Los Alamos County property record for 100 Obsidian Loop, Los Alamos, NM 87544
| Property Type | Single Family Home |
|---|---|
| Details | 1 bd · 1 ba · 1,956 sqft · built 1964 |
| Lot Size | 0.351 acres (15,300 sqft) |
| Owner | Individual Name on File |
| Last Sale | $1,000 (Nov 2023) |
| Tax Bill | $2,613 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1-035-113-119-499 |
| Primary APN | 1-035-113-119-499 |
|---|---|
| Alternative APN |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1 Bath |
| Stories | 1 Story |
| Building Area | 1,956 sqft Living Area |
| 1st Floor Area | 1,956 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 2002 |
| Exterior Material | Stucco |
| Roof Material | Built-Up Asphalt |
| Lot Area | 15,300 sqft (0.351 acres) |
| Garage Type | Attached |
| Garage Area | 702 sqft |
| Parking Spaces | 2 Parking Spaces |
| Patio Area | 250 sqft |
| Cooling System | None |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R000350 |
|---|---|
| Street Address | 100 OBSIDIAN LOOP |
| City | LOS ALAMOS |
| State | NM |
| Zip | 87544-2529 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | BARRANCA MESA 3 LOT: 054 S: 11 T: 19N R: 6E |
| Legal Range | 06E |
| Legal Township | 19N |
| Legal Section | 11 |
| Legal Subdivision | BARRANCA MESA 3 |
| Legal Lot Number | 54 |
| Jurisdiction | LOS ALAMOS NM |
| Township / Civil Division | LOS ALAMOS |
| Census Block Group | 2 |
| Census Block | 2010 |
| Census Tract | 100 |
100 Obsidian Loop is owned and occupied by an individual who bought it in November 2023.
Source: Los Alamos County records, as of June 30, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 100 OBSIDIAN LOOP, LOS ALAMOS, NM 87544-2529 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 27, 2023 · Amount on File |
| Deed Sale | Nov 27, 2023 · Amount on File |
| Deed Document Number | 2023255888 |
| Prior Transfer Date | Nov 22, 2023 |
| Prior Transfer Doc | 0000255888 |
| Record Updated | Sep 20, 2026 |
The 2026 property tax bill for 100 Obsidian Loop was $2,613.
Source: Los Alamos County assessment roll, as of June 30, 2026
| Type | Name |
|---|---|
| State | New Mexico |
| County | Los Alamos County |
| Unified School District | Los Alamos Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $2,613.00 | $115,460 (+2.99%) Land $34,770 Building $80,690 | $346,390 (+3%) Land $104,320 Building $242,070 |
| 2025 | $2,613.00 | $112,110 Land $33,980 Building $78,130 | $336,310 Land $101,930 Building $234,380 |
| 2023 | $2,488.00 (+2.39%) Additional exemption filed | $105,670 Land $32,700 Building $72,970 | $317,010 Land $98,090 Building $218,920 |
| 2022 | $2,430.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 100 Obsidian Loop in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective July 18, 2011
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 100 Obsidian Loop is moderate, ranking above 52% of the US, with a 0.08% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 52% of the US · lower than 63% of New Mexico |
|---|---|
| Wildfire Likelihood | 0.08% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 | LOS ALAMOS MUNICIPAL WATER SYSTEM serves 25,000 people · EPA ID NM3500115 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Oct 2025 |
| Lead | 1 ppb (2024–2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 161 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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