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403 Highland Ave, Boulder, CO 80302 Property Records

Boulder County property record for 403 Highland Ave, Boulder, CO 80302

Property Summary

Property TypeSingle Family Home
Details4 bd · 3.5 ba · 4,519 sqft · built 1906
Lot Size0.32 acres (13,958 sqft)
OwnerCompany Name on File
Last Sale$2,290,000 (Dec 2010)
Tax Bill$31,131 (2025)
Deeds & MortgagesAug 2019 Sale
Flood ZoneZone X (minimal risk)
APN1461-25-4-07-006

Property Details

APN / Parcel Number

Primary APN1461-25-4-07-006
Alternative APNs
  • R0001901
  • 0001901

Interior

Bedrooms4 Beds
Full Baths3.5 Baths
Half Baths1 Half Bath
Total Rooms13 Rooms
Stories2 Stories
Building Area4,519 sqft Living Area
Gross Area5,471 sqft
1st Floor Area1,582 sqft
Upper Floors Area1,414 sqft
Basement Area1,356 sqft
Finished Basement1,015 sqft
Unfinished Basement341 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1906
Effective Year BuiltEffective 2000
Architectural StyleMulti-Level
Exterior MaterialCombination
Construction TypeMasonry / Concrete Block
Roof MaterialAsphalt
Lot Area13,958 sqft (0.32 acres)
Garage TypeAttached
Garage Area611 sqft

Exterior Amenities

PorchPorch
Porch Area345 sqft
Deck Area122 sqft
Total Buildings2 Buildings

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemHot Water

Location & Zoning

Account NumberR0001901
Street Address403 HIGHLAND AVE
CityBOULDER
StateCO
Zip80302-4717
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOTS 31-34 INC BLK 5 MAPLETON
Legal Range71
Legal Township1N
Legal Section25
Legal SubdivisionMAPLETON - BO
Legal Block5
Legal Lot Number31
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group4
Census Block4013
Census Tract12101

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 RecordCompany Name on File
Mailing Address1209 N ORANGE ST, WILMINGTON, DE 19801-1120
Owner TypeCompany

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleDec 13, 2010 · Amount on File
Deed SaleDec 13, 2010 · Amount on File
Prior SaleFeb 1, 2000 · Amount on File
Deed Document Number20103119518
Record UpdatedOct 29, 2026

August 2019: Grant Deed, Transfer

Document TypeGrant Deed
JurisdictionBOULDER CO
Recording DateAug 13, 2019
Property Address403 HIGHLAND AVE, BOULDER, CO 80302-4717
Document Number0003729896
Instrument DateAug 13, 2019
Instrument3729896
Transaction TypeTransfer
Record UpdatedAug 22, 2019
Title CompanyNOT AVAILABLE

Transaction

Tax$0.00
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipCompany
Address1209 N ORANGE ST WILMINGTON DE 198011120, WILMINGTON, DE 19801-1120

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of September 18, 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$350,472 (+7.34%) Land $153,245 Building $197,227$5,224,000 (-) Land $2,323,600 Building $2,900,400
2025$31,131.00 (+1.92%)$326,500 (-7.05%) Land $145,225 Building $181,275$5,224,000 (-0.35%) Land $2,323,600 Building $2,900,400
2024$30,545.00 (+1.77%)
2023$30,015.00 (+3.7%)$351,254 (+12.69%) Land $154,167 Building $197,087$5,242,600 (+16.89%) Land $2,301,000 Building $2,941,600
2022$28,945.00$311,701 Land $112,347 Building $199,354$4,484,900 Land $1,616,500 Building $2,868,400

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
Nearest Special Flood Hazard AreaZone A, within 500 ft
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies15 units insured
incl. 9 condo units
Nearby Flood Claims2 (2013)
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 RiskHigh
above 82% of the US · above 85% of Colorado
Wildfire Likelihood0.8% annual chance
ExposureDirect
burnable vegetation

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 684 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Ayva Networks
Fixed Wireless		2,500 / 2,500
CenturyLink
Fiber · DSL in parts of the area		2,000 / 1,000
Xfinity
Cable		2,000 / 250
LiveWireNet
Fixed Wireless		250 / 100
T-Mobile
Fixed Wireless		100 / 20
AT&T
Fixed Wireless		100 / 20

May also be available: Verizon.

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