4712 18th St, Boulder, CO 80304 Property Records

Boulder County property record for 4712 18th St, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	1 bd · 1 ba · 620 sqft · built 2004
Lot Size	0.036 acres (1,583 sqft)
Owner	Individual Name on File
Last Sale	$160,096 (Sep 2021)
Tax Bill	$1,041 (2025)
Deeds & Mortgages	Sep 2021 Sale
Flood Zone	Zone X (minimal risk)
APN	`1463-07-0-40-034`

Property Details

APN / Parcel Number

Primary APN	`1463-07-0-40-034`
Alternative APNs	`R0504954` `0504954`

Interior

Bedrooms	1 Bed
Full Baths	1 Bath
Total Rooms	4 Rooms
Stories	1 Story
Building Area	620 sqft Living Area
Gross Area	840 sqft
1st Floor Area	620 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 2004
Effective Year Built	Effective 2004
Architectural Style	Townhouse
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	1,583 sqft (0.036 acres)
Garage Type	Attached
Garage Area	220 sqft
Parking Spaces	1 Parking Space
Porch	Porch
Porch Area	80 sqft
Deck Area	65 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0504954
Street Address	4712 18TH ST
City	BOULDER
State	CO
Zip	80304-2261
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 34 BLK 18 HOLIDAY NEIGHBORHOOD
Legal Range	70
Legal Township	1N
Legal Section	07
Legal Subdivision	HOLIDAY NEIGHBORHOOD
Legal Block	18
Legal Lot Number	34
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1003
Census Tract	12105

Owner

Source: Boulder County records · APN 1463-07-0-40-034

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	Individual Name on File
Mailing Address	4712 18TH ST, BOULDER, CO 80304-2261
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Sep 23, 2021 · Amount on Record
Deed Sale	Sep 23, 2021 · Amount on Record
Prior Sale	Dec 21, 2004 · Amount on Record
Deed Document Number	20213916078
Record Updated	Sep 20, 2026

September 2021: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Sep 23, 2021
Property Address	4712 18TH ST, BOULDER, CO 80304-2261
Document Number	0003916078
Instrument Date	Sep 22, 2021
Instrument	3916078
Transaction Type	Transfer
Record Updated	Oct 13, 2021
Title Company	LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO

Transaction

Amount	Amount Recorded
Tax	$16.01
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	4712 18TH ST, 4712, BOULDER, CO 80304-2261

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4712 18TH ST, BOULDER, CO 80304-2261

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		$11,886 (+8.81%) Land $5,943 Building $5,943	$174,782 (-) Land $87,391 Building $87,391
2025	$1,041.00 (+65.76%)	$10,924 (-0.32%) Land $5,462 Building $5,462	$174,782 (+6.86%) Land $87,391 Building $87,391
2023	$628.00 (-36.5%)	$10,959 (+2.84%) Land $5,479 Building $5,480	$163,567 (+6.68%) Land $81,783 Building $81,784
2022	$989.00	$10,656 Land $5,328 Building $5,328	$153,330 Land $76,665 Building $76,665

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 minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	6 in force
Nearby Flood Claims	1 (1982)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Jul 1982 · tidal / storm surge

Wildfire

Wildfire Risk	High above 80% of the US · above 82% of Colorado
Wildfire Likelihood	0.7% annual chance
Exposure	Direct burnable vegetation at the parcel

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
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
Live Wire Networks Fixed Wireless	250 / 100
Lumen Technologies DSL · Fiber in parts of the area	140 / 20
AT&T Fixed Wireless	100 / 20

May also be available: T-Mobile USA.

Based on FCC filings for 748 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.