Boulder County property record for 3122 4th St, Boulder, CO 80304 · Last verified June 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 1.75 Baths |
| Year Built | Built 1980 |
| Square Footage | 1,983 sqft Living Area |
| Lot Size | 6,559 sqft (0.151 acres) |
| Occupancy | Owner Occupied |
| Last Sale | $570,000 (2012) |
| Tax Bill | $8,276.00 (2025) |
| Primary APN | 1461-24-4-02-008 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.75 Baths |
| Partial Baths | 1 Partial Baths |
| Total Rooms | 5 Rooms |
| Building Area | 1,983 sqft Living Area |
| Gross Area | 2,223 sqft Gross Area |
| 1st Floor | 1,143 sqft 1st Floor |
| Basement Area | 1,080 sqft Basement |
| Finished Basement | 840 sqft Finished |
| Unfinished Basement | 240 sqft Unfinished |
| Stories | 1 Stories |
| Interior Structure | Plaster Interior Structure |
| Year Built | Built 1949 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Ranch Style |
| Exterior Material | Combination Exterior |
| Construction Type | Masonry/Concrete Masonry Units (CMUs) Construction |
| Roof Material | Asphalt Roof |
| Lot Area | 6,559 sqft (0.151 acres) |
| Deck Area | 247 sqft Deck |
| Heating System | Forced Air with Air Conditioning Heating |
|---|
| Account Number | R0007618 |
|---|---|
| Street Address | 3122 4TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80304-2545 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 19-20 BLK 41 NEWLANDS |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 24 |
| Legal Subdivision | NEWLANDS - BO |
| Legal Block | 41 |
| Legal Lot Number | 19 |
| Jurisdiction | BOULDER CO |
| Minor Civil Division | BOULDER |
| Census Blockgroup | 2 |
| Census Block | 2026 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-24-4-02-008
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 Individual Names on File |
|---|---|
| Mailing Address | 3122 4TH ST, BOULDER, CO 80304-2545 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is an Individual, Couple or Unincorporated Entity |
| Date | Document |
|---|---|
| May 03, 2018 | Deed of Trust, Mortgage · Line of Credit UNITED STATES SENATE FCU |
| Nov 17, 2020 | Deed of Trust, Mortgage · Line of Credit UNITED STATES SENATE FCU |
| Sep 02, 2021 | Deed of Trust, Mortgage · Line of Credit UNITED STATES SENATE FCU |
| Aug 24, 2020 | Deed of Trust, Mortgage · Conventional Mortgage COLONIAL NAT'L MTG |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Known Transactions |
|
| Deed Doc Number | 20123202981 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3122 4TH ST, BOULDER, CO 80304-2545 |
| Transaction Type | Mortgage |
| Record Updated | Mar 31, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0003653638 |
|---|---|
| Date | May 03, 2018 |
| Instrument | 3653638 |
| Name | UNITED STATES SENATE FCU |
|---|---|
| Type | Credit Union |
| Address | WASHINGTON, DC 20013 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 239 Months |
| Due | Apr 27, 2038 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly (Revolving credit lines are monthly unless stated otherwise). |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3122 4TH ST, BOULDER, CO 80304-2545 |
| Transaction Type | Mortgage |
| Record Updated | Mar 31, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0003833727 |
|---|---|
| Date | Nov 17, 2020 |
| Instrument | 3833727 |
| Name | UNITED STATES SENATE FCU |
|---|---|
| Type | Credit Union |
| Address | WASHINGTON, DC 20013 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 239 Months |
| Due | Oct 19, 2040 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly (Revolving credit lines are monthly unless stated otherwise). |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3122 4TH ST, BOULDER, CO 80304-2545 |
| Transaction Type | Mortgage |
| Record Updated | Mar 31, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0003911623 |
|---|---|
| Date | Sep 02, 2021 |
| Instrument | 3911623 |
| Name | UNITED STATES SENATE FCU |
|---|---|
| Type | Credit Union |
| Address | WASHINGTON, DC 20013 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 239 Months |
| Due | Aug 30, 2041 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly (Revolving credit lines are monthly unless stated otherwise). |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3122 4TH ST, BOULDER, CO 80304-2545 |
| Document Number | 0003811273 |
| Instrument Date | Aug 24, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Oct 02, 2020 |
| Title Company | COMMERCE TITLE COMPANY, COMMERCE TITLE CO. |
| Name | Verified Name |
|---|---|
| Address | 3122 4TH ST BOULDER CO 803042545, BOULDER, CO 80304-2545 |
| Document Number | 0003811273 |
|---|---|
| Date | Aug 31, 2020 |
| Instrument | 3811273 |
| Name | COLONIAL NAT'L MTG |
|---|---|
| Type | Mortgage Company |
| Address | FORT WORTH, TX 76102 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | Aug 30, 2035 |
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 | $93,520 (+8.8%) Land $84,168 Building $9,352 | $1,375,300 (-) Land $1,237,770 Building $137,530 | |
| 2025 | $8,276.00 (+0.87%) | $85,957 (-12.13%) Land $77,361 Building $8,596 | $1,375,300 (-5.81%) Land $1,237,770 Building $137,530 |
| 2023 | $8,205.00 (+17.33%) | $97,827 (+31.32%) Land $88,044 Building $9,783 | $1,460,100 (+36.22%) Land $1,314,090 Building $146,010 |
| 2022 | $6,993.00 | $74,497 Land $67,047 Building $7,450 | $1,071,900 Land $964,710 Building $107,190 |
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