Buyer financing incentive available! Qualified buyers may be eligible for a lender-paid 1-0 temporary interest rate buydown, providing a reduced monthly payment during the first year of the loan. Program eligibility, underwriting approval, and lender terms apply. Contact agent. This beautiful contemporary residence offers 4 bedrooms and 4 bath, blending bold design with modern functionality. From the moment you enter, the inlaid mosaic flooring accent and soaring ceilings will be sure to grab your attention. Custom-colored acrylic floors, washed in natural light and a dramatic steel staircase, wrapped in windows, create a gallery-like aesthetic while the open-concept layout invites effortless living and entertaining. The chef's kitchen features imported cabinetry, an oversized island with seating and storage, and a suite of premium appliances. The second-level primary suite offers a private retreat with fireplace, dual walk-in closets, a spa-inspired bath complete with radiant heated floors and an oversized steam shower. 2 additional bedrooms and a full bath complete the 2nd level. One level above, an expansive rooftop deck and enclosed wet bar create a true indoor-outdoor living experience. The finished basement provides flexible space for additional living, work, or recreation. A detached carriage house studio apartment offers an exceptional income-producing rental opportunity. Outdoors, a private patio and tranquil backyard create a quiet escape. Sitting on a peaceful street across from a park enhances both privacy and livability. The detached 3-car garage plus additional parking, ensures space for vehicles and guests. Prospect offers a vibrant, lifestyle with walkability to restaurants, shops, and so much more. Distinctive, expressive, and truly one of a kind, this residence is for the buyer who values architecture, creativity, and a home that leaves a lasting impression.
For sale
Price cut: $15K (6/30)
$1,580,000
821 Incorrigible Cir, Longmont, CO 80504
5beds
5,572sqft
Mixed Use
Built in 2001
5,443 Square Feet Lot
$-- Zestimate®
$284/sqft
$110/mo HOA
What's special
Expansive rooftop deckCustom-colored acrylic floorsGallery-like aestheticSuite of premium appliancesInlaid mosaic flooring accentDual walk-in closetsSoaring ceilings
- 75 days |
- 796 |
- 17 |
Zillow last checked:
Listing updated:
Listed by:
Terra Brewer 720-745-9962,
Compass - Boulder,
David Rogers 303-854-8278,
Compass - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1056681
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Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 5
- Full bathrooms: 3
- 3/4 bathrooms: 1
- 1/2 bathrooms: 1
- Main level bathrooms: 1
Primary bedroom
- Description: Wood
- Features: Luxury Features Primary Bath
- Level: Upper
- Area: 240 Square Feet
- Dimensions: 15 x 16
Kitchen
- Description: Concrete
- Level: Main
- Area: 210 Square Feet
- Dimensions: 14 x 15
Living room
- Description: Concrete
- Level: Main
- Area: 360 Square Feet
- Dimensions: 15 x 24
Heating
- Forced Air
Cooling
- Central Air
Appliances
- Included: Gas Range, Dishwasher, Refrigerator, Bar Fridge, Washer, Dryer, Microwave, Disposal
- Laundry: Washer/Dryer Hookup
Features
- Eat-in Kitchen, Open Floorplan, Walk-In Closet(s), Wet Bar, Steam Shower
- Flooring: Wood
- Windows: Window Coverings
- Basement: Built-In Radon,Sump Pump
- Has fireplace: Yes
- Fireplace features: Gas, Living Room, Bedroom
Interior area
- Total structure area: 3,643
- Total interior livable area: 5,572 sqft
- Finished area above ground: 3,643
Video & virtual tour
Property
Parking
- Total spaces: 3
- Parking features: Garage Door Opener, Detached, Oversized
- Garage spaces: 3
- Details: Detached
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio, Deck
- Exterior features: Sprinkler System
- Fencing: Partial
- Has view: Yes
- View description: Mountain(s)
Lot
- Size: 5,443 Square Feet
- Features: Paved, Curbs, Sidewalks
Details
- Additional structures: Carriage House
- Parcel number: R0141170
- Zoning: RES
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Includes Rental Unit,Contemporary
- Property subtype: Mixed Use
Materials
- Frame, Stucco
- Roof: Composition,Metal
Condition
- New construction: No
- Year built: 2001
Utilities & green energy
- Electric: Xcel
- Gas: Xcel
- Water: City
- Utilities for property: Natural Gas Available, High Speed Avail
