Montgomery County, MD Right to Farm: Agricultural Zoning Protection (2026)
Key Facts
- Zone
- Agricultural Reserve (AR)
- Preferred use
- Agriculture, any time
- Machinery
- Farm equipment use protected
- Base density
- 1 dwelling per 25 acres
Summary
The AR zone makes farming the preferred use on roughly a third of the county, protecting farm operations and machinery from being restricted by neighboring uses.
The intent of the AR zone is to promote agriculture as the primary land use in areas of the County designated for agricultural preservation in the general plan, the Functional Master Plan for Preservation of Agriculture and Rural Open Space, and other current or future master plans... Agriculture is the preferred use in the AR zone. All agricultural operations are permitted at any time, including the operation of farm machinery. An agricultural use cannot be restricted on the grounds that it interferes with other uses permitted in the zone.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-90: Montgomery County Code contains legislation effective through May 7, 2026 | Zoning Updated Effective: April 13, 2026 | COMCOR Regulations effective as of July 1, 2026).
Full Breakdown
Montgomery County's Agricultural Reserve (AR) zone, created under the Zoning Ordinance, exists to keep agriculture the primary land use in areas designated for farmland preservation. Section 4.2.1.A.2 makes agriculture the preferred use in the AR zone: all farming operations, including running farm machinery, are permitted at any time, and an agricultural use cannot be restricted just because it interferes with other permitted uses on nearby land. Non-agricultural uses in the AR zone instead face extra use standards or must go through conditional-use approval. The zone also runs a transfer-of-development-rights program letting AR landowners sell development rights to designated receiving areas rather than subdivide farmland.
Violations & Fines
Zoning enforcement runs through the Department of Permitting Services; using AR land for a non-agricultural use without meeting the added standards or getting conditional-use approval can draw a zoning violation notice and civil citation under Chapter 59's enforcement provisions.
Frequently Asked Questions
Can a neighbor force a farm to stop running machinery?
Does the AR zone cover the whole county?
Sources & Official References
Other rules in Montgomery County
Compare Montgomery County to another location·View the Maryland right to farm overview
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