Key Takeaways
- The Town of Castle Rock does not regulate short-term rentals with an STR-specific permit or cap. Airbnb and Vrbo rentals are explicitly allowed within town limits.
- All STR operators must obtain a Town business license and collect both sales tax (4.2% town) and lodging tax (6.0%), totaling 10.2% to the Town alone before state and county taxes.
- Properties outside town limits in unincorporated Douglas County face a completely different regulatory framework, including a $500 first-year review fee, $130 annual license, inspections, and a designated local responsible agent.
- HOAs are the biggest restriction most Castle Rock hosts face. Colorado law allows HOAs to ban or restrict short-term rentals through their covenants.
- Castle Rock’s 199 active listings generate a median $34,114 per year with 70% occupancy and a $163 average daily rate, according to STRProfitMap data.
Are Short-Term Rentals Allowed in Castle Rock?
Yes. The Town of Castle Rock explicitly allows short-term rentals and does not impose STR-specific regulations, permits, caps, or zoning restrictions. According to the Town’s official FAQ, Castle Rock “does not regulate short term rentals such as Airbnb or VRBO.”
That said, “no STR-specific regulation” does not mean “no rules.” Every short-term rental in Castle Rock operates as a business, and the Town requires all businesses to obtain a business license and collect applicable taxes. The regulatory burden is lighter than most Colorado communities, but the tax obligations and HOA restrictions still require careful attention.
Castle Rock sits 30 miles south of downtown Denver and 35 miles north of Colorado Springs along the I-25 corridor. With a 2026 population of approximately 87,875, according to the U.S. Census Bureau, it is one of the fastest-growing communities in Colorado, expanding at roughly 2.72% annually. That growth has driven consistent demand for short-term lodging from families visiting the area, business travelers, and tourists drawn to Castlewood Canyon State Park and the historic downtown district.
The Business License Requirement
Every short-term rental operator in Castle Rock must obtain a Town business license before accepting guests. This is the same license required of any business operating within town limits, not an STR-specific permit.
The application process is straightforward. You apply through the Business and Tax Licensing portal at Town Hall, located at 100 N. Wilcox St., Castle Rock, CO 80104. The license must be renewed annually by December 31.
When you register for your business license, you also set up your tax remittance accounts for both sales tax and lodging tax. These are not optional add-ons. The Town expects you to begin collecting and remitting taxes from your first guest booking.
For questions about the application process, contact the Sales Tax Division at 303-660-1397 or visit the Town of Castle Rock Sales Tax Portal to apply online, file returns, or renew your license.
“Castle Rock’s approach is unusual for the Front Range,” says Brian Carberry, Senior Managing Editor at Apartment Guide. “Most Colorado communities of this size have added STR-specific licensing requirements. Castle Rock’s reliance on standard business licensing makes it one of the more operator-friendly markets in the Denver metro.”
Tax Obligations for Castle Rock STR Hosts
Short-term rental operators in Castle Rock owe multiple layers of tax on every guest booking. Understanding these rates is critical for setting nightly prices that protect your margins.
| Tax Type | Rate | Authority |
| Town Sales Tax | 4.20% | Castle Rock |
| Town Lodging Tax | 6.00% | Castle Rock |
| Douglas County Sales Tax | 1.00% | Douglas County |
| Colorado State Sales Tax | 2.90% | State |
| Combined Minimum Rate | 14.10% | All levels |
Castle Rock voters approved the 6% lodging tax in the November 2021 election, effective January 1, 2022. This tax applies to all sales of lodging, including short-term rentals. It is assessed on top of the existing sales tax rate, not instead of it.
According to the Castle Rock Revenue/Sales Tax page, returns must be filed and taxes remitted to the Town on a regular schedule. Platforms like Airbnb may collect and remit some taxes on your behalf, but you are ultimately responsible for confirming which taxes are being handled by the platform and which require direct remittance.
For vacation rental management clients, tax collection and remittance is typically handled by the management company, which removes one of the biggest compliance headaches for property owners.
