Monroe

ADU Pass helps homeowners in Monroe, Amherst County, Virginia navigate the permit paperwork for building an accessory dwelling unit. This area covers 1 ZIP code.

1 ZIP code

ADU details

ADU legality: with-restrictions

Statewith-restrictions (Virginia Code Title 15.2 Chapter 22 (general zoning enabling) - Va. Code Ann. 15.2-2280 / 15.2-2308) — Virginia is a Dillon Rule state. There is no statewide ADU preemption. HB 2299 (2023) directed JLARC to study ADUs but did not preempt local zoning. Each county ordinance is independently operative.
Countywith-restrictions (Amherst County Code Chapter 18 (Zoning Ordinance)) — Monroe is an unincorporated community (former Southern Railway yard town, originally 'Potts, Va.' until 1905) sitting along US-29 about 8 miles south of Amherst town along the James River corridor. As unincorporated land, Monroe is governed entirely by Amherst County zoning. The county ordinance does not contain a standalone ADU article; second dwellings on agricultural (A-1) and residential (R-2 / R-LD) parcels generally require Special Use Permit, family-care dwelling permit under Va. Code 15.2-2292, or family-subdivision pathway.
Citywith-restrictions (Not applicable - no incorporated municipality) — Monroe has no town government. All planning, zoning, and building authority sits with Amherst County. The county's joint Board of Zoning Appeals (with Town of Amherst) hears appeals.

ADU on a Monroe parcel requires a Special Use Permit through Amherst County Planning Commission and Board of Supervisors. Most Monroe parcels are zoned A-1 (Agricultural) or R-2 / R-LD (Low Density Residential) where minimum lot sizes range from 1.5 to 5 acres - the SUP path is typical. Family-care dwelling under Va. Code 15.2-2292 is an alternate ministerial path for relative-occupancy use.

Cost scenarios

ScenarioSq ft PermitBuildTotal
minimum 400 $950 $96,000 $96,950
midpoint 700 $1,150 $175,000 $176,150
maximum 1,100 $1,450 $286,000 $287,450
Fee breakdown (as of 2026-04)
Building permit$600
Total$2,002

Permitting process

Typical duration177 days
Backlog21 days
  1. Pre-application meeting with Amherst County Planning & Zoning (~7d)
    Schedule with County Planning & Zoning (153 Washington Street, Amherst VA, 434-946-9303). Discuss parcel zoning (A-1 / R-LD / R-2), confirm SUP applicability, review well-and-septic capacity, and confirm whether any portion of the parcel falls within the James River Chesapeake Bay Preservation Area exclusion zone (Amherst County is upriver of the Chesapeake Bay Preservation Act mandatory localities).
  2. Submit Special Use Permit application (~1d)
    File SUP application with Amherst County Planning Department including site plan, narrative, neighbor-notice list within 500 feet. Filing fee paid at submittal.
  3. Amherst County Planning Commission review and recommendation (~60d)
    Planning Commission holds public hearing within 60-90 days of complete application. Commission issues advisory recommendation to Board of Supervisors.
  4. Amherst County Board of Supervisors hearing and SUP decision (~30d)
    Board of Supervisors holds public hearing and votes to approve, approve with conditions, or deny. Joint Board of Zoning Appeals hears any appeals.
  5. Virginia Department of Health well-and-septic permit (~45d)
    VDH-Central Region issues onsite sewage system (OSS) permit for new septic; private well construction permit for new well. Required for any Monroe parcel without public water/sewer (which is most). Soil evaluation by Authorized Onsite Soil Evaluator (AOSE) typical.
  6. Apply for building permit through Amherst County Building Safety & Inspections (~5d)
    Submit building permit application to Amherst County Building Safety & Inspections (153 Washington Street, 434-946-9302). Approved SUP and VDH OSS permit must be in hand.
  7. Plan review under 2021 Virginia Uniform Statewide Building Code (~21d)
    County Building Official reviews plans for VRC 2021 (2018 IRC base + Virginia amendments). Monroe is in IECC Climate Zone 4A; R-49 attic / R-20 wall insulation minimums. Va. removes the IRC R313 residential sprinkler mandate.
  8. Issuance of building and trade permits (~3d)
    After plan-review approval and fee payment, building permit issues with separate plumbing, electrical, mechanical, gas permits as applicable.
  9. Construction inspections (footing, framing, MEP rough, insulation, septic, final)
    Standard inspections requested through Amherst County Building Safety & Inspections (434-946-9302). VDH inspector signs off septic system separately.
  10. Certificate of Occupancy issuance (~5d)
    County Building Official issues CO upon final inspection pass. CO triggers Amherst County Commissioner of Revenue assessment update.

