524 18th St, Boulder, CO 80302 Property Records

Boulder County property record for 524 18th St, Boulder, CO 80302

Property Summary

Property Type	Multi-Family Dwellings
Details	5 bd · 2.5 ba · 2,196 sqft · built 1925
Lot Size	0.129 acres (5,632 sqft)
Owner	Company Name on Record
Last Sale	$799,000 (Aug 2018)
Tax Bill	$8,938 (2025)
Deeds & Mortgages	Jun 2022 Sale Jul 2021 Mortgage + 2 more
Flood Zone	Zone X (moderate risk)
APN	`1577-06-2-08-003`

Property Details

APN / Parcel Number

Primary APN	`1577-06-2-08-003`
Alternative APNs	`R0008648` `0008648`

Interior

Bedrooms	5 Beds
Full Baths	2.5 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Units	2 Units
Stories	1 Story
Building Area	2,196 sqft Living Area
1st Floor Area	1,119 sqft
Basement Area	885 sqft
Finished Basement	885 sqft
Interior Walls	Plaster

Exterior

Year Built	Built 1925
Effective Year Built	Effective 1983
Architectural Style	Ranch
Exterior Material	Combination
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	5,632 sqft (0.129 acres)
Garage Type	Detached
Garage Area	480 sqft
Parking Spaces	2 Parking Spaces

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0008648
Street Address	524 18TH ST
City	BOULDER
State	CO
Zip	80302-7966
Property Category	Residential
Property Type	Residential > Multi-Unit > Multi-Family Dwellings
Legal Description	LOTS 5-6 LESS N 75 FT BLK 11 FLORAL PARK
Legal Range	70
Legal Township	1S
Legal Section	06
Legal Subdivision	FLORAL PARK & WEIHOFEN RESUB - BO
Legal Block	11
Legal Lot Number	5
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1011
Census Tract	12505

Owner

Source: Boulder County records, as of June 15, 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	3040 PENNSYLVANIA AVE, BOULDER, CO 80303-1710
Owner Type	Company
Vesting	Limited Liability Company

Deeds, Mortgages & Sale History

Date	Document
Jun 13, 2022	Warranty Deed, Transfer
Jul 19, 2021	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Feb 28, 2019	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LNS
Aug 13, 2018	Warranty Deed, Transfer QUICKEN LNS

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 13, 2018 · Amount on Record
Deed Sale	Aug 13, 2018 · Amount on Record
Prior Sale	Jan 11, 1991 · Amount on Record
Deed Document Number	20183671009
Prior Transfer Date	Jan 1, 2005
Prior Transfer Doc	0002834893
Record Updated	Sep 20, 2026

June 2022: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jun 13, 2022
Property Address	524 18TH ST, BOULDER, CO 80302-7966
Document Number	0003966818
Instrument Date	Jun 10, 2022
Instrument	3966818
Transaction Type	Transfer
Record Updated	Jun 29, 2022

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3040 PENNSYLVANIA AVE, BOULDER, CO 80303-1710

July 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	524 18TH ST, BOULDER, CO 80302-7966
Transaction Type	Mortgage
Record Updated	Apr 15, 2022
Title Company	ASCENDANT TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003900527
Date	Jul 19, 2021
Instrument	3900527

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company
Address	DETROIT, MI 48226

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Aug 1, 2051

February 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	524 18TH ST, BOULDER, CO 80302-7966
Document Number	0003701356
Instrument Date	Feb 28, 2019
Transaction Type	Mortgage
Record Updated	Mar 20, 2019
Title Company	ASCENDANT TITLE INC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	524 18TH ST BOULDER CO 803027966, BOULDER, CO 80302-7966

Mortgage

Document Number	0003701356
Date	Mar 11, 2019
Instrument	3701356

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Mar 10, 2049

August 2018: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Aug 13, 2018
Property Address	524 18TH ST, BOULDER, CO 80302-7966
Document Number	0003671009
Instrument Date	Aug 10, 2018
Instrument	3671009
Transaction Type	Transfer
Record Updated	Jan 14, 2019
Title Company	HERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$79.90
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	3040 PENNSYLVANIA AVE BOULDER CO 803031710, BOULDER, CO 80303-1710

Mortgage

Document Number	3671010
Date	Aug 13, 2018
Instrument	3671010

Lender

Name	QUICKEN LNS
Type	Funding / Finance Company
Address	DETROIT, MI 48226-1906

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Aug 12, 2048

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of June 15, 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		$100,150 (+8.8%) Land $56,902 Building $43,248	$1,472,800 (-) Land $836,800 Building $636,000
2025	$8,938.00 (+22.25%)	$92,050 (+8.19%) Land $52,300 Building $39,750	$1,472,800 (+15.98%) Land $836,800 Building $636,000
2024	$7,311.00 (+1.84%)
2023	$7,179.00 (+27.22%)	$85,084 (+43.82%) Land $53,292 Building $31,792	$1,269,900 (+45.97%) Land $795,400 Building $474,500
2022	$5,643.00	$59,160 Land $35,496 Building $23,664	$870,000 Land $522,000 Building $348,000

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 15 policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	15 in force
Nearby Flood Claims	12 (1994–2013)
Claims Outside the SFHA	4 of 12
Most Recent Claim	Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 10 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	Moderate above 67% of the US · above 60% of Colorado
Wildfire Likelihood	0.3% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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 481 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

May also be available: Magnolia Road Internet Cooperative.

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