Boulder County property record for 340 18th St, Boulder, CO 80302 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 4 Beds |
| Bathrooms | 3.5 Baths |
| Year Built | Built 2005 |
| Square Footage | 2,384 sqft Living Area |
| Lot Size | 8,484 sqft (0.195 acres) |
| Garage | Detached, 462 sqft |
| Last Sale | $1,850,000 (2021) |
| Tax Bill | $11,510.00 (2025) |
| Primary APN | 1577-06-2-16-004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 7 Rooms |
| Building Area | 2,384 sqft Living Area |
| 1st Floor | 1,213 sqft 1st Floor |
| Basement Area | 1,171 sqft Basement |
| Finished Basement | 1,171 sqft Finished |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | Bi-Level Style |
| Exterior Material | Combination Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 8,484 sqft (0.195 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Detached Garage |
| Garage Area | 462 sqft Garage |
| Deck Area | 477 sqft Deck |
| Porch | Porch |
| Porch Area | 290 sqft Porch |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Hot Water Heating |
| Account Number | R0005745 |
|---|---|
| Street Address | 340 18TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-8006 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | S 41 FT LOT 8 & LOT 9 LESS S 31 FT BLK 14 INTERURBAN PARK |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 06 |
| Legal Subdivision | INTERURBAN PARK - BO |
| Legal Block | 14 |
| Legal Lot Number | 8 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 1 |
| Census Block | 1023 |
| Census Tract | 12505 |
Source: Boulder County records · APN 1577-06-2-16-004
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 | 340 18TH ST, BOULDER, CO 80302-8006 |
| Owner Type | Owner is a Company |
| Date | Document |
|---|---|
| Apr 19, 2021 | Deed of Trust, Mortgage · Line of Credit ZB NA |
| May 05, 2021 | Warranty Deed, Transfer · Line of Credit ZB NA |
| Deed Names | Verified Name on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20213882999 |
| Last Transfer Date | Oct 03, 2024 |
| Transfer Doc | 0004062793 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 340 18TH ST, BOULDER, CO 80302-8006 |
| Transaction Type | Mortgage |
| Record Updated | Sep 17, 2021 |
| Title Company | HERITAGE TITLE COMPANY |
| Name | Verified Name |
|---|
| Document Number | 0003877937 |
|---|---|
| Date | Apr 19, 2021 |
| Instrument | 3877937 |
| Name | ZB NA |
|---|---|
| Type | Bank |
| Address | BOULDER, CO 80302 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 07, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly (Revolving credit lines are monthly unless stated otherwise). |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | May 05, 2021 |
| Property Address | 340 18TH ST, BOULDER, CO 80302-8006 |
| Document Number | 0003882999 |
| Instrument Date | May 04, 2021 |
| Instrument | 3882999 |
| Transaction Type | Transfer |
| Record Updated | Sep 17, 2021 |
| Title Company | FIDELITY NATIONAL TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $185.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | JT |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 340 18TH ST, BOULDER, CO 80302-8006 |
| Document Number | 0003883001 |
|---|---|
| Date | May 05, 2021 |
| Instrument | 3883001 |
| Name | ZB NA |
|---|---|
| Type | Bank |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | May 04, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly (Revolving credit lines are monthly unless stated otherwise). |
| Document Number | 0003883000 |
|---|---|
| Date | May 05, 2021 |
| Instrument | 3883000 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | PONTIAC, MI 48341 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jun 01, 2051 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (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 | $131,342 (+8.8%) Land $69,843 Building $61,499 | $1,931,500 (-) Land $1,027,100 Building $904,400 | |
| 2025 | $11,510.00 (+14.05%) | $120,719 (+0.14%) Land $64,194 Building $56,525 | $1,931,500 (+7.35%) Land $1,027,100 Building $904,400 |
| 2023 | $10,092.00 (+7.96%) | $120,553 (+19.75%) Land $65,405 Building $55,148 | $1,799,300 (+24.22%) Land $976,200 Building $823,100 |
| 2022 | $9,348.00 | $100,670 Land $53,591 Building $47,079 | $1,448,500 Land $771,100 Building $677,400 |
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