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$550,000
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Property Description
Fantastic Niwot cottage on double lot with 3 additional buildings and tons of potential. The main house has been lovingly restored, is hip and stylish with an open floorplan. You will love the feel of the kitchen/family room with new pellet stove, newer windows, two ductless mini splits with both heat and a/c. The commercial grade Wolf gas stove is the crown jewel in this cool kitchen. Huge butcher block island with large under mount sink, seating, white subway tile and open shelving offers a timeless yet casual vibe. Large primary bedroom flows into oversized closet, refreshed ensuite bath with frameless LED lighted mirror and walk in shower. The bright and sunny room off of the kitchen could be an office or space for all of your toys. Adjacent second bathroom is a work in progress with running water, toilet and it has been plumbed for a shower. Make it your own! Restore the ADU and use it for family/friends or some extra income. Primo location just one block from downtown Niwot, it's an easy jaunt to restaurants and shops. Enjoy mountain views, mature trees, garden beds, and the old chicken coop. Buyer to verify permits and potential use of all buildings. Property water source is a permitted well. Close to Diagonal Highway 119 for easy access to Boulder, Denver, Longmont and Northern Colorado. Love your place in Niwot!
Full Property Details
Full Property Details for 103 3rd Ave
General
- Price: $550,000
- Taxes: $3,459 (2024)
- Status: Active
- Type: Single Family
- Source: IRES
- MLS ID: 1047130
- Updated: 1/10/2026
- Added to Site: 67 day(s) ago
Interior
- Interior Features: Eat-In Kitchen, Open Floorplan, Walk-In Closet(s), Kitchen Island
- Fireplace: Yes
- Fireplace(s): Great Room
- Appliances: Gas Range, Dishwasher, Refrigerator, Washer, Dryer
- Flooring: Wood
Rooms
Bathrooms
- Total Bathrooms: 2
- Full Bathrooms: 1
- Half Bathrooms: 1
- Basement Baths: 1
Bedrooms
- Total Bedrooms: 1
Parking
- Garage Description: Detached
Location
- Area: Niwot
- County: Boulder
- Subdivision: Niwot
School Information
- School District: ST Vrain Dist RE 1J
- Elementary School: Niwot
- Middle School: Sunset Middle
- High School: Niwot
Heating & Cooling
- Cooling Type: Ductless
- Heating Type: Ductless, Pellet Stove
Utilities
- Gas: Yes
- Gas: XCEL
- Sewer: Public Sewer
- Water: Well
- Utility Description: Natural Gas Available, Electricity Available, High-Speed Internet Available
Structural Information
- Architectural Style: Cottage
- Construction: Frame
- Exterior Const.: Frame
- Basement: Yes
- Basement Desc.: Crawl Space
- Roof: Composition
- Square Feet: 1,008
- Sq. Ft. Source: Assessor
- Living Area: 1,008 Sq. Ft.
- Year Built: 1903
Additional Structures
- Other Structures: Storage
Lot Features
- Property View: Mountain(s)
- Mountain views: Yes
- Lot Size (Acres): 0.22
- Lot Size (Sq. Ft.): 9,566
- Frontage: County Maintained
- Street/Road Desc.: Asphalt
- Fence: Yes
- Lot Features: Level, Paved, Mineral Rights Excluded
- Potential Use: Single-Family, Multi-Family
- Zoning: RC II
- Fencing (Description): Partial
Green Features
- Energy Efficient: Sun Space, Windows
Financial Considerations
- Tax Amount: $3,459
- Tax Year: 2024
- Terms: Cash, Conventional
Disclosures and Reports
- Special Conditions: Private Owner
- Exclusions: Staging and personal property in all buildings
- Property ID: R0056523
Listed by Live West Realty (303) 800-9601
Get Pre-Approved Today
Schools
Schools serving 103 3rd Ave
School District:St. Vrain Valley School District Re 1j
| Name | Grades | Distance |
|---|---|---|
Niwot Elementary School 8778 Morton Road, Niwot, CO 80503 | PK-5 | 1.3 mi |
Sunset Middle School 1300 South Sunset Street, Longmont, CO 80501 | 6-8 | 3.9 mi |
Niwot High School 8989 Niwot Road, Niwot, CO 80503 | 9-12 | 1.5 mi |
Disclaimer:
School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 103 3rd Ave
Date
Details
Price
Change
Source
12/26/2025
Price Reduced
$550,000
-10.57%
MLS
11/23/2025
Price Reduced
$615,000
-4.65%
MLS
11/10/2025
Listed
$645,000
56.93%
MLS
8/16/2023
Sold
$411,000
—
Public Record
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 103 3rd Ave
Year
Property Taxes
Change
Tax Assessment
Change
2024
$3,459
25%
$34,793
-10%
2023
$2,763
25%
$38,479
36%
2022
$2,205
-1%
$28,294
-3%
2021
$2,234
—
$29,107
-4%
2021
$2,234
46%
$30,195
34%
2018
$1,530
6%
$22,536
—
2017
$1,441
12%
$22,536
6%
2016
$1,284
5%
$21,301
—
2015
$1,224
-47%
$21,301
-29%
2019
$2,298
98%
$30,195
49%
2014
$1,159
-44%
$20,298
-9%
2013
$2,074
—
$22,280
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 103 3rd Ave
103 3rd Ave, Niwot, CO 80544 (MLS# 1047130) is a Single Family property with 1 bedroom, 1 full bathroom and 1 partial bathroom. 103 3rd Ave is currently listed for $550,000 and was received on November 10, 2025. Want to learn more about 103 3rd Ave? Do you have questions about finding other Single Family real estate for sale in Niwot? You can browse all Niwot real estate or contact a Coldwell Banker agent to request more information.