Green energy
- Energy efficient items: Windows
Community & HOA
Community
- Features: Park, Trail(s)
- Security: Fire Alarm
- Subdivision: Wallace Add Flg 2
HOA
- Has HOA: Yes
- Services included: Common Amenities, Snow Removal, Exterior Maintenance
- HOA fee: $110 monthly
- HOA name: Prospect Advance HOA
- HOA phone: 303-482-2213
Location
- Region: Longmont
Financial & listing details
- Price per square foot: $284/sqft
- Tax assessed value: $1,305,400
- Annual tax amount: $8,565
- Date on market: 4/16/2026
- Listing terms: Cash,Conventional
- Exclusions: Seller's Personal Property, Any Staging Items, Electric Car Lift (negotiable)
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 6/30/2026 | Price change | $1,580,000-0.9%$284/sqft |
Source:  IRES as distributed by MLS GRID #1056681 Report a problem | ||
| 5/12/2026 | Price change | $1,595,000-5.3%$286/sqft |
Source: IRES as distributed by MLS GRID #1056681 Report a problem | ||
| 4/16/2026 | Listed for sale | $1,685,000+32.2%$302/sqft |
Source: IRES as distributed by MLS GRID #1056681 Report a problem | ||
| 5/2/2022 | Sold | $1,275,000+49.1%$229/sqft |
Source: Public Record Report a problem | ||
| 2/24/2021 | Listing removed | -- |
Source: Owner Report a problem | ||
| 11/10/2020 | Listing removed | $1,200 |
Source: Owner Report a problem | ||
| 11/9/2020 | Listed for rent | $1,200-47.8% |
Source: Owner Report a problem | ||
| 8/17/2020 | Sold | $855,000-2.3%$153/sqft |
Source: IRES as distributed by MLS GRID #916785 Report a problem | ||
| 7/18/2020 | Pending sale | $875,000$157/sqft |
Source: Keller Williams Integrity Real Estate Llc #4600186 Report a problem | ||
| 6/26/2020 | Listed for sale | $875,000+59.1%$157/sqft |
Source: Keller Williams Integrity Real Estate Llc #4600186 Report a problem | ||
| 2/1/2013 | Sold | $550,000-18.5%$99/sqft |
Source: Public Record Report a problem | ||
| 3/30/2011 | Listing removed | $675,000$121/sqft |
Source: Metro Brokers - Boulder #634175 Report a problem | ||
| 2/2/2011 | Listed for sale | $675,000$121/sqft |
Source: Metro Brokers - Boulder #634175 Report a problem | ||
| 1/31/2011 | Listing removed | $2,300 |
Source: MB - Kearney Realty Co. Report a problem | ||
| 1/1/2011 | Listing removed | $675,000$121/sqft |
Source: Metro Brokers - Boulder #634175 Report a problem | ||
| 1/1/2011 | Listed for rent | $2,300 |
Source: MB - Kearney Realty Co. Report a problem | ||
| 12/20/2010 | Price change | $675,000-3.6%$121/sqft |
Source: Kearney Realty Co. #634175 Report a problem | ||
| 7/14/2010 | Listed for sale | $699,900+5.9%$126/sqft |
Source: Kearney Realty Co. #634175 Report a problem | ||
| 1/16/2002 | Sold | $661,079+901.6%$119/sqft |
Source: Public Record Report a problem | ||
| 1/21/2000 | Sold | $66,000$12/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $7,093 +1.4% | $81,587 +4.8% |
| 2024 | $6,996 +18.4% | $77,834 -1% |
| 2023 | $5,911 -1.3% | $78,589 +31.6% |
| 2022 | $5,987 -5.5% | $59,728 -2.8% |
| 2021 | $6,336 | $61,447 -5.8% |
| 2020 | $6,336 +27.2% | $65,223 |
| 2019 | $4,982 | $65,223 +24.4% |
| 2018 | $4,982 | $52,445 -9.5% |
| 2017 | $4,982 -9.4% | $57,980 +0.8% |
| 2016 | $5,497 +4.9% | $57,511 +49.8% |
| 2015 | $5,239 +46.1% | $38,383 |
| 2014 | $3,585 +2.4% | $38,383 |
| 2013 | $3,499 +6.8% | $38,383 +1.7% |
| 2012 | $3,277 -32.6% | $37,730 |
| 2011 | $4,865 +1.8% | -- |
| 2010 | $4,777 +1.6% | $56,510 |
| 2009 | $4,702 +31.9% | $56,510 -12.2% |
| 2007 | $3,564 -1.8% | $64,370 +18.3% |
| 2006 | $3,631 -9.1% | $54,410 |
| 2005 | $3,996 +1.2% | $54,410 -9.6% |
| 2004 | $3,951 -8.4% | $60,220 |
| 2003 | $4,315 +254.8% | $60,220 +6.3% |
| 2002 | $1,216 | $56,660 -6.8% |
| 2001 | -- | $60,800 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: Pike
Nearby schools
GreatSchools rating
- 4/10Burlington Elementary SchoolGrades: PK-5Distance: 0.6 mi
- 3/10Sunset Middle SchoolGrades: 6-8Distance: 0.9 mi
- 9/10Niwot High SchoolGrades: 9-12Distance: 3.1 mi
Schools provided by the listing agent
- Elementary: Flagstaff Academy
- Middle: Altona
- High: Niwot
Source: IRES as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
A local agent can set up tours, give advice and negotiate with sellers.
A local lender can help you make sure your offer is ready when you are.
- Colorado
- Boulder County
- Longmont
- 80504
- Pike
- 821 Incorrigible Cir
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