4150 Riverside Ave, Boulder, CO 80304 Property Records

Boulder County property record for 4150 Riverside Ave, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	3 bd · 1.75 ba · 2,119 sqft · built 1982
Lot Size	0.051 acres (2,224 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,075,500 (Mar 2025)
Tax Bill	$6,709 (2025)
Deeds & Mortgages	May 2022 Line of Credit Apr 2022 Mortgage + 2 more
Flood Zone	Zone X (minimal risk)
APN	`1463-18-3-25-018`

Property Details

APN / Parcel Number

Primary APN	`1463-18-3-25-018`
Alternative APNs	`R0087567` `0087567`

Interior

Bedrooms	3 Beds
Full Baths	1.75 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,119 sqft Living Area
Gross Area	2,176 sqft
1st Floor Area	576 sqft
Upper Floors Area	1,024 sqft
Basement Area	576 sqft
Finished Basement	519 sqft
Unfinished Basement	57 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1982
Effective Year Built	Effective 2000
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	2,224 sqft (0.051 acres)
Garage Type	Detached
Garage Area	220 sqft
Parking Spaces	1 Parking Space
Porch	Porch
Porch Area	108 sqft
Deck Area	60 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0087567
Street Address	4150 RIVERSIDE AVE
City	BOULDER
State	CO
Zip	80304-1128
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 18 WILDWOOD
Legal Range	70
Legal Township	1N
Legal Section	18
Legal Subdivision	WILDWOOD & REPLT A - BO
Legal Block	3
Legal Lot Number	18
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3002
Census Tract	12105

Owner

Source: Boulder County records, as of June 15, 2026

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

Owner of Record	2 Individual Names on Record
Mailing Address	4150 RIVERSIDE AVE, BOULDER, CO 80304-1128
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
May 12, 2022	Deed of Trust, Mortgage · Line of Credit HOMETRUST BANK
Apr 19, 2022	Deed of Trust, Mortgage · Conventional Mortgage UNION HOME MORTGAGE CORP
Oct 27, 2020	Warranty Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA
Apr 5, 2017	Warranty Deed, Transfer · Conventional Mortgage JPMORGAN CHASE BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 11, 2025 · Amount on Record
Deed Sale	Mar 11, 2025 · Amount on Record
Prior Sale	Oct 27, 2020 · Amount on Record
Deed Document Number	20254079004
Prior Transfer Date	Jul 1, 2012
Prior Transfer Doc	0003244170
Record Updated	Sep 20, 2026

May 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4150 RIVERSIDE AVE, BOULDER, CO 80304-1128
Transaction Type	Mortgage
Record Updated	May 27, 2022
Title Company	ASCENDANT NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4150 RIVERSIDE AVE, BOULDER, CO 80304-1128

Mortgage

Document Number	0003961933
Date	May 12, 2022
Instrument	3961933

Lender

Name	HOMETRUST BANK
Type	Bank
Address	ASHEVILLE, NC 28802

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

April 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4150 RIVERSIDE AVE, BOULDER, CO 80304-1128
Transaction Type	Mortgage
Record Updated	May 3, 2022
Title Company	ASCENDANT NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4150 RIVERSIDE AVE, BOULDER, CO 80304-1128

Mortgage

Document Number	0003957491
Date	Apr 19, 2022
Instrument	3957491

Lender

Name	UNION HOME MORTGAGE CORP
Type	Mortgage Company
Address	STRONGSVILLE, OH 44136

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2052

October 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Oct 27, 2020
Property Address	4150 RIVERSIDE AVE, BOULDER, CO 80304-1128
Document Number	0003827940
Instrument Date	Oct 14, 2020
Instrument	3827940
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	FIRST AMERICAN

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$83.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4150 RIVERSIDE AVE, BOULDER, CO 80304-1128

Mortgage

Document Number	0003827941
Date	Oct 27, 2020
Instrument	3827941

Lender

Name	WELLS FARGO BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Nov 1, 2050

April 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Apr 5, 2017
Property Address	4150 RIVERSIDE AVE, BOULDER, CO 80304-1128
Document Number	0003584630
Instrument Date	Apr 4, 2017
Instrument	3584630
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	FIDELITY NATIONAL TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$75.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4150 RIVERSIDE AVE, BOULDER, CO 80304-1128

Mortgage

Document Number	0003584631
Date	Apr 5, 2017
Instrument	3584631

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	May 1, 2047

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of June 15, 2026

Property Jurisdictions

Type	Name
State	Colorado
County	Boulder County
Municipality	Boulder City
Unified School District	Boulder Valley School District RE-2 (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$76,554 (+8.8%) Land $27,363 Building $49,191	$1,125,800 (-) Land $402,400 Building $723,400
2025	$6,709.00 (+0.3%)	$70,363 (-13.29%) Land $25,150 Building $45,213	$1,125,800 (-7.05%) Land $402,400 Building $723,400
2023	$6,689.00 (+15.99%)	$81,150 (+30.65%) Land $26,679 Building $54,471	$1,211,200 (+35.53%) Land $398,200 Building $813,000
2022	$5,767.00	$62,112 Land $21,691 Building $40,421	$893,700 Land $312,100 Building $581,600

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

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
Nearest Special Flood Hazard Area	Zone AE, within 100 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 32 policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	32 in force
Nearby Flood Claims	26 (2005–2015)
Claims Outside the SFHA	10 of 26
Most Recent Claim	May 2015 · Severe Storms, Tornadoes, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 23 claims

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

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

Wildfire Risk	Moderate above 46% of the US · lower than 70% of Colorado
Wildfire Likelihood	0.09% annual chance
Exposure	Indirect within 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	CITY OF BOULDER serves 166,080 people · EPA ID CO0107152
Water Source	Surface water
Last State Inspection	Sep 2024
Lead	2 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	Haloacetic acids resolved · Jul 2017
Treatment and Procedure	None last 10 years
Monitoring and Reporting	1 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 460 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
LiveWireNet Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20

May also be available: AT&T, CenturyLink.

Cell Coverage

5G (outdoors only) and 4G LTE

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