2370 23rd St, Boulder, CO 80304 Property Records

Boulder County property record for 2370 23rd St, Boulder, CO 80304

Property Summary

Property Type	Single Family Home
Details	4 bd · 3.25 ba · 2,242 sqft · built 1978
Lot Size	0.053 acres (2,327 sqft)
Owner	Individual Name on Record
Last Sale	$1,142,000 (Feb 2021)
Tax Bill	$9,642 (2025)
Deeds & Mortgages	Jul 2021 Mortgage Feb 2021 Sale & Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`1463-30-6-27-002`

Property Details

APN / Parcel Number

Primary APN	`1463-30-6-27-002`
Alternative APNs	`R0080782` `0080782`

Interior

Bedrooms	4 Beds
Full Baths	3.25 Baths
Half Baths	2 Half Baths
Total Rooms	7 Rooms
Stories	2 Stories
Building Area	2,242 sqft Living Area
1st Floor Area	802 sqft
Upper Floors Area	720 sqft
Basement Area	720 sqft
Finished Basement	720 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1978
Effective Year Built	Effective 1995
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	2,327 sqft (0.053 acres)
Garage Type	Detached
Garage Area	480 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Porch Area	36 sqft
Deck Area	120 sqft

Utilities, Heating & Cooling

Heating System	Hot Water

Location & Zoning

Account Number	R0080782
Street Address	2370 23RD ST
City	BOULDER
State	CO
Zip	80304-3702
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT B TWENTY-THIRD STREET SPLIT SEE ID 93136
Legal Range	70
Legal Township	1N
Legal Section	30
Legal Subdivision	TWENTY-THIRD STREET - BO
Legal Block	2
Legal Lot Number	B
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	2
Census Block	2009
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	Individual Name on Record
Mailing Address	2370 23RD ST, BOULDER, CO 80304-3702
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jul 22, 2021	Deed of Trust, Mortgage GST EXEMPT LIFETIME TRUST
Feb 23, 2021	Special Warranty Deed, Transfer · Conventional Mortgage FIRSTBANK
Jul 17, 2018	Trustee's Deed, Construction Loan · Construction Mortgage FIRSTBANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Feb 23, 2021 · Amount on Record
Deed Sale	Feb 23, 2021 · Amount on Record
Prior Sale	Nov 20, 2002 · Amount on Record
Deed Document Number	20213861798
Prior Transfer Date	Mar 9, 1998
Prior Transfer Doc	0001781182
Record Updated	Oct 29, 2026

July 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	2370 23RD ST, BOULDER, CO 80304-3702
Transaction Type	Mortgage
Record Updated	Mar 31, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2370 23RD ST, BOULDER, CO 80304-3702

Mortgage

Document Number	0003901724
Date	Jul 22, 2021
Instrument	3901724

Lender

Name	GST EXEMPT LIFETIME TRUST
Type	Non-Lending Institution
Address	MANASQUAN, NJ 08736

Agreement

Amount	Amount Recorded
Term	31 Months
Due	Feb 1, 2024

Interest

Rate Type	Fixed Rate
Rate	3.25%

February 2021: Special Warranty Deed, Transfer

Document Type	Special Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Feb 23, 2021
Property Address	2370 23RD ST, BOULDER, CO 80304-3702
Document Number	0003861798
Instrument Date	Feb 19, 2021
Instrument	3861798
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	FIDELITY NATIONAL TITLE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$114.20
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2370 23RD ST, BOULDER, CO 80304-3702

Mortgage

Document Number	0003861799
Date	Feb 23, 2021
Instrument	3861799

Lender

Name	FIRSTBANK
Type	Bank

Agreement

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

July 2018: Trustee's Deed, Construction Loan

Document Type	Trustee's Deed
Jurisdiction	BOULDER CO
Recording Date	Jul 17, 2018
Property Address	2370 23RD ST, BOULDER, CO 80304-3702
Instrument Date	Jul 16, 2018
Instrument	3666292
Transaction Type	Construction Loan
Record Updated	Jul 24, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	2490 GRAPE AVE BOULDER CO 803042832, BOULDER, CO 80304-2832

Mortgage

Document Number	0003666292
Date	Jul 17, 2018
Instrument	3666292

Lender

Name	FIRSTBANK
Type	Bank
Address	LAKEWOOD, CO 80215

Agreement

Type	Construction Mortgage
Amount	Amount Recorded
Term	12 Months
Due	Jul 16, 2019

Interest

Rate Type	Adjustable Rate

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		$105,271 (+4.09%) Land $37,332 Building $67,939	$1,618,100 (-) Land $619,000 Building $999,100
2025	$9,642.00 (+16.63%)	$101,132 (+1.73%) Land $38,688 Building $62,444	$1,618,100 (+9.05%) Land $619,000 Building $999,100
2023	$8,267.00 (+12.17%)	$99,415 (+25.26%) Land $40,743 Building $58,672	$1,483,800 (+29.93%) Land $608,100 Building $875,700
2022	$7,370.00	$79,369 Land $31,796 Building $47,573	$1,142,000 Land $457,500 Building $684,500

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

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 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	Low lower than 99.1% of the US · lower than 99.6% of Colorado
Wildfire Likelihood	Under 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 663 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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