Narragansett

ADU Pass helps homeowners in Narragansett, Washington County, Rhode Island navigate the permit paperwork for building an accessory dwelling unit. This area covers 1 ZIP code.

1 ZIP code

ADU details

ADU legality: allowed

Stateallowed (Rhode Island accessory-dwelling framework) — All 39 Rhode Island cities and towns (there is no unincorporated territory in RI; every acre is within a municipality). Historic districts may still apply aesthetic review but cannot categorically prohibit ADUs.
Countyallowed (Washington County unincorporated zoning) — Washington County permits ADUs in unincorporated areas under state-law-aligned standards. Within Narragansett city limits the city ordinance plus state law govern.
Cityallowed (City of Narragansett Municipal / Zoning Code — Accessory Dwelling Units) — City of Narragansett permits ADUs under the local ordinance aligned with Rhode Island statewide framework where applicable.

Rhode Island preempts most local ADU restrictions. Narragansett permits ADUs by right in single-family zones per its zoning ordinance.

Cost scenarios

ScenarioSq ft PermitBuildTotal
minimum 150 $2,600 $53,550 $56,150
600 600 $2,600 $214,200 $216,800
midpoint 675 $2,600 $240,975 $243,575
maximum 1,200 $2,600 $428,400 $431,000
Fee breakdown
Building permit$4,280
Total$4,280

Permitting process

Typical duration75 days
Backlog28 days
  1. Confirm Appendix A Zoning + CRMC jurisdiction check (~3d)
    Verify parcel zoning under Narragansett's Appendix A Zoning. Critically, confirm whether the parcel is inside CRMC jurisdiction — much of Narragansett (Narrow River corridor, Scarborough State Beach area, Salt Pond, Narragansett Town Beach area, URI Bay Campus area) falls inside the 200-ft coastal feature buffer or the broader CRMC management areas.
  2. CRMC Assent application (if applicable) (~60d)
    If parcel is in CRMC jurisdiction, file a separate CRMC Assent application before or in parallel with the local permit. CRMC review can take 30-90+ days and may require setbacks, vegetated buffers, or stormwater treatment. CRMC contact: 401-783-3370.
  3. Apply via Narragansett E-Permit (Viewpoint) or OpenGov search (~1d)
    Narragansett uses the ViewPointCloud E-Permit portal at narragansettri.viewpointcloud.com for intake; permit search runs on the OpenGov side at narragansettri.portal.opengov.com/search.
  4. Plan review by Building Inspector Jay Humes (~21d)
    Building, MEP, energy code review against IRC 2018 + RI amendments by Jay Humes (Building Inspector) and Troy Alden (Assistant). Office at 25 Fifth Avenue, Narragansett RI 02882, 401-782-0619 (M-F 8:30 a.m. - 4:30 p.m.). Email: jhumes@narragansettri.gov; talden@narragansettri.gov.
  5. Community Development coordination (~7d)
    Narragansett Department of Community Development (401-782-0632, jsabo@narragansettri.gov) handles ADU and zoning interpretation questions including the 60% / 900 / 1,200 sqft caps and 2-bedroom maximum.
  6. Pay statewide-formula building permit fees + CRMC fees if applicable (~1d)
    Building permit fee per 510-RICR-00-00-21; payable via the ViewPoint portal. CRMC Assent fees (if applicable) paid separately to CRMC.
  7. Construction inspections
    Footing, foundation, framing, MEP rough, insulation, final — scheduled with Narragansett Building Inspection at 401-782-0619.
  8. Certificate of Occupancy (~5d)
    Issued by Building Inspector Jay Humes at final pass; CRMC Assent compliance must be documented for parcels in coastal jurisdiction.

Narragansett has heavy CRMC overlap because much of the town lies inside coastal jurisdiction (Narrow River, Scarborough Beach, Salt Pond). CRMC Assent processing for ADU work near shoreline can extend wall-clock by 30-90 days beyond the local building review. Building Official Jay Humes's office at 25 Fifth Avenue handles a steady flow of seasonal-cottage conversions and ADU applications.

Viability (permitted uses)

  • Long-term rental: yes Long-term rental of ADU explicitly permitted; Rhode Island owner-occupancy preemption (where applicable) makes ADU eligible for full landlord-tenant treatment.
  • Short-term rental: with-restrictions STR rules vary by city. Narragansett regulates STRs separately from ADU permitting; check local STR ordinance and HOA covenants.
  • Office rental: with-restrictions Detached office rental requires home occupation permit or rezoning.
  • Home office: yes Home occupation permitted with restrictions on signage and customer traffic.
  • Studio / workshop: yes Personal artist studio is a permitted accessory use.
  • Agriculture: with-restrictions Limited urban agriculture permitted in residential zones; livestock varies by district.
  • Relative support: yes Family-occupancy ADU explicitly permitted in single-family zones.

Contacts

DepartmentTown of Narragansett Building Inspection Department
HoursMonday-Friday 8:30 a.m. - 4:30 p.m.

