Search the lowest-cost Apartments available for rent right now in Castel Rock.
Learn the official definition (spending 30% or more of your gross income on housing) and how to calculate your exact rent-to-income ratio. This guide offers expert tips on factoring in total housing costs (including utilities and fees) and budgeting accurately to avoid unnecessary financial strain.
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| Bedroom | Average Rent | Cheapest Rent | Highest Rent |
|---|---|---|---|
| Castel Rock Studio Apartments | $1,855 | $1,435 | $2,578 |
| Castel Rock 1 Bedroom Apartments | $2,072 | $1,345 | $7,004 |
| Castel Rock 2 Bedroom Apartments | $2,529 | $1,305 | $10,000+ |
| Castel Rock 3 Bedroom Apartments | $2,946 | $1,305 | $10,000+ |
| Castel Rock 4 Bedroom Apartments | $1,918 | $1,570 | $3,671 |
The cheapest available apartment rental in Castel Rock, CO is a 2 Beds unit found at Mountainaire in the Main Campus neighborhood priced from $1,305. Nest on Osage - 8202 in the Southeast Boulder neighborhood has the second lowest priced unit, which is a 1 Bed apartment currently listed from $1,345. Here is today’s list of the most affordable Castel Rock apartments for rent:
| Apartment Listing | Model Name | Bed/Bath | Priced From |
|---|---|---|---|
| Mountainaire | 2BR/1BA | 2BR,1BA | $1,305 |
| Nest on Osage - 8202 | One Bedroom | 1BR,1BA | $1,345 |
| Nest on Thunderbird - 8203 | A1 | 1BR,1BA | $1,345 |
| Kimberly Court Apartments | Flagstaff | 1BR,1BA | $1,352 |
| East Village Flats | 3BR/2BA - A | 3BR,2BA | $1,385 |
| Flatiron View Apartments | Caribou | 1BR,1BA | $1,402 |
| Ralston Park Apartments | RPA-1x1(581) A | 1BR,1BA | $1,420 |
| Ezlyn Westminster | One Bedroom A1 | 1BR,1BA | $1,484 |
| Park Mesa | 1BR/1.0BA | 1BR,1BA | $1,495 |
| Arvada Court Apartments - Utilities included! | 2 Bedroom 2 Bath - West Side | 2BR,2BA | $1,550 |
As of July 04, 2026 the best value apartment in the Castel Rock area is the $1.44 price per square foot 4x4 Model at Saga Boulder in the in the Pearl Street Mall neighborhood starting from $1,727. The second greatest value Castel Rock apartment is the Grays Peak Model at Flatiron Flats Apartments starting at $2,453 with a $2.17 price per square foot in the Interlocken neighborhood. Here is today’s list of the best values for Castel Rock apartments based on price per square foot:
| Apartment Listing | Model Name | Bed/Bath | Price Per Sq.Ft. |
|---|---|---|---|
| Saga Boulder | 4x4 | 4BR,4BA | $1.44 |
| Flatiron Flats Apartments | Grays Peak | 2BR,2BA | $2.17 |
| Laguna Gardens | 2BR/1.5BA | 2BR,1.5BA | $2.20 |
| Simms Street 6155 | 2BR/1.0BA | 2BR,1BA | $1.75 |
| RockVue | Peak | 1BR,1BA | $2.09 |
| East Village Flats | 3BR/2BA - A | 3BR,2BA | $1.58 |
| Nest on Osage - 8202 | Two Bedroom | 2BR,1BA | $1.95 |
| Arvada Court Apartments - Utilities included! | 1BR/1BA | 1BR,1BA | $2.13 |
| Mohawk Green Apartments | One Bedrooms | 1BR,1BA | $2.25 |
| Mountainaire | 2BR/1BA - ALT | 2BR,1BA | $2.10 |
Explore dynamic Denver neighborhoods like Ballpark, Five Points, and East Westminster. Find the perfect apartment with a great lifestyle and easy access to major employers and cultural hubs.
Read ArticleDiscover the insider tips from an attorney and real estate agent on how to negotiate your next apartment lease. Find out what's on the table and what's not, so you can save money and get the best terms possible.
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Read ArticleFrom the letter A all the way to the letter Z, the Real Estate and Rental Term Glossary from the content team at ApartmentHomeLiving.com provides our visitors and shoppers with a little clarity and helpful guidance in navigating the real estate world through definitions and explainers for the top subjects and terms that someone may come across during the leasing, buying, or selling process.
Read ArticleThe common "Rule of Thumb" is that rent should be no more than 30% of your income. How much is that? Enter your monthly income and click "Calculate My Budget" to find out.
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Currently the most affordable Cheap Studio Apartment in Castel Rock is at The Parallel listed at $1,600.
The lowest price for a Cheap One Bedroom Castel Rock Apartment is $1,345 at Nest on Osage - 8202.
Today's best deal for a Cheap Two Bedroom Apartment in Castel Rock is starting from $1,305 at Mountainaire.
The best deal on a cheap Castel Rock Three Bedroom Apartment rental is at East Village Flats and starts from $1,385.
The rental experts at ApartmentHomeLiving.com provide you with top advice, tools, and tips for understanding the leasing process and finding the perfect rental. Here are a few helpful rental and leasing articles from our experts to guide you on your search.
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For so many of us, pets are the best companions and a big part of our lives. For this reason, a pet-friendly house or apartment is often a very important - and nonnegotiable - part of a move.
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