1800 Sumac Ave, Boulder, CO 80304
What's special
House of Many Doors. Opportunity takes many forms, and this home gives you the flexibility to make it your own. With 7 bedrooms, 2 kitchens, 2 primary suites, 2 laundry areas, and a floor plan designed for a variety of living arrangements, this is an ideal fit for multigenerational living, extended family, rental income, or provides room to spread out. Step inside to warm wood floors, a bright living room lined with built-in bookshelves, a wood-burning stove, and a stunning wood-paneled ceiling that creates an inviting place to gather. Sunny breakfast nook & kitchen overlook the expansive backyard, bringing peaceful views. The main-level primary suite is a true retreat with soaring ceilings, sitting area, walk-in closet, private laundry, patio access, and five-piece bath with a soaking tub. A dedicated home office and an additional bedroom provide flexibility. A separate wing of the home has been successfully used as an Airbnb and is tucked away with its own private entrance, living area, two bedrooms, and exceptional privacy. Whether you're accommodating long-term guests, generating supplemental income, or creating an independent living space for family, the possibilities are endless. An additional kitchen, second living room, and second laundry area enhance the home's versatility. The second living room is ready with chimney for wood stove. Upstairs, the second primary suite features vaulted ceilings, a walk-in closet, and an ensuite bath. Outside, nearly half an acre becomes your own private sanctuary. Enjoy the covered deck overlooking a backyard filled with mature trees, established vegetable gardens, a farmer's ditch, and frequent visits from deer, ducks, and birds. Multiple fenced areas and a dedicated dog run make the outdoor space as functional as it is beautiful. Tucked into a welcoming neighborhood, this home offers something increasingly difficult to find: flexibility, privacy, income potential, and a backyard that feels like your own peaceful park.
- 70 days
- 517
- 36
Likely to sell faster than
Travel times
Living Room
Kitchen
Primary Bedroom
Zillow last checked:
Listing updated:
The Bernardi Group info@thebernardigroup.com,
Coldwell Banker Realty-Boulder
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 7
- Bathrooms: 4
- Full bathrooms: 4
- Main level bathrooms: 1
Primary bedroom
- Description: Wood
- Features: 5 Piece Primary Bath, Bidet
- Level: Lower
- Area: 440 Square Feet
- Dimensions: 20 x 22
Bedroom 2
- Description: Tile
- Level: Lower
- Area: 110 Square Feet
- Dimensions: 10 x 11
Bedroom 3
- Description: Tile
- Level: Lower
- Area: 132 Square Feet
- Dimensions: 11 x 12
Bedroom 4
- Description: Wood
- Level: Upper
- Area: 308 Square Feet
- Dimensions: 14 x 22
Bedroom 5
- Description: Wood
- Level: Upper
- Area: 190 Square Feet
- Dimensions: 10 x 19
Bedroom 6
- Description: Carpet
- Level: Upper
- Area: 150 Square Feet
- Dimensions: 10 x 15
Dining room
- Description: Wood
- Level: Main
- Area: 108 Square Feet
- Dimensions: 9 x 12
Family room
- Description: Wood
- Level: Main
- Area: 312 Square Feet
- Dimensions: 13 x 24
Kitchen
- Description: Wood
- Level: Main
- Area: 162 Square Feet
- Dimensions: 9 x 18
Laundry
- Description: Tile
- Level: Lower
- Area: 15 Square Feet
- Dimensions: 3 x 5
Living room
- Description: Tile
- Level: Lower
- Area: 187 Square Feet
- Dimensions: 11 x 17
Recreation room
- Description: Wood
- Level: Upper
- Area: 297 Square Feet
- Dimensions: 11 x 27
Study
- Description: Carpet
- Level: Upper
- Area: 165 Square Feet
- Dimensions: 11 x 15
Heating
- Baseboard
Cooling
- Wall/Window Unit(s)
Appliances
- Included: Gas Range, Down Draft, Dishwasher, Refrigerator, Bar Fridge, Washer, Dryer, Microwave, Disposal
- Laundry: Sink
Features
- Separate Dining Room, Cathedral Ceiling(s), Pantry, Walk-In Closet(s), Wet Bar, Two Primary Suites
- Flooring: Wood
- Windows: Skylight(s), Window Coverings
- Basement: None,Crawl Space
- Has fireplace: Yes
- Fireplace features: Living Room
Interior area
- Total structure area: 3,991
- Total interior livable area: 3,991 sqft
