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1709 Mariposa AvenueBoulder, CO 80302

For Sale

$1,750,000

Smart Buyer Rebate $17,500

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.

Listed by Tom Kahn

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License #IRP08265

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RE/MAX Alliance-Boulder

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303-442-3180

Listed by Kathryn Whelan

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License #IRP28905

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RE/MAX Alliance-Boulder

Last updated July 26, 2026

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Source: REcolorado #IR1063946

Listing Facts

  • TypeSingle-family
  • NeighborhoodEast Chautauqua
  • Bedrooms3
  • Bathrooms4
  • Days on Prevu21
  • Taxes$11,531/year
  • Size1,802 sqft
  • Price per sqft$971

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Washer/Dryer
  • Air Conditioning
  • Parking
  • Swimming Pool

Location

Mortgage Calculator

Listing History

07/23/2026
Price Decreased
$1,750,000
07/14/2026
Status changed to Active
$1,899,000
07/10/2026
Listed by RE/MAX Alliance-Boulder
$1,899,000

Property Details for 1709 Mariposa Avenue

Exterior

Construction

  • Roof: Composition
  • Structure Type: House
  • Window Features: Double Pane Windows, Window Coverings
  • Year Built: 1950
  • Architectural Style: Cottage
  • Construction Materials: Brick, Frame
  • Exterior Features: Balcony

Features

  • Direction Faces: South
  • Fencing: Fenced
  • Patio And Porch Features: Deck
  • Pool Features: Private
  • Road Frontage Type: Public
  • View: Mountain(s), Water

Measurements

  • Building Area Total: 1,802
  • Lot Features: Ditch, Level, Sprinklers In Front
  • Lot Size Acres: 0.19
  • Lot Size Square Feet: 8,490

Financial

Taxes

  • Parcel Number: R0009094
  • Tax Annual Amount: $11,531.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Dishwasher, Disposal, Dryer, Microwave, Oven, Refrigerator, Self Cleaning Oven, Washer
  • Fireplace Features: Living Room
  • Flooring: Tile, Wood
  • Interior Features: Open Floorplan, Sauna, Vaulted Ceiling(s), Walk-In Closet(s)

Measurements

  • Living Area: 1,802

Rooms

  • Bathrooms Full: 1
  • Bathrooms Half: 1
  • Bathrooms Three Quarter: 2
  • Bathrooms Total Integer: 4
  • Bedrooms Total: 3
  • Main Level Bathrooms: 3
  • Main Level Bedrooms: 3

Other

Location

  • Subdivision Name: Floral Park & Weihofen Resub

Parking

Parking

  • Attached Garage: Yes
  • Garage Spaces: 2
  • Parking Total: 2

Schools

Elementary School

  • Elementary School: Creekside
  • Elementary School District: Boulder Valley RE 2

High School

  • High School: Boulder
  • High School District: Boulder Valley RE 2

Middle or Junior School

  • Middle Or Junior School: Manhattan

Utilities

Equipment

  • Cooling: Central Air
  • Heating: Forced Air
  • Laundry Features: In Unit
  • Sewer: Public Sewer
  • Utilities: Cable Available, Electricity Available, Internet Access (Wired), Natural Gas Available
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 3 bedrooms and 4 bathrooms in this single-family home at 1709 Mariposa Avenue.

What schools are nearby to 1709 Mariposa Avenue?

Nearby schools include the Creekside Elementary School, Manhattan Middle School, and Boulder High School.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 1709 Mariposa Avenue.

What are the annual taxes for 1709 Mariposa Avenue?

Annual taxes for this single-family home are estimated at $11,531.

How does 1709 Mariposa Avenue compare to other single-family homes in East Chautauqua?

This single-family home is listed 40% below the average price for single-family homes in East Chautauqua and has been on the market for 118 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 1,802 sqft.

1709 Mariposa Avenue is a 3-bedroom, 4-bath single-family home for sale in Boulder CO 80302. Available on Prevu for 21 days at $1,750,000. This includes a recent price decrease of $149,000. This residence features 1,802 square feet of living space, located in East Chautauqua. The median listing price for single-family homes in this area is $2,147,000. Nearby schools include Creekside Elementary School, Manhattan Middle School, and Boulder High School. The home offers private outdoor space, dishwasher, air conditioning, parking, swimming pool, and washer/dryer. Explore more single-family home listings in Boulder.

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Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.