2275 Mariposa Ave, Boulder, CO 80302 Property Records

Boulder County property record for 2275 Mariposa Ave, Boulder, CO 80302

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 980 sqft · built 1952
Lot Size	0.116 acres (5,068 sqft)
Owner	2 Individual Names on Record
Last Sale	$550,000 (Aug 2017)
Tax Bill	$5,735 (2025)
Deeds & Mortgages	Aug 2020 Mortgage Aug 2017 Sale & Mortgage
Flood Zone	Zone X (moderate risk)
APN	`1577-06-1-04-021`

Property Details

APN / Parcel Number

Primary APN	`1577-06-1-04-021`
Alternative APNs	`R0004739` `0004739`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	4 Rooms
Stories	1 Story
Building Area	980 sqft Living Area
1st Floor Area	980 sqft
Interior Walls	Plaster

Exterior

Year Built	Built 1952
Effective Year Built	Effective 1985
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	5,068 sqft (0.116 acres)
Garage Type	Detached
Garage Area	252 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0004739
Street Address	2275 MARIPOSA AVE
City	BOULDER
State	CO
Zip	80302-7938
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 22 BLK 6 INTERURBAN PARK PARK
Legal Range	70
Legal Township	1S
Legal Section	06
Legal Subdivision	INTERURBAN PARK - BO
Legal Block	6
Legal Lot Number	22
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1015
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	2 Individual Names on Record
Mailing Address	2275 MARIPOSA AVE, BOULDER, CO 80302-7938
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Aug 31, 2020	Deed of Trust, Mortgage · Conventional Mortgage ELEVATIONS CU
Aug 10, 2017	Warranty Deed, Transfer · Conventional Mortgage ELEVATIONS CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Aug 10, 2017 · Amount on Record
Deed Sale	Aug 10, 2017 · Amount on Record
Prior Sale	Apr 20, 1993
Deed Document Number	20173608388
Record Updated	Sep 20, 2026

August 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	2275 MARIPOSA AVE, BOULDER, CO 80302-7938
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	FIDELITY NATIONAL TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003811543
Date	Aug 31, 2020
Instrument	3811543

Lender

Name	ELEVATIONS CU
Type	Credit Union
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Sep 1, 2050

August 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Aug 10, 2017
Property Address	2275 MARIPOSA AVE, BOULDER, CO 80302-7938
Document Number	0003608388
Instrument Date	Aug 8, 2017
Instrument	3608388
Transaction Type	Transfer
Record Updated	Aug 17, 2017
Title Company	LAND TITLE GUARANTEE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$55.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	2275 MARIPOSA AVE BOULDER CO 803027938, BOULDER, CO 80302-7938

Mortgage

Document Number	3608389
Date	Aug 10, 2017
Instrument	3608389

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Aug 9, 2047

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		$65,443 (+8.8%) Land $47,464 Building $17,979	$962,400 (-) Land $698,000 Building $264,400
2025	$5,735.00 (+17.06%)	$60,150 (-0.44%) Land $43,625 Building $16,525	$962,400 (+6.73%) Land $698,000 Building $264,400
2023	$4,899.00 (+2.62%)	$60,414 (+17.52%) Land $44,347 Building $16,067	$901,700 (+21.9%) Land $661,900 Building $239,800
2022	$4,774.00	$51,409 Land $36,654 Building $14,755	$739,700 Land $527,400 Building $212,300

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 100 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	Low lower than 62% of the US · lower than 78% 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 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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