Bolthole Index

Montgomery County, Maryland

Zoning, building permits and septic rules in Town of Barnesville, Maryland

Town of Barnesville is a town in Montgomery County, Maryland. Town of Barnesville adopts its own zoning, so inside its limits Town of Barnesville’s rules apply, not the county’s. 7 rules below are quoted from official sources and independently re-checked, most recently on November 3, 2026. Rules for unincorporated land are on the Montgomery County page.

Answers from the rulebook for Town of Barnesville

Town of Barnesville’s own rules

  • Building permitRequired

    All new construction, renovations, additions and accessory buildings inside Barnesville town.

    • Permits are needed from both Montgomery County Department of Permitting Services and the town, per the FAQ.
    • Construction may proceed after the permit is issued.
    “yes, you need to get permits both from montgomery county department of permitting services and from the town.”
  • Local zoningPresent

    Land inside Barnesville town (Montgomery County, MD) limits; the town administers its own zoning ordinance.

    • The town FAQ says its development standards are in the zoning ordinance and that the ordinance should be reviewed carefully; the ordinance text itself was not retrieved in this research.
    “barnesville's development standards are shown in the zoning ordinance. in general, we allow single-family houses and accessory buildings, such as barns and garages.”
  • Minimum lot sizeSpecified

    Building lot for a new house inside Barnesville town; the FAQ does not name a zoning district, so this is not a district-by-district figure.

    • The FAQ says some older houses sit on lots under four acres; the four-acre standard is described for new houses.
    • The FAQ says the standard matches Montgomery County and Maryland water and sewer approval rules, which the ordinance itself was not checked for.

    minimum building lot area for a new house: >= 4 acres (Older lots under four acres may exist; the standard is described as applying to new houses.)

    “a building lot for a new house must be at least four acres in size. this is defined in barnesville's zoning ordinance.”
  • Building heightSpecified

    Houses inside Barnesville town; the FAQ gives this as a general example, not tied to a named district.

    • The FAQ introduces the limit with 'e.g.', so it is an illustrative statement; the zoning ordinance height table was not retrieved.

    maximum house height: <= 40 feet

    “there are limitations on size - e.g., your house cannot be more than 40 feet tall.”
  • Agricultural exemptionConditional

    Land divided or combined in Barnesville town for exclusively agricultural use; this is a subdivision-process exemption, not a tax or building-code exemption.

    • Applies only where the land is used exclusively for agriculture, per the FAQ.
    • Other exceptions are listed in the subdivision ordinance and were not retrieved.
    “if land is being divided or combined for exclusively agricultural use, you are not required to go through a formal subdivision process.”
  • Subdividing landRegulated (with conditions)

    Division or combination of land inside Barnesville town, under the town subdivision ordinance.

    • Planning commission must declare a lot or parcel eligible for development before a building permit is issued.
    • Some divisions are exempt, including land divided or combined for exclusively agricultural use; other exceptions are listed in the ordinance and were not retrieved.
    “the subdivision ordinance says that the planning commission must declare any lot or parcel eligible for development before the building permit can be issued.”
  • Permit processPartial

    Building permit application for work inside Barnesville town.

    • The FAQ says the permit form is available from the town clerk or as a download, and that county and town permits are both needed; the full sequence was not found.
    “you may get a copy from the town clerk, or click here to download.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Town of Barnesville or Montgomery County directly.

  • Owner-builder exemption — Owner-builder permit exemption inside Barnesville town.
  • Building code adopted — Building code adopted for construction inside Barnesville town.
  • Inspections — Building inspections for work inside Barnesville town.
  • Certificate of occupancy — Certificates of occupancy inside Barnesville town.
  • Zoning districts — Zoning district map and list for Barnesville town.
18 more unanswered
  • Minimum dwelling size
  • Setbacks
  • Lot coverage
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Town of Barnesville publishes no rule on the point, not that none exists. Montgomery County’s page lists the county offices to call.

← All of Montgomery County: county rules, score and offices