Viability (permitted uses)

  • Long-term rental: yes Long-term rental of permitted ADU consistent with A-1/R-LD/R-2 residential character; rural Monroe rental market is shallow but Sweet Briar College and Lynchburg commute support modest demand.
  • Short-term rental: with-restrictions (Amherst County transient occupancy under Va. Code 58.1-3819) Amherst County imposes transient occupancy tax on lodgings under 30 days. SUP for ADU may include conditions limiting STR; rural Monroe parcels often suit Blue Ridge tourist STR market.
  • Office rental: no Amherst County zoning limits accessory dwelling to dwelling-unit purposes; commercial office tenancy not permitted in residential or agricultural zones.
  • Home office: yes Home occupation permitted as accessory use; agricultural-use protections under Va. Code 3.2-300 et seq. may also apply.
  • Studio / workshop: yes Personal artist or workshop use permitted as accessory residential use.
  • Agriculture: yes Agricultural use is the primary permitted use in A-1; livestock, crops, equestrian use generally permitted by-right under right-to-farm protections.
  • Relative support: yes Family-care dwelling for elderly or disabled relative permitted under Va. Code 15.2-2292 - alternate ministerial path that bypasses SUP for owner's adult immediate family.

Incentives

  • Virginia Land Preservation Tax Credit — Conservation easement credits available for qualifying Monroe-area rural parcels under Va. Code 58.1-512 et seq. Common in Amherst County's open-space and forest parcels.
  • Virginia Land Use Assessment (Use Value) — Va. Code 58.1-3230 et seq. allows agricultural or forestal land in Amherst County to be taxed at use-value rather than fair-market-value rate. Most Monroe agricultural parcels qualify.

Contacts

DepartmentAmherst County Department of Planning and Zoning (county-administered for unincorporated Monroe)

Staff: Amherst County Planning & Zoning Administrator (Reviews SUPs and zoning permits for unincorporated Amherst County including Monroe (153 Washington Street)), Amherst County Building Safety & Inspections (Building permit / inspection authority - issues all county building permits (153 Washington Street)), Virginia Department of Health - Central Region (Lynchburg District) (Onsite sewage and well permits for Monroe parcels (private infrastructure))

Utilities

  • Water: Private well (most parcels) - Virginia Department of Health permitted · 45d connect · $8,500
  • Sewer: Private septic system (most parcels) - Virginia Department of Health permitted onsite sewage system · 60d connect · $14,500
  • Electric: Appalachian Power Company (AEP) · 21d connect · $1,700
  • Gas: Propane (no natural gas mains in Monroe area) · 14d connect · $1,500

Property values & taxes

Median value$195,000
Median tax$1,462/yr
Effective rate0.8%

Market rent by ADU size

Sq ftRent
400$680/mo
700$950/mo
1,100$1,280/mo

Construction timeline

Detached build26 weeks
Conversion16 weeks
Contractor lead5 months

Realistic total: best 11mo · typical 16mo · worst 24mo

Long worst-case driven by SUP path (4-5 months) plus VDH well/septic permitting (1.5 months) before construction begins. Rural Lynchburg-area GC pool is shallow; Monroe parcels typical sub from Lynchburg or Charlottesville.

Modular pathway Virginia Industrialized Building Safety Regulations (13 VAC 5-91) · inspectors are occasional with modular

US-29 corridor handles standard modular widths well; Monroe Road and side roads through railway corridor have grade-crossing constraints; rural well/septic infrastructure must be in place before module set.

Financing

Typical HELOC8.7%
Cash-out refi avg7.5%
Fannie Mae ADUeligible

State ADU loans:

Insurance impact

Annual premium delta$380
Landlord policyrecommended
Umbrella threshold$1M umbrella when long-term renting

Rural carrier market thinner than town; Erie, State Farm, Nationwide, and Farm Bureau dominant. Distance-to-fire-hydrant rating elevates premiums modestly versus town parcels.