Staff: Jay Humes (Building Inspector) jhumes@narragansettri.gov, Troy Alden (Assistant Building Inspector) talden@narragansettri.gov

Utilities

  • Water: Narragansett Water Utility · 21d connect · $4,500
  • Sewer: Narragansett Sewer / Wastewater · 21d connect · $5,500
  • Electric: Narragansett Electric Utility · 14d connect · $1,800
  • Gas: Narragansett Gas Utility · 21d connect · $1,500

Property values & taxes

Median value$685,000
Median tax$6,580/yr
Effective rate1.0%

Construction timeline

Detached build24 weeks
Conversion12 weeks
Contractor lead4 months

Realistic total: best 7mo · typical 11mo · worst 17mo

Financing

Insurance impact

Annual premium delta$480
Landlord policyrecommended
Umbrella threshold$1M umbrella when renting

HOA prevalence & preemption

State HOA preemptionno

R.I.G.L. § 45-24-73 explicitly voids homeowners' association, condominium association, or similar private-covenant restrictions on ADUs when those restrictions conflict with the statute's ADU minimums. The preemption is framed as a public-policy void, meaning the offending covenant is unenforceable rather than simply regulated. Pre-existing ADU-friendly covenants remain valid (the statute only void conflicting restrictions). Applies to all common-interest communities governed by the Rhode Island Condominium Act (R.I.G.L. Title 34, Chapter 36) and Rhode Island Condominium Ownership Act (Title 34, Chapter 36.1), as well as HOAs in planned-community subdivisions.

Regulatory overlays (2)

  • flood-zone
    Narragansett has FEMA Special Flood Hazard Areas; elevation certificates and flood-resistant construction required for SFHA parcels.
  • historic-district
    Narragansett historic districts trigger Architectural Review Board / Historic Preservation Commission review for ADUs in historic boundaries.
Technical envelope (climate & building code)

Climate & energy code

IECC climate zone5A
Heating degree days5,800
Cooling degree days850
Frost depth30"
Design snow load30 psf
Wind design speed115 mph
Seismic design cat.B
Annual rainfall36"
Wildfire exposurelow
Energy codeIECC
Version / adopted2018 / 2020

Building code

Base codeIRC
Version year2,018
Adopted2020
Fire sprinklernone
Egress window5.7 sqft min
Min ceiling7 ft
Attic R-valueR-49 min
Wall R-valueR-20 min

Amendments:

  • Amendment
  • Amendment
Rhode Island state — ADU law and programs

State ADU law

Rhode Island enacted statewide ADU preemption in 2024 through H 7062 (chief sponsor Rep. June Speakman and colleagues; co-sponsored in the Senate as S 2710), which amended the Zoning Enabling Act (Title 45, Chapter 24). Municipalities must permit ADUs by-right on any lot containing a single-family dwelling, subject only to uniform minimum standards set by the statute. One of the most ADU-friendly state statutes in the country as of 2025.

State HOA preemption

R.I.G.L. § 45-24-73 explicitly voids homeowners' association, condominium association, or similar private-covenant restrictions on ADUs when those restrictions conflict with the statute's ADU minimums. The preemption is framed as a public-policy void, meaning the offending covenant is unenforceable rather than simply regulated. Pre-existing ADU-friendly covenants remain valid (the statute only void conflicting restrictions). Applies to all common-interest communities governed by the Rhode Island Condominium Act (R.I.G.L. Title 34, Chapter 36) and Rhode Island Condominium Ownership Act (Title 34, Chapter 36.1), as well as HOAs in planned-community subdivisions.

  • R.I.G.L. § 45-24-73 (HOA preemption clause added by H 7062 (2024)) — Provides that private covenant restrictions imposed by condominium associations, homeowners' associations, or similar residential property governing bodies that conflict with the ADU provisions are void as against public policy. Drafted broadly — covers declarations, bylaws, rules and regulations, and recorded covenants.

State financing programs

RIHousing, the state's housing finance agency, operates an ADU financing program built around the FHA 203(k) loan product. Covers attached and interior ADUs for both purchase and refinance. Detached ADUs are NOT eligible. Requires mandatory homebuyer education, use of an FHA-approved 203(k) consultant, and a RI licensed and insured contractor. No state-specific grant program for ADUs is in effect as of 2026-04-21; the federal 203(k) rails are the production vehicle.

State housing programs

Rhode Island does not currently operate a single statewide pre-approved-ADU-plan catalog (as California's CalHFA and Washington's Commerce plan libraries). Implementation of the 2024 ADU law is happening municipality-by-municipality, with the Executive Office of Housing (EOH) coordinating technical assistance. Providence published a citywide ADU Guide (February 2025) as the leading model; East Providence adopted a conforming ordinance in 2024; South Kingstown published regulations in 2024. RIHousing runs the ADU financing side (see stateFinancing).

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

  • 02882

Post Office

  • 15 Memorial Sq, 02882