3155 E 104th Ave, Unit 4A, Thornton (Denver), CO 80233 Property Records

Adams County property record for 3155 E 104th Ave, Unit 4A, Thornton, CO 80233

Property Summary

Property Type	Condominium
Details	2 bd · 2.5 ba · 1,575 sqft · built 2005
Lot Size	0.02 acres (849 sqft)
Owner	Individual Name on File
Last Sale	$275,000 (Aug 2017)
Tax Bill	$1,086 (2025)
Deeds & Mortgages	Aug 2017 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1719-12-3-01-029`

Property Details

APN / Parcel Number

Primary APN	`1719-12-3-01-029`
Alternative APNs	`0171912301029` `171912424029` `R0164912`

Interior

Bedrooms	2 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Plumbing Fixtures	12 Plumbing Fixtures
Total Rooms	6 Rooms
Units	3 Units
Stories	2 Stories
Building Area	1,575 sqft Living Area
Gross Area	2,212 sqft
Basement Area	290 sqft
Finished Basement	179 sqft
Unfinished Basement	111 sqft
Interior Walls	Wallboard/Drywall
Fireplaces	1 Fireplace
Fireplace	Fireplace

Exterior

Year Built	Built 2005
Effective Year Built	Effective 2005
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Roof Type	Gable
Roof Material	Composition Shingle
Lot Area	849 sqft (0.02 acres)
Garage Type	Attached
Garage Area	471 sqft
Parking Spaces	2 Parking Spaces

Exterior Amenities

Porch	Covered Wood Porch
Porch Area	178 sqft
Deck Area	55 sqft
Patio Area	161 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0164912
Street Address	3155 E 104TH AVE, 4A
City	THORNTON
State	CO
Zip	80233-4211
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	CONDO: SAGE VALLEY CONDOMINIUMS UNIT:4A DESC:BLDG 4
Legal Range	68W
Legal Township	02S
Legal Section	12
Legal Quarter	3
Legal Subdivision	SAGE VALLEY CONDOMINIUMS
Legal Lot Number	4A
Jurisdiction	ADAMS CO
Township / Civil Division	WEST ADAMS
Census Block Group	2
Census Block	2002
Census Tract	8533

Owner

Source: Adams County records · APN 1719-12-3-01-029

Assessment roll updated January 21, 2026 · Last verified June 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	3155 E 104TH AVE, 4A, THORNTON, CO 80233-4211
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Aug 21, 2017 · Amount on Record
Deed Sale	Aug 21, 2017 · Amount on Record
Prior Sale	Jun 29, 2005 · Amount on Record
Deed Document Number	201772847
Record Updated	Sep 20, 2026

August 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	ADAMS CO
Recording Date	Aug 21, 2017
Property Address	3155 E 104TH AVE UNIT 4A, 4A, THORNTON, CO 80233-4211
Document Number	0000072847
Instrument Date	Aug 10, 2017
Instrument	72847
Transaction Type	Transfer
Record Updated	Aug 29, 2017
Title Company	LAND TITLE GUARANTEE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$27.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3155 E 104TH AVE #4A THORNTON CO 802334211, 4A, THORNTON, CO 80233-4211

Mortgage

Document Number	72848
Date	Aug 21, 2017
Instrument	72848

Lender

Name	ALLIANT CU
Type	Credit Union
Address	CHICAGO, IL 60666

Agreement

Type	Conventional with PMI
Amount	Amount Recorded
Term	360 Months
Due	Aug 20, 2047

Interest

Rate Type	Adjustable Rate
Rate	3.75%

Tax Assessment & Valuation

Source: Adams County records · Assessment roll updated January 21, 2026 · Last verified June 2026

Property Jurisdictions

Type	Name
State	Colorado
County	Adams County
Municipality	Thornton City
Unified School District	Adams 12 Five Star Schools (PK - 12)

Tax Bill & Assessment History

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.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$1,086.00 (-57.14%)	$27,880 (-1.17%) Land $5,440 Building $22,440	$410,000 (-1.68%) Land $80,000 Building $330,000
2024	$2,534.00 (-17.67%)
2023	$3,078.00 (+7.89%)	$28,210 (+8.92%) Land $3,990 Building $24,220	$417,000 (+11.88%) Land $59,000 Building $358,000
2022	$2,853.00	$25,900 Land $8,200 Building $17,700	$372,705 Land $118,000 Building $254,705

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 2, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Wildfire

Wildfire Risk	Low lower than 99.1% of the US · lower than 99.6% of Colorado
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Internet Providers

Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Xfinity Cable	2,000 / 250
JAB Wireless Fixed Wireless	100 / 20
T-Mobile USA Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Aerux, BIF IV Intrepid HoldCo, Lumen Technologies, Verizon.

Based on FCC filings for 721 locations within half a mile of this property.

Drinking Water

Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF THORNTON serves 226,465 people
Water Source	Surface water
Last State Inspection	Jul 2024
Lead	2 ppb (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	3 last 3 years

Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.