Highlights
Apartment Building
Cats and dogs allowed
Carport, off street
Pool
Gym
Updated 2 hours ago
1/53
Boulders at Katy Trail
100 Katy Trail Ln, Saint Charles, MO 63303
$1,479 - $2,007
1 - 3
Beds
1 - 2.5
Baths
Doesn't include required deposits and fees
Apartment floor plans
Matches1 Bed2 Beds3+ Beds
1 bed
1 bath766 sqft
Rent / mo
Available
Unit
$1,479
7/17/2026
135
$1,506
7/3/2026
120
$1,532
8/14/2026
095
2 beds
2 baths1,139 sqft
Rent / mo
Available
Unit
$1,691
6/26/2026
163
$1,731
7/17/2026
209
$1,731
7/31/2026
222
$1,771
6/27/2026
155
$1,771
7/16/2026
208
2 beds
2 baths1,079 sqft
Rent / mo
Available
Unit
$1,718
8/14/2026
080
$1,722
7/25/2026
236
$1,752
Now
014
2 beds
2 baths1,100 sqft
Rent / mo
Available
Unit
$1,872
Now
250
$1,882
6/12/2026
307
$1,912
5/29/2026
311
$1,918
8/14/2026
290
Commute
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About Boulders at Katy Trail
Luxury Living in St. Charles
The Boulders at Katy Trail Apartments offers 1-, 2-, and 3-bedroom apartments in St. Charles, MO. Our apartments feature walk-in closets, granite countertops, designer kitchens, built-in wine racks and bookshelves, full-size washer/dryer, and 9-foot ceilings with crown molding. Located in the heart of St. Charles, you'll have easy access to everything you need in the area. Enjoy the scenic landscape, just minutes away from the Katy Trail, the Missouri River, shops, and restaurants. Learn more about The Boulders at Katy Trail when you take a tour with us today.
Apartment amenities
Property amenities
- Administrative Fee: 300
- Barbecue
- Building Application Fee: 60
- Building Deposit Fee Maximum: 0
- Car Detailing Center
- Carport
- Fireplace
- Fitness Center
- Game Room
- Lakes and Water Features
- Off Street Parking
- On Demand Virtual Fitness
- Pet Park
- Pickleball Court
- Swimming Pool
- View Type: View
Unit amenities
- All Black Appliances
- First Floor
- Stainless Appliances
- Wood Look Floor
Pet policy
Cats allowed- $250 one time fee
- $25 monthly pet fee
- 2 pets max
- We welcome 2 pets per apartment. There is a one-time, non-refundable pet fee of $250 per pet. Pet rent is $25 per month per animal. We use a third-party pet screening company during the application process for all applicants to complete. Please contact our leasing office for complete Pet Policy information.
Dogs allowed- $250 one time fee
- $25 monthly pet fee
- 2 pets max
- We welcome 2 pets per apartment. There is a one-time, non-refundable pet fee of $250 per pet. Pet rent is $25 per month per animal. We use a third-party pet screening company during the application process for all applicants to complete. Please contact our leasing office for complete Pet Policy information.
Terms at Boulders at Katy Trail
Available months 6,7,8,9,10,11,12,13,14,15.
Office hours at Boulders at Katy Trail
Sunday: Closed
Monday: 8:30 AM to 5:00 PM
Tuesday: 8:30 AM to 5:00 PM
Wednesday: 8:30 AM to 5:00 PM
Thursday: 8:30 AM to 5:00 PM
Friday: 8:30 AM to 5:00 PM
Saturday: 10:00 AM to 4:00 PM
Monday: 8:30 AM to 5:00 PM
Tuesday: 8:30 AM to 5:00 PM
Wednesday: 8:30 AM to 5:00 PM
Thursday: 8:30 AM to 5:00 PM
Friday: 8:30 AM to 5:00 PM
Saturday: 10:00 AM to 4:00 PM
Nearby schools
Students who live in Boulders at Katy Trail attend the following Francis Howell R-III School District (Unified School District) public schools:
AllPrimaryMiddleHigh
Showing 3 of
4 schools.
GreatSchools ratings are based on test scores and additional metrics when available.
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Frequently asked questions
How many apartment units are available and what are their rents?
- There are 3 one-bedroom apartments available starting at $1,479
- There are 18 two-bedroom apartments available starting at $1,691
- There is 1 three-bedroom apartment available for $2,007