203 Riverside Dr, Lyons, CO 80540 Property Records

Boulder County property record for 203 Riverside Dr, Lyons, CO 80540 · Last verified June 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	2 Beds
Bathrooms	2.25 Baths
Year Built	Built 2015
Square Footage	1,736 sqft Living Area
Lot Size	19,284 sqft (0.443 acres)
Occupancy	Owner Occupied
Last Sale	$635,000 (2020)
Tax Bill	$3,781.00 (2025)

Property Details

APN / Parcel Number

Primary APN	`1199-34-4-09-009`
Alternative APNs	`R0053762` `0053762`

Interior

Bedrooms	2 Beds
Full Baths	2.25 Baths
Partial Baths	2 Partial Baths
Total Rooms	7 Rooms
Building Area	1,736 sqft Living Area
Gross Area	2,204 sqft Gross Area
1st Floor	1,136 sqft 1st Floor
Basement Area	600 sqft Basement
Finished Basement	600 sqft Finished
Stories	1 Stories
Interior Structure	Wallboard/Drywall Interior Structure

Exterior

Year Built	Built 1965
Effective Year Built	Effective 2015
Architectural Style	Ranch Style
Exterior Material	Wood Shingle Exterior
Construction Type	Frame Construction
Roof Material	Asphalt Roof
Lot Area	19,284 sqft (0.443 acres)
Parking Spaces	2 Parking Spaces
Garage Type	Attached Garage
Garage Area	468 sqft Garage

Exterior Amenities

Deck Area	550 sqft Deck
Patio Area	1,172 sqft Patio
Porch	Porch
Porch Area	30 sqft Porch

Utilities and HVAC

Heating System	Forced Air with Air Conditioning Heating

Location & Zoning

Account Number	R0053762
Street Address	203 RIVERSIDE DR
City	LYONS
State	CO
Zip	80540-8991
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	LOTS 13-14 BLK 4 & STRIP 4 FT X 18 FT ADJACENT TO LOT 13 & LOT 3 BLK 2 RIVERSIDE 1935 AMENDMENT
Legal Range	72
Legal Township	3N
Legal Section	34
Legal Subdivision	RIVERSIDE - MT
Legal Block	4,2
Legal Lot Number	13
Jurisdiction	BOULDER CO
Minor Civil Division	UPPER ST. VRAIN
Census Blockgroup	1
Census Block	1045
Census Tract	13602

Owner

Source: Boulder County records · APN 1199-34-4-09-009

Assessment roll updated June 15, 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	2 Individual Names on File
Mailing Address	203 RIVERSIDE DR, LYONS, CO 80540-8991
Occupancy	Owner Occupied
Owner Type	Owner is an Individual, Couple or Unincorporated Entity
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Aug 21, 2020 · Amount on Record
Deed Sale	Aug 21, 2020 · Amount on Record
Prior Sale	May 01, 2017 · Amount on Record
Deed Doc Number	20203808996
Prior Transfer Date	Jan 07, 2002
Prior Transfer Doc	0002255526
Record Refreshed	Sep 20, 2026

May 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	May 01, 2017
Property Address	203 RIVERSIDE DR, LYONS, CO 80540-8991
Document Number	0003589483
Instrument Date	Apr 28, 2017
Instrument	3589483
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	FIDELITY NATIONAL TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on File
Loan-to-Value (LTV)	LTV on Record
Tax	$43.50
Amount Accuracy	Full Amount Stated
Additional	Arms Length Transaction

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	203 RIVERSIDE DR, LYONS, CO 80540-8991

Mortgage

Document Number	0003589484
Date	May 01, 2017
Instrument	3589484

Lender

Name	FLAGSTAR BANK FSB
Type	Bank

Agreement

Type	Federal Housing Administration (FHA) Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 01, 2047

Tax Assessment & Valuation

Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 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

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
2026		$41,908 (+8.8%) Land $2,985 Building $38,923	$616,300 (-) Land $43,900 Building $572,400
2025	$3,781.00 (+4.91%)	$38,519 (-14.19%) Land $2,744 Building $35,775	$616,300 (-8.01%) Land $43,900 Building $572,400
2023	$3,604.00 (+7.17%)	$44,890 (+22.84%) Land $2,546 Building $42,344	$670,000 (+27.42%) Land $38,000 Building $632,000
2022	$3,363.00	$36,543 Land $2,766 Building $33,777	$525,800 Land $39,800 Building $486,000

Flood & Wildfire

203 Riverside Dr is in FEMA Zone X, outside the Special Flood Hazard Area, with direct wildfire exposure (Extreme risk).

Flood

Source: FEMA National Flood Hazard Layer · Boulder County (08013C), updated October 14, 2026

FEMA Flood Zone	Zone X moderate flood hazard · within the 0.2% annual chance floodplain
Special Flood Hazard Area	No
Nearest Special Flood Hazard Area	Zone AE, within 100 ft

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020

Wildfire Risk to Homes	Extreme 98th percentile of exposed land nationally · 99th in Colorado
Wildfire Likelihood	Extreme — about 1 in 57 per year
Exposure	Direct burnable vegetation at the parcel

Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.

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