735 Sumner St, Longmont, CO 80501 Property Records

Boulder County property record for 735 Sumner St, Longmont, CO 80501

Property Summary

Property TypeSingle Family Home
Details2 bd · 1 ba · 704 sqft · built 1930
Lot Size0.154 acres (6,691 sqft)
OwnerCompany Name on Record
Last Sale$164,500 (Jun 2010)
Tax Bill$2,707 (2025)
Flood ZoneZone X (minimal risk)
APN1315-04-1-10-020

Property Details

APN / Parcel Number

Primary APN1315-04-1-10-020
Alternative APNs
  • R0042591
  • 0042591

Interior

Bedrooms2 Beds
Full Baths1 Bath
Total Rooms5 Rooms
Stories1 Story
Building Area704 sqft Living Area
1st Floor Area704 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1930
Effective Year BuiltEffective 1965
Architectural StyleRanch
Exterior MaterialAluminum/Vinyl
Construction TypeFrame
Roof MaterialAsphalt
Lot Area6,691 sqft (0.154 acres)
Garage TypeDetached
Garage Area288 sqft
Parking Spaces1 Parking Space

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0042591
Street Address735 SUMNER ST
CityLONGMONT
StateCO
Zip80501-4834
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOTS 39-40 BLK 9 COLUMBIA HEIGHTS
Legal Range69
Legal Township2N
Legal Section04
Legal SubdivisionCOLUMBIA HEIGHTS - LG
Legal Block9
Legal Lot Number39
JurisdictionBOULDER CO
Township / Civil DivisionLONGMONT
Census Block Group5
Census Block5006
Census Tract13302

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 RecordCompany Name on Record
Mailing Address1064 S WASHINGTON ST, DENVER, CO 80209-4318
Owner TypeCompany
VestingCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJun 3, 2010 · Amount on Record
Deed SaleJun 3, 2010 · Amount on Record
Prior SaleDec 23, 1985 · Amount on Record
Deed Document Number20103078442
Prior Transfer DateNov 20, 2002
Prior Transfer Doc0002361138
Record UpdatedOct 29, 2026

Tax Assessment & Valuation

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

Property Jurisdictions

TypeName
StateColorado
CountyBoulder County
MunicipalityLongmont City
Unified School DistrictSt. Vrain Valley School District RE 1J (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$25,251 (-2.08%) Land $7,666 Building $17,585$412,600 (-) Land $154,000 Building $258,600
2025$2,707.00 (+18.16%)$25,788 (-6.71%) Land $9,625 Building $16,163$412,600 (-) Land $154,000 Building $258,600
2024$2,291.00 (+1.37%)
2023$2,260.00 (+6.05%)$27,644 (+28.35%) Land $10,767 Building $16,877$412,600 (+33.14%) Land $160,700 Building $251,900
2022$2,131.00$21,538 Land $7,923 Building $13,615$309,900 Land $114,000 Building $195,900

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 ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies1 in force
Nearby Flood Claims1 (2013)
Claims Outside the SFHA1 of 1
Most Recent ClaimSep 2013 · Severe Storms, Flooding, Landslides, And Mudslides

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 RiskLow
lower than 99.1% of the US · lower than 99.6% of Colorado
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
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 SystemCITY OF LONGMONT
serves 104,178 people · EPA ID CO0107485
Water SourceSurface water
Last State InspectionSep 2025
Lead2 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 506 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
NextLight
Fiber
10,000 / 10,000
Xfinity
Cable
1,200 / 35
Verizon
Fixed Wireless
300 / 20
Rise Broadband
Fixed Wireless
100 / 20
T-Mobile
Fixed Wireless
100 / 20

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