3515 28th St, Apt 105, Boulder, CO 80301 Property Records

Boulder County property record for 3515 28th St, Apt 105, Boulder, CO 80301

Property Summary

Property Type	Condominium
Details	2 bd · 1 ba · 748 sqft · built 1983
Lot Size	0.001 acres (25 sqft)
Owner	Individual Name on File
Last Sale	$190,000 (Oct 2025)
Tax Bill	$560 (2024)
Deeds & Mortgages	Oct 2025 Sale & Mortgage Jul 2024 Sale + 3 more
Flood Zone	Zone X (minimal risk)
APN	`1463-20-2-46-005`

Property Details

APN / Parcel Number

Primary APN	`1463-20-2-46-005`
Alternative APNs	`R0095117` `0095117`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	748 sqft Living Area
1st Floor Area	748 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1983
Effective Year Built	Effective 1983
Architectural Style	Condo/Apartment
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	25 sqft (0.001 acres)

Utilities, Heating & Cooling

Heating System	Hot Water

Location & Zoning

Account Number	R0095117
Street Address	3515 28TH ST, 105
City	BOULDER
State	CO
Zip	80301-1561
Property Category	Residential
Property Type	Residential > Condominium / Townhouse > Condominium
Legal Description	UNIT 105 BLDG 1 & UND 1/22 INT GCE PENDLETON SQUARE CONDOS 1
Legal Range	70
Legal Township	1N
Legal Section	20
Legal Subdivision	PENDLETON SQUARE CONDOS PHASE I - BO
Legal Block	3
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3009
Census Tract	12103

Owner

3515 28th St, Apt 105 is owned by an individual who bought it in October 2025.

Source: Boulder County records, as of September 18, 2026

Owner of Record	Individual Name on File
Mailing Address	3515 28TH ST, 105, BOULDER, CO 80301-1561
Owner Type	Individual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
Oct 30, 2025	Special Warranty Deed, Transfer · Conventional Mortgage CROSSCOUNTRY MORTGAGE LLC
Jul 15, 2024	Warranty Deed, Transfer UNKNOWN, ASCENDANT TITLE CO
Jul 15, 2024	Correction Deed
Jan 10, 2024	Correction Deed
Sep 11, 2023	Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Oct 30, 2025 · Amount on File
Deed Sale	Oct 30, 2025 · Amount on File
Prior Sale	Jul 15, 2024 · Amount on File
Deed Document Number	20254107825
Prior Transfer Date	Sep 6, 2023
Prior Transfer Doc	0004021288
Record Updated	Oct 29, 2026

October 2025: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Oct 30, 2025
Property Address	3515 28TH ST APT 105, 105, BOULDER, CO 80301-1561
Document Number	0004107825
Map Reference	DOC 579192
Instrument Date	Oct 30, 2025
Instrument	4107825
Transaction Type	Transfer
Record Updated	Feb 9, 2026
Title Company	LAND TITLE GUARANTEE COMPANY

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$19.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	PO BOX 791, BOULDER, CO 80306-0791

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3515 28TH ST APT 105, 105, BOULDER, CO 80301-1561

Mortgage

Document Number	0004107827
Date	Oct 30, 2025
Instrument	4107827

Lender

Name	CROSSCOUNTRY MORTGAGE LLC
Type	Mortgage Company
Address	CLEVELAND, OH 44114

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Nov 1, 2055

July 2024: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jul 15, 2024
Property Address	3515 28TH ST APT 105, 105, BOULDER, CO 80301-1561
Document Number	0004053516
Map Reference	DOC 579192
Instrument Date	Jul 3, 2024
Instrument	4053516
Transaction Type	Transfer
Record Updated	Feb 9, 2026
Title Company	UNKNOWN, ASCENDANT TITLE CO

Transaction

Amount	Amount on Record
Tax	$35.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	PO BOX 791, BOULDER, CO 80306-0791
Investor	Possibly a Property Investor

July 2024: Correction Deed

Document Type	Correction Deed
Jurisdiction	BOULDER CO
Recording Date	Jul 15, 2024
Property Address	3515 28TH ST APT 105, 105, BOULDER, CO 80301-1561
Document Number	0004053515
Map Reference	DOC 579192
Instrument Date	Jul 1, 2024
Instrument	4053515
Record Updated	Feb 9, 2026

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3515 28TH ST APT 105, 105, BOULDER, CO 80301-1561

January 2024: Correction Deed

Document Type	Correction Deed
Jurisdiction	BOULDER CO
Recording Date	Jan 10, 2024
Property Address	3515 28TH ST APT 105, 105, BOULDER, CO 80301-1561
Document Number	0004033575
Map Reference	MF 1273 DOC 579191
Instrument Date	Jan 9, 2024
Instrument	4033575
Record Updated	Feb 9, 2026

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated

Transferred From (Grantor/Seller)

Name	Verified Name
Address	567 ENTRADA DR, GOLDEN, CO 80401-4875

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3515 28TH ST APT 105, 105, BOULDER, CO 80301-1561

September 2023: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	BOULDER CO
Recording Date	Sep 11, 2023
Property Address	3515 28TH ST APT 105, 105, BOULDER, CO 80301-1561
Document Number	0004021288
Instrument Date	Sep 6, 2023
Instrument	4021288
Transaction Type	Transfer
Record Updated	Feb 9, 2026

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name
Address	567 ENTRADA DR, GOLDEN, CO 80401-4875

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3515 28TH ST APT 105, 105, BOULDER, CO 80301-1561

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		$11,628 (-39.89%) Building $11,628	$190,000 (-38.61%) Building $190,000
2025		$19,344 (+16.92%) Building $19,344	$309,500 (+2.51%) Building $309,500
2024	$560.00 (-60.78%) Additional exemption filed	$16,544 (-18.22%) Building $16,544	$301,918 (-) Building $301,918
2023	$1,428.00 (-17.55%)	$20,229 (+8.4%) Building $20,229	$301,918 (+12.45%) Building $301,918
2022	$1,732.00	$18,661 Building $18,661	$268,500 Building $268,500

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

FEMA maps place 3515 28th St, Apt 105 in Zone X, an area of minimal flood risk, though there have been 18 flood claims nearby since 1995.

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
Flood Insurance Cost	Premium on File median of 28 individual policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	58 units insured incl. 30 condo units
Nearby Flood Claims	18 (1995–2022)
Claims Outside the SFHA	9 of 18
Most Recent Claim	Oct 2022 · rainfall accumulation
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 15 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

Wildfire risk around 3515 28th St, Apt 105 is low, with a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 80% of the US · lower than 91% of Colorado
Wildfire Likelihood	0.01% 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 288 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Ayva Networks Fixed Wireless	2,500 / 2,500
Xfinity Cable · Fiber in parts of the area	2,000 / 250
LiveWireNet Fixed Wireless	250 / 100
CenturyLink DSL · Fiber in parts of the area	140 / 20
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: Verizon.

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