1850 Folsom St, Apt 505, Boulder, CO 80302 Property Records

Boulder County property record for 1850 Folsom St, Apt 505, Boulder, CO 80302

Property Summary

Property Type	Condominium
Details	2 bd · 1.75 ba · 1,277 sqft · built 1971
Lot Size	0.001 acres (25 sqft)
Owner	2 Individual Names on File
Last Sale	$450,000 (Mar 2019)
Tax Bill	$3,830 (2025)
Deeds & Mortgages	Mar 2019 Sale
Flood Zone	Zone X (moderate risk)
APN	`1463-29-3-05-042`

Property Details

APN / Parcel Number

Primary APN	`1463-29-3-05-042`
Alternative APNs	`R0076400` `0076400`

Interior

Bedrooms	2 Beds
Full Baths	1.75 Baths
Half Baths	1 Half Bath
Total Rooms	4 Rooms
Units	61 Units
Stories	1 Story
Building Area	1,277 sqft Living Area
1st Floor Area	1,277 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1971
Effective Year Built	Effective 1971
Architectural Style	Condo/Apartment
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Lot Area	25 sqft (0.001 acres)
Garage Type	Carport
Garage Area	162 sqft
Carport	Carport
Carport Area	162 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0076400
Street Address	1850 FOLSOM ST, 505
City	BOULDER
State	CO
Zip	80302-5717
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	UNIT 505 & UND .00962 INT GCE HORIZON WEST CONDOS AMENDED 2
Legal Range	70
Legal Township	1N
Legal Section	29
Legal Subdivision	HORIZON WEST CONDOS AMENDED 2 - BO
Legal Block	2
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	2
Census Block	2013
Census Tract	12206

Owner

Source: Boulder County records · APN 1463-29-3-05-042

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	2110 VASSAR DR, BOULDER, CO 80305-5609
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Mar 07, 2019 · Amount on Record
Deed Sale	Mar 07, 2019 · Amount on Record
Prior Sale	Jun 04, 1997 · Amount on Record
Deed Document Number	20193701008
Record Updated	Sep 20, 2026

March 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	Mar 07, 2019
Property Address	1850 FOLSOM ST APT 505, 505, BOULDER, CO 80302-5717
Document Number	0003701008
Instrument Date	Mar 06, 2019
Instrument	3701008
Transaction Type	Transfer
Record Updated	Mar 14, 2019

Transaction

Amount	Amount Recorded
Tax	$45.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	2110 VASSAR DR BOULDER CO 803055609, BOULDER, CO 80305-5609

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
Municipality	Boulder City
Unified School District	Boulder Valley School District RE-2 (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		$42,792 (+8.8%) Building $42,792	$629,300 (-) Building $629,300
2025	$3,830.00 (+15.19%)	$39,331 (-4.83%) Building $39,331	$629,300 (+2.02%) Building $629,300
2023	$3,325.00 (+3.74%)	$41,327 (+22.6%) Building $41,327	$616,827 (+27.18%) Building $616,827
2022	$3,205.00	$33,708 Building $33,708	$485,000 Building $485,000

Flood & Wildfire

Source: FEMA National Flood Hazard Layer as of October 14, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X moderate risk
500-Year Floodplain	Yes 0.2% annual chance
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 36 individual policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	157 units insured incl. 121 condo units
Nearby Flood Claims	1 (2013)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides

Wildfire

Wildfire Risk	Not rated no burnable land within ember reach

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.

Internet Providers

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

Provider	Max Down / Up (Mbps)
Ayva Fixed Wireless	2,500 / 2,500
Lumen Technologies Fiber · DSL in parts of the area	2,000 / 1,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
Live Wire Networks Fixed Wireless	250 / 100
T-Mobile USA Fixed Wireless	100 / 20

May also be available: AT&T.

Based on FCC filings for 663 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 BOULDER serves 166,080 people
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 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.