ADU Pass
Orlean
ADU Pass helps homeowners in Orlean, 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
ADUs allowed in RA/RC districts under Fauquier County's accessory-dwelling framework with size cap, owner-occupancy, and private well/septic dependency (no public utility extension to Orlean). The county Service Districts framework concentrates growth in Warrenton, Marshall, and a few designated nodes; Orlean's rural character is intentionally preserved.
Cost scenarios
| Scenario | Sq ft | Permit | Build | Total |
|---|---|---|---|---|
| minimum | 220 | $980 | $88,000 | $88,980 |
| 600 | 600 | $1,380 | $240,000 | $241,380 |
| midpoint | 600 | $1,380 | $240,000 | $241,380 |
| 1000 | 1,000 | $2,350 | $400,000 | $402,350 |
Fee breakdown (as of 2026-05)
Permitting process
Viability (permitted uses)
- Long-term rental: with-restrictions Long-term rental permitted subject to county owner-occupancy condition. Limited year-round tenant pool due to rural distance to employment centers (~25 miles to Warrenton, ~50 miles to DC).
- Short-term rental: with-restrictions Fauquier County requires STR zoning approval and registration. Orlean's wine-country location creates strong demand for weekend / wedding / wine-tour STRs; Virginia Wine Country Trail brings DC-area visitors.
- Office rental: no Commercial office rental in RA/RC districts not permitted without rezoning.
- Home office: yes Home occupation permitted under standard county conditions; common pattern for wine-country owners running tasting rooms, equestrian businesses, or art studios.
- Studio / workshop: yes Personal artist/workshop studio is a normal accessory use; Orlean has an active art and craft community tied to Piedmont landscape painting tradition.
- Agriculture: yes RA/RC districts explicitly support agricultural accessory uses including vineyards, equestrian, livestock; ADU on a working farm or vineyard is the canonical pattern.
- Relative support: yes Multigenerational accessory dwelling for family members is supported under the owner-occupancy framework; common pattern for inherited Piedmont farms.
Incentives
Contacts
Utilities
- Water: Private well (Orlean is outside all Fauquier County Service Districts; no public water main) · 90d connect · $12,000
- Sewer: Private septic system (Virginia Department of Health, Rappahannock-Rapidan Health District regulated) · 100d connect · $18,500
- Electric: Rappahannock Electric Cooperative (REC) · 45d connect · $2,600
- Gas: No piped natural gas in rural Fauquier; propane only via Suburban Propane, AmeriGas · 21d connect · $2,300
Property values & taxes
Construction timeline
Realistic total: best 10mo · typical 13mo · worst 20mo
Modular pathway inspectors are occasional with modular
Orlean access via Route 647 / Route 688 is narrow rural two-lane through Bull Run Mountains foothills; oversize modular delivery requires route survey and possible utility-line work.
Financing
Insurance impact
HOA prevalence & preemption
Orlean has low HOA prevalence — mostly family-held rural acreage and small private subdivisions. A few cluster-development tracts have informal covenants.
Regulatory overlays (1)
- other
Fauquier County Rural Conservation framework (Comprehensive Plan 2009) intentionally limits development density and concentrates growth in designated Service Districts. ADUs are permitted in RA/RC but the broader policy framework constrains supporting infrastructure (no public water/sewer extension).
Technical envelope (climate & building code)
Climate & energy code
Building code
Amendments:
- Amendment
- Amendment
Contractor market (aggregate)
Legal history (timeline)
Current ordinance: Fauquier County Zoning Ordinance, Article 5 — Accessory Dwellings, adopted 2023-04-13, last amended 2023-04-13
- 1759-01-01 — Fauquier County established by the Virginia General Assembly (local-ordinance)
Fauquier County formed in 1759 from Prince William County. Named for Lt. Gov. Francis Fauquier. Orlean takes its name from the French Bourbon city of Orleans, reflecting late-Colonial French cultural influence in Piedmont Virginia.
Effect: Establishes Fauquier County as the unit of land-use authority over Orlean. - 2009-01-01 — Fauquier County Comprehensive Plan — Service Districts framework (county-ordinance)
Comprehensive Plan formally designates a limited set of growth-focused Service Districts (Warrenton, Marshall, Bealeton, New Baltimore, Catlett) where public water/sewer is extended. Rural areas including Orlean remain in the Rural Conservation framework with private well/septic and density limits.
Effect: Limits ADU development in Orlean to private-utility solutions; protects the rural / agricultural / equestrian character that defines Orlean. - 2023-04-13 — Fauquier County Zoning Ordinance — accessory dwelling clarification (county-ordinance)
Most recent operative update to accessory dwelling standards in the Fauquier County Zoning Ordinance — clarifies size caps, owner-occupancy enforcement, and Service District / non-Service-District distinctions.
Effect: Pre-dates the SB531 January 1, 2026 exemption deadline; controls in Orlean. - 2026-04-14 — Virginia SB531 — statewide by-right ADU mandate signed by Governor Spanberger (state-law)
SB531 signed by Governor Spanberger, effective July 1, 2027. Mandates by-right ADUs in single-family zones, caps permit fees at $500. Localities with ADU ordinances in place by January 1, 2026 are exempt.
Effect: Fauquier County's pre-2026 accessory-dwelling ordinance satisfies the exemption; Orlean remains under county rules.
Known issues (2)
- policy-review — Private well/septic adds $25K-$35K to project cost vs. public utility connection elsewhere in Fauquier.
- policy-review — Owners pursuing STR as primary use case must maintain genuine principal-dwelling occupancy; non-compliance can trigger zoning enforcement.
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
- 20128
Post Office
- 6864 Leeds Manor Rd, 20128