644 Planet Pl, Thornton (Denver), CO 80260 Property Records

Adams County property record for 644 Planet Pl, Thornton, CO 80260

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 1,276 sqft · built 1964
Lot Size0.219 acres (9,583 sqft)
OwnerOwner Name on Record
Tax Bill$983 (2025)
Flood ZoneZone X (minimal risk)
APNR0058299

Property Details

APN / Parcel Number

Primary APNR0058299
Alternative APNs
  • 0171927207022
  • 171927207022

Interior

Bedrooms3 Beds
Full Baths2 Baths
Plumbing Fixtures8 Plumbing Fixtures
Total Rooms6 Rooms
Stories1 Story
Building Area1,276 sqft Living Area
1st Floor Area1,276 sqft
Basement Area1,276 sqft
Interior WallsWallboard/Drywall
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1964
Architectural StyleRanch
Exterior MaterialBrick/Stone
Construction TypeFrame
Roof TypeGable
Roof MaterialComposition Shingle
Lot Area9,583 sqft (0.219 acres)
Lot Dimensions119 ft deep x 81 ft wide
Garage TypeAttached
Garage Area528 sqft
Parking Spaces2 Parking Spaces
PorchPorch
Porch Area292 sqft

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemForced Air

Location & Zoning

Account NumberR0058299
Old Parcel Number171927207022
Street Address644 PLANET PL
CityTHORNTON
StateCO
Zip80260-4868
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionSUB:NORTH STAR HILLS FIRST FILING BLK:8 DESC: LOT 7 TOG WITH ELY 5 FT LOT 6
Legal Range68W
Legal Township02S
Legal Section27
Legal QuarterNW
Legal SubdivisionNORTH STAR HILLS FIRST FILING
Legal Block8
Legal Lot Number6-7
JurisdictionADAMS CO
Township / Civil DivisionWEST ADAMS
Census Block Group1
Census Block1002
Census Tract9307

Owner

Source: Adams County records, as of February 9, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordOwner Name on Record
Mailing Address644 PLANET PL, THORNTON, CO 80260-4868
OccupancyOwner Occupied

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Prior SaleDec 7, 2006 · Amount on Record
Last Transfer DateMay 24, 2007
Transfer Doc0000051234
Record UpdatedJun 8, 2026

Tax Assessment & Valuation

Source: Adams County assessment roll, as of August 25, 2025

Property Jurisdictions

TypeName
StateColorado
CountyAdams County
MunicipalityThornton City
Unified School DistrictAdams 12 Five Star Schools (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$983.00 (-72.57%)$20,690 (-34.09%) Land $4,320 Building $16,370$431,000 (-7.11%) Land $90,000 Building $341,000
2023$3,584.00 (+2.99%)$31,390 (+3.97%) Land $5,750 Building $25,640$464,000 (+6.83%) Land $85,000 Building $379,000
2022$3,480.00$30,190 Land $11,820 Building $18,370$434,341 Land $170,000 Building $264,341

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective October 2, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskNot 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 SystemCITY OF THORNTON
serves 226,465 people · EPA ID CO0101150
Water SourceSurface water
Last State InspectionJul 2024
Lead2 ppb (2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting3
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 396 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable
2,000 / 250
CenturyLink
DSL · Fiber in parts of the area
140 / 20

May also be available: Aerux Broadband, Verizon.

Nearby Properties on Planet Pl

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