




- 1–3 Bedrooms
- $1,295-$2,152 Pricing
- 649–1,382 Square Feet
About Boulders at Katy Trail
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.
Boulders at Katy Trail is located in the St. Charles Neighborhood and 63303 Zip code of St. Charles, MO. This community is professionally managed by Mills Properties
Unique Features and Amenities
- Billiards Room
- Car Detailing Center
- Fire Pit and Gas Grill
- Indoor and Outdoor Pool
- Lakes and Water Features
- On Demand Virtual Fitness
- Pet Park
- Pickleball Court
Property Contact Info

- Listed by:
- Agency:
- Vendor Logo:
- Website:
- View Property Website
- Call Us:
- (314) 648-8339
- Disclaimer:
Office Hours
| Monday | 8:30 am–5:00 pm |
| Tuesday | 8:30 am–5:00 pm |
| Wednesday | 8:30 am–5:00 pm |
| Thursday | 8:30 am–5:00 pm |
| Friday | 8:30 am–5:00 pm |
| Saturday | 10:00 am–4:00 pm |
| Sunday | Closed |
Floorplan Pricing and Availability
Boulders at Katy Trail offers 1 to 3 Bedroom apartments starting from $1,295 and having 649–1,382 sq ft. Here is the current pricing and availability:
New! Interactive Property Map
1 Bedroom
Show Unavailable FloorplansCopper Mountain
From $1,540
1 Bed, 1 Bath, 856 sq ftAvailable Sep 4Largest 1 BedroomThis is the largest 1 Bedroom at this PropertyModel Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft View Details $1,584 September 4, 2026 189 856 $1,540 October 9, 2026 142 856 Model Amenities and Features
Kitchen
- Granite Countertops
- Kitchen
Model Rent and Fees
Model Price Range
- $1,540 - $1,584
Unit 189 Amenities and Features
Living Space
- Views
Unique Features
- Wood Look Floor
Unit 189 Rent and Fees
Unit Price
- $1,584
View Details and Rent EstimateModel Rent and Fees
Model Price Range
- $1,540 - $1,584
Unit 142 Amenities and Features
Unique Features
- Wood Look Floor
Unit 142 Rent and Fees
Unit Price
- $1,540
View Details and Rent EstimateModel Rent and Fees
Model Price Range
- $1,540 - $1,584
Apartment Model: Copper MountainFrom $1,5401 Bedroom, 1 Bath, 856 sq ftAvailable September 4, 2026![]()
Copper Mountain - Floorplan Apartment Unit: 189Apartment Model: Copper Mountain$1,5841 Bedroom, 1 Bath, 856 sq ftAvailable September 4, 2026Apartment Unit: 142Apartment Model: Copper Mountain$1,5401 Bedroom, 1 Bath, 856 sq ftAvailable October 9, 2026Keystone
From $1,295
1 Bed, 1 Bath, 766 sq ftAvailable Sep 11Cheapest 1 BedroomThis is the cheapest 1 Bedroom at this PropertyModel Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft View Details $1,413 September 11, 2026 185 766 $1,329 October 9, 2026 147 766 $1,376 October 16, 2026 129 766 Model Amenities and Features
Features
- High Speed Internet Access
- Smoke Free
Model Rent and Fees
Model Price Range
- $1,295 - $1,413
Current Available Pricing
- $1,329 - $1,413
Unit 185 Amenities and Features
Living Space
- Views
Unique Features
- Stainless Appliances
- Wood Look Floor
Unit 185 Rent and Fees
Unit Price
- $1,413
View Details and Rent EstimateModel Rent and Fees
Model Price Range
- $1,295 - $1,413
Unit 147 Amenities and Features
Features
- High Speed Internet Access
- Smoke Free
Unique Features
- Wood Look Floor
Unit 147 Rent and Fees
Unit Price
- $1,329
View Details and Rent EstimateModel Rent and Fees
Model Price Range
- $1,295 - $1,413
Unit 129 Amenities and Features
Features
- High Speed Internet Access
- Smoke Free
Unique Features
- Stainless Appliances
- Wood Look Floor
Unit 129 Rent and Fees
Unit Price
- $1,376
View Details and Rent EstimateModel Rent and Fees
Model Price Range
- $1,295 - $1,413
Apartment Model: KeystoneFrom $1,2951 Bedroom, 1 Bath, 766 sq ftAvailable September 11, 2026![]()
