Boulder County property record for 800 Union Ave, Boulder, CO 80304 · Last verified August 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 5 Beds |
| Bathrooms | 3.25 Baths |
| Year Built | Built 2024 |
| Square Footage | 4,210 sqft Living Area |
| Lot Size | 9,246 sqft (0.212 acres) |
| Garage | Attached, 782 sqft |
| Last Sale | $780,000 (2019) |
| Tax Bill | $8,150.00 (2025) |
| Primary APN | 1461-13-1-41-004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Partial Baths | 2 Partial Baths |
| Total Rooms | 8 Rooms |
| Building Area | 4,210 sqft Living Area |
| Gross Area | 4,992 sqft Gross Area |
| 1st Floor | 1,484 sqft 1st Floor |
| Basement Area | 1,177 sqft Basement |
| Finished Basement | 1,177 sqft Finished |
| Stories | 1 Stories |
| Interior Structure | Wallboard/Drywall Interior Structure |
| Year Built | Built 2024 |
|---|---|
| Effective Year Built | Effective 2024 |
| Architectural Style | Ranch Style |
| Exterior Material | Wood Shingle Exterior |
| Construction Type | Frame Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 9,246 sqft (0.212 acres) |
| Parking Spaces | 2 Parking Spaces |
| Garage Type | Attached Garage |
| Garage Area | 782 sqft Garage |
| Porch | Porch |
| Porch Area | 240 sqft Porch |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0511696 |
|---|---|
| Street Address | 800 UNION AVE |
| City | BOULDER |
| State | CO |
| Zip | 80304-0709 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 1A REBECCAS LANDING SUBDIVISION AS SHOWN ON LOT LINE ADJUSTMENT MAP REC# 2789874 |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 13 |
| Legal Subdivision | REBECCAS LANDING |
| Legal Tract | 1 |
| Legal Block | 1 |
| Legal Lot Number | 1A |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 1 |
| Census Block | 1007 |
| Census Tract | 12104 |
Source: Boulder County records · APN 1461-13-1-41-004
Assessment roll updated June 15, 2026 · Last verified August 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 | 520 COLONIAL RD, GUILFORD, CT 06437-3117 |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| Jun 15, 2023 | Intrafamily Transfer, Transfer · Building or Construction Mortgage ZB NA |
| Aug 13, 2019 | Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Dec 29, 2020 | Intrafamily Transfer, Transfer · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Apr 17, 2019 | Warranty Deed, Transfer · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20193707606 |
| Last Transfer Date | Jun 12, 2023 |
| Transfer Doc | 0004010960 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jun 15, 2023 |
| Property Address | 800 UNION AVE, BOULDER, CO 80304-0709 |
| Document Number | 0004010960 |
| Map Reference | DOC 2209874 |
| Instrument Date | Jun 12, 2023 |
| Instrument | 4010960 |
| Transaction Type | Transfer |
| Record Updated | Jul 12, 2023 |
| Title Company | NOT AVAILABLE, HOMESTEAD TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Zero or No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 800 UNION AVE, BOULDER, CO 80304-0709 |
| Document Number | 0004010961 |
|---|---|
| Date | Jun 15, 2023 |
| Instrument | 4010961 |
| Name | ZB NA |
|---|---|
| Type | Bank |
| Type | Building or Construction Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 385 Months |
| Due | Jul 01, 2055 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.87% |
| Adjustable | Document includes a rider for adjustable-rate mortgage with a specific rate change date. |
| Type Change Date | Jul 01, 2032 |
| Change Frequency | Annually |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 10.8% |
| Index | 1-Year CMT |
| Max Rate | 10.8% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 800 UNION AVE, BOULDER, CO 80304-0709 |
| Transaction Type | Mortgage |
| Record Updated | Mar 31, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|
| Document Number | 0003729843 |
|---|---|
| Date | Aug 13, 2019 |
| Instrument | 3729843 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 357 Months |
| Due | May 01, 2049 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Dec 29, 2020 |
| Property Address | 800 UNION AVE, BOULDER, CO 80304-0709 |
| Document Number | 0003845901 |
| Map Reference | DOC 2597687 |
| Instrument Date | Nov 19, 2020 |
| Instrument | 3845901 |
| Transaction Type | Transfer |
| Record Updated | Mar 31, 2022 |
| Title Company | SERVICELINK |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenant/Joint Tenant w/ Right Of Survivorship |
| Address | 800 UNION AVE, BOULDER, CO 80304-0709 |
| Document Number | 0003845902 |
|---|---|
| Date | Dec 29, 2020 |
| Instrument | 3845902 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Dec 01, 2050 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Apr 17, 2019 |
| Property Address | 800 UNION AVE, BOULDER, CO 80304-0709 |
| Document Number | 0003707606 |
| Map Reference | DOC 2597687 |
| Instrument Date | Apr 16, 2019 |
| Instrument | 3707606 |
| Transaction Type | Transfer |
| Record Updated | Mar 31, 2022 |
| Title Company | FIDELITY NATIONAL TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $78.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 00000 |
| Name | Verified Name |
|---|---|
| Address | 800 UNION AVE, BOULDER, CO 80304-0709 |
| Document Number | 0003707607 |
|---|---|
| Date | Apr 17, 2019 |
| Instrument | 3707607 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 01, 2049 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified August 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 | $138,237 (+61.72%) Land $77,921 Building $60,316 | $2,032,900 (+48.64%) Land $1,145,900 Building $887,000 | |
| 2025 | $8,150.00 (+35.97%) | $85,478 (+25.32%) Land $71,619 Building $13,859 | $1,367,650 (+27.45%) Land $1,145,900 Building $221,750 |
| 2024 | $5,994.00 (-6.17%) | $68,209 (-12.18%) Land $66,214 Building $1,995 | $1,073,051 (-7.43%) Land $1,043,280 Building $29,771 |
| 2023 | $6,388.00 (+17.23%) | $77,667 (+32.34%) Land $69,900 Building $7,767 | $1,159,200 (+37.28%) Land $1,043,280 Building $115,920 |
| 2022 | $5,449.00 | $58,686 Land $52,817 Building $5,869 | $844,400 Land $759,960 Building $84,440 |
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