Town Limits vs. Unincorporated Douglas County: Two Different Systems
One of the most important distinctions for Castle Rock area property owners is whether your property sits inside town limits or in unincorporated Douglas County. The rules are dramatically different.
Inside Castle Rock Town Limits
Properties within town limits follow the streamlined process described above: business license, tax collection, and HOA compliance. There is no STR-specific permit, no cap on the number of rentals, no occupancy formula mandated by the Town, and no inspection requirement.
Unincorporated Douglas County
Properties outside town limits fall under Douglas County’s short-term rental ordinance (O-023-003), which is far more restrictive:
License fees: $500 application review fee for first-year applicants, $270 for renewals, plus a $130 annual license fee. Your total first-year cost is $630 before you host a single guest.
Local responsible agent: You must designate a local contact person who can respond to issues at the property. This can be you or a third party, but the designation must be notarized.
Inspections: Douglas County may require Building Division and Health Department inspections, particularly for properties on septic systems (OWTS), which need a Use Permit from the Health Department.
Zoning restrictions: STRs are prohibited in many planned developments (PDs) unless the PD specifically allows them. This excludes large portions of the county, including Highlands Ranch and the Pinery area south of Parker.
Required documentation: Parking plan, renter information signage posted inside the property, written renter instructions, and an owner’s affidavit under penalty of perjury confirming life safety standards and signage placement.
If you are unsure whether your property falls inside town limits or in unincorporated Douglas County, use the Douglas County Zoning Lookup Tool to confirm your jurisdiction.
HOA Restrictions: The Biggest Variable
Castle Rock is a master-planned community market. The majority of residential neighborhoods are governed by homeowners associations, and HOAs represent the single biggest regulatory variable for STR operators in the area.
Under Colorado law, an HOA can restrict or ban short-term rentals, but only if the restriction is specifically stated in the declaration of covenants, conditions, and restrictions (CC&Rs). A general “residential use” clause is not automatically enough to prohibit STRs, though some HOAs have successfully argued otherwise.
Before investing in a Castle Rock property for short-term rental use, review your HOA’s governing documents carefully. Look for language addressing rental duration minimums, guest turnover frequency, or explicit prohibitions on “transient” or “vacation” rentals. If your CC&Rs are silent on the topic, you likely have the right to operate, but confirming with your HOA board directly is the safest approach.
For property owners already navigating HOA rules around short-term rentals, Castle Rock’s HOA landscape is consistent with what you find across the broader Colorado Springs and Denver metro markets.
Revenue Potential in Castle Rock
Castle Rock’s STR market performs well relative to other Front Range communities. According to STRProfitMap’s Castle Rock analysis, the market’s 199 active listings produce strong returns:
| Metric | Value |
| Active Listings | 199 |
| Median Annual Revenue | $34,114 |
| Average Daily Rate | $163 |
| Occupancy Rate | 70% |
| Top Performer Revenue | $50,318+/year |
| Platform Distribution | 50% Airbnb, 7% Vrbo, 43% Both |
The 70% occupancy rate is notably higher than many Colorado mountain town STR markets, which often hover in the 40-50% range due to seasonal demand patterns. Castle Rock benefits from year-round demand driven by its position between Denver and Colorado Springs, proximity to corporate offices in the Denver Tech Center (20 minutes north), and steady tourism to Castlewood Canyon State Park, the Castle Rock Outlets, and the historic downtown district.
AirDNA data shows active listings grew 8% year-over-year, with market saturation still rated as “mild” at 4 out of 12 months showing declining revenue. This suggests room for new operators, particularly those with differentiated properties.
“Castle Rock’s occupancy numbers reflect its unique position as both a bedroom community and a destination,” says an analyst at AirDNA. “Hosts who optimize for business travelers during the week and families on weekends consistently outperform the median.”