Keystone - Floorplan Apartment Unit: 185Apartment Model: Keystone$1,4131 Bedroom, 1 Bath, 766 sq ftAvailable September 11, 2026Apartment Unit: 147Apartment Model: Keystone$1,3291 Bedroom, 1 Bath, 766 sq ftAvailable October 9, 2026Apartment Unit: 129Apartment Model: Keystone$1,3761 Bedroom, 1 Bath, 766 sq ftAvailable October 16, 2026Park City
From $1,466
1 Bed, 1 Bath, 771 sq ftAvailable Sep 19Model Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft View Details $1,466 September 19, 2026 297 771 $1,473 October 2, 2026 281 757 Model Amenities and Features
Kitchen
- Granite Countertops
- Kitchen
Model Rent and Fees
Model Price Range
- $1,466 - $1,473
Unit 297 Amenities and Features
Unique Features
- All Black Appliances
- Wood Look Floor
Unit 297 Rent and Fees
Unit Price
- $1,466
View Details and Rent EstimateModel Rent and Fees
Model Price Range
- $1,466 - $1,473
Unit 281 Amenities and Features
Unique Features
- All Black Appliances
- Wood Look Floor
Unit 281 Rent and Fees
Unit Price
- $1,473
View Details and Rent EstimateModel Rent and Fees
Model Price Range
- $1,466 - $1,473
Apartment Model: Park CityFrom $1,4661 Bedroom, 1 Bath, 771 sq ftAvailable September 19, 2026![]()
Park City - Floorplan Apartment Unit: 297Apartment Model: Park City$1,4661 Bedroom, 1 Bath, 771 sq ftAvailable September 19, 2026Apartment Unit: 281Apartment Model: Park City$1,4731 Bedroom, 1 Bath, 757 sq ftAvailable October 2, 2026Aspen
1 Bed, 1 Bath, 649 sq ftModel Gallery
Floorplans
3D Tours
Availability Details
Availability Date Unit Sq Ft Call for Availability Aspen 649 sq ft Model Amenities and Features
Features
- High Speed Internet Access
- Smoke Free
Apartment Model: AspenCall For Rates1 Bedroom, 1 Bath, 649 sq ftUnavailableFloorplans3D Tours![]()
Aspen - Floorplan Aspen - 3D Tour 2 Bedrooms
Show Unavailable FloorplansSteamboat
$1,744
2 Beds, 2 Baths, 1139 sq ftAvailable Oct 2Cheapest 2 BedroomThis is the cheapest 2 Bedroom at this PropertyModel Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft $1,744 October 2, 2026 211 1139 Unit 211 Amenities and Features
Features
- Fireplace
Unique Features
- Wood Look Floor
Unit 211 Rent and Fees
Unit Price
- $1,744
View Details and Rent EstimateModel Rent and Fees
Price
- $1,744
Apartment Model: Steamboat$1,7442 Bedroom, 2 Bath, 1139 sq ftAvailable October 2, 2026![]()
Steamboat - Floorplan Apartment Unit: 211Apartment Model: Steamboat$1,7442 Bedroom, 2 Bath, 1139 sq ftAvailable October 2, 2026Breckenridge
$1,855
2 Beds, 2 Baths, 1100 sq ftAvailable Oct 30Model Gallery
Floorplans
3D Tours
Availability Details
Price Availability Date Unit Sq Ft $1,855 October 30, 2026 286 1100 Unit 286 Amenities and Features
Unique Features
- All Black Appliances
- Wood Look Floor
Unit 286 Rent and Fees
Unit Price
- $1,855
View Details and Rent EstimateModel Rent and Fees
Price
- $1,855
Apartment Model: Breckenridge$1,8552 Bedroom, 2 Bath, 1100 sq ftAvailable October 30, 2026Floorplans3D Tours![]()
Breckenridge - Floorplan Breckenridge - 3D Tour Apartment Unit: 286Apartment Model: Breckenridge$1,8552 Bedroom, 2 Bath, 1100 sq ftAvailable October 30, 2026Sun Valley
$1,969
2 Beds, 2.5 Baths, 1210 sq ftAvailable Sep 18Model Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft $1,969 September 18, 2026 228 1210 Unit 228 Amenities and Features
Features
- High Speed Internet Access
- Smoke Free
Unique Features
- Wood Look Floor
Unit 228 Rent and Fees
Unit Price
- $1,969
View Details and Rent EstimateModel Rent and Fees
Price
- $1,969
Apartment Model: Sun Valley$1,9692 Bedroom, 2.5 Bath, 1210 sq ftAvailable September 18, 2026![]()
Sun Valley - Floorplan Apartment Unit: 228Apartment Model: Sun Valley$1,9692 Bedroom, 2.5 Bath, 1210 sq ftAvailable September 18, 2026Deer Valley
From $2,143
