Boulder County property record for 329 Sumner St, Longmont, CO 80501
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.75 ba · 2,343 sqft · built 1950 |
| Lot Size | 0.15 acres (6,516 sqft) |
| Owner | Company Name on File |
| Last Sale | $565,590 (Jun 2023) |
| Tax Bill | $3,670 (2025) |
| Deeds & Mortgages | Jun 2023 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1315-04-1-26-019 |
| Primary APN | 1315-04-1-26-019 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 2,343 sqft Living Area |
| Gross Area | 2,442 sqft |
| 1st Floor Area | 1,221 sqft |
| Basement Area | 1,221 sqft |
| Finished Basement | 1,122 sqft |
| Unfinished Basement | 99 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 1950 |
| Architectural Style | Ranch |
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 6,516 sqft (0.15 acres) |
| Garage Type | Detached |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 257 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0046443 |
|---|---|
| Street Address | 329 SUMNER ST |
| City | LONGMONT |
| State | CO |
| Zip | 80501-4830 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS 37-38 BLK 2 CAPITOL HILL |
| Legal Range | 69 |
| Legal Township | 2N |
| Legal Section | 04 |
| Legal Subdivision | CAPITOL HILL - LG |
| Legal Block | 2 |
| Legal Lot Number | 37 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 4 |
| Census Block | 4007 |
| Census Tract | 13302 |
329 Sumner St is owned by a company that bought it in June 2023.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 920 COFFMAN ST, LONGMONT, CO 80501-4543 |
| Owner Type | Company |
| Vesting | Limited Liability Company |
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 12, 2023 · Amount on File |
| Deed Sale | Jun 12, 2023 · Amount on File |
| Prior Sale | Jan 25, 1994 · Amount on File |
| Deed Document Number | 20234010597 |
| Prior Transfer Date | Jun 16, 2004 |
| Prior Transfer Doc | 0002607891 |
| Record Updated | Oct 29, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jun 12, 2023 |
| Property Address | 329 SUMNER ST, LONGMONT, CO 80501-4830 |
| Document Number | 0004010597 |
| Instrument Date | Jun 8, 2023 |
| Instrument | 4010597 |
| Transaction Type | Transfer |
| Record Updated | Jul 4, 2023 |
| Title Company | LAND TITLE GUARANTY COMPANY IN, LAND TITLE GUARANTEE CO |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $56.56 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 329 SUMNER ST, LONGMONT, CO 80501-4830 |
| Name | Verified Name |
|---|---|
| Address | 920 CO RNAN ST, LONGMONT, CO 80501 |
| Document Number | 0004010598 |
|---|---|
| Date | Jun 12, 2023 |
| Instrument | 4010598 |
| Name | HIGH PLAINS BANK |
|---|---|
| Type | Bank |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 300 Months |
| Due | Jun 9, 2048 |
The 2025 property tax bill for 329 Sumner St was $3,670, up 12.2% from the year before.
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 | $34,241 (-2.08%) Land $6,524 Building $27,717 | $559,500 (-) Land $151,900 Building $407,600 | |
| 2025 | $3,670.00 (+12.2%) | $34,969 Land $9,494 Building $25,475 | $559,500 Land $151,900 Building $407,600 |
| 2024 | $3,271.00 (+1.39%) | ||
| 2023 | $3,226.00 (+11.51%) | $37,882 (+30.87%) Land $10,626 Building $27,256 | $565,400 (+35.75%) Land $158,600 Building $406,800 |
| 2022 | $2,893.00 | $28,947 Land $7,819 Building $21,128 | $416,500 Land $112,500 Building $304,000 |
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.
FEMA maps place 329 Sumner St in Zone X, an area of minimal flood risk.
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 | 1 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.
Wildfire risk around 329 Sumner St is low, with less than 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 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 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 252 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 |
May also be available: Verizon.
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