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2305 Topaz Dr, Boulder, CO 80304 Property Records

Boulder County property record for 2305 Topaz Dr, Boulder, CO 80304

Property Summary

Property TypeSingle Family Home
Details3 bd · 2 ba · 2,232 sqft · built 1957
Lot Size0.789 acres (34,350 sqft)
OwnerIndividual Name on Record
Tax Bill$11,110 (2025)
Deeds & MortgagesMar 2023 Transfer
Flood ZoneZone X (minimal risk)
APN1463-18-4-06-001

Property Details

APN / Parcel Number

Primary APN1463-18-4-06-001
Alternative APNs
  • R0033481
  • 0033481

Interior

Bedrooms3 Beds
Full Baths2 Baths
Total Rooms6 Rooms
Stories2 Stories
Building Area2,232 sqft Living Area
Gross Area2,712 sqft
1st Floor Area1,602 sqft
Upper Floors Area630 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1957
Effective Year BuiltEffective 1968
Exterior MaterialBrick Veneer
Construction TypeMasonry / Concrete Block
Lot Area34,350 sqft (0.789 acres)
Garage TypeAttached
Garage Area672 sqft
Parking Spaces2 Parking Spaces
PorchEnclosed Porch
Porch Area168 sqft
Patio Area216 sqft

Utilities, Heating & Cooling

Heating SystemForced Air with A/C

Location & Zoning

Account NumberR0033481
Street Address2305 TOPAZ DR
CityBOULDER
StateCO
Zip80304-0928
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeRR
Legal DescriptionLOT 1 BLK 5 GITHENS ACRES
Legal Range70
Legal Township1N
Legal Section18
Legal SubdivisionGITHENS ACRES - BOV
Legal Block5
Legal Lot Number1
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group2
Census Block2002
Census Tract12103

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 RecordIndividual Name on Record
Mailing Address2305 TOPAZ DR, BOULDER, CO 80304-0928
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleNov 16, 1982
Deed SaleNov 16, 1982
Deed Document Number1982520253
Last Transfer DateMar 17, 2023
Transfer Doc0004001842
Record UpdatedOct 29, 2026

March 2023: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionBOULDER CO
Recording DateMar 28, 2023
Property Address2305 TOPAZ DR, BOULDER, CO 80304-0928
Document Number0004001842
Instrument DateMar 17, 2023
Instrument4001842
Transaction TypeTransfer
Record UpdatedApr 5, 2023

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address2305 TOPAZ DR, BOULDER, CO 80304-0928

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2026$123,073 (+4.75%) Land $99,511 Building $23,562$1,879,900 (-) Land $1,533,400 Building $346,500
2025$11,110.00 (+7.87%)$117,494 (-5.15%) Land $95,838 Building $21,656$1,879,900 (+1.68%) Land $1,533,400 Building $346,500
2023$10,299.00 (+22.72%)$123,877 (+32.97%) Land $98,450 Building $25,427$1,848,900 (+37.93%) Land $1,469,400 Building $379,500
2022$8,392.00$93,165 Land $79,411 Building $13,754$1,340,500 Land $1,142,600 Building $197,900

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 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AE, within 100 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 31 policies
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies31 in force
Nearby Flood Claims26 (1995–2014)
Claims Outside the SFHA14 of 26
Most Recent ClaimMay 2014 · other causes
Claims by Event
  • Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 22 claims

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 45% of the US · lower than 71% of Colorado
Wildfire Likelihood0.1% annual chance
ExposureIndirect
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 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 384 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Ayva Networks
Fixed Wireless		2,500 / 2,500
Xfinity
Cable		2,000 / 250
LiveWireNet
Fixed Wireless		250 / 100
CenturyLink
DSL · Fiber in parts of the area		140 / 20
AT&T
Fixed Wireless		100 / 20

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Topaz Dr

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