4130 Riverside Ave, Boulder, CO 80304 Property Records

Boulder County property record for 4130 Riverside Ave, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	4 bd · 2 ba · 2,386 sqft · built 1982
Lot Size	0.111 acres (4,843 sqft)
Owner	2 Individual Names on Record
Last Sale	$754,000 (Jul 2020)
Tax Bill	$7,647 (2025)
Deeds & Mortgages	Dec 2021 Mortgage Jul 2020 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1463-18-3-25-020`

Property Details

APN / Parcel Number

Primary APN	`1463-18-3-25-020`
Alternative APNs	`R0087569` `0087569`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	8 Rooms
Stories	2 Stories
Building Area	2,386 sqft Living Area
Gross Area	2,448 sqft
1st Floor Area	612 sqft
Upper Floors Area	1,224 sqft
Basement Area	612 sqft
Finished Basement	550 sqft
Unfinished Basement	62 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1982
Effective Year Built	Effective 1995
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	4,843 sqft (0.111 acres)
Garage Type	Detached
Garage Area	220 sqft
Parking Spaces	1 Parking Space
Porch	Porch
Porch Area	108 sqft
Deck Area	220 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0087569
Street Address	4130 RIVERSIDE AVE
City	BOULDER
State	CO
Zip	80304-1128
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 20 WILDWOOD
Legal Range	70
Legal Township	1N
Legal Section	18
Legal Subdivision	WILDWOOD & REPLT A - BO
Legal Block	3
Legal Lot Number	20
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3002
Census Tract	12105

Owner

Source: Boulder County records, as of September 18, 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	4130 RIVERSIDE AVE, BOULDER, CO 80304-1128
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Dec 13, 2021	Deed of Trust, Mortgage · Conventional Mortgage WINNPOINTE CORPORATION
Jul 17, 2020	Special Warranty Deed, Transfer · Conventional Mortgage FIRST WESTERN TRUST BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 17, 2020 · Amount on Record
Deed Sale	Jul 17, 2020 · Amount on Record
Prior Sale	May 3, 2010 · Amount on Record
Deed Document Number	20203798783
Prior Transfer Date	Dec 15, 2015
Prior Transfer Doc	0003491902
Record Updated	Oct 29, 2026

December 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4130 RIVERSIDE AVE, BOULDER, CO 80304-1128
Transaction Type	Mortgage
Record Updated	Jan 3, 2022
Title Company	CSTONE TITLE, CAPSTONE TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4130 RIVERSIDE AVE, BOULDER, CO 80304-1128

Mortgage

Document Number	0003934015
Date	Dec 13, 2021
Instrument	3934015

Lender

Name	WINNPOINTE CORPORATION
Type	Mortgage Company
Address	ORANGE, CA 92868

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	359 Months
Due	Nov 1, 2051

July 2020: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jul 17, 2020
Property Address	4130 RIVERSIDE AVE, BOULDER, CO 80304-1128
Document Number	0003798783
Instrument Date	Jul 13, 2020
Instrument	3798783
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	HERITAGE TITLE CO

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$75.40
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	4130 RIVERSIDE AVE, BOULDER, CO 80304-1128

Mortgage

Document Number	0003798784
Date	Jul 17, 2020
Instrument	3798784

Lender

Name	FIRST WESTERN TRUST BANK
Type	Bank

Agreement

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

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of September 18, 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		$82,498 (+2.86%) Land $35,619 Building $46,879	$1,283,200 (-) Land $593,800 Building $689,400
2025	$7,647.00 (+34.89%)	$80,201 (+15.67%) Land $37,113 Building $43,088	$1,283,200 (+23.99%) Land $593,800 Building $689,400
2023	$5,669.00 (-7.13%)	$69,338 (+5.47%) Land $39,369 Building $29,969	$1,034,900 (+9.41%) Land $587,600 Building $447,300
2022	$6,104.00	$65,740 Land $32,005 Building $33,735	$945,900 Land $460,500 Building $485,400

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 71% of Colorado
Wildfire Likelihood	0.08% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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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