Boulder County property record for 4052 Welsh Pl, Boulder, CO 80301
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,372 sqft · built 1925 |
| Lot Size | 0.831 acres (36,190 sqft) |
| Owner | Individual Name on File |
| Last Sale | $51,000 (Sep 1989) |
| Tax Bill | $6,281 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-17-3-05-003 |
| Primary APN | 1463-17-3-05-003 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,372 sqft Living Area |
| Gross Area | 1,628 sqft |
| 1st Floor Area | 1,372 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Ranch |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 36,190 sqft (0.831 acres) |
| Porch | Enclosed Porch |
|---|---|
| Porch Area | 256 sqft |
| Shed | 1 Shed |
| Total Buildings | 2 Buildings |
| Heating System | Hot Water |
|---|
| Account Number | R0031013 |
|---|---|
| Street Address | 4052 WELSH PL |
| City | BOULDER |
| State | CO |
| Zip | 80301-1611 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | RR |
| Legal Description | LOT 8 GOULD |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 17 |
| Legal Subdivision | GOULD - BOV |
| Legal Block | 3 |
| Legal Lot Number | 8 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 12701 |
4052 Welsh Pl is owned and occupied by an individual who acquired it in April 2005.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 4052 WELSH PL, BOULDER, CO 80301-1611 |
| 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 | Name on Deed |
|---|---|
| Last Sale | Sep 29, 1989 · Amount on File |
| Deed Sale | Sep 29, 1989 · Amount on File |
| Prior Sale | Oct 19, 1988 |
| Deed Document Number | 19891005877 |
| Last Transfer Date | Apr 8, 2005 |
| Transfer Doc | 0002680458 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 4052 Welsh Pl was $6,281, down 2% from the year before.
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $63,437 (+1.21%) Land $56,617 Building $6,820 | $1,002,900 (-) Land $902,610 Building $100,290 | |
| 2025 | $6,281.00 (-2.04%) | $62,681 Land $56,413 Building $6,268 | $1,002,900 Land $902,610 Building $100,290 |
| 2024 | $6,412.00 (+1.68%) | ||
| 2023 | $6,306.00 (+16.24%) | $73,043 (+32.66%) Land $65,739 Building $7,304 | $1,090,200 (+37.62%) Land $981,180 Building $109,020 |
| 2022 | $5,425.00 | $55,059 Land $49,446 Building $5,613 | $792,210 Land $711,450 Building $80,760 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4052 Welsh Pl in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| 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 4052 Welsh Pl is moderate, ranking above 51% 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 51% of the US · lower than 66% of Colorado |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Direct burnable vegetation |
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 224 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 · Fiber in parts of the area | 140 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Verizon.
5G (outdoors only) and 4G LTE
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