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For sale
    • Price cut: $149K (7/23)
    $1,750,000

    1709 Mariposa Ave, Boulder, CO 80302

    3beds
    1,802sqft
    : 
    $9,427/mo
    Get pre-qualified
    Single Family Residence
    Built in 1950
    8,490 Square Feet Lot
    $1,664,700 Zestimate®
    $971/sqft
    $-- HOA

    What's special

    Experience the magic of one of Boulder's most beloved neighborhoods with this charming single-level home on a beautifully landscaped lot. Offering 3 bedrooms and 2 1/2 bathrooms, the thoughtful floor plan provides both comfort and privacy - the primary suite occupies its own wing with abundant windows, natural light, and direct outdoor access. The fully fenced backyard is a gardener's paradise, lush with flowering plants, mature shrubs, and a living green screen. Relax and entertain around the covered lap pool and spa or simply enjoy the peaceful sound of the seasonal ditch running along the alley. The attached one-car garage off Mariposa adds everyday convenience, while the rear of the lot features an impressive two-story accessory structure. The lower-level houses a one-car garage, 3/4 bathroom, and sauna. Upstairs, a spacious studio with French doors opening to a private balcony offers inspiring flex space - and exciting ADU potential subject to City of Boulder approval. Located steps from Chautauqua Park and miles of open trails, this property delivers the quietude of a tucked-away retreat with surprisingly easy access to Baseline Road and Highway 36 - ideal for commuters heading to Denver, DIA, and beyond.
    14 days
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    846
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    41
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    Zillow last checked:

    Listing updated:

    Listed by:

    Tom Kahn 303-579-4678,

    RE/MAX Alliance-Boulder,

    Kathryn Whelan 303-442-3180,

    RE/MAX Alliance-Boulder

    Source: IRES as distributed by MLS GRID,MLS#: 1063946MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 3
      • Bathrooms: 4
      • Full bathrooms: 1
      • 3/4 bathrooms: 2
      • 1/2 bathrooms: 1
      • Main level bathrooms: 3
      Primary bedroom
      • Description: Carpet
      • Features: 3/4 Primary Bath
      • Level: Main
      • Area: 304 Square Feet
      • Dimensions: 16 x 19
      Bedroom 2
      • Description: Hardwood
      • Level: Main
      • Area: 144 Square Feet
      • Dimensions: 12 x 12
      Bedroom 3
      • Description: Hardwood
      • Level: Main
      • Area: 168 Square Feet
      • Dimensions: 14 x 12
      Dining room
      • Description: Hardwood
      • Level: Main
      • Area: 238 Square Feet
      • Dimensions: 17 x 14
      Kitchen
      • Description: Hardwood
      • Level: Main
      • Area: 180 Square Feet
      • Dimensions: 12 x 15
      Laundry
      • Description: Tile
      • Level: Main
      • Area: 20 Square Feet
      • Dimensions: 5 x 4
      Living room
      • Description: Hardwood
      • Level: Main
      • Area: 255 Square Feet
      • Dimensions: 17 x 15
      Study
      • Description: Carpet
      • Level: Upper
      • Area: 342 Square Feet
      • Dimensions: 19 x 18
      Heating
      • Forced Air
      Cooling
      • Central Air
      Appliances
      • Included: Gas Range, Self Cleaning Oven, Dishwasher, Refrigerator, Washer, Dryer, Microwave, Disposal
      • Laundry: Washer/Dryer Hookup
      Features
      • Separate Dining Room, Cathedral Ceiling(s), Open Floorplan, Walk-In Closet(s), Sauna
      • Flooring: Wood
      • Doors: French Doors
      • Windows: Window Coverings, Wood Frames
      • Basement: None
      • Has fireplace: Yes
      • Fireplace features: Living Room
      Interior area
      • Total structure area: 1,802
      • Total interior livable area: 1,802 sqft
      • Finished area above ground: 1,802
      Video & virtual tour