- Finished area above ground: 3,991
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Attached
- Attached garage spaces: 2
- Details: Attached
Accessibility
- Accessibility features: Level Lot, Main Floor Bath, Accessible Bedroom, Main Level Laundry
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio, Deck
- Fencing: Fenced,Dog Run/Kennel
Lot
- Size: 0.47 Acres
- Features: Wooded, Evergreen Trees, Deciduous Trees, Level, Abuts Ditch, City Limits, Paved
Details
- Additional structures: Storage
- Parcel number: R0032913
- Zoning: RE
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Contemporary
- Property subtype: Mixed Use
Materials
- Frame
- Roof: Composition
Condition
- New construction: No
- Year built: 1950
Utilities & green energy
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available
Green energy
- Energy efficient items: Southern Exposure
Community & HOA
Community
- Subdivision: Moores
HOA
- Has HOA: No
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $413/sqft
- Tax assessed value: $1,815,100
- Annual tax amount: $10,816
- Date on market: 8/5/2026
- Listing terms: Cash,Conventional
- Exclusions: Sellers personal property
- Electric utility on property: Yes
- Road surface type: Asphalt
Price history
| Date | Event | Price |
|---|---|---|
| 8/5/2026 | Listed for sale | $1,650,000$413/sqft |
Source:  IRES as distributed by MLS GRID #1065759 Report a problem | ||
| 7/17/2026 | Listing removed | $1,650,000$413/sqft |
Source: IRES as distributed by MLS GRID #1049757 Report a problem | ||
| 3/30/2026 | Price change | $1,650,000-5.7%$413/sqft |
Source: IRES as distributed by MLS GRID #1049757 Report a problem | ||
| 2/17/2026 | Price change | $1,750,000-2.5%$438/sqft |
Source: IRES as distributed by MLS GRID #1049757 Report a problem | ||
| 1/16/2026 | Listed for sale | $1,795,000-5.3%$450/sqft |
Source: IRES as distributed by MLS GRID #1049757 Report a problem | ||
| 12/23/2025 | Listing removed | $1,895,000$475/sqft |
Source: IRES as distributed by MLS GRID #1032174 Report a problem | ||
| 11/4/2025 | Price change | $1,895,000-2.8%$475/sqft |
Source: IRES as distributed by MLS GRID #1032174 Report a problem | ||
| 10/24/2025 | Price change | $1,949,000-1.1%$488/sqft |
Source: IRES as distributed by MLS GRID #1032174 Report a problem | ||
| 7/24/2025 | Price change | $1,970,000-1.3%$494/sqft |
Source: IRES as distributed by MLS GRID #1032174 Report a problem | ||
| 4/25/2025 | Listed for sale | $1,995,000-13.1%$500/sqft |
Source: IRES as distributed by MLS GRID #1032174 Report a problem | ||
| 10/15/2024 | Listing removed | $2,295,000$575/sqft |
Source: IRES as distributed by MLS GRID #1018547 Report a problem | ||
| 9/13/2024 | Listed for sale | $2,295,000+943.2%$575/sqft |
Source: IRES as distributed by MLS GRID #1018547 Report a problem | ||
| 10/24/1995 | Sold | $220,000-31.3%$55/sqft |
Source: Public Record Report a problem | ||
| 6/19/1995 | Sold | $320,000$80/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $10,754 +1.8% | $113,444 -10% |
| 2024 | $10,568 +18.9% | $126,054 -1% |
| 2023 | $8,887 +4.9% | $127,276 +33% |
| 2022 | $8,475 +20.2% | $95,702 -2.8% |
| 2021 | $7,052 | $98,456 +21.5% |
| 2020 | $7,052 +6.9% | $81,017 |
| 2019 | $6,598 | $81,017 +6.5% |
| 2018 | $6,598 | $76,097 -9.5% |
| 2017 | $6,598 +10.8% | $84,129 +22.3% |
| 2016 | $5,954 +5.6% | $68,783 +19.1% |
| 2015 | $5,638 +16.1% | $57,742 |
| 2014 | $4,855 -2.9% | $57,742 |
| 2013 | $5,001 +0.9% | $57,742 -3.3% |
| 2012 | $4,957 -1.5% | $59,700 |
| 2011 | $5,030 +7.1% | -- |
| 2010 | $4,697 +5% | $62,240 -7.8% |
| 2009 | $4,475 +3.5% | $67,500 -3.5% |
| 2008 | $4,323 +0.9% | $69,950 |
| 2007 | $4,285 +18.9% | $69,950 +19.5% |
| 2006 | $3,604 +14.1% | $58,560 |
| 2005 | $3,158 +0.7% | $58,560 +13.3% |
| 2004 | $3,136 +2.2% | $51,690 |
| 2003 | $3,070 +10.3% | $51,690 +17.5% |
| 2002 | $2,782 | $43,990 -90.9% |
| 2001 | -- | $480,800 |
Monthly payment
Estimated market value
$1,558,200
$1.48M - $1.64M
$7,177/mo
Climate risks
Explore flood, wildfire, and other predictive climate risk information for this property on First Street®️.