2473 20th St, Boulder, CO 80304 Property Records

Boulder County property record for 2473 20th St, Boulder, CO 80304

Property Summary

Property Type	Multi-Family Dwellings
Details	6 bd · 5.75 ba · 3,658 sqft · built 1969
Lot Size	0.343 acres (14,935 sqft)
Owner	Company Name on Record
Last Sale	$475,000 (Jun 1999)
Tax Bill	$14,717 (2025)
Deeds & Mortgages	Apr 2023 Sale Apr 2022 Line of Credit + 3 more
Flood Zone	Zone X (minimal risk)
APN	`1463-30-5-02-001`

Property Details

APN / Parcel Number

Primary APN	`1463-30-5-02-001`
Alternative APNs	`R0007694` `0007694`

Interior

Bedrooms	6 Beds
Full Baths	5.75 Baths
Half Baths	1 Half Bath
Total Rooms	12 Rooms
Units	6 Units
Building Area	3,658 sqft Living Area
Gross Area	4,382 sqft
1st Floor Area	2,008 sqft
Upper Floors Area	825 sqft
Basement Area	1,549 sqft
Finished Basement	825 sqft
Unfinished Basement	724 sqft
Interior Walls	Plaster

Exterior

Year Built	Built 1969
Effective Year Built	Effective 1990
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Lot Area	14,935 sqft (0.343 acres)
Garage Type	Detached
Garage Area	200 sqft
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Hot Water

Location & Zoning

Account Number	R0007694
Street Address	2473 20TH ST
City	BOULDER
State	CO
Zip	80304-3677
Property Category	Residential
Property Type	Residential > Multi-Unit > Multi-Family Dwellings
Legal Description	LOTS 1-3 BLK K WIDNERS NORTH 2 IMPS
Legal Range	70
Legal Township	1N
Legal Section	30
Legal Subdivision	WIDNERS NORTH - BO
Legal Block	K
Legal Lot Number	1
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	2
Census Block	2015
Census Tract	12107

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	Company Name on Record
Mailing Address	2473 20TH ST, BOULDER, CO 80304-3677
Owner Type	Company
Vesting	Limited Liability Partnership

Deeds, Mortgages & Sale History

Date	Document
Apr 4, 2023	Special Warranty Deed, Transfer
Apr 4, 2022	Deed of Trust, Mortgage · Line of Credit AMG NATIONAL TRUST BANK
Feb 21, 2020	Deed of Trust, Mortgage · Line of Credit AMG NATIONAL TRUST BANK
Jan 1, 2020	Deed of Trust, Mortgage · Conventional Mortgage PAT G MARTIN
Feb 1, 2018	Deed of Trust, Mortgage PATRICK GILMARTIN

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 2, 1999 · Amount on Record
Deed Sale	Jun 2, 1999 · Amount on Record
Prior Sale	Jan 9, 1987 · Amount on Record
Deed Document Number	19991945676
Last Transfer Date	Jan 1, 2005
Transfer Doc	0002716914
Record Updated	Oct 29, 2026

April 2023: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Apr 4, 2023
Property Address	2473 20TH ST, BOULDER, CO 80304-3677
Document Number	0004002705
Instrument Date	Apr 4, 2023
Instrument	4002705
Transaction Type	Transfer
Record Updated	Apr 12, 2023

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	1140 US HIGHWAY 287400-29, BROOMFIELD, CO 80020

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2473 20TH ST, BOULDER, CO 80304-3677

April 2022: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	2473 20TH ST, BOULDER, CO 80304-3677
Transaction Type	Mortgage
Record Updated	Apr 18, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	201 29TH ST, BOULDER, CO 80305-3313

Mortgage

Document Number	0003954527
Date	Apr 4, 2022
Instrument	3954527

Lender

Name	AMG NATIONAL TRUST BANK
Type	Bank
Address	BOULDER, CO 80302

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	23 Months
Due	Mar 24, 2024

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

February 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	2473 20TH ST, BOULDER, CO 80304-3677
Transaction Type	Mortgage
Record Updated	Apr 15, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003767453
Date	Feb 21, 2020
Instrument	3767453

Lender

Name	AMG NATIONAL TRUST BANK
Type	Bank
Address	BOULDER, CO 80302

Agreement

Type	Line of Credit
Amount	Amount Recorded

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

January 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	2473 20TH ST, BOULDER, CO 80304-3677
Document Number	0003763892
Instrument Date	Jan 1, 2020
Transaction Type	Mortgage
Record Updated	Feb 20, 2020
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	PO BOX 18261 BOULDER CO 803081261, BOULDER, CO 80308-1261

Mortgage

Document Number	0003763892
Date	Feb 3, 2020
Instrument	3763892

Lender

Name	PAT G MARTIN
Address	1478 MEADOW LARK DR, BOULDER, CO 80303-1442

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded

February 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	2473 20TH ST, BOULDER, CO 80304-3677
Document Number	0003639766
Instrument Date	Feb 1, 2018
Transaction Type	Mortgage
Record Updated	Feb 13, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	PO BOX 18261 BOULDER CO 803081261, BOULDER, CO 80308-1261

Mortgage

Document Number	0003639766
Date	Feb 7, 2018
Instrument	3639766

Lender

Name	PATRICK GILMARTIN
Address	1478 MEADOW LARK DR, BOULDER, CO 80303-1442

Agreement

Amount	Amount Recorded
Term	60 Months
Due	Feb 6, 2023

Interest

Rate	18%

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		$160,412 (+5.66%) Land $94,629 Building $65,783	$2,429,000 (-) Land $1,391,600 Building $1,037,400
2025	$14,717.00 (-6.88%)	$151,813 (-16.04%) Land $86,975 Building $64,838	$2,429,000 (-1%) Land $1,391,600 Building $1,037,400
2024	$15,804.00 (+1.82%)
2023	$15,522.00 (+27.66%)	$180,826 (+40.7%) Land $93,237 Building $87,589	$2,698,900 (+42.8%) Land $1,391,600 Building $1,307,300
2022	$12,159.00	$128,520 Land $58,208 Building $70,312	$1,890,000 Land $856,000 Building $1,034,000

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
Nearest Special Flood Hazard Area	Zone AE, within 500 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 31 policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	31 in force
Nearby Flood Claims	5 (2013)
Claims Outside the SFHA	2 of 5
Most Recent Claim	Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 5 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	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 640 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

May also be available: AT&T.

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