Boulder County property record for 4456 Hamilton Ct, Boulder, CO 80305
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 1,107 sqft · built 1960 |
| Lot Size | 0.158 acres (6,861 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $3,889 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1577-05-4-09-027 |
| Primary APN | 1577-05-4-09-027 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,107 sqft Living Area |
| Gross Area | 2,511 sqft |
| 1st Floor Area | 1,107 sqft |
| Basement Area | 1,107 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Ranch |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 6,861 sqft (0.158 acres) |
| Garage Type | Attached |
| Garage Area | 297 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Porch Area | 20 sqft |
| Patio Area | 128 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0012549 |
|---|---|
| Street Address | 4456 HAMILTON CT |
| City | BOULDER |
| State | CO |
| Zip | 80305-5554 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 27 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 | 27 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1018 |
| Census Tract | 12507 |
Source: Boulder County records, as of September 18, 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 Record |
|---|---|
| Mailing Address | 4456 HAMILTON CT, BOULDER, CO 80305-5554 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
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 | $46,424 (-1.32%) Land $32,402 Building $14,022 | $752,700 (-) Land $546,500 Building $206,200 | |
| 2025 | $3,889.00 (+3.49%) | $47,044 (-12.73%) Land $34,156 Building $12,888 | $752,700 (-6.45%) Land $546,500 Building $206,200 |
| 2023 | $3,758.00 (+14.02%) | $53,908 (+27.01%) Land $40,026 Building $13,882 | $804,600 (+31.75%) Land $597,400 Building $207,200 |
| 2022 | $3,296.00 | $42,443 Land $29,690 Building $12,753 | $610,700 Land $427,200 Building $183,500 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
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 Record 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.
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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