4851 Maxwell Ave, Longmont, CO 80503 Property Records

Boulder County property record for 4851 Maxwell Ave, Longmont, CO 80503

Property Summary

Property Type	Single Family Home
Details	4 bd · 3 ba · 3,131 sqft · built 2018
Lot Size	0.13 acres (5,661 sqft)
Owner	2 Individual Names on Record
Last Sale	$629,500 (Jun 2020)
Tax Bill	$5,992 (2025)
Deeds & Mortgages	Jun 2020 Sale & Mortgage Nov 2018 Transfer + 2 more
Flood Zone	Zone X (minimal risk)
APN	`1315-18-3-21-001`

Property Details

APN / Parcel Number

Primary APN	`1315-18-3-21-001`
Alternative APN	`R0608711`

Interior

Bedrooms	4 Beds
Full Baths	3 Baths
Total Rooms	7 Rooms
Stories	1 Story
Building Area	3,131 sqft Living Area
Gross Area	3,952 sqft
1st Floor Area	1,862 sqft
Basement Area	1,497 sqft
Finished Basement	1,269 sqft
Unfinished Basement	228 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 2018
Effective Year Built	Effective 2018
Architectural Style	Ranch
Exterior Material	Composition/Composite
Construction Type	Frame
Roof Material	Asphalt
Lot Area	5,661 sqft (0.13 acres)
Garage Type	Attached
Garage Area	593 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Porch Area	168 sqft
Patio Area	121 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0608711
Street Address	4851 MAXWELL AVE
City	LONGMONT
State	CO
Zip	80503-2712
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 1 BLK 4 CLOVER BASIN RANCH
Legal Range	69
Legal Township	2N
Legal Section	18
Legal Subdivision	CLOVER BASIN RANCH
Legal Block	4
Legal Lot Number	1
Jurisdiction	BOULDER CO
Township / Civil Division	LONGMONT
Census Block Group	1
Census Block	1005
Census Tract	13214

Owner

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

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	2 Individual Names on Record
Mailing Address	4851 MAXWELL AVE, LONGMONT, CO 80503-2712
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jun 29, 2020	Warranty Deed, Transfer · Conventional Mortgage JPMORGAN CHASE BANK NA
Nov 1, 2018	Quit Claim Deed, Transfer Quitclaim
Aug 1, 2018	Grant Deed, Transfer · Conventional Mortgage ELEVATIONS CU
Feb 2, 2018	Grant Deed, Construction Loan · Line of Credit COBIZ BK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jun 29, 2020 · Amount on Record
Deed Sale	Jun 29, 2020 · Amount on Record
Prior Sale	Aug 1, 2018 · Amount on Record
Deed Document Number	20203794669
Record Updated	Oct 29, 2026

June 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	BOULDER CO
Recording Date	Jun 29, 2020
Property Address	4851 MAXWELL AVE, LONGMONT, CO 80503-2712
Document Number	0003794669
Instrument Date	Jun 24, 2020
Instrument	3794669
Transaction Type	Transfer
Record Updated	Mar 31, 2022
Title Company	MERIDIAN TITLE & ESCROW LLC

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$62.95
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	11830 N 75TH ST # ST480, 11830, HYGIENE, CO 80533-9900

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4851 MAXWELL AVE, LONGMONT, CO 80503-2712

Mortgage

Document Number	0003794670
Date	Jun 29, 2020
Instrument	3794670

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jul 1, 2050

November 2018: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOULDER CO
Recording Date	Nov 1, 2018
Property Address	4851 MAXWELL AVE, LONGMONT, CO 80503-2712
Document Number	0003684020
Instrument Date	Nov 1, 2018
Instrument	3684020
Transaction Type	Transfer
Record Updated	Nov 12, 2018

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	11830 N 75TH ST #480 HYGIENE CO 805337421, 480, HYGIENE, CO 80533-7421

August 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	Aug 1, 2018
Property Address	4851 MAXWELL AVE, LONGMONT, CO 80503-2712
Document Number	0003668932
Instrument Date	Jul 31, 2018
Instrument	3668932
Transaction Type	Transfer
Record Updated	Aug 17, 2018
Title Company	GOLDEN DOG TITLE AND TRUST

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$48.99
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	5027 WILLIAM PL LONGMONT CO 805036608, LONGMONT, CO 80503-6608

Mortgage

Document Number	3668933
Date	Aug 1, 2018
Instrument	3668933

Lender

Name	ELEVATIONS CU
Address	BROOMFIELD, CO 80021

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jul 31, 2048

February 2018: Grant Deed, Construction Loan

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	Feb 2, 2018
Property Address	4851 MAXWELL AVE, LONGMONT, CO 80503-2712
Document Number	0003639021
Instrument Date	Jan 31, 2018
Instrument	3639021
Transaction Type	Construction Loan
Record Updated	Feb 26, 2018
Title Company	GOLDEN DOG TITLE AND TRUST

Transaction

Amount	Amount Recorded
Tax	$119.89
Amount Accuracy	Confirmed
Additional	Multiple Parcels

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Company
Address	2727 BRYANT ST #200 DENVER CO 802114152, 200, DENVER, CO 80211-4152
Investor	Possibly a Property Investor

Mortgage

Document Number	3639222
Date	Feb 2, 2018
Instrument	3639222

Lender

Name	COBIZ BK
Type	Bank
Address	1401 LAWRENCE ST # 1200, DENVER, CO 80202-2521

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	24 Months
Due	Feb 1, 2020

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	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		$57,344 (+0.46%) Land $5,365 Building $51,979	$913,300 (-) Land $148,900 Building $764,400
2025	$5,992.00 (+10.27%)	$57,081 (-6.86%) Land $9,306 Building $47,775	$913,300 (-0.15%) Land $148,900 Building $764,400
2023	$5,434.00 (+16.76%)	$61,285 (+30.31%) Land $9,856 Building $51,429	$914,700 (+35.17%) Land $147,100 Building $767,600
2022	$4,654.00	$47,031 Land $7,499 Building $39,532	$676,700 Land $107,900 Building $568,800

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	5 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 62% of the US · lower than 78% of Colorado
Wildfire Likelihood	0.06% 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 648 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
CenturyLink DSL · Fiber in parts of the area	140 / 20

May also be available: Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Maxwell Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures