Boulder County property record for 1638 18th St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,878 sqft · built 1989 |
| Lot Size | 0.09 acres (3,934 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $134,500 (Jan 1990) |
| Tax Bill | $7,239 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 1463-30-8-54-002 |
| Primary APN | 1463-30-8-54-002 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,878 sqft Living Area |
| 1st Floor Area | 966 sqft |
| Upper Floors Area | 912 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 3,934 sqft (0.09 acres) |
| Deck Area | 132 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0108772 |
|---|---|
| Street Address | 1638 18TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-6430 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 2 1636 & 1638 18TH STREET SUBDIVISION |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 30 |
| Legal Subdivision | 1636 & 1638 18TH STREET - BO |
| Legal Block | 1 |
| Legal Lot Number | 2 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1019 |
| Census Tract | 12206 |
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 Record | Individual Name on Record |
|---|---|
| Mailing Address | 2907 SHADOW CREEK DR, 104, BOULDER, CO 80303-1733 |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jan 19, 1990 · Amount on Record |
| Deed Sale | Jan 19, 1990 · Amount on Record |
| Prior Sale | Oct 10, 1989 |
| Deed Document Number | 19901024246 |
| Last Transfer Date | Mar 8, 1999 |
| Transfer Doc | 0001915443 |
| 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 | $76,928 (+2.46%) Land $42,459 Building $34,469 | $1,201,300 (-) Land $694,400 Building $506,900 | |
| 2025 | $7,239.00 (+1.4%) | $75,081 (-12.18%) Land $43,400 Building $31,681 | $1,201,300 (-5.85%) Land $694,400 Building $506,900 |
| 2023 | $7,139.00 (+16.52%) | $85,492 (+31.17%) Land $51,000 Building $34,492 | $1,276,000 (+36.06%) Land $761,200 Building $514,800 |
| 2022 | $6,127.00 | $65,178 Land $38,156 Building $27,022 | $937,800 Land $549,000 Building $388,800 |
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 AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on Record median of 101 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 174 units insured incl. 73 condo units |
| Nearby Flood Claims | 10 (2013) |
| Most Recent Claim | Oct 2013 · rainfall accumulation |
| Claims by Event |
|
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 | Not rated no burnable land within 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 432 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 · DSL in parts of the area | 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 |
| AT&T Fixed Wireless | 100 / 20 |
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