2303 Walnut St, Boulder, CO 80302 Property Records

Boulder County property record for 2303 Walnut St, Boulder, CO 80302

Property Summary

Property Type	Multi-Family Dwellings
Details	14 bd · 9.5 ba · 6,661 sqft · built 1925
Lot Size	0.159 acres (6,932 sqft)
Owner	Company Name on File
Last Sale	$422,200 (Sep 1990)
Tax Bill	$21,478 (2025)
Flood Zone	Zone X (moderate risk)
APN	`1463-30-4-31-005`

Property Details

APN / Parcel Number

Primary APN	`1463-30-4-31-005`
Alternative APNs	`R0004307` `0004307`

Interior

Bedrooms	14 Beds
Full Baths	9.5 Baths
Half Baths	2 Half Baths
Total Rooms	24 Rooms
Units	8 Units
Building Area	6,661 sqft Living Area
Gross Area	7,247 sqft
1st Floor Area	2,088 sqft
Upper Floors Area	3,315 sqft
Basement Area	1,258 sqft
Finished Basement	1,258 sqft
Interior Walls	Plaster

Exterior

Year Built	Built 1925
Effective Year Built	Effective 1966
Exterior Material	Brick Veneer
Construction Type	Frame
Lot Area	6,932 sqft (0.159 acres)
Garage Type	Attached
Garage Area	586 sqft
Parking Spaces	2 Parking Spaces
Deck Area	377 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0004307
Street Address	2303 WALNUT ST
City	BOULDER
State	CO
Zip	80302-4692
Property Category	Residential
Property Type	Residential > Multi-Unit > Multi-Family Dwellings
Legal Description	LOT 7 BLK 78 EAST BOULDER
Legal Range	70
Legal Township	1N
Legal Section	30
Legal Subdivision	BOULDER O T EAST & WEST & NORTH - BO
Legal Block	78
Legal Lot Number	7
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	2
Census Block	2001
Census Tract	12205

Owner

Source: Boulder County records · APN 1463-30-4-31-005

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	Company Name on File
Mailing Address	118 WAAULA PL, KIHEI, HI 96753-7711
Owner Type	Company
Vesting	Trust, Revocable Living Trust

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Sep 04, 1990 · Amount on Record
Deed Sale	Sep 04, 1990 · Amount on Record
Prior Sale	Sep 04, 1990 · Amount on Record
Deed Document Number	19901062155
Last Transfer Date	Aug 26, 2015
Transfer Doc	0003472253
Record Updated	Sep 20, 2026

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		$241,400 (+8.8%) Land $57,419 Building $183,981	$3,550,000 (-) Land $844,400 Building $2,705,600
2025	$21,478.00 (-15.57%)	$221,875 (-24.74%) Land $52,775 Building $169,100	$3,550,000 (-19.32%) Land $844,400 Building $2,705,600
2023	$25,440.00 (+112.32%)	$294,800 (+134.33%) Land $39,054 Building $255,746	$4,400,000 (+137.83%) Land $582,900 Building $3,817,100
2022	$11,982.00	$125,803 Land $39,640 Building $86,163	$1,850,035 Land $582,935 Building $1,267,100

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 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

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.