathrooms
- Exhaust Fan In Bathroom
- Closet In Bathroom
- 4 Bedrooms | 4 Bathrooms
- Dual Vanity Sinks in Primary Bathroom
- Private Water Closet
Laundry
- Laundry Room
- Laundry on upper level
- Washer and Gas Dryer Hookup
Home Security
- Home Security System
- Carbon Monoxide Detectors
Parking
- 2 Car Direct Access Garage
- Parking Available
Outdoor Features
- Balcony
- Rain Gutters
- Exterior Lighting
Lot Details
- 17474 Sq Ft Lot
- No Units Above
- End Unit
- No Units Located Below
- 1 Common Wall
Location
- Suburban Location
Schools
- Vejar Elementary School
- Suzanne Middle School
- Walnut High School
Utilities
- Tankless Water Heater
- Forced Air Zoned Heating and Cooling System
- Heating System Uses Natural Gas
- Cable TV Available
- Phone Available
- Underground Utilities
- Public Water Source
- Electricity Connected
- Natural Gas Connected
- Sewer Connected
- Water Connected
- Public Sewer
Listing and Financial Details
- Security Deposit $5,800
- 12-Month Minimum Lease Term
- Available 2026-04-20
- Tax Lot 42
- Tax Tract Number 73294
- Assessor Parcel Number 8720047076
- Rent includes association dues
Community Details
Overview
- 61 Units
- Property has a Home Owners Association
Pet Policy
- Dogs and Cats Allowed
- Pet Deposit $500
Explore Commute Options
- Drive Time--
- Walk Time--
- Bike Ride Time--
- Public Transit--
Get In Touch
Walnut, CA 91789

Copyright 2026 © California Regional MLS. All rights reserved.
Area Scores
Walkability
Somewhat walkable30 / 100
Transit
Limited public transit30 / 100
Driveability
Exceptionally drivable100 / 100
Bikeability
Fairly bikeable50 / 100
Travel and Transit






Local Education
Colleges and Universities
School
Commute Time (Distance)
Mt. San Antonio College
Drive: 5 min (2.9 mi)
Cal Poly Pomona
Drive: 9 min (4.4 mi)
DeVry University-California
Drive: 10 min (4.9 mi)
Western Health Scis., Pomono
Drive: 14 min (7.8 mi)
Discover Walnut Valley, Walnut, CA
Shopping Centers
Shoppers will appreciate 20992 Cornerstone Dr proximity to Walnut Shopping Center, The Marketplace at Grand Crossing West, and The Village. Walnut Shopping Center is 0.5 miles away, and The Marketplace at Grand Crossing West is within a 21 minute walk.
Commuting
With a TransitScore of 30, 20992 Cornerstone Dr has limited public transit, including 8 transit stops within 12.9 miles. Transit options include Apu / Citrus College Station and Azusa Downtown Station.
Airports
Living in Walnut Valley provides easy access to Ontario International, located just 26 minutes from 20992 Cornerstone Dr. Another nearby airport is Long Beach (Daugherty Field), located 33.3 miles away.
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