2 Beds, 2.5 Baths, 1382 sq ftAvailable Sep 30Largest 2 BedroomThis is the largest 2 Bedroom at this PropertyModel Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft View Details $2,143 September 30, 2026 261 1382 $2,152 October 10, 2026 293 1382 Model Amenities and Features
Kitchen
- Granite Countertops
- Kitchen
Model Rent and Fees
Model Price Range
- $2,143 - $2,152
Unit 261 Amenities and Features
Features
- Fireplace
Unique Features
- All Black Appliances
- Wood Look Floor
Unit 261 Rent and Fees
Unit Price
- $2,143
View Details and Rent EstimateModel Rent and Fees
Model Price Range
- $2,143 - $2,152
Unit 293 Amenities and Features
Features
- Fireplace
Unique Features
- All Black Appliances
- Wood Look Floor
Unit 293 Rent and Fees
Unit Price
- $2,152
View Details and Rent EstimateModel Rent and Fees
Model Price Range
- $2,143 - $2,152
Apartment Model: Deer ValleyFrom $2,1432 Bedroom, 2.5 Bath, 1382 sq ftAvailable September 30, 2026![]()
Deer Valley - Floorplan Apartment Unit: 261Apartment Model: Deer Valley$2,1432 Bedroom, 2.5 Bath, 1382 sq ftAvailable September 30, 2026Apartment Unit: 293Apartment Model: Deer Valley$2,1522 Bedroom, 2.5 Bath, 1382 sq ftAvailable October 10, 2026Beaver Creek
2 Beds, 1 Bath, 1020 sq ftModel Gallery
Floorplans
3D Tours
Availability Details
Availability Date Unit Sq Ft Call for Availability Beaver Creek 1020 sq ft Model Amenities and Features
Kitchen
- Granite Countertops
- Kitchen
Apartment Model: Beaver CreekCall For Rates2 Bedroom, 1 Bath, 1020 sq ftUnavailableFloorplans3D Tours![]()
Beaver Creek - Floorplan Beaver Creek - 3D Tour Snowbird
2 Beds, 1 Bath, 1051 sq ftModel Gallery
Floorplans
Availability Details
Availability Date Unit Sq Ft Call for Availability Snowbird 1051 sq ft Model Amenities and Features
Kitchen
- Granite Countertops
- Kitchen
Apartment Model: SnowbirdCall For Rates2 Bedroom, 1 Bath, 1051 sq ftUnavailable![]()
Snowbird - Floorplan Vail
2 Beds, 2 Baths, 1079 sq ftModel Gallery
Floorplans
3D Tours
Availability Details
Availability Date Unit Sq Ft Call for Availability Vail 1079 sq ft Model Amenities and Features
Features
- High Speed Internet Access
- Smoke Free
Apartment Model: VailCall For Rates2 Bedroom, 2 Bath, 1079 sq ftUnavailableFloorplans3D Tours![]()
Vail - Floorplan Vail - 3D Tour Winter Park
2 Beds, 2 Baths, 1082 sq ftModel Gallery
Floorplans
Availability Details
Availability Date Unit Sq Ft Call for Availability Winter Park 1082 sq ft Model Amenities and Features
Kitchen
- Granite Countertops
- Kitchen
Apartment Model: Winter ParkCall For Rates2 Bedroom, 2 Bath, 1082 sq ftUnavailable![]()
Winter Park - Floorplan 1 ![]()
Winter Park - Floorplan 2 3 Bedrooms
Innsbrook
$2,109
3 Beds, 2 Baths, 1305 sq ftAvailable Oct 17Model Gallery
Floorplans
Availability Details
Price Availability Date Unit Sq Ft $2,109 October 17, 2026 175 1305 Unit 175 Amenities and Features
Features
- High Speed Internet Access
- Smoke Free
Unique Features
- Stainless Appliances
- Wood Look Floor
Unit 175 Rent and Fees
Unit Price
- $2,109
View Details and Rent EstimateModel Rent and Fees
Price
- $2,109
Apartment Model: Innsbrook$2,1093 Bedroom, 2 Bath, 1305 sq ftAvailable October 17, 2026![]()
Innsbrook - Floorplan Apartment Unit: 175Apartment Model: Innsbrook$2,1093 Bedroom, 2 Bath, 1305 sq ftAvailable October 17, 2026
Schedule a Tour
Videos
3D Tours
Property Information
- 314 Units
- 3 Stories
- Built in 2002
Lease Terms
- 6 - 15 mo
- Short Term Lease Options
Fees and Policies
The fees listed below are community-provided and may exclude utilities or add-ons. All payments are made directly to the property and are non-refundable unless otherwise specified. Use the Cost Calculator to determine costs based on your needs.
