See Home Value
$1,606,600
● House - Off Market

1709 Mariposa Ave

Boulder, CO 80302
bedrooms
3 Beds
bathrooms
1 Bath, 1 Half Bath
square feet
1,802 Ft²
$9,284
Est. Monthly

About This Property

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.
Unit Size
1,802 Ft²
Days on Market
-
Land Size
0.19 acres
Price per sqft
$941
Property Type
House
Property Taxes
$961
HOA Dues
-
Year Built
1950

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Last updated: 2 months ago (IRES MLS #IRE1063946)

Price History

Date / Event Date Event Price
Sep 3, 2026 Sold
Sold
Aug 20, 2026 In contract -
In contract
Aug 14, 2026 Price Decreased $1,695,000
↓ $55K (3.1%)
Price Decreased
Jul 25, 2026 Price Decreased $1,750,000
↓ $149K (7.9%)
Price Decreased
Jul 10, 2026 Listed $1,899,000
Listed
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Property Highlights

Garage
Air Conditioning
Fireplace
With View

Building Info

Overview

    General

  • Year Built: 1950
  • Effective Year Built: 1989
  • Building Count: 2
  • Total Rooms: 7
  • Bedroom Count: 2
  • Bathroom Count: 3
  • Full Bathrooms: 2
  • Partial Bathrooms: 3
  • Building Condition: 3
  • Building Quality: 4
  • Construction Type: 12
  • Building Style: 11
  • Exterior Walls Type: 16
  • Interior Walls Type: 3
  • Roof Shape Type: 0
  • Roof Cover Type: 15
  • Floor Count: 100
  • Living Units: 1
  • Floor Cover: 0
  • Basement Type: 0
  • Basement Area: 0
  • Garage Type: 1
  • Garage Square Area: 350
  • Parking Space Count: 1
  • Patio Type: 0
  • Porch Type: 0
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 8,490
  • Total Building Area: 2,169
  • Gross Building Area: 2,169
  • Building Area: 1,819
  • Building Area Measurement: L

    Heating and Cooling

  • Air Conditioning: 0
  • Heating: 4
  • Heated Square Feet: 1,819
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Subdivision: FLORAL PARK & WEIHOFEN RESUB - BO
  • Land Acres: 0000000195
  • Standard Land Use Code: 1001
  • County Land Use Code: 1112
  • Legal Description 1: LOT 8 & W 14 FT LOT 9 BLK 10 FLORAL PARK

Neighborhood

  • School District Name: Boulder Valley School District RE-2
  • Census Tract: 012505

Geography

  • Assessors Map Reference: B17-J
  • Account Number: R0009094
  • Parcel: R0009094
  • Block: 10
  • Lot: 8
  • Meridian: SEC 06 TWN 1S RNG 70
  • Municipality: BOULDER
  • Latitude: 39.9985
  • Longitude: -105.271

    Address

  • Full Address: 1709 Mariposa Ave
  • Address - House Number: 1709
  • Address - Street Name: Mariposa
  • Address - Suffix Type: Ave
  • State: CO
  • City Name: Boulder
  • Carrier Code: C027
  • 4-Digit Zip Code: 7928
  • Zip Code: 80302

Valuation

    Tax

  • Tax Year: 2022
  • Tax Amount: $897,818
  • Initial Tax Delinquent Year: 2022
  • Tax Rate Code Area: 00-010

    Appraisal Valuation

  • Standard Deviation: 0.1709
  • Valuation Date: Jan 10, 2024
  • Confidence Score: 78
  • Final Value: 1,775,746
  • High Value: 2,079,319
  • Low Value: 1,472,173

    Market Valuation

  • Market Total Value: $1,907,400
  • Market Land Value: $961,600
  • Market Improvement Value: $945,800

    Assessments Valuation

  • Assessed Year: 2023
  • Assessed Total Value: $129,035
  • Assessed Land Value: $65,052
  • Assessed Improvements Value: $63,983

    Sales

  • Current Sale Contract Date: Apr 28, 2000
  • Current Sale Recording Date: May 05, 2000
  • Current Sale Price:
  • Current Sale Document Type: 71
  • Current Sale Input Document Number: 2042828
  • Previous Sale Recording Date: Jun 14, 1989
  • Previous Sale Contract Date: Jun 14, 1989
  • Previous Sale Amount: $128,300
  • Previous Sale Document Type: 71
Data used for valuation calculations is provided by RealtyHop, and other third party sources

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About Central Boulder


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Frequently Asked Questions

When was property at 1709 Mariposa Avenue built and last sold?
The property at 1709 Mariposa Avenue was built in 1950 and last sold on Apr 28, 2000 for $405,000.
How much is this home worth?
The estimated value of the home located at 1709 Mariposa Avenue is $1,897,655.
What are some comparable homes to 1709 Mariposa Avenue?
There are currently no comparable homes to 1709 Mariposa Avenue.