Boulder County property record for 4170 S Hampton Cir, Boulder, CO 80301
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.25 ba · 3,857 sqft · built 1994 |
| Lot Size | 0.165 acres (7,170 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $334,887 (May 1995) |
| Tax Bill | $7,484 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-17-4-09-011 |
| Primary APN | 1463-17-4-09-011 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 3,857 sqft Living Area |
| Gross Area | 4,481 sqft |
| 1st Floor Area | 1,493 sqft |
| Upper Floors Area | 1,237 sqft |
| Basement Area | 1,247 sqft |
| Finished Basement | 1,127 sqft |
| Unfinished Basement | 120 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1994 |
|---|---|
| Effective Year Built | Effective 1999 |
| Architectural Style | A-Frame |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 7,170 sqft (0.165 acres) |
| Garage Type | Attached |
| Garage Area | 504 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 232 sqft |
| Deck Area | 141 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0116745 |
|---|---|
| Street Address | 4170 S HAMPTON CIR |
| City | BOULDER |
| State | CO |
| Zip | 80301-6010 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 72 BLK 2 FOUR MILE CREEK FLG 1 |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 17 |
| Legal Subdivision | FOUR MILE CREEK FLG 1 - BO |
| Legal Block | 2 |
| Legal Lot Number | 72 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3030 |
| Census Tract | 12701 |
Source: Boulder County records · APN 1463-17-4-09-011
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 | 4170 S HAMPTON CIR, BOULDER, CO 80301-6010 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 22, 1995 · Amount on Record |
| Deed Sale | May 22, 1995 · Amount on Record |
| Deed Document Number | 19951518345 |
| Record Updated | Sep 20, 2026 |
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 | $92,208 (+8.8%) Land $32,912 Building $59,296 | $1,356,000 (-) Land $484,000 Building $872,000 | |
| 2025 | $7,484.00 (+3.9%) | $84,750 (-9.65%) Land $30,250 Building $54,500 | $1,356,000 (-3.14%) Land $484,000 Building $872,000 |
| 2023 | $7,203.00 (+3.43%) | $93,800 (+14.46%) Land $31,115 Building $62,685 | $1,400,000 (+18.73%) Land $464,400 Building $935,600 |
| 2022 | $6,964.00 | $81,948 Land $28,085 Building $53,863 | $1,179,100 Land $404,100 Building $775,000 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), as of October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130127013, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 29 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 29 in force |
| Nearby Flood Claims | 5 (1995–2013) |
| Claims Outside the SFHA | 3 of 5 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
| Wildfire Risk | Moderate above 40% of the US · lower than 76% of Colorado |
|---|---|
| Wildfire Likelihood | 0.07% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 |
| Xfinity Cable | 2,000 / 250 |
| Live Wire Networks Fixed Wireless | 250 / 100 |
| Lumen Technologies DSL · Fiber in parts of the area | 140 / 20 |
May also be available: AT&T, Verizon.
Based on FCC filings for 615 locations within half a mile of this property.
5G (outdoors only) and 4G LTE
Source: EPA Safe Drinking Water Information System, water system CO0107152, 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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