1100 Maxwell Ave, Boulder, CO 80304 Property Records

Boulder County property record for 1100 Maxwell Ave, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.75 ba · 3,441 sqft · built 1898
Lot Size	0.182 acres (7,932 sqft)
Owner	2 Company Names on Record
Last Sale	$1,495,000 (Apr 2014)
Tax Bill	$18,307 (2025)
Deeds & Mortgages	May 2022 Mortgage Apr 2021 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`1461-25-4-17-005`

Property Details

APN / Parcel Number

Primary APN	`1461-25-4-17-005`
Alternative APNs	`R0005527` `0005527`

Interior

Bedrooms	4 Beds
Full Baths	2.75 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	1 Story
Building Area	3,441 sqft Living Area
Gross Area	3,639 sqft
1st Floor Area	1,564 sqft
Upper Floors Area	1,679 sqft
Basement Area	396 sqft
Finished Basement	198 sqft
Unfinished Basement	198 sqft
Interior Walls	Plaster

Exterior

Year Built	Built 1898
Effective Year Built	Effective 2000
Architectural Style	Multi-Level
Exterior Material	Combination
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	7,932 sqft (0.182 acres)

Exterior Amenities

Porch	Porch
Porch Area	207 sqft
Deck Area	92 sqft
Shed	1 Shed
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Hot Water

Location & Zoning

Account Number	R0005527
Street Address	1100 MAXWELL AVE
City	BOULDER
State	CO
Zip	80304-4177
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 5 BREATHS
Legal Range	71
Legal Township	1N
Legal Section	25
Legal Subdivision	BREATHS - BO
Legal Block	1
Legal Lot Number	5
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1011
Census Tract	12204

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	2 Company Names on Record
Mailing Address	1100 MAXWELL AVE, BOULDER, CO 80304-4177
Owner Type	Company
Vesting	Trust, Revocable Trust

Deeds, Mortgages & Sale History

Date	Document
May 9, 2022	Deed of Trust, Mortgage · Conventional Mortgage QUICKEN LOANS LLC
Apr 12, 2021	Intrafamily Transfer, Transfer · ARM QUICKEN LOANS LLC
Jun 25, 2020	Quit Claim Deed, Transfer NOT AVAILABLE

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 28, 2014 · Amount on Record
Deed Sale	Apr 28, 2014 · Amount on Record
Prior Sale	Jun 20, 2008 · Amount on Record
Deed Document Number	20143377293
Last Transfer Date	Sep 18, 2020
Transfer Doc	0003875862
Record Updated	Oct 29, 2026

May 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	1100 MAXWELL AVE, BOULDER, CO 80304-4177
Transaction Type	Mortgage
Record Updated	May 20, 2022
Title Company	AMROCK INC

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003960773
Date	May 9, 2022
Instrument	3960773

Lender

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

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	341 Months
Due	Oct 1, 2050

Interest

Adjustable	Adjustable Rate Rider
Min Rate At Change	2.25%
Max Rate At Change	8%

April 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	BOULDER CO
Recording Date	Apr 12, 2021
Property Address	1100 MAXWELL AVE, BOULDER, CO 80304-4177
Document Number	0003875862
Instrument Date	Sep 18, 2020
Instrument	3875862
Transaction Type	Transfer
Record Updated	Jun 7, 2023
Title Company	AMROCK

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	1100 MAXWELL AVE, BOULDER, CO 80304-4177

Mortgage

Document Number	0003875863
Date	Apr 12, 2021
Instrument	3875863

Lender

Name	QUICKEN LOANS LLC
Type	Mortgage Company

Agreement

Type	ARM
Amount	Amount Recorded
Term	354 Months
Due	Oct 1, 2050

Interest

Rate Type	Adjustable Rate
Rate	3%
Adjustable	Adjustable Rate Rider
Type Change Date	Oct 1, 2030
Change Frequency	Annually
Min Rate At Change	2.25%
Max Rate At Change	8%
Index	1-Year LIBOR
Max Rate	8%

June 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOULDER CO
Recording Date	Jun 25, 2020
Property Address	1100 MAXWELL AVE, BOULDER, CO 80304-4177
Document Number	0003793923
Instrument Date	Jun 12, 2020
Instrument	3793923
Transaction Type	Transfer
Record Updated	Jul 24, 2020
Title Company	NOT AVAILABLE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Revocable Trust
Address	1100 MAXWELL AVE BOULDER CO 803044177, BOULDER, CO 80304-4177

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		$204,143 (+6.32%) Land $114,166 Building $89,977	$3,072,100 (-) Land $1,748,900 Building $1,323,200
2025	$18,307.00 (+1.24%)	$192,006 (-9.88%) Land $109,306 Building $82,700	$3,072,100 (-3.4%) Land $1,748,900 Building $1,323,200
2023	$18,082.00 (+13.92%)	$213,067 (+24.65%) Land $119,005 Building $94,062	$3,180,100 (+29.3%) Land $1,776,200 Building $1,403,900
2022	$15,873.00	$170,933 Land $76,874 Building $94,059	$2,459,460 Land $1,106,100 Building $1,353,360

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 minimal risk
Flood Insurance Requirement	Not required lenders may require it
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	9 in force
Nearby Flood Claims	8 (2013–2022)
Claims Outside the SFHA	6 of 8
Most Recent Claim	Aug 2022 · other causes
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 5 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 63% of the US · lower than 80% of Colorado
Wildfire Likelihood	0.05% annual chance
Exposure	None beyond ember reach

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 684 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
LiveWireNet Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Verizon.

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