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135 31st St, Boulder, CO 80305 Property Records

Boulder County property record for 135 31st St, Boulder, CO 80305

Property Summary

Property TypeSingle Family Home
Details3 bd · 1.75 ba · 1,296 sqft · built 1955
Lot Size0.186 acres (8,113 sqft)
Owner2 Individual Names on File
Tax Bill$5,787 (2025)
Deeds & MortgagesFeb 2021 Mortgage
Apr 2020 Line of Credit
+ 2 more
Flood ZoneZone X (minimal risk)
APN1577-05-3-18-022

Property Details

APN / Parcel Number

Primary APN1577-05-3-18-022
Alternative APNs
  • R0004169
  • 0004169

Interior

Bedrooms3 Beds
Full Baths1.75 Baths
Half Baths1 Half Bath
Total Rooms7 Rooms
Stories1 Story
Building Area1,296 sqft Living Area
1st Floor Area1,296 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1955
Effective Year BuiltEffective 2002
Architectural StyleRanch
Exterior MaterialBrick Veneer
Construction TypeMasonry / Concrete Block
Roof MaterialAsphalt
Lot Area8,113 sqft (0.186 acres)

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0004169
Street Address135 31ST ST
CityBOULDER
StateCO
Zip80305
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOT 27 BLK 15 HIGHLAND PARK 3
Legal Range70
Legal Township1S
Legal Section05
Legal SubdivisionHIGHLAND PARK 3 - BO
Legal Block15
Legal Lot Number27
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group2
Census Block2011
Census Tract12507

Owner

Source: Boulder County assessment roll, as of June 15, 2026

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

Owner of Record2 Individual Names on File
Mailing Address135 S 31ST ST, BOULDER, CO 80305-3408
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Feb 22, 2021Deed of Trust, Mortgage · Conventional Mortgage
FREEDOM MORTGAGE CORP
Apr 11, 2020Deed of Trust, Mortgage · Line of Credit
ELEVATIONS CU
Apr 6, 2020Intrafamily Transfer, Transfer · Conventional Mortgage
FREEDOM MORTGAGE CORP
Feb 3, 2020Deed of Trust, Mortgage · Line of Credit
ELEVATIONS CU

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleDec 23, 2010
Deed SaleDec 23, 2010
Prior SaleJun 6, 2005 · Amount on Record
Deed Document Number20103122349
Last Transfer DateMar 24, 2020
Transfer Doc0003776137
Record UpdatedSep 20, 2026

February 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address135 31ST ST, BOULDER, CO 80305
Transaction TypeMortgage
Record UpdatedMar 4, 2021
Title CompanyINSPIRE CLOSING SERVICES LLC

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0003860717
DateFeb 22, 2021
Instrument3860717
Lender
NameFREEDOM MORTGAGE CORP
TypeSubprime Lender
AddressMOUNT LAUREL, NJ 08054
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueMar 1, 2051

April 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address135 31ST ST, BOULDER, CO 80305
Document Number0003777912
Instrument DateApr 11, 2020
Transaction TypeMortgage
Record UpdatedJun 8, 2020
Title CompanyNOT AVAILABLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address135 S 31ST ST BOULDER CO 803053408, BOULDER, CO 80305-3408

Mortgage

Document Number0003777912
DateApr 16, 2020
Instrument3777912
Lender
NameELEVATIONS CU
AddressBOULDER, CO 80301
Agreement
TypeLine of Credit
AmountAmount Recorded
Term240 Months
DueApr 15, 2040
Interest
Rate TypeAdjustable Rate

April 2020: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionBOULDER CO
Recording DateApr 6, 2020
Property Address135 31ST ST, BOULDER, CO 80305
Document Number0003776137
Instrument DateMar 24, 2020
Instrument3776137
Transaction TypeTransfer
Record UpdatedMar 31, 2022

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants
Address135 S 31ST ST, BOULDER, CO 80305-3408

Mortgage

Document Number0003776138
DateApr 6, 2020
Instrument3776138
Lender
NameFREEDOM MORTGAGE CORP
TypeSubprime Lender
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueApr 1, 2050

February 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionBOULDER CO
Property Address135 31ST ST, BOULDER, CO 80305
Document Number0003764955
Instrument DateFeb 3, 2020
Transaction TypeMortgage
Record UpdatedFeb 24, 2020
Title CompanyNOT AVAILABLE

Transferred To (Grantee/Buyer)

NameVerified Name
Address135 S 31ST ST BOULDER CO 803053408, BOULDER, CO 80305-3408

Mortgage

Document Number0003764955
DateFeb 7, 2020
Instrument3764955
Lender
NameELEVATIONS CU
AddressBOULDER, CO 80301
Agreement
TypeLine of Credit
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of June 15, 2026

Property Jurisdictions

TypeName
StateColorado
CountyBoulder County
MunicipalityBoulder City
Unified School DistrictBoulder Valley School District RE-2 (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$66,041 (+8.8%) Land $33,381 Building $32,660$971,200 (-) Land $490,900 Building $480,300
2025$5,787.00 (-2.18%)$60,700 (+0.03%) Land $30,681 Building $30,019$971,200 (+7.23%) Land $490,900 Building $480,300
2023$5,916.00 (+8.19%)$60,682 (+24.57%) Land $36,093 Building $24,589$905,700 (+29.22%) Land $538,700 Building $367,000
2022$5,468.00$48,712 Land $27,334 Building $21,378$700,900 Land $393,300 Building $307,600

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 Policies9 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 RiskModerate
above 59% of the US · above 44% of Colorado
Wildfire Likelihood0.2% 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 BOULDER
serves 166,080 people · EPA ID CO0107152
Water SourceSurface water
Last State InspectionSep 2024
Lead2 ppb (2023–2025)
action level 15 ppb

Violations Reported to EPA

Water QualityHaloacetic acids
resolved · Jul 2017
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting1
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 294 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Ayva Networks
Fixed Wireless		2,500 / 2,500
CenturyLink
Fiber		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

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