Required Fees
One-Time Basics
- Due at Application
- Application Fee Per ApplicantiCharged per applicant.$60.00
- Due at Move-In
- Administrative FeeiCharged per unit.$300.00
Other Fees and Policies
Pet Fees
- Cat
- One-Time Pet FeeiMax of 2. Charged Per Pet.$250.00
- Monthly Pet FeeiMax of 2. Charged Per Pet.$25.00
- Dog
- Monthly Pet FeeiMax of 2. Charged Per Pet.$25.00
- One-Time Pet FeeiMax of 2. Charged Per Pet.$250.00
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.
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.
Max of 2.
Parking Fees
- Other
- Parking DepositiCharged per vehicle.$0.00
- Parking FeeiCharged Per Vehicle.$65.00/mo
- Surface Lot
- Parking DepositiCharged per vehicle.$0.00
We have open, surface lot parking for residents. We also offer carports and detached garages. Please contact the leasing office for rates and availability.
We have open, surface lot parking for residents. We also offer carports and detached garages. Please contact the leasing office for rates and availability.
Storage Fees
- Storage Unit
- Storage DepositiCharged per rentable item.$0.00
- Storage RentiCharged per rentable item.$50.00/mo
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.
Features and Amenities
Unique Amenities
- Billiards Room
- Car Detailing Center
- Fire Pit and Gas Grill
- Indoor and Outdoor Pool
- Lakes and Water Features
- On Demand Virtual Fitness
- Pet Park
- Pickleball Court
Community Features
- Corporate Housing
Outdoor Features
- Grill
Recreation and Fitness
- Fitness Center
- Walking/Biking Trails
- Pickleball Court
- Pool
Kitchen Amenities
- Kitchen
- Granite Countertops
Living Area Features
- Walk In Closets
- Crown Molding

Map
- Shopping
- Colleges
- Grocery
- Medical

Map
Getting Around
30 / 100 Somewhat walkable
40 / 100 Fairly bikeable
100 / 100 Exceptionally car friendly
Getting to Know the Area
40 / 100 Restaurants
20 / 100 Cafes
20 / 100 Nightlife
20 / 100 Shopping
60 / 100 Parks
50 / 100 Noise Level
Frequently Asked Questions about Boulders at Katy Trail
Where is Boulders at Katy Trail located?
Boulders at Katy Trail is located at 100 Katy Trail Ln near the St. Charles area of St. Charles, MO
What is the current rent range at Boulders at Katy Trail?
1 Bedroom to 3 Bedroom Apartments at Boulders at Katy Trail currently range from $1,295 to $2,152
When is the leasing office open?
- The office Hours for Boulders at Katy Trail are
- Monday 8:30 am–5:00 pm
- Tuesday 8:30 am–5:00 pm
- Wednesday 8:30 am–5:00 pm
- Thursday 8:30 am–5:00 pm
- Friday 8:30 am–5:00 pm
- Saturday 10:00 am–4:00 pm
- Sunday Closed
Are pets allowed?
Call us today to find out our pet policy and if we allow pets
Renters Reviews and Ratings
I love this complex!
Property Manager Responded
Do not be tempted to live here
Property Manager Responded
Beautiful Complex
Property Manager Responded
Amazing Location and Friendly Neighborhood!
Property Manager Responded
Amazing Complex
Property Manager Responded
Gorgeous property!
Property Manager Responded
I would rent here again
Property Manager Responded
l LOVE living here!
Nearby Schools
Harvest Ridge Elementary
About GreatSchools Data on ApartmentHomeLiving.com.
Points of Interest
Time and distance from Boulders at Katy Trail.
Big Box and Retail
Walgreens
Walmart
Petsmart
Colleges and Universities
Chamberlain College of Nursing-Saint Louis - Saint Louis Campus
Groceries
Aldi
Schnucks
Whole Foods
Hospitals
Military Bases
Lambert-St Louis Air National Guard
Shopping Centers
Boulders at Katy Trail has 5 shopping centers within 1.8 miles.
Nearby Neighborhoods
Rental Price Ranges in the Area
| Bedroom | Average Rent | Cheapest Rent | Highest Rent |
|---|---|---|---|
| St. Charles Studio Apartments | $1,287 | $969 | $2,048 |
| St. Charles 1 Bedroom Apartments | $1,474 | $875 | $2,317 |
| St. Charles 2 Bedroom Apartments | $1,783 | $950 | $3,271 |
| St. Charles 3 Bedroom Apartments | $2,020 | $1,500 | $3,483 |
| St. Charles 4 Bedroom Apartments | $3,879 | $2,327 | $6,970 |
| 2 Bedroom Homes | $1,562 | $995 | $1,995 |
| 3 Bedroom Homes | $2,328 | $1,895 | $2,775 |
| 4 Bedroom Homes | $3,047 | $2,100 | $4,500 |
| 5 Bedroom Homes | $3,349 | $3,349 | $3,349 |
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Max of 2.