Boulder County property record for 320 Sumner St, Longmont, CO 80501 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1975 |
| Square Footage | 2,004 sqft Living Area |
| Lot Size | 6,077 sqft (0.14 acres) |
| Garage | Detached, 216 sqft |
| Last Sale | $465,000 (2016) |
| Tax Bill | $4,630.00 (2025) |
| Primary APN | 1315-04-1-27-007 |
|---|---|
| Alternative APNs |
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| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Building Area | 2,004 sqft Living Area |
| Gross Area | 3,299 sqft Gross Area |
| 1st Floor | 1,316 sqft 1st Floor |
| Upper Floors | 688 sqft Upper Floors |
| Basement Area | 1,036 sqft Basement |
| Stories | 2 Stories |
| Interior Structure | Plaster Interior Structure |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | A-Frame Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 6,077 sqft (0.14 acres) |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Detached Garage |
| Garage Area | 216 sqft Garage |
| Porch | Enclosed Porch |
| Porch Area | 259 sqft Porch |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Forced Air with Air Conditioning Heating |
| Account Number | R0040470 |
|---|---|
| Street Address | 320 SUMNER ST |
| City | LONGMONT |
| State | CO |
| Zip | 80501-4831 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOTS 11-12 BLK 3 CAPITOL HILL |
| Legal Range | 69 |
| Legal Township | 2N |
| Legal Section | 04 |
| Legal Subdivision | CAPITOL HILL - LG |
| Legal Block | 3 |
| Legal Lot Number | 11 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | LONGMONT |
| Census Blockgroup | 4 |
| Census Block | 4008 |
| Census Tract | 13302 |
Source: Boulder County records · APN 1315-04-1-27-007
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 | Individual Owner on File |
|---|---|
| Mailing Address | 1630 30TH ST, BOULDER, CO 80301-1044 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20163524694 |
| 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 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 | $47,995 (+8.8%) Land $9,976 Building $38,019 | $705,800 (-) Land $146,700 Building $559,100 | |
| 2025 | $4,630.00 (+12.65%) | $44,113 (-6.64%) Land $9,169 Building $34,944 | $705,800 (+0.09%) Land $146,700 Building $559,100 |
| 2023 | $4,110.00 (+9.51%) | $47,248 (+24.56%) Land $10,264 Building $36,984 | $705,200 (+29.2%) Land $153,200 Building $552,000 |
| 2022 | $3,753.00 | $37,933 Land $7,555 Building $30,378 | $545,800 Land $108,700 Building $437,100 |
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