1709 Mariposa Avenue Boulder, CO $ 1,899,000
1709 Mariposa Avenue
$ 1,899,000
Recently Listed
Open House 7/19 1pm - 3pm
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1709 Mariposa Avenue

Boulder, CO, 80302
$ 1,899,000
Bedrooms3 Baths3.1 Sq 1,802

Monthly Estimate*

$ 11,990

Listed by RE/MAX Alliance-Boulder
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Single Family Home for sale in Boulder, CO

for $1,899,000 with 3 bedrooms and 3 full baths, 1 half bath. This 1,802 square foot home was built in 1950 on a lot size of 0.19.

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.

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Open House

7/19/2026 1:00 PM - 3:00 PM
1709 Mariposa Avenue Boulder, CO
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

$ 1,899,000

Bedrooms

3

Full Bath

3

Half Bath

1

Property Type

Single Family

Taxes

$ 11,531

Style

Cottage

Lot Size

0.19

Year Built

1950

Town/City

Boulder

County/Region

Boulder

MLS | Web ID

IR1063946

Features
Interior
Interior Amenities Open Floorplan Sauna Vaulted Ceiling(s) Walk-In Closet(s)
Basement None
Flooring Tile Wood
Fireplace Features Living Room
Basement (Y/N) N
Window Features Double Pane Windows Window Coverings
Above Grade Finished Area 1802
Half Baths 1
3/4 Baths 2
Laundry Features In Unit
Total Bedrooms 3
Below Grade Finished Area 0
Main Level Bedrooms 3
Main Level Bathrooms 3
Total Baths 4
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General
Sewer Public Sewer
Heating Forced Air
Cooling Central Air
Utilities Cable Available Electricity Available Internet Access (Wired) Natural Gas Available
Possession Closing/DOD
Roof Composition
Appliances Dishwasher Disposal Dryer Microwave Oven Refrigerator Self Cleaning Oven Washer
Zoning RES
Garage Spaces 2
Patio/Porch Features Deck
Architectural Style Cottage
Pool Features Private
Security Features Smoke Detector(s)
Construction Materials Brick Frame
Exclusions None
Year Built 1950
View Mountain(s) Water
Levels One
Property Subtype Single Family Residence
Tax Year 2025
Ownership Individual
County Boulder
Property Type Residential
HOA N
Attached Garage Y
Subdivision Name Floral Park & Weihofen Resub
Facing Direction South
Possible Use Residential
Full Baths 1
Status Active
Directions Baseline to 15th left on Mariposa to home on left
High School Boulder
City Boulder
High School District Boulder Valley RE 2
Lot Size Square Feet 8490
Listing Terms Cash Conventional
Elementary School Creekside
Tax Annual Amount 11531
Middle/Junior High School Manhattan
Concessions No
Virtual Tour https://www.listingsmagic.com/sps/tour-slider/index.php?property_ID=284291
Structure Type House
Standard Status Active
Elementary School District Boulder Valley RE 2
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Exterior
Exterior Amenities Balcony
Vegetation Wooded
Fencing Fenced
Lot Features Ditch Level Sprinklers In Front
Water Source Public
Total Parking 2
Building Area Total 1802
Lot Size Acres 0.19
Road Surface Type Alley Paved Paved
Road Frontage Type Public
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Internal Only
Street Number 1 1709
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* Excluded Features
List By
Re/Max Alliance-Boulder

Broker

(303) 442-3180

Phone

Affordability Calculator

$12,951
Per Month
93%
7%
0%
Monthly Principal & Interest
$11,990
Monthly Property Taxes
$961
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
1957865 Elementary School
1957357 Middle School
Boulder High School High School
Pricing History
DatePricePrice ChangeDescription
7/10/2026$1,899,000 Listed Price

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1709 Mariposa Avenue, Boulder, CO, 80302 is a Single Family Home for sale at $1,899,000 with 1,802 sqft and a lot size of 0.19. 1709 Mariposa Avenue has 3 bedrooms, 3.1 baths, and was built in 1950. The property's zip code is 80302 which is in Boulder, CO