Boulder County property record for 109 E Saint Clair Ave, Longmont, CO 80504 · Last verified June 2026
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,400 sqft · built 1945 |
| Lot Size | 0.278 acres (12,090 sqft) |
| Owner | Company Name on File |
| Last Sale | $104,500 (Mar 1999) |
| Tax Bill | $2,636 (2025) |
| Flood Zone | Zone AE (high risk) |
| APN | 1315-02-2-21-005 |
| Primary APN | 1315-02-2-21-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,400 sqft Living Area |
| 1st Floor Area | 1,400 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1945 |
|---|---|
| Effective Year Built | Effective 1953 |
| Architectural Style | Ranch |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 12,090 sqft (0.278 acres) |
| Porch | Porch |
| Porch Area | 288 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0040427 |
|---|---|
| Street Address | 109 E SAINT CLAIR AVE |
| City | LONGMONT |
| State | CO |
| Zip | 80504-5117 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS 20-23 BLK 5 KENSINGTON PLACE |
| Legal Range | 69 |
| Legal Township | 2N |
| Legal Section | 02 |
| Legal Subdivision | KENSINGTON PLACE - LG |
| Legal Block | 5 |
| Legal Lot Number | 20 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 13401 |
Source: Boulder County records · APN 1315-02-2-21-005
Assessment roll updated June 15, 2026 · Last verified June 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 530 S 42ND ST, BOULDER, CO 80305-5907 |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Mar 15, 1999 · Amount on Record |
| Deed Sale | Mar 15, 1999 · Amount on Record |
| Prior Sale | Jul 27, 1987 |
| Deed Document Number | 19991916589 |
| Prior Transfer Date | Oct 19, 1998 |
| Prior Transfer Doc | 0001860933 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Longmont City |
| Unified School District | St. Vrain Valley School District RE 1J (PK - 12) |
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.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $27,329 (+8.8%) Land $10,819 Building $16,510 | $401,900 (-) Land $159,100 Building $242,800 | |
| 2025 | $2,636.00 (+14.86%) | $25,119 (-10.35%) Land $9,944 Building $15,175 | $401,900 (-3.9%) Land $159,100 Building $242,800 |
| 2023 | $2,295.00 (+4.75%) | $28,020 (+26.5%) Land $10,881 Building $17,139 | $418,200 (+31.22%) Land $162,400 Building $255,800 |
| 2022 | $2,191.00 | $22,150 Land $7,944 Building $14,206 | $318,700 Land $114,300 Building $204,400 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130134011, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone AE |
|---|---|
| Special Flood Hazard Area | Yes |
| Flood Hazard | High |
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required (federally backed mortgages) |
| Flood Insurance Cost | Premium on Record median of 34 individual NFIP policies nearby |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 34 in force |
| Nearby Flood Claims | 2 (1990) |
| Claims Outside the SFHA | 1 of 2 |
| Most Recent Claim | Aug 1990, rainfall accumulation |
| Wildfire Risk | Low above 5% of the US · above 2% of Colorado |
|---|---|
| Wildfire Likelihood | Less than 1 in 10,000 per year |
| Exposure | Direct burnable vegetation at the parcel |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 564 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| City of Longmont | Fiber | 10,000 / 10,000 |
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fixed Wireless | 300 / 20 |
| Lumen Technologies | DSL | 140 / 20 |
May also be available at this address: TDS Telecom, AT&T, T-Mobile USA, JAB Wireless. Availability varies by address; speeds are provider-advertised maximums, not measured.
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