3621 21st St Boulder, CO 80304
North Boulder NeighborhoodEstimated payment $68,267/month
Highlights
- Media Room
- Private Pool
- Open Floorplan
- Centennial Middle School Rated A-
- 0.66 Acre Lot
- 5-minute walk to Catalpa Park
About This Home
Meticulously crafted, masterfully built, and expertly curated with an elevated design, this custom home is a true masterpiece, perfectly situated on a premier lot in the exclusive Carolyn Heights neighborhood, The exquisite design and inspiring architecture of this exceptional residence ensures that every facet embodies luxury, casual elegance, and attention to detail, harmoniously blending wood, glass, stone, and steel to create an ambiance that is both inviting and inspiring. Upon entry, you'll be greeted by soaring ceilings, wide plank white oak flooring, & an open-concept main level bathed in abundant natural light streaming through expansive windows, inviting the outside in. The prodigious living area seamlessly integrates indoor & outdoor spaces, offering a glimpse of the splendid living experience that awaits. The architectural grandeur is showcased w/ a dramatic three-story open-tread wooden staircase, custom steel railings, & illuminated by bespoke lighting. The centerpiece of the home, the gourmet kitchen, boasts an impressive center island, marble & quartz countertops, artisanal tile, custom cabinetry, top-tier chef's appliances, & walk-in pantry. The elegant main floor primary bedroom suite is a tranquil retreat, w/ wall-to-wall windows, a generous walk-in closet w/custom cabinetry. The soothing primary bathroom features premium quality finishes, including designer tile, custom cabinetry, & alluring lighting.The heated pool w/ a tanning shelf, natural stone deck, & automatic pool cover takes center stage in the serene yard. Every aspect of this smart home seamlessly integrates technology, design, & automation to ensure security & convenience, and efficiency. For the discerning owner desiring a residence that embodies casual elegance & architectural interest, w/proximity to vibrant downtown Boulder & nestled in an upscale neighborhood, this property is a rare find that offers an unsurpassed lifestyle.
Listing Agent
Compass - Boulder Brokerage Phone: 3034756097 License #100075516 Listed on: 02/11/2026
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $55,752
Year Built
- Built in 2021
Lot Details
- 28,750 Sq Ft Lot
- Southern Exposure
- Fenced
- Level Lot
- Wooded Lot
Parking
- 3 Car Attached Garage
- Garage Door Opener
- Driveway Level
Home Design
- Composition Roof
- Stone
Interior Spaces
- 7,099 Sq Ft Home
- 2-Story Property
- Open Floorplan
- Wet Bar
- Bar Fridge
- Gas Fireplace
- Window Treatments
- Living Room with Fireplace
- Dining Room
- Media Room
- Recreation Room
- Wood Flooring
- Basement Fills Entire Space Under The House
Kitchen
- Eat-In Kitchen
- Double Oven
- Microwave
- Freezer
- Dishwasher
- Kitchen Island
- Trash Compactor
- Disposal
Bedrooms and Bathrooms
- 4 Bedrooms
- Main Floor Bedroom
- Walk-In Closet
- Primary bathroom on main floor
- Steam Shower
Laundry
- Laundry Room
- Laundry on main level
- Dryer
- Washer
- Sink Near Laundry
Home Security
- Home Security System
- Fire Sprinkler System
Outdoor Features
- Private Pool
- Patio
Schools
- Crest View Elementary School
- Centennial Middle School
- Boulder High School
Utilities
- Central Air
- Radiant Heating System
- Cable TV Available
Community Details
- No Home Owners Association
- Carolyn Heights Subdivision
Listing and Financial Details
- Assessor Parcel Number R0004965
Map
Home Values in the Area
Average Home Value in this Area
Tax History
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $55,752 | $591,975 | $70,381 | $521,594 |
| 2024 | $55,752 | $591,975 | $70,381 | $521,594 |
| 2023 | $54,784 | $634,376 | $159,514 | $478,548 |
| 2022 | $14,600 | $157,223 | $157,223 | $0 |
| 2021 | $13,922 | $161,747 | $161,747 | $0 |
| 2020 | $13,665 | $156,993 | $68,569 | $88,424 |
| 2019 | $13,456 | $156,993 | $68,569 | $88,424 |
| 2018 | $12,859 | $148,313 | $69,048 | $79,265 |
| 2017 | $12,456 | $163,968 | $76,336 | $87,632 |
| 2016 | $12,664 | $146,297 | $58,506 | $87,791 |
| 2015 | $11,992 | $117,999 | $65,192 | $52,807 |
| 2014 | $9,921 | $117,999 | $65,192 | $52,807 |
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft | Prior Sale |
|---|---|---|---|---|---|
| 02/28/2026 02/28/26 | Price Changed | $12,000,000 | -7.7% | $1,690 / Sq Ft | |
| 02/11/2026 02/11/26 | For Sale | $13,000,000 | +30.0% | $1,831 / Sq Ft | |
| 06/13/2022 06/13/22 | Sold | $10,000,000 | 0.0% | $1,380 / Sq Ft | View Prior Sale |
| 01/08/2022 01/08/22 | Pending | -- | -- | -- | |
| 01/08/2022 01/08/22 | For Sale | $10,000,000 | -- | $1,380 / Sq Ft |
Purchase History
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Special Warranty Deed | -- | None Listed On Document | |
| Special Warranty Deed | -- | None Listed On Document | |
| Warranty Deed | $2,409,000 | Land Title Guarantee Co | |
| Warranty Deed | $1,473,500 | Land Title Guarantee Company | |
| Warranty Deed | $1,304,000 | Land Title Guarantee Company | |
| Warranty Deed | $512,000 | -- |
Mortgage History
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Previous Owner | $1,178,800 | Purchase Money Mortgage | |
| Previous Owner | $875,000 | Purchase Money Mortgage | |
| Closed | $0 | Purchase Money Mortgage |
Source: IRES MLS
MLS Number: IRE1051395
APN: 1463191-07-005
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