Boulder County property record for 1521 Alpine St, Longmont, CO 80504
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 3 ba · 3,154 sqft · built 1994 |
| Lot Size | 0.27 acres (11,769 sqft) |
| Owner | Individual Name on File |
| Last Sale | $420,000 (Apr 2017) |
| Tax Bill | $4,217 (2025) |
| Deeds & Mortgages | Jun 2021 Mortgage Aug 2018 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 1205-35-1-03-009 |
| Primary APN | 1205-35-1-03-009 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 3,154 sqft Living Area |
| Gross Area | 3,707 sqft |
| 1st Floor Area | 1,130 sqft |
| Upper Floors Area | 1,093 sqft |
| Basement Area | 1,064 sqft |
| Finished Basement | 931 sqft |
| Unfinished Basement | 133 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1994 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 11,769 sqft (0.27 acres) |
| Garage Type | Attached |
| Garage Area | 420 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | 80 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0117103 |
|---|---|
| Street Address | 1521 ALPINE ST |
| City | LONGMONT |
| State | CO |
| Zip | 80504-3064 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 9 BLK 1 DODD 1ST FILING |
| Legal Range | 69 |
| Legal Township | 3N |
| Legal Section | 35 |
| Legal Subdivision | DODD 1ST FILING - LGV |
| Legal Block | 1 |
| Legal Lot Number | 9 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 2 |
| Census Block | 2022 |
| Census Tract | 13507 |
1521 Alpine St is owned and occupied by an individual who bought it in April 2017.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 1521 ALPINE ST, LONGMONT, CO 80504-3064 |
| 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 |
|---|---|
| Jun 8, 2021 | Deed of Trust, Mortgage · Conventional Mortgage GUILD MORTGAGE CO |
| Aug 8, 2018 | Deed of Trust, Mortgage · FHA Mortgage NATIONSTAR MORTGAGE LLC |
| Apr 18, 2017 | Warranty Deed, Transfer · Conventional Mortgage GUILD MORTGAGE CO |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 18, 2017 · Amount on File |
| Deed Sale | Apr 18, 2017 · Amount on File |
| Prior Sale | Oct 7, 1994 · Amount on File |
| Deed Document Number | 20173586934 |
| Prior Transfer Date | Aug 19, 1994 |
| Prior Transfer Doc | 0001468970 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 1521 ALPINE ST, LONGMONT, CO 80504-3064 |
| Transaction Type | Mortgage |
| Record Updated | Sep 22, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0003891190 |
|---|---|
| Date | Jun 8, 2021 |
| Instrument | 3891190 |
| Name | GUILD MORTGAGE CO |
|---|---|
| Type | Mortgage Company |
| Address | SAN DIEGO, CA 92111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 313 Months |
| Due | Jul 1, 2047 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 1521 ALPINE ST, LONGMONT, CO 80504-3064 |
| Transaction Type | Mortgage |
| Record Updated | Sep 22, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0003670126 |
|---|---|
| Date | Aug 8, 2018 |
| Instrument | 3670126 |
| Name | NATIONSTAR MORTGAGE LLC |
|---|---|
| Type | Mortgage Company |
| Address | LEWISVILLE, TX 75067 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 104 Months |
| Due | Apr 1, 2027 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Apr 18, 2017 |
| Property Address | 1521 ALPINE ST, LONGMONT, CO 80504-3064 |
| Document Number | 0003586934 |
| Instrument Date | Apr 14, 2017 |
| Instrument | 3586934 |
| Transaction Type | Transfer |
| Record Updated | Sep 22, 2021 |
| Title Company | STEWART TITLE |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $42.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 00000 |
| Name | Verified Name |
|---|---|
| Address | 1521 ALPINE ST, LONGMONT, CO 80504-3064 |
| Document Number | 0003586935 |
|---|---|
| Date | Apr 18, 2017 |
| Instrument | 3586935 |
| Name | GUILD MORTGAGE CO |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | May 1, 2047 |
The 2025 property tax bill for 1521 Alpine St was $4,217.
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Longmont City |
| Unified School District | St. Vrain Valley School District RE 1J (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $39,339 (-2.08%) Land $6,651 Building $32,688 | $642,800 (-) Land $162,100 Building $480,700 | |
| 2025 | $4,217.00 | $40,175 Land $10,131 Building $30,044 | $642,800 Land $162,100 Building $480,700 |
| 2023 | $3,659.00 (+11.96%) | $42,472 (+28.6%) Land $11,223 Building $31,249 | $633,900 (+33.4%) Land $167,500 Building $466,400 |
| 2022 | $3,268.00 | $33,026 Land $8,444 Building $24,582 | $475,200 Land $121,500 Building $353,700 |
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 1521 Alpine St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 14, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 1521 Alpine St has no burnable land within ember reach, so its wildfire risk is not rated.
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 LONGMONT serves 104,178 people · EPA ID CO0107485 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2025 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 520 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| NextLight Fiber | 10,000 / 10,000 |
| Xfinity Cable | 1,200 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| CenturyLink DSL | 140 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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