ADU Pass
Corbin
ADU Pass helps homeowners in Corbin, No 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
Corbin is an unincorporated CDP in northeastern Caroline County. ADUs are permitted under Caroline County Article XV subject to district zoning, well/septic approval, and Special Use Permit for detached units in some districts.
Cost scenarios
| Scenario | Sq ft | Permit | Build | Total |
|---|---|---|---|---|
| minimum | 200 | $1,050 | $54,000 | $55,050 |
| 600 | 600 | $1,200 | $168,000 | $169,200 |
| midpoint | 600 | $1,200 | $168,000 | $169,200 |
| maximum | 1,000 | $1,300 | $290,000 | $291,300 |
Fee breakdown (as of 2026-05)
Permitting process
Viability (permitted uses)
- Long-term rental: yes Long-term rental of accessory dwelling permitted.
- Short-term rental: with-restrictions Caroline County regulates STR; Bowling Green Town has its own STR permit. Fredericksburg-area tourism supports modest STR demand.
- Office rental: no Must remain a dwelling unit.
- Home office: yes Home occupation permitted under the County Home Occupation Packet rules.
- Studio / workshop: yes Personal artist or workshop use permitted.
- Agriculture: yes Most Corbin parcels are agricultural; right-to-farm protections apply.
- Relative support: yes Family-occupancy is the typical Caroline County accessory-dwelling pattern.
Contacts
Utilities
- Water: Private well (VDH Three Rivers Health District approval required) or Caroline County Public Utilities for parcels with municipal water · 45d connect · $8,500
- Sewer: Private septic system (VDH Three Rivers Health District approval required) · 60d connect · $13,000
- Electric: Dominion Energy Virginia or Rappahannock Electric Cooperative (depends on parcel) · 28d connect · $1,700
- Gas: Propane (no natural-gas distribution in Corbin) · 14d connect · $1,800
Property values & taxes
Construction timeline
Realistic total: best 7mo · typical 10mo · worst 15mo
Modular pathway inspectors are occasional with modular
I-95 access via US-17; tight rural roads off the highway.
Financing
State ADU loans:
Insurance impact
HOA prevalence & preemption
Caroline County rural land is largely non-HOA; a few subdivided clusters along Route 2 and near Lake Caroline are governed by HOA covenants.
Technical envelope (climate & building code)
Climate & energy code
Building code
Amendments:
- Amendment
Contractor market (aggregate)
Legal history (timeline)
Current ordinance: Caroline County Zoning Ordinance Article XV - Supplemental Regulations, adopted 1995-01-01, last amended 2025-12-09
- 2025-12-09 — Caroline County Article XV Supplemental Regulations - most recent amendment (county-ordinance)
Caroline County Board of Supervisors amended Article XV (Supplemental Regulations) through December 9, 2025, refining accessory-use and home-occupation standards.
Effect: Most recent operative version of the accessory-dwelling framework governing Corbin parcels.
County: no attribution (synthetic bucket)
No county
This city sits in the state's "no county" bucket — its ADU rules derive directly from state law and city ordinance without a county intermediary. No county-level sections apply.
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
- 22446
Post Office
- 4519 Fredericksburg Tpke, 22446