Skip main navigation
For sale
$1,650,000
7beds
3,991sqft

1800 Sumac Ave, Boulder, CO 80304

7beds
3,991sqft
Mixed use
Built in 1950
0.47 Acres
2 Attached garage spaces
$413 price/sqft

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.

23 days
|
1,629
|
63
|

Likely to sell faster than

Source: IRES as distributed by MLS GRID,MLS#: 1065759MLS Logo
Travel times

Living Room

Kitchen

Primary Bedroom

Zillow last checked:

Listing updated:

Listed by:

The Bernardi Group info@thebernardigroup.com,

Coldwell Banker Realty-Boulder

Source: IRES as distributed by MLS GRID,MLS#: 1065759MLS Logo

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

DateEventPrice
3/30/2026Price change$1,650,000-5.7%$413/sqft
Source: IRES as distributed by MLS GRID #1049757 Report a problem
2/17/2026Price change$1,750,000-2.5%$438/sqft
Source: IRES as distributed by MLS GRID #1049757 Report a problem
1/16/2026Listed for sale$1,795,000-5.3%$450/sqft
Source: IRES as distributed by MLS GRID #1049757 Report a problem
12/23/2025Listing removed$1,895,000$475/sqft
Source: IRES as distributed by MLS GRID #1032174 Report a problem
11/4/2025Price change$1,895,000-2.8%$475/sqft
Source: IRES as distributed by MLS GRID #1032174 Report a problem
10/24/2025Price change$1,949,000-1.1%$488/sqft
Source: IRES as distributed by MLS GRID #1032174 Report a problem
7/24/2025Price change$1,970,000-1.3%$494/sqft
Source: IRES as distributed by MLS GRID #1032174 Report a problem
4/25/2025Listed for sale$1,995,000-13.1%$500/sqft
Source: IRES as distributed by MLS GRID #1032174 Report a problem
10/15/2024Listing removed$2,295,000$575/sqft
Source: IRES as distributed by MLS GRID #1018547 Report a problem
9/13/2024Listed for sale$2,295,000+943.2%$575/sqft
Source: IRES as distributed by MLS GRID #1018547 Report a problem
10/24/1995Sold$220,000-31.3%$55/sqft
Source: Public Record Report a problem
6/19/1995Sold$320,000$80/sqft
Source: Public Record Report a problem

Public tax history

YearProperty taxesTax 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

Find assessor info on the county website

Monthly payment

Est. payment
$9,238/mo
Principal & interest
$8509
Property taxes
$729
More affordability toolsChevron Right

Estimated market value

$1,565,400

$1.49M - $1.64M

$6,595/mo

Climate risks

Explore flood, wildfire, and other predictive climate risk information for this property on First Street®️.

Neighborhood: Moores

Nearby schools

Crest View Elementary School
Grades K-5 • 0.1 miles
9/10
GreatSchools® Rating
Test Score Rating
7/10
Student Progress Rating
10/10
Centennial Middle School
Grades 6-8 • 0.5 miles
6/10
GreatSchools® Rating
Test Score Rating
8/10
Student Progress Rating
4/10
Boulder High School
Grades 9-12 • 2.6 miles
9/10
GreatSchools® Rating
College Readiness Rating
9/10

      Nearby cities

      Nearby neighborhoods

      Nearby zip codes

      Other Boulder Topics

        Search
        Updates
        Favorites
        Plan
        Inbox