Accessory Structures in Montgomery County, VA (2026)
2 rules for unincorporated Montgomery County, Virginia.
Verified from official government sources
ADU Rules
In Montgomery County outside Blacksburg and Christiansburg, accessory dwellings are allowed as rental units in the A-1, C-1, R-Rural, R-1, R-2 and R-3 districts with a zoning permit, but the county sizes them to the parcel: a detached unit in A-1 or C-1 needs at least five acres, while a detached unit in the rural or residential districts needs only one acre.
Montgomery County VA Accessory Dwelling Zoning Rules
Some RestrictionsMontgomery County Code § 10-41(2)
Accessory dwellings are permitted as rental units for tenants as an accessory use in the A-1 Agricultural District, C-1 Conservation District, R-Rural Residential, R-1 Residential District, R-2 Residential and R-3 Residential Districts, subject to all applicable district regulations of this chapter, the issuance of a zoning permit and the following additional restrictions: ... The accessory dwe...
Shed & Carport Rules
In Montgomery County outside Blacksburg and Christiansburg, a small shed, pet house or pen built with a single-family home is capped at 150 square feet and 12 feet in height under the zoning ordinance. It must sit at least 50 feet from any street right-of-way at the front of the lot and 20 feet at the rear.
Montgomery County Shed Size and Setback Rules
Some RestrictionsMontgomery County Code § 10-41
In conjunction with single-family dwellings only, small sheds, pet houses and pens, provided that such structures: Are not in excess of one hundred fifty (150) square feet in floor area. Not in excess of twelve (12) feet in height. At least fifty (50) feet from any street right-of-way or private access easement at the front of the lot. At least twenty (20) feet from any street right-of-way or p...
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