1. Home
  2. Colorado
  3. Boulder County
  4. Boulder
  5. Sumac Ave

1800 Sumac Ave, Boulder, CO 80304 Property Records

Boulder County property record for 1800 Sumac Ave, Boulder, CO 80304

Property Summary

Property TypeSingle Family Home
Details4 bd · 3.5 ba · 3,991 sqft · built 1950
Lot Size0.472 acres (20,578 sqft)
Owner2 Individual Names on File
Last Sale$220,000 (Oct 1995)
Tax Bill$10,816 (2025)
Deeds & MortgagesAug 2021 Transfer
Flood ZoneZone X (moderate risk)
APN1463-18-3-24-020

Property Details

APN / Parcel Number

Primary APN1463-18-3-24-020
Alternative APNs
  • R0032913
  • 0032913

Interior

Bedrooms4 Beds
Full Baths3.5 Baths
Half Baths2 Half Baths
Total Rooms11 Rooms
Stories2 Stories
Building Area3,991 sqft Living Area
Gross Area4,311 sqft
1st Floor Area2,411 sqft
Upper Floors Area1,580 sqft
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1950
Effective Year BuiltEffective 1990
Architectural StyleA-Frame
Exterior MaterialWood Shingle
Construction TypeFrame
Roof MaterialAsphalt
Lot Area20,578 sqft (0.472 acres)
Garage TypeAttached
Garage Area320 sqft
Parking Spaces1 Parking Space

Exterior Amenities

PorchPorch
Porch Area63 sqft
Deck Area283 sqft
Patio Area516 sqft

Utilities, Heating & Cooling

Heating SystemHot Water

Location & Zoning

Account NumberR0032913
Street Address1800 SUMAC AVE
CityBOULDER
StateCO
Zip80304-0816
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionLOTS 6 & 16 BLK 11 MOORES & 30 FT VAC RIVERSIDE AV
Legal Range70
Legal Township1N
Legal Section18
Legal SubdivisionMOORES & REPLAT LOT 15 BLK 30 - BO
Legal Block11
Legal Lot Number6
JurisdictionBOULDER CO
Township / Civil DivisionBOULDER
Census Block Group3
Census Block3000
Census Tract12105

Owner

1800 Sumac Ave is owned and occupied by two individuals who acquired it in April 1999.

Source: Boulder County records, as of September 18, 2026

Owner of Record2 Individual Names on File
Mailing Address1800 SUMAC AVE, BOULDER, CO 80304-0816
OccupancyOwner Occupied
Owner TypeIndividual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleOct 24, 1995 · Amount on File
Deed SaleOct 24, 1995 · Amount on File
Prior SaleJun 19, 1995 · Amount on File
Deed Document Number19951557083
Last Transfer DateApr 14, 1999
Transfer Doc0001932472
Record UpdatedOct 29, 2026

August 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionBOULDER CO
Recording DateAug 9, 2021
Property Address1800 SUMAC AVE, BOULDER, CO 80304-0816
Document Number0003905631
Instrument DateJul 30, 2021
Instrument3905631
Transaction TypeTransfer
Record UpdatedAug 18, 2021

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
Address1800 SUMAC AVE, BOULDER, CO 80304-0816

Tax Assessment & Valuation

The 2025 property tax bill for 1800 Sumac Ave was $10,816.

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$118,667 (+4.6%) Land $75,943 Building $42,724$1,815,100 (-) Land $1,186,800 Building $628,300
2025$10,816.00$113,444 Land $74,175 Building $39,269$1,815,100 Land $1,186,800 Building $628,300
2023$10,567.00 (+18.9%)$126,054 (+31.72%) Land $76,199 Building $49,855$1,881,400 (+36.63%) Land $1,137,300 Building $744,100
2022$8,887.00$95,702 Land $61,466 Building $34,236$1,377,000 Land $884,400 Building $492,600

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

FEMA maps place 1800 Sumac Ave in Zone X, an area of moderate flood risk, within 100 ft of a high-risk flood zone.

Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
moderate risk
500-Year FloodplainYes
0.2% annual chance
Nearest Special Flood Hazard AreaZone AE, within 100 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on File
median of 32 policies
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies32 in force
Nearby Flood Claims26 (2005–2015)
Claims Outside the SFHA10 of 26
Most Recent ClaimMay 2015 · Severe Storms, Tornadoes, Flooding, Landslides, And Mudslides
Claims by Event
  • Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 23 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

Wildfire risk around 1800 Sumac Ave is low, with a 0.07% annual chance of wildfire.

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

Wildfire RiskLow
lower than 62% of the US · lower than 79% of Colorado
Wildfire Likelihood0.07% 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 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 Sumac Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures