ADU Pass
Bergton
ADU Pass helps homeowners in Bergton, Rockingham County, Virginia navigate the permit paperwork for building an accessory dwelling unit. This area covers 1 ZIP code.
Map
ADU details
ADU legality: allowed-with-restrictions
Bergton ADUs follow Rockingham County A-1/A-2 accessory-use provisions with VDH onsite-sewage sign-off and county Floodplain Overlay review on Crab Run / German River parcels. The combination of large rural lots and onsite well/septic infrastructure makes detached ADU pathways straightforward where soil conditions allow. SB 531 preempts effective July 1, 2027 with a $500 fee cap.
Cost scenarios
| Scenario | Sq ft | Permit | Build | Total |
|---|---|---|---|---|
| minimum | 200 | $1,620 | $50,000 | $51,620 |
| 600 | 600 | $1,620 | $150,000 | $151,620 |
| midpoint | 700 | $1,620 | $175,000 | $176,620 |
| 1000 | 1,000 | $1,620 | $250,000 | $251,620 |
| maximum | 1,200 | $1,620 | $300,000 | $301,620 |
Fee breakdown (as of 2026-05)
Permitting process
Viability (permitted uses)
- Long-term rental: yes Long-term rental is permitted; Bergton's small year-round population and limited rental market make this a secondary use case relative to STR and multi-generational owner use.
- Short-term rental: with-restrictions Bergton STR demand is anchored by George Washington National Forest day-use, North Mountain hunting and fishing access, and proximity to the Brocks Gap / Trout Run trout fishery. Rockingham County STR classification and Va. Code § 58.1-3819 transient-occupancy tax apply.
- Office rental: with-restrictions Home Occupation permit applies; SUP for non-resident-employee detached office configurations.
- Home office: yes Home occupation is a permitted accessory use in A-1/A-2.
- Studio / workshop: yes Personal studio is a permitted accessory use; Bergton-area artisan cabin / hunting-camp configurations are common.
- Agriculture: yes Bergton's A-1 and A-2 districts are explicitly agricultural; accessory dwellings supporting farm-labor housing or multi-generational farm operations are administratively permitted.
- Relative support: yes Multi-generational accessory dwelling is the dominant Bergton use case. The Brocks Gap area has multi-century family-land tenure patterns; ADUs frequently support elderly parents or returning adult children on family acreage.
Incentives
Contacts
Utilities
- Water: Private well (100% of Bergton parcels). No public water service reaches Brocks Gap. · 30d connect · $12,000
- Sewer: Private septic (100% of Bergton parcels). No public sewer service. Drainfield design must be approved by VDH Central Shenandoah Health District. Karst-influenced soil in the North Mountain foothills constrains pathway on some parcels. · 90d connect · $18,000
- Electric: Shenandoah Valley Electric Cooperative (SVEC); no Dominion Energy service in Bergton. · 21d connect · $2,400
- Gas: Bottled propane (Tri-County Propane, Suburban Propane); no natural gas distribution reaches Brocks Gap. · 10d connect · $1,850
Property values & taxes
Construction timeline
Realistic total: best 8mo · typical 11mo · worst 19mo
Modular pathway inspectors are occasional with modular
Financing
State ADU loans:
Insurance impact
HOA prevalence & preemption
Virginia has no HOA-ADU preemption. Bergton's A-1/A-2 acreage is overwhelmingly covenant-free; HOA penetration is near-zero outside of a handful of small post-1990 lot-split developments.
