Boulder County property record for 3870 Elmhurst Pl, Boulder, CO 80305
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,803 sqft · built 1960 |
| Lot Size | 0.16 acres (6,975 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $32,625 (Nov 1995) |
| Tax Bill | $4,339 (2025) |
| Deeds & Mortgages | May 2019 Mortgage Jul 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1577-05-4-11-008 |
| Primary APN | 1577-05-4-11-008 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,803 sqft Living Area |
| Gross Area | 2,831 sqft |
| 1st Floor Area | 1,427 sqft |
| Basement Area | 1,107 sqft |
| Finished Basement | 376 sqft |
| Unfinished Basement | 731 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Ranch |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 6,975 sqft (0.16 acres) |
| Garage Type | Attached |
| Garage Area | 297 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0010979 |
|---|---|
| Street Address | 3870 ELMHURST PL |
| City | BOULDER |
| State | CO |
| Zip | 80305-5504 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 8 BLK 10 WILLIAM MARTIN HOMESTEAD |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 05 |
| Legal Subdivision | WILLIAM MARTIN HOMESTEAD - BO |
| Legal Block | 10 |
| Legal Lot Number | 8 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1022 |
| Census Tract | 12507 |
3870 Elmhurst Pl is owned and occupied by two individuals who acquired it in November 1995.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3870 ELMHURST PL, BOULDER, CO 80305-5504 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| May 30, 2019 | Deed of Trust, Mortgage · Conventional Mortgage COLONIAL NATIONAL MORTGAGE |
| Jul 8, 2020 | Deed of Trust, Mortgage · Conventional Mortgage COLONIAL NATIONAL MORTGAGE |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Nov 13, 1995 · Amount on File |
| Deed Sale | Nov 13, 1995 · Amount on File |
| Prior Sale | May 14, 1990 · Amount on File |
| Deed Document Number | 19951562398 |
| Last Transfer Date | Nov 17, 1995 |
| Transfer Doc | 0001564685 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3870 ELMHURST PL, BOULDER, CO 80305-5504 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | CAPITAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0003715054 |
|---|---|
| Date | May 30, 2019 |
| Instrument | 3715054 |
| Name | COLONIAL NATIONAL MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | FORT WORTH, TX 76102 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jun 1, 2049 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3870 ELMHURST PL, BOULDER, CO 80305-5504 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0003796715 |
|---|---|
| Date | Jul 8, 2020 |
| Instrument | 3796715 |
| Name | COLONIAL NATIONAL MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | FORT WORTH, TX 76102 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Aug 1, 2050 |
The 2025 property tax bill for 3870 Elmhurst Pl was $4,339.
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 | $51,558 (-0.4%) Land $32,708 Building $18,850 | $828,200 (-) Land $551,000 Building $277,200 | |
| 2025 | $4,339.00 | $51,763 Land $34,438 Building $17,325 | $828,200 Land $551,000 Building $277,200 |
| 2023 | $4,209.00 (+15.7%) | $59,127 (+28.18%) Land $40,354 Building $18,773 | $882,500 (+32.97%) Land $602,300 Building $280,200 |
| 2022 | $3,638.00 | $46,128 Land $29,934 Building $16,194 | $663,700 Land $430,700 Building $233,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3870 Elmhurst Pl in Zone X, an area of minimal flood risk, though there have been 16 flood claims nearby since 1995.
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 |
| Flood Insurance Cost | Premium on File median of 25 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 25 in force |
| Nearby Flood Claims | 16 (1995–2013) |
| Claims Outside the SFHA | 2 of 16 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| 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.
Wildfire risk around 3870 Elmhurst Pl is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 91% of Colorado |
|---|---|
| Wildfire Likelihood | 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 678 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 |
May also be available: AT&T.
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