Harrisonburg

No County portion

ADU Pass helps homeowners in Harrisonburg, No 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: allowed-with-restrictions

Statewith-restrictions (Virginia SB531 (2026), effective July 1, 2027) — SB531 mandates localities permit ADUs by-right in single-family zones with $500 permit fee cap. Effective July 1, 2027. Localities with pre-January 2026 ADU ordinances are exempt — Harrisonburg's status is contingent on whether the in-process Zoning and Subdivision Ordinances Update Project (in development since 2020) is adopted before that cutoff.
Countyunclear (Not applicable — Harrisonburg is a Virginia independent city) — Harrisonburg is one of Virginia's 38 independent cities (statutorily a peer of counties, not a sub-unit). Although geographically surrounded by Rockingham County, Harrisonburg has no county-tier government over it; all land-use and permitting is direct city authority. ADU research therefore filed under the synthetic no_county bucket per project convention for VA independent cities.
Citywith-restrictions (Harrisonburg City Code Title 10 (Planning and Development), Chapter 3 (Zoning)) — Harrisonburg's current 1997 zoning ordinance does NOT have explicit by-right ADU provisions. The Zoning and Subdivision Ordinances Update Project (active since 2020) includes a proposed ADU framework that would allow ADUs on most single-family lots; as of January 2026 industry coverage (The Gaines Group Architects) the update has NOT yet been adopted. In current code, accessory apartments require Special Use Permit. R-1 Single-Family, R-2 Residential, R-3 Multiple Dwelling, and R-7 Medium Density Residential are the relevant residential districts.

Today: ADUs in Harrisonburg require Special Use Permit through Planning Commission and City Council. Coming: the in-process zoning rewrite is expected to allow by-right ADUs on most single-family lots. Backstop: if Harrisonburg has not adopted a pre-January-2026 ADU ordinance, SB531 mandates by-right ADU permission city-wide starting July 1, 2027.

Cost scenarios

ScenarioSq ft PermitBuildTotal
minimum 200 $750 $64,000 $64,750
600 600 $1,850 $192,000 $193,850
midpoint 600 $1,850 $192,000 $193,850
maximum 900 $2,350 $288,000 $290,350
Fee breakdown (as of 2026-05)
Plan review$75
Building permit$1,200
Impact fees$425
Total$1,700

Permitting process

Typical duration140 days
Backlog45 days

Viability (permitted uses)

  • Long-term rental: with-restrictions Strong long-term rental demand: 22,000 JMU students (68 percent live off-campus) plus EMU students plus Sentara RMH employees create deep tenant pool. Currently requires SUP for accessory apartment; per-bedroom rents $700-$875 (below regional median).
  • Short-term rental: with-restrictions Harrisonburg permits STRs subject to zoning review and city transient occupancy tax registration. Moderate STR demand for JMU parents weekend, Shenandoah Valley tourism, Eastern Mennonite events.
  • Office rental: no Detached office rental to outside tenants not permitted in residential districts.
  • Home office: yes Home occupation permitted with restrictions on signage, employees, customer traffic.
  • Studio / workshop: yes Personal studio is a permitted accessory use in residential districts.
  • Agriculture: no Harrisonburg is urban-residential; agricultural accessory structures not generally permitted within city limits.
  • Relative support: with-restrictions Accessory apartments for family members allowed via SUP; SB531 (July 2027) would remove family-relation requirements.

Contacts

DepartmentCity of Harrisonburg Department of Community Development

Utilities

  • Water: Harrisonburg Department of Public Utilities (city operates own water system) · 30d connect · $3,800 · separate meter required
  • Sewer: Harrisonburg-Rockingham Regional Sewer Authority (HRRSA) via City Public Utilities · 45d connect · $6,500
  • Electric: Harrisonburg Electric Commission (municipal electric utility — one of few in Virginia) · 28d connect · $1,900 · separate meter required
  • Gas: Columbia Gas of Virginia · 21d connect · $2,200

Property values & taxes

Median value$285,000
Median tax$2,424/yr
Effective rate0.8%

Construction timeline

Detached build22 weeks
Conversion12 weeks
Contractor lead3 months

Realistic total: best 10mo · typical 14mo · worst 24mo

Modular pathway inspectors are occasional with modular

I-81 corridor provides major-route access; Harrisonburg's older urban neighborhoods have tight historic streets that may constrain modular delivery for Old Town parcels.

Financing

Insurance impact

Annual premium delta$520
Landlord policyrecommended
Umbrella threshold$1M umbrella when renting (especially student tenancy)

HOA prevalence & preemption

State HOA preemptionno

Mix of older walkable neighborhoods (Old Town, Downtown, Park View) with low HOA presence, plus newer subdivision developments (Stone Spring, Reherd Acres area) with active HOAs.

Regulatory overlays (1)

  • historic-district
    Old Town Harrisonburg added to National Register of Historic Places in 2008; covers area east of downtown up to Woodbine Cemetery and near JMU. Downtown Harrisonburg was named a Great American Main Street in 2014 and is Virginia's first designated culinary district. Properties in these districts may face Architectural Review Board (ARB) review for visible exterior changes.
Technical envelope (climate & building code)

Climate & energy code

IECC climate zone5A
Heating degree days5,100
Cooling degree days1,150
Design low / high8°F / 89°F
Frost depth28"
Design snow load25 psf
Wind design speed115 mph
Seismic design cat.B
Annual rainfall38"
Wildfire exposurelow
Energy codeIECC
Version / adopted2018 / 2021

Building code

Base codeIRC
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:

  • Amendment
  • Amendment
  • Amendment

Contractor market (aggregate)

Licensed residential GCs420
ADU-specialist GCs11
Unionized share5%
Laborer median wage$20/hr
Typical GC markup16%

Known issues (3)

  • policy-review — Adds 3-5 months to project timeline plus $425 SUP application fee plus public-hearing exposure to neighbor opposition.
  • policy-review — Owners may benefit from waiting for update or for SB531's July 2027 by-right mandate before applying.
  • other — Favorable rent and occupancy economics for ADU landlords.
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

  • 22803

Post Office

  • 281 N Mason St, 22802

Locale Names

  • Downtown Harrisonburg