Regulatory overlays (3)
- flood-zone
Bergton parcels along Crab Run, German River, and unnamed tributaries are in mapped Zone AE. ADU finished-floor elevation must clear Base Flood Elevation plus Virginia freeboard; Substantial Improvement (50% threshold) review on SFHA parcels. (map) - wui-fire-zone
Bergton's western and northern parcels adjoin George Washington National Forest. Virginia Department of Forestry classifies the Shenandoah Valley as low wildfire exposure overall, but parcels in the immediate forest-interface should plan defensible-space and IRC R327 wildfire-resistive construction practices on a voluntary basis. Chapter 7A does not apply (California-specific). (map) - other
Bergton is 100% well-and-septic. ADU permitting requires VDH Construction Permit; karst-influenced soil in North Mountain foothills means percolation rates vary widely and some parcels cannot support a second drainfield. Site-specific soil evaluation by a Virginia-certified Onsite Soil Evaluator is essential before pricing. (map)
Technical envelope (climate & building code)
Climate & energy code
Building code
Amendments:
- Amendment
- Amendment
- Amendment
- Amendment
Contractor market (aggregate)
Legal history (timeline)
Current ordinance: Rockingham County Zoning Ordinance (Chapter 17), adopted 1970-01-01, last amended 2024-01-01
- 1949-01-01 — Shenandoah Valley Electric Cooperative extends rural electric service to Brocks Gap / Bergton (infrastructure)
SVEC, the rural electric cooperative chartered under federal Rural Electrification Administration funding, completed distribution buildout into Bergton and the Brocks Gap area in the late 1940s. SVEC remains the sole electric provider; there is no Dominion Energy service in Bergton.
Effect: ADU electrical service in Bergton is exclusively through SVEC. SVEC's residential service-line allowances and new-meter timing govern, with typical 21-day lead time for new meter sets where a transformer pole is in place. - 1985-11-04 — November 1985 Election Day Flood - German River and North Fork Shenandoah (natural-event)
The November 1985 flood inundated the Brocks Gap / Crab Run / German River corridor, with measured stage at Cootes Store the highest in 75 years. Several Bergton-area homes along Route 820 were lost. The post-event FEMA Flood Insurance Rate Map remapping captured the German River and Crab Run floodplain.
Effect: Bergton parcels along Crab Run, German River, and unnamed tributaries are in mapped Zone AE; ADU finished-floor elevation must clear Base Flood Elevation plus Virginia freeboard, and the Substantial Improvement (50% threshold) test applies to retrofits of existing structures. - 2026-04-14 — Virginia SB 531 signed into law (statewide ADU preemption) (state-statute)
SB 531 (2026 General Assembly Regular Session) requires every Virginia locality, effective July 1, 2027, to permit at least one ADU by right on any parcel with an existing single-family dwelling, caps total local permit and zoning fees at $500, and preempts owner-occupancy mandates. Ordinances adopted before January 1, 2026 are grandfathered.
Effect: Rockingham County's A-1/A-2 by-right administrative pathway, which already governs Bergton, will be at least as permissive as SB 531 effective July 1, 2027; the fee cap will reduce the county permit-bundle cost. VDH onsite-sewage fees and Floodplain Development Permit fees are not preempted.
Known issues (3)
- fee-schedule-pending — Approximately $1,120 in permit-fee savings on each by-right ADU built after July 1, 2027 on a non-floodplain Bergton parcel; VDH and Floodplain fees persist.
- other — Approximately 15-25% of Bergton-area parcels may be infeasible for detached ADU without major septic upgrade; some parcels require holding-tank pumping arrangements or alternative drainfield technology.
- other — Tenant pool and STR appeal are narrowed; STR demand favors hunting / fishing / hiking visitors comfortable with off-grid-adjacent conditions.
Rockingham County — county ADU rules and overlays
County ADU ordinance
Rockingham County regulates accessory dwelling units primarily through accessory-use provisions in its zoning ordinance rather than through a standalone ADU chapter. The county's agricultural (A-1, A-2) and residential (R-1, R-2, RG-1) districts permit one accessory dwelling unit on a qualifying lot subject to minimum lot area, setback, and public-health requirements (well and septic sizing), with the ADU treated as subordinate to the principal dwelling. The county does not operate a Northern-Virginia-style ADU ordinance with an explicit size cap; instead, ADU feasibility is driven primarily by (1) the district's minimum lot area, (2) onsite-sewage capacity under Virginia Department of Health (VDH Central Shenandoah Health District) rules, and (3) the Uniform Statewide Building Code's residential-occupancy requirements. ADU feasibility is materially higher on rural A-1 and A-2 acreage than in the small R-1 residential subdivisions near Harrisonburg, where setback and lot-area minimums often require a Special Use Permit for a second dwelling. Short-term rental is regulated separately under the county's zoning ordinance with a distinct STR classification. Confirm the current accessory-dwelling section text and any by-right vs. Special Use Permit classification with the Rockingham County Department of Community Development before pricing a project.
