1742 Walnut St, Boulder, CO 80302 Property Records

Boulder County property record for 1742 Walnut St, Boulder, CO 80302

Property Summary

Property Type	Multi-Family Dwellings
Details	12 bd · 7 ba · 3,558 sqft · built 1976
Lot Size	0.264 acres (11,488 sqft)
Owner	Company Name on Record
Last Sale	$250,000 (Oct 1990)
Tax Bill	$15,197 (2025)
Deeds & Mortgages	May 2020 Transfer
Flood Zone	Zone X (moderate risk)
APN	`1463-30-8-09-010`

Property Details

APN / Parcel Number

Primary APN	`1463-30-8-09-010`
Alternative APNs	`R0007039` `0007039`

Interior

Bedrooms	12 Beds
Full Baths	7 Baths
Half Baths	2 Half Baths
Total Rooms	20 Rooms
Units	12 Units
Building Area	3,558 sqft Living Area
1st Floor Area	2,374 sqft
Upper Floors Area	1,184 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1976
Effective Year Built	Effective 1976
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Lot Area	11,488 sqft (0.264 acres)
Deck Area	172 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0007039
Street Address	1742 WALNUT ST
City	BOULDER
State	CO
Zip	80302-5530
Property Category	Residential
Property Type	Residential > Multi-Unit > Multi-Family Dwellings
Legal Description	N 1/2 LOT 8 CHAMBERLAINS & TR 539 30-1N-70
Legal Range	70
Legal Township	1N
Legal Section	30
Legal Subdivision	CHAMBERLAINS - BO
Legal Tract	539
Legal Block	2
Legal Lot Number	8
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	2
Census Block	2008
Census Tract	12205

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	Company Name on Record
Mailing Address	2525 ARAPAHOE AVE, E4, BOULDER, CO 80302-6746
Owner Type	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 12, 1990 · Amount on Record
Deed Sale	Oct 12, 1990 · Amount on Record
Prior Sale	Jan 10, 1975
Deed Document Number	19901069019
Last Transfer Date	Apr 15, 2020
Transfer Doc	0003786117
Record Updated	Oct 29, 2026

May 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOULDER CO
Recording Date	May 26, 2020
Property Address	1742 WALNUT ST, BOULDER, CO 80302-5530
Document Number	0003786117
Instrument Date	Apr 15, 2020
Instrument	3786117
Transaction Type	Transfer
Record Updated	Apr 15, 2022
Title Company	FIRST AMERICAN

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2525 ARAPAHOE AVE # E4444, E4444, BOULDER, CO 80302-6720

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		$163,125 (+5.71%) Land $69,163 Building $93,962	$2,468,900 (-) Land $1,087,100 Building $1,381,800
2025	$15,197.00 (-1.64%)	$154,307 (-11.38%) Land $67,944 Building $86,363	$2,468,900 (-5%) Land $1,087,100 Building $1,381,800
2024	$15,451.00 (+1.87%)
2023	$15,168.00 (+27.69%)	$174,120 (+41.47%) Land $81,774 Building $92,346	$2,598,800 (+43.58%) Land $1,220,500 Building $1,378,300
2022	$11,879.00	$123,080 Land $51,000 Building $72,080	$1,810,000 Land $750,000 Building $1,060,000

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 moderate risk
500-Year Floodplain	Yes 0.2% annual chance
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 31 individual policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	64 units insured incl. 33 condo units
Nearby Flood Claims	6 (2013)
Claims Outside the SFHA	2 of 6
Most Recent Claim	Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 6 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	Low lower than 98% of the US · lower than 99.2% of Colorado
Wildfire Likelihood	Under 0.01% annual chance
Exposure	Direct burnable vegetation

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 432 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Ayva Networks Fixed Wireless	2,500 / 2,500
CenturyLink Fiber · DSL in parts of the area	2,000 / 1,000
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
LiveWireNet Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20