      Property

      Parking
      • Total spaces: 2
      • Parking features: Garage Door Opener, Attached
      • Attached garage spaces: 2
      • Details: Attached
      Accessibility
      • Accessibility features: Level Lot
      Features
      • Levels: One
      • Stories: 1
      • Patio & porch: Deck
      • Exterior features: Sprinkler System, Balcony
      • Has private pool: Yes
      • Pool features: Private
      • Fencing: Chain Link
      • Has view: Yes
      • View description: Hills, Water
      • Has water view: Yes
      • Water view: Water
      Lot
      • Size: 8,490 Square Feet
      • Features: Evergreen Trees, Deciduous Trees, Level, Abuts Ditch, City Limits, Paved, Alley
      Details
      • Additional structures: Storage, Outbuilding
      • Parcel number: R0009094
      • Zoning: RES
      • Special conditions: Private Owner

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Cottage
      • Property subtype: Single Family Residence
      Materials
      • Frame, Brick
      • Roof: Composition
      Condition
      • New construction: No
      • Year built: 1950

      Utilities & green energy

      • Electric: XCEL
      • Gas: XCEL
      • Sewer: Public Sewer
      • Water: City
      • Utilities for property: Natural Gas Available, Electricity Available, Cable Available, High Speed Avail
      Green energy
      • Energy efficient items: Windows

      Community & HOA

      Community
      • Security: Fire Alarm
      • Subdivision: Floral Park & Weihofen Resub
      HOA
      • Has HOA: No
      Location
      • Region: Boulder

      Financial & listing details

      • Price per square foot: $971/sqft
      • Tax assessed value: $2,034,900
      • Annual tax amount: $11,531
      • Date on market: 7/10/2026
      • Listing terms: Cash,Conventional
      • Exclusions: None
      • Electric utility on property: Yes

        Estimated market value

        $1,664,700

        $1.58M - $1.75M

        $3,910/mo

        Price history

        DateEventPrice
        7/23/2026Price change$1,750,000-7.8%$971/sqft
        Source: IRES as distributed by MLS GRID #1063946 Report a problem
        7/14/2026Listed for sale$1,899,000+368.9%$1,054/sqft
        Source: IRES as distributed by MLS GRID #1063946 Report a problem
        5/5/2000Sold$405,000$225/sqft
        Source: Public Record Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$10,319 +1.8%$127,182 -0.5%
        2024$10,139 +12.9%$127,796 -1%
        2023$8,978 +4.9%$129,035 +24.5%
        2022$8,561 +8%$103,631 -2.8%
        2021$7,925 $106,614 +8.6%
        2020$7,925 +13.8%$98,192
        2019$6,965 $98,192 +12.2%
        2018$6,965 $87,538 -9.5%
        2017$6,965 +22.5%$96,778 +31.4%
        2016$5,685 -5.8%$73,638 +15.6%
        2015$6,036 +12.7%$63,680
        2014$5,354 +0.5%$63,680
        2013$5,328 +0.9%$63,680 +0.1%
        2012$5,281 +1.9%$63,600
        2011$5,184 +16.2%--
        2010$4,461 +12.4%$64,140 +8.5%
        2009$3,969 +3.5%$59,110 -4.7%
        2008$3,833 +9%$62,030
        2007$3,517 +3.9%$62,030 +12.7%
        2006$3,386 -3.4%$55,040
        2005$3,504 +0.7%$55,040 -4%
        2004$3,479 +10.3%$57,350
        2003$3,153 +10.3%$57,350 +26.9%
        2002$2,858 $45,190 -90.9%
        2001-- $493,900
        Find assessor info on the county website

        Monthly payment

        Est. payment

        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: East Chautauqua

        Getting around

        59 / 100
        Somewhat Walkable
        54 / 100
        Good Transit
        76 / 100
        Very Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • Elementary: Creekside
        • Middle: Manhattan
        • High: Boulder

        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.

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