Piney River

Nelson County regulates land use - and therefore accessory dwelling units - through its county Zoning Ordinance, administered by the Nelson County Department of Planning and Zoning under the authority of the Nelson County Board of Supervisors. Virginia is a Dillon Rule state (Commonwealth v. County Bd. of Arlington County, 217 Va. 558 (1977)); the General Assembly has not enacted any statewide ADU preemption statute, so Nelson County's authority to regulate, condition, or prohibit second dwellings on a single parcel derives entirely from the general zoning enabling statute at Va. Code section 15.2-2280 and the ordinance-content provisions of section 15.2-2286. A distinctive feature of Nelson County compared to most other Virginia counties: Nelson has no incorporated municipalities. The county seat at Lovingston is an unincorporated census-designated place; the entire county - including the named communities of Nellysford, Schuyler, Shipman, Tyro, Roseland, Afton, Massies Mill, Faber, Arrington, and Wintergreen - is subject to the Nelson County zoning ordinance. This is unusual in Virginia and means there is no parallel town-level permit counter to disambiguate against. The county zoning ordinance is codified in the Nelson County Code and organized by use districts (Agricultural A-1, Residential R-1 / R-2, Business B-1, Industrial M-1 / M-2, Planned Unit Development for Wintergreen, and several overlay districts). In the standard residential and agricultural districts, a single dwelling per lot is the baseline; a true detached second dwelling on a single parcel is not a permitted-by-right use in most districts and typically requires one of three pathways: (a) a family-member or kinship-dwelling qualification where the ordinance allows it, (b) a Special Use Permit approved by the Board of Supervisors following Planning Commission recommendation, or (c) minor subdivision to create a separate buildable lot. Nelson County does not have a standalone ministerial ADU ordinance of the California / Oregon / Washington type. A homeowner cannot rely on an 'ADU by right' framework; each project is subject to zoning-district analysis and, for most non-kin rental scenarios, a discretionary Special Use Permit process. The Wintergreen Resort area in the northwestern part of the county is governed by a Planned Unit Development zoning regime and by extensive private covenants enforced by Wintergreen Property Owners Association; ADU-style second dwellings inside Wintergreen are constrained by both the county PUD ordinance and the private POA covenants, which together typically prohibit unrelated detached rental units.

• Nelson County Code - Zoning Ordinance (Chapter 22 Land Development Regulations)
• Nelson County Department of Planning and Zoning
• Nelson County Board of Supervisors - adopting body for zoning ordinance amendments and Special Use Permits
• Nelson County Planning Commission
• Virginia Code Title 15.2, Chapter 22, Article 7 - Zoning

State-floor overlay: Virginia has not enacted any statewide ADU preemption statute. Virginia is a Dillon Rule state (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 section 15.2-2280 grants counties, cities, and towns broad authority to regulate land use, and section 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. Nelson County is therefore free to permit, condition, or prohibit second dwellings under its zoning ordinance within the ordinary constitutional limits on land-use regulation. ADU preemption bills have been introduced in the Virginia General Assembly in multiple recent sessions (2022-2025) without enactment; the statewide regulatory picture at the county level is unchanged as of 2026-05-12.

Nelson County administers or is subject to several overlay regimes that materially affect ADU siting: (1) FEMA Special Flood Hazard Areas along the Tye River, the Piney River, the Rockfish River, the Buffalo River, Davis Creek, and the James River (the eastern boundary), administered through the county floodplain ordinance satisfying NFIP minimum standards - the SFHA picture in Nelson is shaped by the catastrophic 1969 Hurricane Camille storm event, which caused walls of water and debris flows down the Blue Ridge escarpment and killed 124 people in the county; (2) Steep Slope Overlay - Nelson County's zoning ordinance includes a steep-slope overlay applicable to the Blue Ridge foothills and mountainside terrain, intended to address erosion, landslide, and debris-flow risk explicitly informed by the Camille experience; (3) Blue Ridge Parkway corridor and George Washington National Forest adjacency along the western boundary - federal scenic-corridor and management considerations affect parcels along the Parkway; (4) Wintergreen Resort Planned Unit Development - a comprehensive overlay covering the Wintergreen Resort area in the northwestern part of the county that establishes density, setback, and architectural standards distinct from the rest of the county; (5) Chesapeake Bay Preservation Act applicability - Nelson County is NOT in the Tidewater area covered by the Chesapeake Bay Preservation Act (Va. Code section 62.1-44.15:67 et seq.), so Resource Protection Areas (RPAs) and Resource Management Areas (RMAs) do not apply; (6) Agricultural and Forestal Districts (AFDs) under Va. Code section 15.2-4300 et seq., which provide participating landowners use-value taxation and subdivision-deferral protections; (7) wildfire risk along the Blue Ridge escarpment tracked by the Virginia Department of Forestry, but Virginia does not have a California-style Very High Fire Hazard Severity Zone regulatory overlay with mandatory ignition-resistant-construction requirements. Nelson County does not maintain a countywide historic-district zoning overlay, though Schuyler (the real-world setting of Earl Hamner Jr.'s 'The Waltons' and home of the Walton's Mountain Museum), portions of Lovingston, and individual historic structures may be listed on the Virginia Landmarks Register or National Register of Historic Places.

• FEMA National Flood Insurance Program - Special Flood Hazard Areas — 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, anchoring requirements, and post-construction Elevation Certificate filing. Owners should confirm current-effective FIRM panel at the FEMA Map Service Center before design. The Hurricane Camille event of August 19-20, 1969 - which delivered up to 27 inches of rain to Nelson County in a few hours and triggered massive debris flows down mountainside drainages - is not reflected in modeled BFEs in the conventional way, but the local culture around floodplain ADUs is uniquely cautious as a result. The Tye River corridor, Davis Creek, and Massies Mill area in particular carry heightened practical scrutiny beyond the strict FIRM extents.
• Nelson County Steep Slope Overlay District — An ADU sited on a steep-slope parcel triggers the overlay's requirements for soil and slope analysis, erosion-and-sediment-control planning, and (depending on the slope tier) potentially geotechnical evaluation. The overlay is one of the more practically consequential overlays for ADU projects in the mountainside portions of the county, because terrain alone may make a detached ADU infeasible or substantially more expensive than on a flat parcel. The Camille experience is the historical reason the overlay exists; debris flows in 1969 destroyed entire homesteads on slopes that had previously been considered safe to build on.
• Wintergreen Resort Planned Unit Development — Wintergreen ADU projects are subject to BOTH the county PUD overlay AND the private covenants of Wintergreen Property Owners Association, the latter enforced by the WPOA Architectural Review Board. Typical practical outcome: a detached unrelated-occupant rental unit is effectively prohibited by the combination of the PUD's density / lot-coverage limits and the POA's covenant on short-term rental and density. Owners of Wintergreen parcels should consult both the county PUD provisions and the WPOA covenants before assuming any ADU pathway exists. The intersection of public zoning and private covenant law is more constraining at Wintergreen than anywhere else in Nelson County.
• Virginia Agricultural and Forestal Districts — 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 that would disrupt agricultural use. An ADU on an AFD-enrolled parcel is generally permitted if it is an accessory use to continued agricultural operation (for example, a farm-labor dwelling or family-kinship dwelling), but non-agricultural commercial-rental ADUs may conflict with AFD purposes and trigger AFD committee review. Owners should consult the Nelson County AFD Advisory Committee and the zoning administrator before assuming ADU compatibility. Nelson's apple-and-vineyard agricultural economy makes AFD enrollment more common than in many neighboring counties.
• Blue Ridge Parkway and George Washington National Forest adjacency — Federal regulation applies to activities within the federal boundary, not to private parcels outside it. However, individual deed restrictions or scenic easements may apply to specific parcels along the corridor, and the county has historically scrutinized highly visible development on parcels abutting the Parkway. Owners of parcels adjacent to the Parkway or the National Forest should check the zoning district in effect for their specific parcel and any recorded scenic easements. Access permits for driveway cuts crossing Forest Service land require U.S. Forest Service approval. The Rockfish Gap entrance to the Parkway at the Augusta / Nelson / Albemarle tri-county point is particularly visible and tends to attract higher scrutiny.
• Virginia Department of Forestry wildfire risk (advisory) - Blue Ridge escarpment — Unlike California, Virginia does not have a statewide Very High Fire Hazard Severity Zone overlay that mandates WUI-rated construction materials on a per-parcel basis. The Virginia Department of Forestry publishes wildfire risk assessments and promotes defensible-space practices, but enforcement is advisory rather than regulatory. Owners in wildfire-exposed Nelson County locations - particularly along the western mountainous edge and the Wintergreen / Stoney Creek wooded slopes - should follow best practices (defensible space, ignition-resistant materials, adequate driveway access for fire apparatus) but face no locality-imposed WUI construction overlay analogous to California Chapter 7A.

The Nelson County Department of Planning and Zoning is the permitting authority for zoning determinations, Special Use Permits, subdivisions, and zoning-related approvals; building permits are issued by the Nelson County Building Inspections office. Because Nelson County contains no incorporated municipalities, these county offices serve the entire county - approximately 472 square miles of central Virginia Piedmont and Blue Ridge foothill terrain. The county is bordered to the north by Albemarle County, to the east by the James River (the boundary with Buckingham County), to the southeast by Appomattox County, to the south by Amherst County, to the southwest by Rockbridge County, and to the west by the Blue Ridge Mountain crest forming the boundary with Augusta County. The Blue Ridge Parkway runs along the western county boundary, and the George Washington National Forest Pedlar Ranger District covers a substantial portion of the western mountainous county. Major drainage runs from the Blue Ridge crest east through the Rockfish River, the Tye River, the Piney River, and the Hat Creek / Buffalo River watersheds to the James River. Nelson County is famously the site of the 1969 Hurricane Camille disaster, which killed 124 people in the county and reshaped local awareness of mountainside flood, debris-flow, and landslide risk; the Tye River, Davis Creek, and Massies Mill / Lovingston area were among the worst-affected and the Camille legacy continues to influence floodplain and steep-slope regulation. For an ADU-style project on a Nelson County parcel, the typical sequence is: (a) zoning determination from the Planning and Zoning Department (permitted by right as a family / kinship dwelling, permitted via Special Use Permit, or prohibited); (b) if SUP required, application to the Planning Commission and Board of Supervisors; (c) Virginia Department of Health Thomas Jefferson Health District well / septic evaluation (for parcels not served by central utilities, which is most of the county); (d) building permit application to the Nelson County Building Inspections office; (e) inspections through construction; (f) certificate of occupancy. Inside the Wintergreen Resort PUD, the additional approval of the Wintergreen Property Owners Association Architectural Review Board is also required by private covenant and is typically a more demanding design-review process than the county zoning review.