County regulatory overlays
Rockingham County administers three overlay regimes that bear materially on ADU projects: (1) a Floodplain Overlay District tied to FEMA Special Flood Hazard Areas along the North River, South Fork Shenandoah River, Dry River, Smith Creek, Cooks Creek, and other Shenandoah Valley drainages; (2) Agricultural-Preservation and rural-preservation overlays reflecting the county's strong poultry and livestock economy and the visual character of US 33, US 11, and I-81 corridors plus the Skyline Drive / Shenandoah National Park and George Washington National Forest gateway routes; and (3) a public water-and-sewer service-area framework run by the Harrisonburg-Rockingham Regional Sewer Authority (HRRSA) and the Rockingham County Public Works / Utilities Division that sharply separates ADU feasibility inside vs. outside those service areas. The Massanutten resort area carries its own density and STR-related planning context reflecting its history as a Planned Community / Large-Scale Development. Rockingham County has NO coastal-commission jurisdiction (it is entirely inland, far outside the Chesapeake Bay Preservation Act boundary), NO CalFire-equivalent WUI regulatory overlay (Virginia has no statewide WUI program; the Virginia Department of Forestry coordinates wildfire response without a permit-constraining overlay), NO seismic-retrofit overlay (standard IRC/IBC provisions as adopted in the Virginia Uniform Statewide Building Code govern), and NO FAA Part 150 airport-noise overlay imposed on surrounding parcels (Shenandoah Valley Regional Airport / KSHD sits partly in Rockingham County with commercial service but no Part 150 noise-exposure overlay is in force).
- Rockingham County Floodplain Overlay District
- Rockingham County Water and Sewer Service Area / HRRSA Overlay
- Agricultural-Preservation and Rural-Preservation Context (Poultry Industry, Shenandoah National Park, George Washington National Forest, Conservation Easements)
County permitting (unincorporated parcels)
Rockingham County's Department of Community Development issues ADU building permits for every parcel in the county except those inside the independent city of Harrisonburg (which operates its own building department and zoning ordinance) and, for zoning matters, those inside the Towns of Bridgewater, Broadway, Dayton, Elkton, Grottoes, Mount Crawford, and Timberville where the town has displaced the county code. All unincorporated communities including Penn Laird, McGaheysville, Massanutten, Keezletown, Linville, Singers Glen, Lacey Spring, Fulks Run, Bergton, Cross Keys, and Port Republic route through the county. A typical Rockingham County ADU permit bundle includes: (1) a Zoning Permit from the county Planning and Zoning Division confirming district eligibility, setbacks, and any overlay triggers, (2) a Building Permit with stamped residential plans filed with the Building Inspections Division, (3) Electrical, Plumbing, and Mechanical trade permits, (4) a Virginia Department of Health onsite-sewage / well construction permit from the Central Shenandoah Health District for parcels not served by public water and sewer (the majority of county parcels), (5) a Floodplain Development Permit if any portion of the parcel is within the mapped 100-year floodplain under the county's Floodplain Overlay, and (6) any town-level review if the parcel is inside one of the seven incorporated towns.
Virginia state — ADU law and programs
State ADU law
Virginia has NOT enacted a statewide ADU preemption law. Virginia is a Dillon Rule state — localities possess only those powers expressly granted by the General Assembly — and the statutes granting zoning authority (Va. Code § 15.2-2280 et seq.) leave ADU regulation to local ordinances. ADU permission, setbacks, parking, size, and owner-occupancy rules therefore vary by county, independent city, and town. Virginia is unique in that it has 38 independent cities that function as counties (neither in nor subordinate to the surrounding county), meaning 'the county' for any given Virginia property may be an independent city rather than a true county. Several ADU preemption bills have been introduced in recent General Assembly sessions (2022 through 2025) without enactment; none have advanced past committee as of the Assembly's 2026 regular session adjournment.
State financing programs
Virginia does not operate an ADU-specific statewide loan, grant, or forgivable-loan program. Virginia Housing (formerly the Virginia Housing Development Authority, VHDA — rebranded 2020) administers general first-time-homebuyer, down-payment-assistance (DPA), mortgage-credit-certificate, and rehabilitation products that can be applied to ADU-adjacent purchases or improvements when eligibility criteria are met, but none target ADU construction as a distinct product. The Virginia Department of Housing and Community Development (DHCD) administers federal HOME and CDBG pass-through funds that local jurisdictions can direct toward ADU-adjacent rehab, but there is no state-level ADU-dedicated line item. Federally available products (FHA 203(k), Fannie Mae HomeReady and HomeStyle Renovation, Freddie Mac CHOICERenovation) remain the primary ADU financing path for Virginia homeowners.
State housing programs
Virginia does not run a state-level pre-approved-ADU-plan catalog, statewide impact-fee-waiver statute for ADUs, or streamlined-review mandate. State-level programs that touch ADU-adjacent policy are coordinated primarily through the Department of Housing and Community Development (DHCD) and Virginia Housing, and act by funding or assisting local jurisdictions rather than by preemption. Local ADU activity — Arlington County's Accessory Dwellings program (detached ADUs permitted since 2008, liberalized 2020), Alexandria's accessory-dwelling ordinance, Fairfax County's accessory-living-unit program, and Charlottesville's 2021 zoning-code changes — is authorized under the localities' Va. Code § 15.2-2280 zoning authority, not by state mandate.
- DHCD Community Development Block Grant (CDBG) Program — Federal CDBG funds administered by DHCD to eligible non-entitlement Virginia localities for community-revitalization, housing-rehab, and infrastructure projects. Not ADU-specific. Participating localities can direct CDBG funds toward housing-rehab projects where local policy supports ADUs.
- DHCD HOME Investment Partnerships Program — Federal HOME funds administered by DHCD to Virginia participating jurisdictions and non-profits for affordable-housing acquisition, rehab, and new construction. Not ADU-specific; can be directed to ADU-adjacent rehab at local discretion.
- Virginia Housing Commission — Permanent advisory commission of the General Assembly that studies housing-policy questions and recommends legislation. Has periodically studied ADU preemption and missing-middle housing without recommending statewide enactment as of 2026-04-21.
- Local ADU ordinances under Va. Code § 15.2-2280 authority — Not a state program — listed here because Virginia ADU policy is executed entirely at the locality level under the § 15.2-2280 zoning grant. A homeowner seeking to build an ADU consults the zoning ordinance of the specific county, city, or town where the parcel is located.
Federal (United States) — ADU-relevant rules and programs
Federal ADU law
The United States has no federal statute that directly regulates accessory dwelling unit entitlement or design. Land-use authority over ADUs resides with states and local governments under the traditional police power. Federal engagement is limited to financing (Fannie/Freddie/FHA/VA/USDA), flood insurance (FEMA/NFIP), and discretionary housing programs (HUD), which are recorded in sibling sections of this file.
Federal financing programs
Federal housing-finance agencies and GSEs set nationwide underwriting rules that govern whether an ADU can be financed, appraised, and counted toward mortgage qualifying income. The relevant actors are Fannie Mae, Freddie Mac, FHA (HUD), VA, and USDA Rural Development.
Federal tax credits
There is no ADU-specific federal tax credit. ADUs may incidentally qualify for existing federal energy-efficiency and clean-energy tax credits when the ADU construction includes qualifying measures.
Federal housing programs
HUD administers several discretionary programs that can fund ADU-related activity at the grantee's election, but none is an ADU-specific program.
ZIP Code
- 22811
Post Office
- 17175 Bergton Rd, 22811