851 Alumroot Street
Castle Rock, CO, 80104 $ 1,148,300
Bedrooms3 Baths2.1 Sq 2,818 Monthly Estimate*
$ 7,250
for $1,148,300 with 3 bedrooms and 2 full baths, 1 half bath. This 2,818 square foot home was built in 2022 on a lot size of 0.28.
Welcome to effortless main-level living in Montaine’s sought-after Regency Collection, Castle Rock’s premier 55+ luxury community. Set in a friendly cul-de-sac where neighbors connect through holiday gatherings and everyday support, this home offers the peace of mind that comes from living among people who truly care. The open-concept floor plan is filled with natural light and features high ceilings, wide plank flooring, and a stunning great room with front range views, gas fireplace and large nesting sliding glass doors, creating a seamless indoor-outdoor flow perfect for entertaining. Electronic window coverings throughout the home add modern convenience and a polished finish. The gourmet kitchen is the heart of the home, showcasing an oversized island, custom cabinetry, quartz and granite countertops, double ovens, walk-in pantry, and generous prep space—ideal for both everyday living and hosting. The primary suite is a private retreat, complete with its own gas fireplace, radiant heated floors in the spa-inspired five-piece bath, and a spacious walk-in closet. A secondary bedroom with ensuite bath and a dedicated home office provide flexibility for guests, hobbies, or work-from-home needs. Convenient main-level laundry enhances ease of living. Step outside to the covered composite deck and enjoy open views and peaceful surroundings. The south-facing driveway naturally melts snow, a thoughtful Colorado convenience. Additional highlights include owned solar panels, central A/C, an oversized 3-car garage with EV hookup, and a level, professionally landscaped lot. The walk-out basement is unfinished and ready for future expansion. Montaine offers a true resort lifestyle with pickleball, tennis, bocce, lap and lounge pool, spa, clubhouse, fitness center, and over 13 miles of trails across 548 acres of open space. Snow removal and trash are included. This is downsizing done right—luxury, comfort, and community in one exceptional home.
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FeaturesGeneralLiving Area 2818.0
Sewer Sewer
Heating Forced Air Radiant
Cooling Central Air
Utilities Cable Available Electricity Connected Natural Gas Connected Telephone
Roof Composite Shingle
Appliances Cook Top Dishwasher Disposal Double Oven Microwave Oven Oven Range Refrigerator Self Cleaning Oven
HOA Fee 0.0
Patio/Porch Features Covered Wood Deck
Year Built 2022
Miscellaneous High Speed Internet Avail. Kitchen Pantry Security System Window Coverings
Property Subtype Single Family
Tax Year 2025
Parcel Number 250526415033
Community Features Club House Fitness Center Hiking or Biking Trails Pool Spa Tennis
Assoc Fee Paid Per Not Applicable
County Douglas
Property Type Residential
Association Amenities Qual as a 55+ Comm
HOA Y
Full Baths 2
Status Pending
High School Douglas Co
City Castle Rock
High School District Douglas RE1
Lot Size Units Acres
Lot Size Square Feet 12196.8
Elementary School South Ridge
Property Attached Y/N N
Tax Annual Amount 9237.0
Middle/Junior High School Mesa
Lot Description 360-degree View Cul-de-sac Level Meadow
MLS Area Minor Lanterns
Additional Parcels Y/N N
Assessments Y/N N
Structure Type Frame
Standard Status Pending
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InteriorInterior Amenities 5-Pc Bath Great Room
Basement Walk Out
Flooring Carpet Tile Wood
Fireplace Features Gas Main Level Two
Entry Wood Laminate
Above Grade Finished Area 2818.0
Half Baths 1
3/4 Baths 0
Laundry Features Main
Total Bedrooms 3
Total Baths 3
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ExteriorSiding Stone
Fencing Rear
Water Source Municipal
Total Parking 3.0
Driveway Paved
Garage Type Attached
Lot Location Hiking Trail
Lot Size 0.28
Building Area Total 5636.0
Lot Size Acres 0.28
Road Frontage Type Paved
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* Excluded FeaturesList ByRe/Max ProfessionalsBroker
Affordability Calculator
- Monthly Principal & Interest
- $7,250
- Monthly Property Taxes
- $770
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save NearbySingle family listings in Castle Rock, CO
Average List Price $1,047,455
Percent of Sale Price 9%
About Castle Rock, CO 62,742 Population
192% Since 2002
$ 95,735 Median Income
36.96 Median Age
45% Households with Children
Trends Information provided by ATTOM Data Solutions.
5519474 Elementary School
5519543 Middle School
Douglas Co High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 5/15/2026 | $1,148,300 | -4.22% | Price Down |
| 4/7/2026 | $1,198,888 | -4.09% | Price Down |
| 4/1/2026 | $1,250,000 | | Listed Price |