Boulder County property record for 4035 Nassau Pl, Boulder, CO 80301
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.5 ba · 3,601 sqft · built 1999 |
| Lot Size | 0.238 acres (10,375 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $790,000 (Mar 2015) |
| Tax Bill | $9,695 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-17-4-27-001 |
| Primary APN | 1463-17-4-27-001 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 3,601 sqft Living Area |
| Gross Area | 4,178 sqft |
| 1st Floor Area | 1,367 sqft |
| Upper Floors Area | 1,004 sqft |
| Basement Area | 1,367 sqft |
| Finished Basement | 1,230 sqft |
| Unfinished Basement | 137 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1999 |
|---|---|
| Effective Year Built | Effective 1999 |
| Exterior Material | Brick Veneer |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 10,375 sqft (0.238 acres) |
| Garage Type | Attached |
| Garage Area | 440 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Porch Area | 86 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0116624 |
|---|---|
| Street Address | 4035 NASSAU PL |
| City | BOULDER |
| State | CO |
| Zip | 80301-6029 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 22 BLK 1 FOUR MILE CREEK FLG 1 SPLIT TO ID 29520/DEED 11/95 SPLIT FROM ID 29520/#1705740 |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 17 |
| Legal Subdivision | FOUR MILE CREEK FLG 1 - BO |
| Legal Block | 1 |
| Legal Lot Number | 22 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3020 |
| Census Tract | 12701 |
4035 Nassau Pl is owned and occupied by two individuals who acquired it in July 2015.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 4035 NASSAU PL, BOULDER, CO 80301-6029 |
| Occupancy | Owner Occupied |
| 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 | 2 Names on Deed |
|---|---|
| Last Sale | Mar 18, 2015 · Amount on File |
| Deed Sale | Mar 18, 2015 · Amount on File |
| Prior Sale | Sep 15, 1999 · Amount on File |
| Deed Document Number | 20153433731 |
| Last Transfer Date | Jul 15, 2015 |
| Transfer Doc | 0003461208 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4035 Nassau Pl was $9,695.
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 | $105,876 (+4.12%) Land $34,830 Building $71,046 | $1,627,000 (-) Land $582,200 Building $1,044,800 | |
| 2025 | $9,695.00 | $101,688 Land $36,388 Building $65,300 | $1,627,000 Land $582,200 Building $1,044,800 |
| 2023 | $8,763.00 (+10.62%) | $105,163 (+23.26%) Land $37,426 Building $67,737 | $1,569,600 (+27.86%) Land $558,600 Building $1,011,000 |
| 2022 | $7,922.00 | $85,318 Land $33,784 Building $51,534 | $1,227,600 Land $486,100 Building $741,500 |
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 4035 Nassau Pl in Zone X, an area of minimal flood risk, though there have been 5 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 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 |
|
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 4035 Nassau Pl is moderate, ranking above 53% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 53% of the US · lower than 62% of Colorado |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect within 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 190 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| Xfinity Cable | 2,000 / 250 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| CenturyLink DSL | 140 / 20 |
May also be available: AT&T, T-Mobile, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures