Boulder County property record for 2909 S Flat Cir, Longmont, CO 80503 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 2.5 Baths |
| Year Built | Built 2023 |
| Square Footage | 2,372 sqft Living Area |
| Lot Size | 4,820 sqft (0.111 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $687,000 (2024) |
| Tax Bill | $6,517.00 (2025) |
| Primary APN | 1315-08-0-51-015 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 6 Rooms |
| Building Area | 2,372 sqft Living Area |
| Gross Area | 2,801 sqft Gross Area |
| 1st Floor | 1,003 sqft 1st Floor |
| Year Built | Built 2023 |
|---|---|
| Effective Year Built | Effective 2023 |
| Exterior Material | Wood Shingle Exterior |
| Roof Material | Asphalt Roof |
| Lot Area | 4,820 sqft (0.111 acres) |
| Garage Type | Attached Garage |
| Garage Area | 429 sqft Garage |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Account Number | R0614874 |
|---|---|
| Street Address | 2909 S FLAT CIR |
| City | LONGMONT |
| State | CO |
| Zip | 80503-9072 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 15 BLK 2 MOUNTAIN BROOK FLG 1 |
| Legal Subdivision | MOUNTAIN BROOK FLG 1 |
| Legal Block | 2 |
| Legal Lot Number | 15 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | LONGMONT |
| Census Blockgroup | 1 |
| Census Block | 1023 |
| Census Tract | 13212 |
Source: Boulder County records · APN 1315-08-0-51-015
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 | 2 Individuals Owners |
|---|---|
| Mailing Address | 2909 S FLAT CIR, LONGMONT, CO 80503-9072 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20244047821 |
| Record Refreshed | 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 is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $44,357 (+8.8%) Land $5,039 Building $39,318 | $652,300 (-) Land $74,100 Building $578,200 | |
| 2025 | $6,517.00 (+76.28%) | $40,769 (+59.18%) Land $4,631 Building $36,138 | $652,300 (+610.57%) Land $74,100 Building $578,200 |
| 2023 | $3,697.00 (+1.2%) | $25,612 (+12.94%) Land $25,612 | $91,800 (+17.39%) Land $91,800 |
| 2022 | $3,653.00 | $22,678 Land $22,678 | $78,200 Land $78,200 |
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