Boulder County property record for 2025 18th St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,776 sqft · built 1898 |
| Lot Size | 0.117 acres (5,112 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $530,000 (Aug 2012) |
| Tax Bill | $9,165 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 1463-30-3-91-003 |
| Primary APN | 1463-30-3-91-003 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 1,776 sqft Living Area |
| Gross Area | 1,831 sqft |
| 1st Floor Area | 998 sqft |
| Upper Floors Area | 778 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1898 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Multi-Level |
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 5,112 sqft (0.117 acres) |
| Garage Area | 738 sqft |
| Porch | Enclosed Porch |
| Porch Area | 135 sqft |
| Total Buildings | 2 Buildings |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0000086 |
|---|---|
| Street Address | 2025 18TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-5501 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 3 ALCORN |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 30 |
| Legal Subdivision | ALCORN SUB - BO |
| Legal Block | 1 |
| Legal Lot Number | 3 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1024 |
| Census Tract | 12205 |
Source: Boulder County records, as of October 1, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 2025 18TH ST, BOULDER, CO 80302-5501 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 30, 2012 · Amount on Record |
| Deed Sale | Aug 30, 2012 · Amount on Record |
| Prior Sale | Jan 2, 2004 · Amount on Record |
| Deed Document Number | 20123248059 |
| Prior Transfer Date | Dec 20, 2011 |
| Prior Transfer Doc | 0003248059 |
| Record Updated | Oct 29, 2026 |
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $99,824 (+3.85%) Land $57,739 Building $42,085 | $1,538,000 (-) Land $919,100 Building $618,900 | |
| 2025 | $9,165.00 (+1.56%) | $96,125 (-9.63%) Land $57,444 Building $38,681 | $1,538,000 (-3.12%) Land $919,100 Building $618,900 |
| 2024 | $9,024.00 (+1.77%) | ||
| 2023 | $8,867.00 (+16.41%) | $106,369 (+29.67%) Land $60,494 Building $45,875 | $1,587,600 (+34.51%) Land $902,900 Building $684,700 |
| 2022 | $7,617.00 | $82,031 Land $47,211 Building $34,820 | $1,180,300 Land $679,300 Building $501,000 |
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.
Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 5 in force |
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 98% of the US · lower than 99.2% of Colorado |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF BOULDER serves 166,080 people · EPA ID CO0107152 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2024 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | Haloacetic acids resolved · Jul 2017 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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.
Source: FCC Broadband Data Collection, based on 544 locations within half a mile, as of December 31, 2025
| Provider | Max 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 |
May also be available: AT&T.
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