Boulder County property record for 3305 4th St, Boulder, CO 80304
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 3,568 sqft · built 1928 |
| Lot Size | 0.182 acres (7,910 sqft) |
| Owner | Company Name on File |
| Last Sale | $2,285,000 (Jun 2020) |
| Tax Bill | $16,438 (2025) |
| Deeds & Mortgages | Mar 2021 Line of Credit Mar 2021 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-24-3-10-001 |
| Primary APN | 1461-24-3-10-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 3,568 sqft Living Area |
| Gross Area | 3,909 sqft |
| 1st Floor Area | 1,312 sqft |
| Upper Floors Area | 1,326 sqft |
| Basement Area | 930 sqft |
| Finished Basement | 930 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1928 |
|---|---|
| Effective Year Built | Effective 2008 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 7,910 sqft (0.182 acres) |
| Garage Type | Attached |
| Garage Area | 341 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
|---|---|
| Porch Area | 481 sqft |
| Deck Area | 80 sqft |
| Patio Area | 583 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Hot Water |
| Account Number | R0004931 |
|---|---|
| Street Address | 3305 4TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80304-1747 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 1 LESS N 71 FT LILLIE MAJOR PER LOT LINE ADJ REC 1452179 8/94 BCR |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 24 |
| Legal Subdivision | LILLIE MAJOR - BO |
| Legal Tract | 343 |
| Legal Block | 2 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 12101 |
Source: Boulder County records · APN 1461-24-3-10-001
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 | Company Name on File |
|---|---|
| Mailing Address | 3305 4TH ST, BOULDER, CO 80304-1747 |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Date | Document |
|---|---|
| Mar 09, 2021 | Deed of Trust, Mortgage · Line of Credit CITIBANK NA |
| Mar 09, 2021 | Quit Claim Deed, Transfer · Conventional Mortgage CITIBANK NA |
| Jun 29, 2020 | Grant Deed, Transfer HERITAGE TITLE COMPANY, HERITAGE TITLE CO. |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jun 29, 2020 · Amount on Record |
| Deed Sale | Jun 29, 2020 · Amount on Record |
| Prior Sale | Jun 26, 2012 · Amount on Record |
| Deed Document Number | 20203794857 |
| Prior Transfer Date | Feb 06, 2014 |
| Prior Transfer Doc | 0003369704 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3305 4TH ST, BOULDER, CO 80304-1747 |
| Transaction Type | Mortgage |
| Record Updated | Mar 31, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0003866066 |
|---|---|
| Date | Mar 09, 2021 |
| Instrument | 3866066 |
| Name | CITIBANK NA |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57108 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Mar 08, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Mar 09, 2021 |
| Property Address | 3305 4TH ST, BOULDER, CO 80304-1747 |
| Document Number | 0003866082 |
| Instrument Date | Mar 08, 2021 |
| Instrument | 3866082 |
| Transaction Type | Transfer |
| Record Updated | Mar 31, 2022 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1910 7TH ST, BOULDER, CO 80302-5026 |
| Document Number | 0003866065 |
|---|---|
| Date | Mar 09, 2021 |
| Instrument | 3866065 |
| Name | CITIBANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Apr 01, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.5% |
| Adjustable | Adjustable Rate Rider |
| Type Change Date | Apr 01, 2024 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 4.5% |
| Index | 1-Year LIBOR |
| Max Rate | 8.5% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jun 29, 2020 |
| Property Address | 3305 4TH ST, BOULDER, CO 80304-1747 |
| Document Number | 0003794857 |
| Instrument Date | Jun 26, 2020 |
| Instrument | 3794857 |
| Transaction Type | Transfer |
| Record Updated | Aug 13, 2020 |
| Title Company | HERITAGE TITLE COMPANY, HERITAGE TITLE CO. |
| Amount | Amount Recorded |
|---|---|
| Tax | $229.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 3305 4TH ST BOULDER CO 803041747, BOULDER, CO 80304-1747 |
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 | $187,578 (+8.8%) Land $104,938 Building $82,640 | $2,758,500 (-) Land $1,543,200 Building $1,215,300 | |
| 2025 | $16,438.00 (-5.4%) | $172,406 (-15.86%) Land $96,450 Building $75,956 | $2,758,500 (-9.8%) Land $1,543,200 Building $1,215,300 |
| 2023 | $17,377.00 (+17.83%) | $204,907 (+29.03%) Land $106,899 Building $98,008 | $3,058,300 (+33.84%) Land $1,595,500 Building $1,462,800 |
| 2022 | $14,747.00 | $158,808 Land $76,770 Building $82,038 | $2,285,000 Land $1,104,600 Building $1,180,400 |
Source: FEMA National Flood Hazard Layer as of October 14, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 63 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 63 in force |
| Nearby Flood Claims | 25 (1990–2026) |
| Claims Outside the SFHA | 17 of 25 |
| Most Recent Claim | Jun 2026 · rainfall accumulation |
| Claims by Event |
|
| Wildfire Risk | High above 76% of the US · above 76% of Colorado |
|---|---|
| Wildfire Likelihood | 0.6% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Fixed Wireless | 2,500 / 2,500 |
| Lumen Technologies Fiber | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| Live Wire Networks Fixed Wireless | 250 / 100 |
May also be available: T-Mobile USA.
Based on FCC filings for 431 locations within half a mile of this property.
5G (outdoors only) and 4G LTE
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF BOULDER serves 166,080 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2024 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | Haloacetic acids resolved · Jul 2017 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 last 3 years |
Results are for the whole water system as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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