235 28th St, Boulder, CO 80305 Property Records

Boulder County property record for 235 28th St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 990 sqft · built 1954
Lot Size	0.136 acres (5,901 sqft)
Owner	2 Individual Names on Record
Last Sale	$735,000 (Oct 2021)
Tax Bill	$4,053 (2025)
Deeds & Mortgages	Oct 2021 Sale & Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1577-05-2-04-019`

Property Details

APN / Parcel Number

Primary APN	`1577-05-2-04-019`
Alternative APNs	`R0007147` `0007147`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	4 Rooms
Stories	1 Story
Building Area	990 sqft Living Area
1st Floor Area	990 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1954
Effective Year Built	Effective 1970
Architectural Style	Ranch
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	5,901 sqft (0.136 acres)
Porch	Porch
Porch Area	136 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0007147
Street Address	235 28TH ST
City	BOULDER
State	CO
Zip	80305-3309
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 19 BLK 3 HIGHLAND PARK
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	HIGHLAND PARK - BO
Legal Block	3
Legal Lot Number	19
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	2
Census Block	2013
Census Tract	12507

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 Individual Names on Record
Mailing Address	235 28TH ST, BOULDER, CO 80305-3309
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Oct 18, 2021 · Amount on Record
Deed Sale	Oct 18, 2021 · Amount on Record
Prior Sale	Aug 29, 2006 · Amount on Record
Deed Document Number	20213921249
Prior Transfer Date	Aug 28, 2006
Prior Transfer Doc	0002801238
Record Updated	Oct 29, 2026

October 2021: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Oct 18, 2021
Property Address	235 28TH ST, BOULDER, CO 80305-3309
Document Number	0003921249
Map Reference	MB 5 PG 65
Instrument Date	Oct 1, 2021
Instrument	3921249
Transaction Type	Transfer
Record Updated	Nov 2, 2021
Title Company	HERITAGE TITLE COMPANY

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$73.50
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	235 28TH ST, BOULDER, CO 80305-3309

Mortgage

Document Number	0003921250
Date	Oct 18, 2021
Instrument	3921250

Lender

Name	CHERRY CREEK MORTGAGE CO INC
Type	Mortgage Company

Agreement

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

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		$41,628 (-2.08%) Land $23,846 Building $17,782	$680,200 (-) Land $418,700 Building $261,500
2025	$4,053.00 (+2.4%)	$42,513 (-14.16%) Land $26,169 Building $16,344	$680,200 (-7.98%) Land $418,700 Building $261,500
2023	$3,958.00 (+14.13%)	$49,527 (+32.61%) Land $30,780 Building $18,747	$739,200 (+37.55%) Land $459,400 Building $279,800
2022	$3,468.00	$37,349 Land $23,310 Building $14,039	$537,400 Land $335,400 Building $202,000

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 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	1 (2013)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides

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 64% of the US · lower than 81% of Colorado
Wildfire Likelihood	0.03% 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 294 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	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