185 S 33rd St, Boulder, CO 80305 Property Records

Boulder County property record for 185 S 33rd St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	4 bd · 1.75 ba · 1,648 sqft · built 1955
Lot Size	0.175 acres (7,630 sqft)
Owner	2 Individual Names on File
Last Sale	$670,000 (Jun 2018)
Tax Bill	$5,618 (2025)
Deeds & Mortgages	Apr 2021 Mortgage Feb 2020 Mortgage + 3 more
Flood Zone	Zone X (moderate risk)
APN	`1577-05-3-10-016`

Property Details

APN / Parcel Number

Primary APN	`1577-05-3-10-016`
Alternative APNs	`R0010408` `0010408`

Interior

Bedrooms	4 Beds
Full Baths	1.75 Baths
Half Baths	1 Half Bath
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,648 sqft Living Area
Gross Area	1,884 sqft
1st Floor Area	1,648 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1955
Effective Year Built	Effective 1985
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Lot Area	7,630 sqft (0.175 acres)
Garage Type	Attached
Garage Area	236 sqft
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0010408
Street Address	185 S 33RD ST
City	BOULDER
State	CO
Zip	80305-3425
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 18 BLK 4 MARTIN ACRES 1
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	MARTIN ACRES 1 - BO
Legal Block	4
Legal Lot Number	18
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	2
Census Block	2008
Census Tract	12507

Owner

185 S 33rd St is owned and occupied by two individuals who bought it in June 2018.

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

Owner of Record	2 Individual Names on File
Mailing Address	185 S 33RD ST, BOULDER, CO 80305-3425
Occupancy	Owner Occupied
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
Apr 7, 2021	Deed of Trust, Mortgage · Conventional Mortgage MIT FCU
Feb 25, 2020	Deed of Trust, Mortgage · Conventional Mortgage MIT FCU
Jun 12, 2018	Warranty Deed, Transfer · Conventional Mortgage CORONA MORTGAGE LLC
Mar 17, 2018	Deed of Trust, Mortgage · Line of Credit ELEVATIONS CU
Feb 2, 2018	Deed of Trust, Mortgage · Line of Credit ELEVATIONS CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 12, 2018 · Amount on File
Deed Sale	Jun 12, 2018 · Amount on File
Prior Sale	Jul 10, 2001 · Amount on File
Deed Document Number	20183660417
Record Updated	Oct 29, 2026

April 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	185 S 33RD ST, BOULDER, CO 80305-3425
Transaction Type	Mortgage
Record Updated	Apr 16, 2021
Title Company	LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003874929
Date	Apr 7, 2021
Instrument	3874929

Lender

Name	MIT FCU
Type	Credit Union
Address	LEXINGTON, MA 02421

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	May 1, 2051

February 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	185 S 33RD ST, BOULDER, CO 80305-3425
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003767962
Date	Feb 25, 2020
Instrument	3767962

Lender

Name	MIT FCU
Type	Credit Union
Address	LEXINGTON, MA 02421

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Mar 1, 2050

June 2018: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jun 12, 2018
Property Address	185 S 33RD ST, BOULDER, CO 80305-3425
Document Number	0003660417
Instrument Date	Jun 11, 2018
Instrument	3660417
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	LAND TITLE GUARANTEE CO

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$67.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	00000

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants
Address	185 S 33RD ST, BOULDER, CO 80305-3425

Mortgage

Document Number	0003660418
Date	Jun 12, 2018
Instrument	3660418

Lender

Name	CORONA MORTGAGE LLC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	361 Months
Due	Jul 1, 2048

March 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	185 S 33RD ST, BOULDER, CO 80305-3425
Document Number	0003646603
Instrument Date	Mar 17, 2018
Transaction Type	Mortgage
Record Updated	Apr 4, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	185 S 33RD ST BOULDER CO 803053425, BOULDER, CO 80305-3425

Mortgage

Document Number	0003646603
Date	Mar 22, 2018
Instrument	3646603

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	240 Months
Due	Mar 21, 2038

Interest

Rate Type	Adjustable Rate

February 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	185 S 33RD ST, BOULDER, CO 80305-3425
Document Number	0003639755
Instrument Date	Feb 2, 2018
Transaction Type	Mortgage
Record Updated	Feb 13, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	185 S 33RD ST BOULDER CO 803053425, BOULDER, CO 80305-3425

Mortgage

Document Number	0003639755
Date	Feb 7, 2018
Instrument	3639755

Lender

Name	ELEVATIONS CU
Address	BOULDER, CO 80301

Agreement

Type	Line of Credit
Amount	Amount on Record
Term	240 Months
Due	Feb 6, 2038

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

The 2025 property tax bill for 185 S 33rd St was $5,618, up 0.8% from the year before.

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		$58,426 (+0.6%) Land $34,429 Building $23,997	$929,200 (-) Land $576,300 Building $352,900
2025	$5,618.00 (+0.81%)	$58,075 Land $36,019 Building $22,056	$929,200 Land $576,300 Building $352,900
2024	$5,573.00 (+1.81%)
2023	$5,474.00 (+13.45%)	$66,203 (+29.42%) Land $42,210 Building $23,993	$988,100 (+34.25%) Land $630,000 Building $358,100
2022	$4,825.00	$51,152 Land $31,310 Building $19,842	$736,000 Land $450,500 Building $285,500

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 185 S 33rd St in Zone X, an area of moderate flood risk, though there have been 1 flood claim nearby since 2013.

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
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

Wildfire risk around 185 S 33rd St is low, with a 0.05% annual chance of 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 515 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: AT&T.

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