103 3rd Ave, Niwot, CO 80544 Property Records

Boulder County property record for 103 3rd Ave, Niwot, CO 80544

Property Summary

Property Type	Single Family Home
Details	1 bd · 1.75 ba · 999 sqft · built 1903
Lot Size	0.22 acres (9,566 sqft)
Owner	Individual Name on File
Last Sale	$411,000 (Aug 2023)
Tax Bill	$3,931 (2025)
Deeds & Mortgages	Feb 2024 Mortgage Aug 2023 Sale
Flood Zone	Zone X (minimal risk)
APN	`1317-25-4-05-001`

Property Details

APN / Parcel Number

Primary APN	`1317-25-4-05-001`
Alternative APNs	`R0056523` `0056523`

Interior

Bedrooms	1 Bed
Full Baths	1.75 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	999 sqft Living Area
Gross Area	1,063 sqft
1st Floor Area	999 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1903
Effective Year Built	Effective 2010
Architectural Style	Ranch
Exterior Material	Wood Shingle
Construction Type	Frame
Lot Area	9,566 sqft (0.22 acres)
Garage Type	Detached
Garage Area	312 sqft
Parking Spaces	1 Parking Space
Porch	Enclosed Porch
Porch Area	234 sqft
Total Buildings	3 Buildings

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Floor/Wall Furnace

Location & Zoning

Account Number	R0056523
Street Address	103 3RD AVE
City	NIWOT
State	CO
Zip	80544-5040
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	RCII
Legal Description	LOTS 1 & 2 & E 1/2 OF LOT 3 BLK 16 NIWOT
Legal Range	70
Legal Township	2N
Legal Section	25
Legal Subdivision	NIWOT - NI
Legal Block	16
Legal Lot Number	1
Jurisdiction	BOULDER CO
Township / Civil Division	LONGMONT
Census Block Group	1
Census Block	1007
Census Tract	13205

Owner

103 3rd Ave is owned by an individual who bought it in August 2023.

Source: Boulder County records, as of September 18, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Individual Name on File
Mailing Address	PO BOX 233, NIWOT, CO 80544-0233
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Feb 7, 2024	Deed of Trust, Mortgage · Conventional Mortgage COLORADO CU
Aug 21, 2023	Conservator's Deed, Transfer LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 21, 2023 · Amount on File
Deed Sale	Aug 21, 2023 · Amount on File
Prior Sale	Oct 7, 1998 · Amount on File
Deed Document Number	20234018950
Prior Transfer Date	Mar 31, 2000
Prior Transfer Doc	0002184302
Record Updated	Oct 29, 2026

February 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	103 3RD AVE, NIWOT, CO 80544-5040
Transaction Type	Mortgage
Record Updated	Feb 21, 2024
Title Company	NOT AVAILABLE, HOMESTEAD TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	103 3RD AVE, NIWOT, CO 80544-5040

Mortgage

Document Number	0004036116
Date	Feb 7, 2024
Instrument	4036116

Lender

Name	COLORADO CU
Type	Credit Union
Address	LITTLETON, CO 80127

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Feb 1, 2054

August 2023: Conservator's Deed, Transfer

Document Type	Conservator's Deed
Jurisdiction	BOULDER CO
Recording Date	Aug 21, 2023
Property Address	103 3RD AVE, NIWOT, CO 80544-5040
Document Number	0004018950
Instrument Date	Aug 16, 2023
Instrument	4018950
Transaction Type	Transfer
Record Updated	Sep 20, 2023
Title Company	LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO

Transaction

Amount	Amount on Record
Tax	$41.10
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	103 3RD AVE, NIWOT, CO 80544-5040

Tax Assessment & Valuation

The 2025 property tax bill for 103 3rd Ave was $3,931, up 13.6% from the year before.

Source: Boulder County assessment roll, as of September 18, 2026

Property Jurisdictions

Type	Name
State	Colorado
County	Boulder County
Unified School District	St. Vrain Valley School District RE 1J (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$30,453 (-15.39%) Land $18,149 Building $12,304	$497,600 (-13.6%) Land $266,900 Building $230,700
2025	$3,931.00 (+13.65%)	$35,994 Land $16,681 Building $19,313	$575,900 Land $266,900 Building $309,000
2024	$3,459.00 (+25.19%)
2023	$2,763.00 (+25.31%)	$38,479 (+36%) Land $15,933 Building $22,546	$574,301 (+41.07%) Land $237,800 Building $336,501
2022	$2,205.00	$28,294 Land $13,907 Building $14,387	$407,100 Land $200,100 Building $207,000

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 103 3rd Ave in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	7 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 103 3rd Ave is low, with a 0.02% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 94% of the US · lower than 97.5% of Colorado
Wildfire Likelihood	0.02% annual chance
Exposure	None beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	LEFT HAND WD serves 20,280 people · EPA ID CO0107471
Water Source	Surface water
Last State Inspection	Jun 2022
Lead	1 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 251 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Ayva Networks Fixed Wireless	2,500 / 2,500
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20

May also be available: AT&T, LiveWireNet.

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