Boulder County property record for 18 Benthaven Pl, Boulder, CO 80305
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1.5 ba · 1,303 sqft · built 1976 |
| Lot Size | 0.044 acres (1,907 sqft) |
| Owner | Trust Name on File |
| Last Sale | $297,500 (Jun 2001) |
| Tax Bill | $4,117 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1577-07-4-08-018 |
| Primary APN | 1577-07-4-08-018 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Building Area | 1,303 sqft Living Area |
| 1st Floor Area | 814 sqft |
| Upper Floors Area | 489 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1976 |
| Architectural Style | Townhouse |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 1,907 sqft (0.044 acres) |
| Garage Type | Detached |
| Garage Area | 456 sqft |
| Parking Spaces | 2 Parking Spaces |
| Patio Area | 98 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0014708 |
|---|---|
| Street Address | 18 BENTHAVEN PL |
| City | BOULDER |
| State | CO |
| Zip | 80305-6210 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 18 BLK 1 BLDG AREA 3 DEVILS THUMB 3 AMENDED PLAT |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 07 |
| Legal Subdivision | DEVILS THUMB 3 - BO |
| Legal Block | 1 |
| Legal Lot Number | 18 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 12510 |
18 Benthaven Pl is owner-occupied and held in a trust since July 2011.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 18 BENTHAVEN PL, BOULDER, CO 80305-6210 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Living Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 11, 2001 · Amount on File |
| Deed Sale | Jun 11, 2001 · Amount on File |
| Prior Sale | Mar 31, 2000 · Amount on File |
| Deed Document Number | 20012159392 |
| Last Transfer Date | Jul 6, 2011 |
| Transfer Doc | 0003158626 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 18 Benthaven Pl was $4,117.
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 | $49,028 (-0.83%) Land $26,751 Building $22,277 | $791,000 (-) Land $463,400 Building $327,600 | |
| 2025 | $4,117.00 | $49,438 Land $28,963 Building $20,475 | $791,000 Land $463,400 Building $327,600 |
| 2023 | $3,823.00 (+2.93%) | $54,666 (+16.44%) Land $33,259 Building $21,407 | $815,900 (+20.78%) Land $496,400 Building $319,500 |
| 2022 | $3,714.00 | $46,947 Land $25,659 Building $21,288 | $675,500 Land $369,200 Building $306,300 |
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.
FEMA maps place 18 Benthaven Pl in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1997.
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 7 in force |
| Nearby Flood Claims | 1 (1997) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Aug 1997 · rainfall accumulation |
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 risk around 18 Benthaven Pl is high, ranking above 71% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 71% of the US · above 67% of Colorado |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Indirect 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 458 locations within half a mile, as of December 31, 2025
| Provider | Max 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 |
May also be available: Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures