

ADUs are allowed in Los AlamosTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Los Alamos, NM
Is your property eligible for an ADU?
# of Parcels
5,872
Zoning districts
24
Avg Parcel Value
$479,942
Median Parcel Size
0.24 acres
Zoning Districts:
5,817 parcels · 24 districts
SFR-2
18%(1,036)
SFR-4
18%(1,030)
RM-1
17%(1,015)
MFR-M
10%(559)
Other
37%(2,177)
ADU Rules
What can you build in Los Alamos, NM?
Los Alamos, NM follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.
Eligibility
- –Internal / Attached ADU: By Right
- –Detached ADU: By Right
Interior / Attached ADU Size Limits
- –Maximum size of 800 sq ft
- –Maximum size no larger than the primary dwelling’s gross floor area
Detached ADU Size Limits
- –Maximum ADU size of 800 sq ft, and not more than the primary dwelling’s gross floor area
Max Units
- –1 ADU per lot (attached or detached)
- –SFR-1, SFR-2, SFR-3: 1 per lot
- –SFR-4, SFR-5: 0 per lot
Owner Occupancy
- –Owner-occupancy not required.
What's allowed on your lot?
These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.
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Learn the key rules and size limits for ADUs