ADU Pass
Harrisville
ADU Pass helps homeowners in Harrisville, Providence County, Rhode Island navigate the permit paperwork for building an accessory dwelling unit. This area covers 2 ZIP codes.
Map
ADU details
ADU legality: allowed
Burrillville permits ADUs by-right under Chapter 30 conformed to RIGL §45-24-37(j). Burrillville's affordable-housing provisions effective 2024-01-01 add an inclusionary overlay relevant to multi-unit projects but ADUs remain administrative.
Cost scenarios
| Scenario | Sq ft | Permit | Build | Total |
|---|---|---|---|---|
| minimum | 150 | $2,700 | $45,750 | $48,450 |
| 600 | 600 | $2,700 | $183,000 | $185,700 |
| midpoint | 675 | $2,700 | $205,875 | $208,575 |
| maximum | 1,200 | $2,700 | $366,000 | $368,700 |
Fee breakdown (as of 2026-04)
Permitting process
- Verify Chapter 30 ADU eligibility (~5d)
Verify Burrillville Code Chapter 30 (Zoning) ADU eligibility for the Harrisville parcel and confirm the RIGL §45-24-37(j) 20,000 sqft minimum-lot rule. Burrillville does not levy a residential ADU development impact fee, but the inclusionary affordable-housing overlay (effective 2024-01-01) applies to larger multi-unit projects — ADUs are exempt. - Pre-application call with Burrillville Building Department (~7d)
Call (401) 568-4300 x128. Building Official Steven Detonnancourt manages the Building, Zoning & Planning office at 144 Harrisville Main Street, Harrisville (mail: 105 Harrisville Main Street). Hours are M-W 8:30-4:30, Th 8:30-7:00, F 8:30-12:30 — the Thursday evening hours are useful for scheduling pre-app meetings. - Request CREW service-availability letter (~14d)
If the parcel is in CREW (Clear River Electric & Water District) service area, request a service availability letter for the ADU. CREW formed 2025-01-01 from the merger of the former Harrisville Fire District water department and Pascoag Utility District. Outside the CREW service area, file a private well plan with RIDEM. Confirm OWTS capacity for the added bedroom load with a RIDEM-licensed designer where on septic. - Conservation Commission coordination (reservoir buffers) (~14d)
Round Top Reservoir / Pascoag Reservoir buffer parcels: coordinate with the Burrillville Conservation Commission. The Commission reviews wetland and watershed buffer impacts before plan review proceeds. - Submit application via Burrillville online permit system (~1d)
Submit through Burrillville's town-specific online permit system (introduced 2023-07-31) at burrillville.org/building-zoning. Note this is NOT the statewide permits.ri.gov — Burrillville runs its own portal. Inspections can be requested inline. - Administrative ADU review (~14d)
Burrillville Zoning reviews administratively; no Zoning Board hearing for by-right ADUs. The Building, Zoning & Planning office cross-routes any wetland-buffer or affordable-housing flags. - Plan review and trade inspections (~14d)
Plan review and trade inspections through Burrillville Building Department. The integrated Building/Zoning/Planning office means corrections route through one staff team rather than multiple departments. - Pay statewide permit fee plus CREW tap fee (~1d)
Pay statewide-formula permit fees per 510-RICR-00-00-21 plus CREW water tap fee at issuance (no town impact fee for residential ADUs). - Construction inspections
Footing, foundation, frame, rough MEP, insulation, and final inspections — request through the Burrillville online portal. - Certificate of Occupancy (~5d)
Issued by the Burrillville Building Official after final inspection passes.
Viability (permitted uses)
- Long-term rental: yes Long-term rental of ADU explicitly permitted under RIGL §45-24-37(j); RI HOA preemption (§45-24-73) voids conflicting covenants.
- Short-term rental: with-restrictions Burrillville regulates STRs separately from ADU permitting; check town STR ordinance and any HOA covenants.
- Office rental: with-restrictions Detached office rental requires home-occupation permit.
- 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 Agriculture and limited livestock common in rural Burrillville districts; village core has tighter limits.
- Relative support: yes Family-occupied ADU explicitly permitted; statewide §45-24-37(j) by-right treatment.
