Boulder County property record for 4478 Hamilton Ct, Boulder, CO 80305
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,901 sqft · built 1960 |
| Lot Size | 0.31 acres (13,482 sqft) |
| Owner | Individual Name on File |
| Last Sale | $370,000 (May 2004) |
| Tax Bill | $5,866 (2025) |
| Deeds & Mortgages | Jul 2018 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 1577-04-3-25-002 |
| Primary APN | 1577-04-3-25-002 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Building Area | 1,901 sqft Living Area |
| Gross Area | 2,254 sqft |
| 1st Floor Area | 1,150 sqft |
| Basement Area | 851 sqft |
| Finished Basement | 276 sqft |
| Unfinished Basement | 575 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Split Level |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 13,482 sqft (0.31 acres) |
| Garage Type | Attached |
| Garage Area | 253 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Porch Area | 336 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0013324 |
|---|---|
| Street Address | 4478 HAMILTON CT |
| City | BOULDER |
| State | CO |
| Zip | 80305-5554 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 36 BLK 12 WILLIAM MARTIN HOMESTEAD |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 05 |
| Legal Subdivision | WILLIAM MARTIN HOMESTEAD - BO |
| Legal Block | 12 |
| Legal Lot Number | 36 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1018 |
| Census Tract | 12507 |
4478 Hamilton Ct is owned by an individual who bought it in May 2004.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 184 CORONADO CIR, PAGOSA SPRINGS, CO 81147-1023 |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | May 18, 2004 · Amount on File |
| Deed Sale | May 18, 2004 · Amount on File |
| Prior Sale | Jun 5, 1989 · Amount on File |
| Deed Document Number | 20042588199 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 4478 HAMILTON CT, BOULDER, CO 80305-5554 |
| Document Number | 0003665192 |
| Instrument Date | Jul 9, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Jul 19, 2018 |
| Name | Verified Name |
|---|---|
| Address | 8565 W PRENTICE AVE LITTLETON CO 801232109, LITTLETON, CO 80123-2109 |
| Document Number | 0003665192 |
|---|---|
| Date | Jul 11, 2018 |
| Instrument | 3665192 |
| Name | FIRSTBANK |
|---|---|
| Type | Bank |
| Address | LAKEWOOD, CO 80215 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 36 Months |
| Due | Jul 10, 2021 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 6% |
The 2025 property tax bill for 4478 Hamilton Ct was $5,866.
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $62,179 (+1.06%) Land $47,335 Building $14,844 | $984,400 (-) Land $766,100 Building $218,300 | |
| 2025 | $5,866.00 | $61,525 Land $47,881 Building $13,644 | $984,400 Land $766,100 Building $218,300 |
| 2023 | $5,762.00 (+11.36%) | $70,411 (+26.37%) Land $56,106 Building $14,305 | $1,050,900 (+31.08%) Land $837,400 Building $213,500 |
| 2022 | $5,174.00 | $55,719 Land $41,617 Building $14,102 | $801,700 Land $598,800 Building $202,900 |
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.
FEMA maps place 4478 Hamilton Ct in Zone X, an area of minimal flood risk, though there have been 16 flood claims nearby since 1995.
Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 25 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 25 in force |
| Nearby Flood Claims | 16 (1995–2013) |
| Claims Outside the SFHA | 2 of 16 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
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.
Wildfire risk around 4478 Hamilton Ct is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 91% of Colorado |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF BOULDER serves 166,080 people · EPA ID CO0107152 |
|---|---|
| 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, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 678 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| CenturyLink Fiber · DSL in parts of the area | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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