HOA prevalence & preemption

% parcels under HOA2%
State HOA preemptionno
Preemption citationNo Virginia statewide preemption of HOA ADU bans

Monroe parcels are predominantly fee-simple agricultural / rural-residential with negligible HOA presence; some river-frontage subdivisions along James River may have minimal covenants.

Regulatory overlays (2)

  • flood-zone — FEMA SFHA Zone A along James River corridor (eastern Monroe), Buffalo River, and various tributary creeks · +14d · +8% cost
    Elevation certificate and flood-resistant construction required for SFHA parcels. FIRM panels current effective 2010-09-29 for Amherst County. Federal flood insurance required for federally-backed financing in SFHA. (map)
  • other — Norfolk Southern Railway right-of-way bisects Monroe; setback and noise restrictions apply · +7d · +3% cost
    Building permit setback from rail right-of-way; vibration-isolation foundation may be advised within 200 feet of mainline. (map)
Technical envelope (climate & building code)

Climate & energy code

IECC climate zone4A
Heating degree days4,280
Cooling degree days1,530
Design low / high12°F / 92°F
Frost depth18"
Design snow load25 psf
Wind design speed115 mph
Seismic design cat.B
Annual rainfall44"
Wildfire exposuremoderate
Energy codeIECC
Version / adopted2021 / 2024-01-18

Building code

Base codeVirginia Residential Code (2018 IRC + Virginia amendments)
Version year2,021
Adopted2024-01-18
Fire sprinklernone
Egress window5.7 sqft min
Min ceiling7 ft
Attic R-valueR-49 min
Wall R-valueR-20 min

Amendments:

Contractor market (aggregate)

Licensed residential GCs65
ADU-specialist GCs1
Median GC size (employees)3
Laborer median wage$21/hr
Typical GC markup18%

Known issues (2)

  • policy-gap (since 1985-01-01) — All accessory dwellings on unincorporated parcels require SUP; family-care dwelling is the only ministerial path and requires owner-relative occupancy. (source)
  • infrastructure (since permanent) — Private well-and-septic infrastructure adds approximately $20-25K to project cost and 45-60 days to schedule for VDH permitting. (source)
Amherst County — county ADU rules and overlays

County ADU ordinance

Amherst County regulates land use — and therefore accessory dwelling units — through its county Zoning Ordinance, administered by the Amherst County Department of Community Development (Planning & Zoning Division) under the authority of the Amherst 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 Amherst 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 § 15.2-2280 and the ordinance-content provisions of § 15.2-2286. The county zoning ordinance is codified in the Amherst County Code and organized by use districts (Agricultural, Residential, Business, Industrial, and 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 and typically requires one of three pathways: (a) a family/kinship-dwelling qualification for a related-occupant second unit 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. Amherst 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. Parcels within the incorporated Town of Amherst (the county seat) are governed by the Town of Amherst zoning ordinance, not this county ordinance; the unincorporated communities of Madison Heights, Monroe, Elon, Pleasant View, and the rural balance of the county are governed by the county ordinance. Portions of the county along Bear Mountain are within the Monacan Indian Nation's core tribal territory; tribal land-holdings administered by the Monacan Indian Nation (state-recognized 1989 and federally recognized in 2018) are subject to tribal self-governance, not to county zoning, on parcels held in tribal trust or tribal title.

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 § 15.2-2280 grants counties, cities, and towns 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. Amherst 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 2026-04-21.

