ADUs are allowed in StoweTypes:DetachedInternal
Types:DetachedInternal
Accessory Dwelling Unit (ADU) Rules for Stowe, VT
Is your property eligible for an ADU?
# of Properties
2,805
Owner-occupied
35%
Avg Home Value
$1,520,836
Median Lot Size
3.00 acres
Avg Income
$103,599
Residential Types:
2,805 housing units
Single Family
62%
2-3 Family
20%
Other
18%
ADU Rules
What can you build in Stowe, VT?
Stowe, VT 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 ADU size: 900 sq ft if principal dwelling is under 1,800 sq ft habitable area; otherwise, up to 50% of principal's habitable area, but not more than 2,500 sq ft or 30% of principal's habitable area, whichever is greater.
Detached ADU Size Limits
- –Maximum size: 900 sq ft if primary dwelling has less than 1,800 sq ft habitable floor area; otherwise, maximum is 50% of habitable floor area, but not to exceed 2,500 sq ft or 30% of habitable floor area, whichever is greater.
Max Units
- –1 ADU per single-family lot (attached or detached); duplex, multifamily, and JADU: none specified.
Parking
- –1 space/ADU on-site; DRB may modify parking per Sec. 15.3 for proximity to transit/public parking, affordable housing, or employer transit programs.
ADU State Law
What can you build in Vermont?
- –Vermont Housing Improvement Program – ADU (VHIP-ADU) Grants up to $50,000 toward creating an ADU in an existing or new structure. Administered by the Department of Housing & Community Development. More info
- –24 V.S.A. § 4412(1)(E)–(F) – Guarantees one by-right ADU.
- –24 V.S.A. § 4303(38)(A)–(B) – Definition of "accessory dwelling unit" (size limit & wastewater clause).
- –24 V.S.A. § 4414(4)(E) – Caps local parking requirements (added by Act 47, 2023).
- –By-right entitlement – Every municipality must permit one ADU on an owner-occupied single-family lot located in a district where residential dwellings are allowed.
- –Structure types – Internal, attached, or detached units are allowed. Conversion of an existing detached non-residential building (e.g., garage) cannot be held to stricter standards than a house conversion.
- –Size cap – The larger of 30 % of the home's habitable floor area or 900 sq ft. (Local bylaws may be less restrictive.)
- –Dimensional & review standards – The ADU (and its host house) is subject only to the same setbacks, height, lot-coverage, and ordinary permit reviews that apply to a single-family home in that district. No extra conditional-use review may be imposed just because it's an ADU.
- –Parking – A municipality may not require more than one space per dwelling in areas served by municipal sewer and water.
- –Wastewater capacity – The lot must have adequate septic or sewer capacity.
- –Minimum number – Statute guarantees at least one ADU; towns may allow additional units or larger sizes if they wish.
- –Hazard overlays – The statewide mandate does not override bylaws adopted for flood-hazard or fluvial-erosion areas (24 V.S.A. § 4424). A town may deny or condition an ADU in those overlays.
- –Short-term rentals – Municipalities may regulate short term rental use of ADUs.
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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ADU rules in other Vermont municipalities
Rules change at the town line. Check the municipality your property is actually in.
Lamoille County