Step-by-Step: Getting Your Castle Rock STR Running
For properties inside Castle Rock town limits, the process is simple compared to most Colorado communities:
- Check your HOA.Review your CC&Rs for any rental restrictions. Contact your HOA board if the language is unclear.
**2. Apply for a business license.** Visit the Business and Tax Licensing portal or apply in person at Town Hall (100 N. Wilcox St.).
**3. Set up tax accounts.** Register for sales tax and lodging tax collection through the Sales Tax Portal.
- Secure proper insurance.Standard homeowners policies typically exclude commercial activity. Short-term rental insurancecovers liability gaps that arise from hosting paying guests.
- List your property.Create listings on Airbnb, Vrbo, and other platforms. Verify which taxes each platform collects on your behalf.
- File and remit taxes.Submit sales tax and lodging tax returns on the Town’s required schedule. Keep records of all guest stays and tax payments.
For property owners who prefer to skip the operational details and focus on earning, professional STR management handles licensing, tax compliance, guest communication, and day-to-day operations so you collect income without the workload.
How Castle Rock Compares to Nearby STR Markets
| Market | STR Permit? | Cost | Primary Res? | HOA Override? |
| Castle Rock (Town) | No | Business license only | No | Yes |
| Douglas County (Unincorp.) | Yes | $630 first year | No | Yes |
| Colorado Springs | Yes | $100-$250/year | No | Yes |
| Woodland Park | Yes | $35/year | Yes (residential) | N/A |
| Denver | Yes | $50-$500/year | Yes | Yes |
Castle Rock’s lack of STR-specific permitting, combined with no primary residence requirement, makes it one of the most investor-friendly markets along the I-25 corridor. The tradeoff is the 6% lodging tax, which pushes total tax obligations above 14%.
Frequently Asked Questions
Do I need a special STR permit to run an Airbnb in Castle Rock?
No. The Town of Castle Rock does not require an STR-specific permit. You need a standard Town business license and must collect and remit sales tax (4.2%) and lodging tax (6.0%). The business license is the same one required for any business operating in Castle Rock.
How much are the taxes on short-term rentals in Castle Rock?
The combined minimum tax rate is 14.1%, which includes 4.2% Town sales tax, 6.0% Town lodging tax, 1.0% Douglas County sales tax, and 2.9% Colorado state sales tax. Additional special district taxes may apply depending on your specific location.
Can my HOA block me from operating an Airbnb in Castle Rock?
Yes. Under Colorado law, HOAs can restrict or ban short-term rentals if the restriction is specifically stated in their CC&Rs. Review your HOA’s governing documents before investing in or listing a property for short-term rental use.
What is the difference between Castle Rock town limits and unincorporated Douglas County?
Properties inside Castle Rock town limits only need a business license and tax registration. Properties in unincorporated Douglas County require a county STR license ($630 first year), inspections, a designated local responsible agent, posted signage, and written renter instructions. STRs are prohibited in many Douglas County planned developments.
How much can I earn with an Airbnb in Castle Rock?
According to STRProfitMap data, the median Castle Rock host earns $34,114 per year with a $163 average daily rate and 70% occupancy. Top performers earn over $50,318 annually. The market has 199 active listings with mild saturation.
Is Castle Rock a good market for short-term rental investment?
Castle Rock offers a combination of light regulation, strong occupancy (70%), and year-round demand driven by its location between Denver and Colorado Springs. The main risks are HOA restrictions and the relatively high combined tax rate (14.1%). The market saturation score is low, suggesting room for new operators with differentiated properties.
Do I need to live in my Castle Rock property to rent it short-term?
No. Castle Rock does not impose a primary residence requirement for short-term rental operators. Both owner-occupied and investment properties can be listed, as long as you have a business license and comply with any HOA rules.
When is Castle Rock’s lodging tax due?
The 6% lodging tax, approved by voters in November 2021 and effective January 1, 2022, is collected alongside sales tax and remitted on the Town’s regular filing schedule. File through the Sales Tax Portal or contact the Sales Tax Division at 303-660-1397 for your specific filing frequency.
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