820 37th St, Boulder, CO 80303 Property Records

Boulder County property record for 820 37th St, Boulder, CO 80303

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,433 sqft · built 1961
Lot Size	0.168 acres (7,300 sqft)
Owner	2 Individual Names on File
Last Sale	$359,000 (May 2007)
Tax Bill	$5,016 (2025)
Deeds & Mortgages	Nov 2019 Mortgage May 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1463-32-4-19-007`

Property Details

APN / Parcel Number

Primary APN	`1463-32-4-19-007`
Alternative APNs	`R0010919` `0010919`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	8 Rooms
Stories	1 Story
Building Area	1,433 sqft Living Area
1st Floor Area	1,433 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1961
Effective Year Built	Effective 1995
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	7,300 sqft (0.168 acres)

Exterior Amenities

Porch	Porch
Porch Area	380 sqft
Shed	1 Shed
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0010919
Street Address	820 37TH ST
City	BOULDER
State	CO
Zip	80303-2444
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 7 BLK 6 BASELINE 2
Legal Range	70
Legal Township	1N
Legal Section	32
Legal Subdivision	BASELINE 2 - BO
Legal Block	6
Legal Lot Number	7
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1006
Census Tract	12608

Owner

820 37th St is owned and occupied by two individuals who bought it in May 2007.

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

Owner of Record	2 Individual Names on File
Mailing Address	820 37TH ST, BOULDER, CO 80303-2444
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
Nov 20, 2019	Deed of Trust, Mortgage · Conventional Mortgage UNITED WHOLESALE MORTGAGE
May 20, 2020	Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE AFFINITY LLC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	May 7, 2007 · Amount on File
Deed Sale	May 7, 2007 · Amount on File
Prior Sale	Jun 1, 2005 · Amount on File
Deed Document Number	20072853917
Prior Transfer Date	Aug 25, 2006
Prior Transfer Doc	0002801075
Record Updated	Oct 29, 2026

November 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	820 37TH ST, BOULDER, CO 80303-2444
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003750138
Date	Nov 20, 2019
Instrument	3750138

Lender

Name	UNITED WHOLESALE MORTGAGE
Type	Mortgage Company
Address	PONTIAC, MI 48341

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	180 Months
Due	Nov 1, 2034

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	820 37TH ST, BOULDER, CO 80303-2444
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	ASCENDANT TITLE CO

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003785470
Date	May 20, 2020
Instrument	3785470

Lender

Name	GUARANTEED RATE AFFINITY LLC
Type	Mortgage Company
Address	CHICAGO, IL 60613

Agreement

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

Tax Assessment & Valuation

The 2025 property tax bill for 820 37th St was $5,016.

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		$52,476 (-0.25%) Land $25,289 Building $27,187	$841,700 (-) Land $441,900 Building $399,800
2025	$5,016.00	$52,607 Land $27,619 Building $24,988	$841,700 Land $441,900 Building $399,800
2023	$5,140.00 (+15.66%)	$63,207 (+32.05%) Land $36,394 Building $26,813	$943,400 (+36.98%) Land $543,200 Building $400,200
2022	$4,444.00	$47,865 Land $26,278 Building $21,587	$688,700 Land $378,100 Building $310,600

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 820 37th St in Zone X, an area of minimal flood risk, though there have been 8 flood claims 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 minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 42 policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	42 in force
Nearby Flood Claims	8 (2013)
Claims Outside the SFHA	6 of 8
Most Recent Claim	Oct 2013 · other causes
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 7 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

The area around 820 37th St has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire Risk	Not rated no burnable land within 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 584 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

May also be available: T-Mobile.

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