Contacts
Staff: Steven Detonnancourt (Building Official / Inspector), Tom Kravitz (Town Planner)
Utilities
- Water: Clear River Electric & Water District (CREW) — formed 2025-01-01 · 28d connect · $1,850
- Sewer: Burrillville sewer in Harrisville village core; OWTS (RIDEM) in outlying parcels · 30d connect · $6,500
- Electric: Clear River Electric & Water District (CREW) for Harrisville/Pascoag · 14d connect · $1,800
- Gas: Rhode Island Energy (gas) where available; propane elsewhere · 21d connect · $1,500
Property values & taxes
Construction timeline
Realistic total: best 8mo · typical 12mo · worst 18mo
Modular pathway inspectors are occasional with modular
Financing
State ADU loans:
Insurance impact
HOA prevalence & preemption
RIGL §45-24-73 voids conflicting HOA covenants. HOAs are uncommon in Burrillville; most parcels are unrestricted single-family lots.
Regulatory overlays (2)
- watershed
Round Top Reservoir / Pascoag Reservoir buffers route to Burrillville Conservation Commission for wetland/buffer review. - historic-district
Harrisville village core includes the Stillwater Mill Complex / Clocktower Building historic resources; some parcels trigger historic-design review.
Technical envelope (climate & building code)
Climate & energy code
Building code
Amendments:
- Amendment
- Amendment
Legal history (timeline)
Current ordinance: Burrillville Town Code Chapter 30 (Zoning); inclusionary affordable-housing amendments, adopted 1995-01-01, last amended 2024-01-01
- 2023-07-31 — Burrillville launches town online permit system (city-procedure)
Burrillville moved to its own online permit system on 2023-07-31. Permits filed through the new system can request inspections inline.
Effect: Replaced paper intake with a Burrillville-specific online portal (separate from the statewide permits.ri.gov). - 2024-01-01 — Burrillville Affordable Housing provisions take effect (city-ordinance)
Town adopted an inclusionary affordable-housing framework under Chapter 30; relevant to multi-unit and adaptive-reuse projects but ADUs remain by-right administrative.
Effect: ADU applicants in Harrisville continue under the administrative path; affordable inclusionary requirements do not apply to single-family ADUs. - 2024-06-25 — RI H 7062 / S 2998 — statewide ADU preemption (state-law)
Amended RIGL §45-24-37(j) to require by-right ADUs on every single-family lot; §45-24-73 voids conflicting HOA restrictions.
Effect: Burrillville Chapter 30 was conformed to the statewide minimums; Zoning Board hearings are no longer required for by-right ADUs. - 2025-01-01 — Clear River Electric & Water District (CREW) formed (utility-merger)
Effective 2025-01-01 the former Harrisville Fire District water department merged with Pascoag Utility District to form CREW (Clear River Electric & Water District) — Burrillville's combined water/electric district covering Harrisville and Pascoag villages.
Effect: ADU water and electric service in Harrisville now route through CREW; tap fees and service-availability letters issue from CREW rather than the legacy fire district.
Known issues (3)
- issue —
- issue —
- issue —
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.
- R.I.G.L. § 45-24-73 — Design standards required for accessory dwelling units; Consistent statewide treatment of accessory dwelling units required — Core ADU standards added by H 7062 (2024). Requires municipalities to permit ADUs by-right. Caps 1-bedroom and studio ADUs at 900 sqft or 60% of the principal dwelling's floor area, whichever is less. Caps 2-bedroom ADUs at 1,200 sqft or 60%, whichever is less. Prohibits owner-occupancy requirements. Caps additional parking at 1 off-street space per bedroom. Prohibits ADU-specific impact fees. Voids HOA, condominium, and similar private-covenant restrictions that conflict with the statute as against public policy.
- H 7062 (2024 RI General Assembly) — An Act Relating to Housing — Accessory Dwelling Units — The enacting bill. Also cited by municipalities adopting conforming ordinances (Providence 2024 Chapter 3584, East Providence 2024 ADU Ordinance, South Kingstown 2024-07-12 regulations).
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 Codes
- 02830
- 02839
Post Office
- 131 Harrisville Main St, 02830