Gasburg

Brunswick County, a rural southside-Virginia county along the North Carolina border south of Petersburg, regulates accessory dwelling units through its County Code zoning ordinance, administered by the Brunswick County Planning and Zoning Department under the authority of the Brunswick County Board of Supervisors. Virginia is a Dillon Rule state and the General Assembly has not enacted any statewide ADU preemption; Brunswick County's authority to regulate or prohibit ADUs derives solely from the general zoning enabling statute at Va. Code § 15.2-2280 and the ordinance-content provisions of § 15.2-2286. The county zoning ordinance establishes use districts (Agricultural A-1 / A-2, Residential R-1 / R-2, Commercial B-1 / B-2, Industrial M-1 / M-2, and overlay districts including a Mixed Use district along certain corridors) reflecting Brunswick's agricultural and forestry economy plus the I-85 corridor's commercial development. A second dwelling on a single residential parcel is not a permitted-by-right use in the standard residential districts; ADU-style second dwellings are typically pursued through (a) family/kinship-dwelling provisions where the second dwelling is occupied by a family member, (b) a discretionary Special Use Permit approved by the Board of Supervisors following Planning Commission recommendation, or (c) minor subdivision creating a separate buildable lot. The county does not have a standalone ministerial ADU ordinance. The Town of Lawrenceville (the county seat, home to historic Saint Paul's College), the Town of Alberta, and the Town of Brodnax are incorporated towns within the county with their own zoning ordinances; parcels within town corporate limits are subject to those town ordinances rather than the county ordinance.

• Brunswick County Code — Zoning Ordinance
• Brunswick County Planning and Zoning Department
• Brunswick County Board of Supervisors — adopting body for zoning ordinance amendments and Special Use Permits
• Brunswick County Planning Commission

State-floor overlay: Virginia has not enacted any statewide ADU preemption statute. Virginia is a Dillon Rule state (see Commonwealth v. County Bd. of Arlington County, 217 Va. 558 (1977)); localities have only those powers expressly granted by the General Assembly. The general zoning enabling statute at Va. Code § 15.2-2280 grants counties broad authority to regulate land use, and § 15.2-2286 enumerates the specific ordinance provisions that may be included. Neither statute, nor any section of Title 15.2 Chapter 22 Article 7, mandates that a locality permit ADUs, requires ministerial review of ADU applications, caps parking requirements, caps fees, or voids owner-occupancy requirements. Brunswick County is therefore free to permit, restrict, or prohibit second dwellings under its zoning ordinance.

Brunswick County administers or is subject to several overlay regimes that materially affect ADU siting on parcels: (1) FEMA Special Flood Hazard Areas along the Meherrin River, the Nottoway River, and various tributaries, with NFIP floodplain regulations administered through the county's floodplain ordinance; (2) Chesapeake Bay Preservation Act applicability — Brunswick County is NOT in the Tidewater area covered by the Chesapeake Bay Preservation Act (Va. Code § 62.1-44.15:67 et seq.), so Resource Protection Areas (RPAs) and Resource Management Areas (RMAs) do not apply; the county does drain to the Chowan River basin (Meherrin and Nottoway combine in North Carolina) which is part of the Albemarle-Pamlico estuary system, with state DEQ stormwater and erosion-and-sediment-control regulations applicable; (3) Land use taxation (use-value assessment) under Va. Code § 58.1-3230 et seq. is widely used for agricultural and forestal land in Brunswick County given its rural-forestry economy; addition of a non-agricultural ADU may trigger partial reclassification and a five-year roll-back tax under § 58.1-3237; (4) Agricultural and Forestal Districts under Va. Code § 15.2-4300 et seq. — common in Brunswick given its forestry and agricultural base; (5) Wildfire risk in heavily forested pine-plantation areas tracked by Virginia Department of Forestry; (6) the Virginia Department of Corrections operates Lawrenceville Correctional Center in the county, and certain corridors near correctional facilities may have associated planning considerations; (7) the county does not have a separate historic district overlay covering large portions of the unincorporated area, though individual properties (including in the historic Saint Paul's College district in Lawrenceville) may be listed on the Virginia Landmarks Register or National Register.

• FEMA National Flood Insurance Program — Special Flood Hazard Areas — Brunswick County participates in the National Flood Insurance Program and administers a county floodplain ordinance satisfying the NFIP minimum standards. Principal Special Flood Hazard Area (SFHA) extents in the county are along the Meherrin River, the Nottoway River, and various tributary streams. An ADU in an SFHA must comply with NFIP elevation requirements (lowest finished floor at or above Base Flood Elevation plus any county freeboard), flood vent requirements on enclosed areas below BFE, and post-construction Elevation Certificate filing.
• Land use taxation (use-value assessment) and roll-back tax — Brunswick County participates in Virginia's land-use taxation program. When all or part of an enrolled agricultural, horticultural, forestal, or open-space parcel is converted to a non-qualifying use — for example, by constructing a non-agricultural rental ADU on previously enrolled land — the converted acreage is reassessed at fair market value and a roll-back tax is owed for the current year and the five preceding years. ADU planning on land-use parcels must include a calculation of the potential roll-back exposure, which can be substantial in Brunswick given its rural forestry and agricultural base.
• Virginia Agricultural and Forestal Districts (local option under state law) — Brunswick County has established Agricultural and Forestal Districts under the state AFD Act. Enrollment is voluntary; participating landowners commit to keeping land in agricultural or forestal use for a period (typically 4-10 years) in exchange for use-value assessment and limited protection from certain governmental actions.
• Virginia Stormwater Management Program (VSMP) and Erosion & Sediment Control — Land-disturbing activity exceeding state-defined thresholds requires a VSMP permit and an ESC plan. A typical detached ADU site disturbs less than 10,000 square feet but cumulative disturbance on the parcel should be tracked. The county is the local administering authority for VSMP. Single-family residential exemptions apply in some cases.
• Virginia Department of Forestry wildfire risk — Brunswick County's significant pine-plantation forestry creates elevated wildfire exposure in some areas. Virginia does not have a California-style Very High Fire Hazard Severity Zone overlay; the Virginia Department of Forestry promotes defensible-space practices on an advisory basis.

The Brunswick County Planning and Zoning Department (zoning administration) and the county Building Inspections office (building permits and inspections) together serve as the permitting authority for parcels within the unincorporated county (i.e., parcels outside the corporate limits of the towns of Lawrenceville, Alberta, and Brodnax). Brunswick County comprises approximately 569 square miles of rural Piedmont/Coastal Plain transitional terrain in southside Virginia, drained by the Meherrin River (the southern border with North Carolina is partly the river boundary in adjacent counties), Nottoway River, and various tributaries. Interstate 85 (Petersburg to Raleigh-Durham) traverses the county. The 2020 Census population was approximately 16,000. The county is heavily forested with significant pine plantation forestry and remains a major timber-producing area. For an ADU-style project in the unincorporated county, the typical sequence is: (a) zoning determination from Planning and Zoning; (b) if a Special Use Permit is required, application to Planning Commission and Board of Supervisors; (c) building permit application to the county building official under the Virginia Uniform Statewide Building Code; (d) inspections through construction; (e) certificate of occupancy. Most parcels are not served by public utilities and require well and septic approval through the Virginia Department of Health (Southside Health District).