321 Sumner St, Longmont, CO 80501 Property Records

Boulder County property record for 321 Sumner St, Longmont, CO 80501

Property Summary

Property Type	Single Family Home
Details	3 bd · 1.5 ba · 1,096 sqft · built 1946
Lot Size	0.148 acres (6,466 sqft)
Owner	Individual Name on Record
Last Sale	$556,000 (Aug 2023)
Tax Bill	$3,831 (2025)
Deeds & Mortgages	Aug 2023 Sale Jul 2021 Mortgage + 4 more
Flood Zone	Zone X (minimal risk)
APN	`1315-04-1-26-017`

Property Details

APN / Parcel Number

Primary APN	`1315-04-1-26-017`
Alternative APNs	`R0042130` `0042130`

Interior

Bedrooms	3 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,096 sqft Living Area
1st Floor Area	1,096 sqft
Interior Walls	Plaster

Exterior

Year Built	Built 1946
Effective Year Built	Effective 1996
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	6,466 sqft (0.148 acres)
Garage Type	Detached
Garage Area	252 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Porch Area	104 sqft
Patio Area	168 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0042130
Street Address	321 SUMNER ST
City	LONGMONT
State	CO
Zip	80501-4830
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOTS 33-34 BLK 2 CAPITOL HILL
Legal Range	69
Legal Township	2N
Legal Section	04
Legal Subdivision	CAPITOL HILL - LG
Legal Block	2
Legal Lot Number	33
Jurisdiction	BOULDER CO
Township / Civil Division	LONGMONT
Census Block Group	4
Census Block	4007
Census Tract	13302

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	321 SUMNER ST, LONGMONT, CO 80501-4830
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Aug 28, 2023	Warranty Deed, Transfer 8Z TITLE
Jul 8, 2021	Deed of Trust, Mortgage · Conventional Mortgage SYNERGY ONE LENDING
May 27, 2020	Deed of Trust, Mortgage · Conventional Mortgage MR COOPER
May 9, 2018	Deed of Trust, Mortgage · Conventional Mortgage CITYWIDE HMS LNS
Nov 1, 2017	Warranty Deed, Transfer · Construction Mortgage MARSH BARRY B TRUST (PT)
Mar 9, 2017	Warranty Deed, Transfer HERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 28, 2023 · Amount on Record
Deed Sale	Aug 28, 2023 · Amount on Record
Prior Sale	Nov 1, 2017 · Amount on Record
Deed Document Number	20234019747
Prior Transfer Date	Mar 31, 1997
Prior Transfer Doc	0001687044
Record Updated	Oct 29, 2026

August 2023: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Aug 28, 2023
Property Address	321 SUMNER ST, LONGMONT, CO 80501-4830
Document Number	0004019747
Instrument Date	Aug 28, 2023
Instrument	4019747
Transaction Type	Transfer
Record Updated	Sep 27, 2023
Title Company	8Z TITLE

Transaction

Amount	Amount Recorded
Tax	$55.60
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	321 SUMNER ST, LONGMONT, CO 80501-4830

July 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	321 SUMNER ST, LONGMONT, CO 80501-4830
Transaction Type	Mortgage
Record Updated	Jan 17, 2022
Title Company	CANTON TITLE, CANYON TITLE

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003898295
Date	Jul 8, 2021
Instrument	3898295

Lender

Name	SYNERGY ONE LENDING
Type	Mortgage Company
Address	SAN DIEGO, CA 92108

Agreement

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

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	321 SUMNER ST, LONGMONT, CO 80501-4830
Document Number	0003788459
Instrument Date	May 27, 2020
Transaction Type	Mortgage
Record Updated	Jul 20, 2020
Title Company	NOT AVAILABLE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	321 SUMNER ST LONGMONT CO 805014830, LONGMONT, CO 80501-4830

Mortgage

Document Number	0003788459
Date	Jun 3, 2020
Instrument	3788459

Lender

Name	MR COOPER
Address	COPPELL, TX 75019

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jun 2, 2050

May 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	321 SUMNER ST, LONGMONT, CO 80501-4830
Document Number	0003655359
Instrument Date	May 9, 2018
Transaction Type	Mortgage
Record Updated	May 23, 2018
Title Company	LAND TITLE GUARANTEE

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	321 SUMNER ST LONGMONT CO 805014830, LONGMONT, CO 80501-4830

Mortgage

Document Number	0003655359
Date	May 14, 2018
Instrument	3655359

Lender

Name	CITYWIDE HMS LNS
Type	Funding / Finance Company
Address	SANDY, UT 84070

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	May 13, 2048

November 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Nov 1, 2017
Property Address	321 SUMNER ST, LONGMONT, CO 80501-4830
Document Number	0003623519
Instrument Date	Oct 31, 2017
Instrument	3623519
Transaction Type	Transfer
Record Updated	Jan 22, 2018
Title Company	LAND TITLE GUARANTEE

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$37.50
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	321 SUMNER ST LONGMONT CO 805014830, LONGMONT, CO 80501-4830

Mortgage

Document Number	3629845
Date	Nov 1, 2017
Instrument	3629845

Lender

Name	MARSH BARRY B TRUST (PT)
Address	3691 S LEE POINT RD, SUTTONS BAY, MI 49682-9520

Agreement

Type	Construction Mortgage
Amount	Amount Recorded
Term	12 Months
Due	Oct 31, 2018

Interest

Rate	3%

March 2017: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Mar 9, 2017
Property Address	321 SUMNER ST, LONGMONT, CO 80501-4830
Document Number	0003579384
Instrument Date	Mar 8, 2017
Instrument	3579384
Transaction Type	Transfer
Record Updated	Mar 23, 2017
Title Company	HERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Transaction

Amount	Amount Recorded
Tax	$36.80
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	321 SUMNER ST LONGMONT CO 805014830, LONGMONT, CO 80501-4830

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of September 18, 2026

Property Jurisdictions

Type	Name
State	Colorado
County	Boulder County
Municipality	Longmont City
Unified School District	St. Vrain Valley School District RE 1J (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$35,741 (-2.08%) Land $6,324 Building $29,417	$584,000 (-) Land $151,400 Building $432,600
2025	$3,831.00 (+12.05%)	$36,501 (-7.43%) Land $9,463 Building $27,038	$584,000 (-0.76%) Land $151,400 Building $432,600
2024	$3,419.00 (+1.39%)
2023	$3,372.00 (+11.29%)	$39,430 (+28.76%) Land $10,586 Building $28,844	$588,500 (+33.57%) Land $158,000 Building $430,500
2022	$3,030.00	$30,622 Land $7,791 Building $22,831	$440,600 Land $112,100 Building $328,500

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
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	1 in force

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 98% of the US · lower than 99.2% 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 LONGMONT serves 104,178 people · EPA ID CO0107485
Water Source	Surface water
Last State Inspection	Sep 2025
Lead	2 ppb (2023–2025) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 252 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
NextLight Fiber	10,000 / 10,000
Xfinity Cable	1,200 / 35

May also be available: Verizon.

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