County regulatory overlays

Amherst County administers or is subject to several overlay regimes that materially affect ADU siting on unincorporated parcels: (1) FEMA Special Flood Hazard Areas along the James River (the southern/eastern county boundary between Amherst and Campbell / Lynchburg), the Pedlar River, the Tye River, Buffalo Creek, and other tributaries, administered through the county floodplain ordinance satisfying NFIP minimum standards; (2) Blue Ridge Parkway corridor and George Washington & Jefferson National Forest adjacency in the western part of the county — federal land-management agencies do not directly regulate private parcels, but scenic-corridor considerations and cooperative viewshed policy affect parcels along the Parkway; (3) Agricultural and Forestal Districts (AFDs) established under Va. Code § 15.2-4300 et seq., which provide participating landowners use-value taxation and subdivision-deferral protections in exchange for a commitment to keep land in agricultural or forestal use; (4) Monacan Indian Nation tribal lands — the federally and state-recognized Monacan Indian Nation's core tribal territory centers on Bear Mountain in the southwestern part of the county; tribal-held land is subject to tribal self-governance rather than county zoning, but most private parcels around Bear Mountain are not tribal-held and remain under county jurisdiction; (5) Chesapeake Bay Preservation Act applicability — Amherst 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; (6) wildfire risk — Amherst County has wildfire risk tracked by the Virginia Department of Forestry, particularly along the Blue Ridge escarpment in the western mountainous areas, but Virginia does not have a California-style Very High Fire Hazard Severity Zone regulatory overlay with mandatory ignition-resistant-construction requirements; the Virginia Uniform Statewide Building Code has not adopted the International Wildland-Urban Interface Code statewide. Amherst County does not maintain a countywide historic-district overlay, though individual properties (for example, Sweet Briar College buildings, historic plantation houses, and other landmarks) 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; FEMA periodically updates Virginia county maps. The James River corridor in particular has extensive SFHAs that can rule out ADU siting on riverside parcels without substantial elevation or fill permitted under the floodplain ordinance.
  • 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 Amherst County AFD Advisory Committee and the zoning administrator before assuming ADU compatibility.
  • Blue Ridge Parkway and George Washington & Jefferson 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.
  • 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 Amherst County locations — particularly along the western mountainous edge — 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.
  • Monacan Indian Nation tribal territory — Bear Mountain — The Monacan Indian Nation received Virginia state recognition in 1989 and federal recognition in 2018 under the Thomasina E. Jordan Indian Tribes of Virginia Federal Recognition Act (Pub. L. No. 115-121, enacted January 29, 2018), which also federally recognized five other Virginia tribes. Land held in tribal trust by the United States on behalf of the Monacan Indian Nation is not subject to Amherst County zoning; land held in fee by the Nation may, depending on the terms of acquisition and federal trust applications, be subject to county zoning pending any trust conveyance. Applicants proposing development on or adjacent to tribal lands should contact the Monacan Indian Nation directly in addition to any county permitting. Most private parcels in the Bear Mountain vicinity remain under ordinary county zoning jurisdiction.

County permitting (unincorporated parcels)

The Amherst County Department of Community Development is the permitting authority for zoning determinations, Special Use Permits, subdivisions, and building permits on parcels within the unincorporated county (i.e., all parcels outside the Town of Amherst corporate limits). Amherst County comprises approximately 475 square miles of the central Virginia Piedmont, bordered to the north by Nelson County, to the east by the James River and the City of Lynchburg / Campbell County, to the south by Appomattox County, and to the west by the Blue Ridge Mountains and Rockbridge County / the George Washington & Jefferson National Forest. The Town of Amherst (county seat) is the only incorporated place in the county; Madison Heights (a large census-designated place immediately north of Lynchburg across the James River), Monroe, Elon, and Pleasant View are unincorporated communities permitted by the county. Bear Mountain in the southwestern part of the county is the historic heart of the Monacan Indian Nation, which received federal recognition in 2018 (Thomasina E. Jordan Indian Tribes of Virginia Federal Recognition Act, Pub. L. No. 115-121); tribal trust or tribal-held land is subject to tribal self-governance rather than county zoning. For an ADU-style project on an unincorporated Amherst County parcel, the typical sequence is: (a) zoning determination from the Planning & Zoning Division (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 well/septic evaluation (for parcels not served by public utilities); (d) building permit application to the county building official; (e) inspections through construction; (f) certificate of occupancy. The Department of Community Development operates a county-managed online permit-status page but does not yet run a full ePermitting portal of the Accela / Tyler type; most applications are submitted in person or by mail to the department.

DepartmentAmherst County Department of Community Development
Address153 Washington Street, P.O. Box 390, Amherst, VA 24521 (Amherst County Administration Building)
Phone434-946-9303
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

  • 24574

Post Office

  • 3378 S Amherst Hwy, 24574