Mapleville

1. Confirm Mapleville parcel under Burrillville Chapter 30 (~3d)
   Mapleville is one of several villages within the rural Town of Burrillville (NW Rhode Island, abutting Connecticut and Massachusetts). All zoning, permits, and inspections flow through Burrillville. Pull parcel card from Burrillville Tax Assessor and confirm rural-residential zoning under updated October 2022 maps.
2. Verify septic capacity - private wells and RIDEM ISDS are the rule (~30d)
   Mapleville has no public sewer and no public water; nearly all parcels are on private well + onsite ISDS septic. Adding ADU bedrooms triggers RIDEM ISDS application under Title 250-RICR-150-10-6 (OWTS rules). A licensed designer must perform soil percolation tests and design a system sized for total bedrooms (existing primary + ADU).
3. Submit RIDEM ISDS application directly to state DEM (~45d)
   ISDS application filed via RIDEM Office of Water Resources (235 Promenade St, Providence; 401-222-4700). Fee typically $300-$800 depending on system size; review timeline 30-60 days separate from local permit clock.
4. Submit building permit via RI statewide e-permitting (permits.ri.gov) (~1d)
   Select 'Town of Burrillville' on the portal. Burrillville onboarded 2023-07-31 (most recent of the four NW RI towns). Upload IRC plans, site plan with well and septic locations, and stamped RIDEM ISDS approval.
5. Burrillville Building Department plan review (Harrisville Main Street) (~14d)
   Burrillville Building & Zoning Department, 144 Harrisville Main Street, Harrisville RI 02830, 401-568-4300 ext 128. Hours M-W 8:30-4:30, Th 8:30-7:00 (extended evening uniquely useful), F 8:30-12:30. IRC 2018 with RI amendments.
6. Stormwater management review for Branch River / Clear River watershed (~10d)
   Mapleville drains to the Clear River and Branch River, ultimately feeding the Blackstone. Burrillville applies stricter stormwater controls in the Branch River watershed than other parts of town to protect downstream water quality. New impervious surface may trigger an erosion-control plan.
7. Pay state-formula fees plus Burrillville local surcharges (~1d)
   Fees per RI 510-RICR-00-00-21 (~$19-23 per $1,000 valuation). RIDEM ISDS fee paid separately to state. Harrisville Fire District / Pascoag Fire District (whichever covers parcel) coordinates fire-marshal review.
8. Construction inspections by Burrillville Building Department
   Standard sequence (footing, foundation, framing, MEP rough, insulation, final). Septic 'as-built' inspection coordinated with RIDEM ISDS designer. Fire-related inspections by the parcel's fire district (Harrisville FD or Pascoag FD).
9. Certificate of Occupancy from Burrillville plus RIDEM septic as-built (~7d)
   Final CO from Burrillville Building Official requires the RIDEM ISDS as-built letter on file. Both gate occupancy.

• Long-term rental: yes Long-term rental of ADU explicitly permitted; RIGL 45-24-73 preempts owner-occupancy requirements.
• Short-term rental: with-restrictions STR rules vary by city. Mapleville STR follows Burrillville rules; rural-tourism demand is modest (Buck Hill / Pulaski state forest are nearby attractions).
• 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: yes Burrillville's rural character makes agricultural accessory uses commonplace; livestock generally permitted in rural-residential zones with parcel-size minimums.
• Relative support: yes Family-occupancy ADU explicitly permitted; common rural multigenerational pattern in Mapleville.

Staff: Burrillville Building & Zoning Department (Permits and inspections (Th extended hours to 7:00 PM)), Burrillville Town Clerk (Permit recording / records of decision) townclerk@burrillville.org, RIDEM Office of Water Resources (ISDS septic review (gates Mapleville ADU permits))

• Water: Private well (no PWSB or municipal water in Mapleville village) · 21d connect · $8,500
• Sewer: Private septic / RIDEM ISDS jurisdiction (no public sewer in Mapleville) · 60d connect · $18,000
• Electric: Rhode Island Energy (formerly National Grid RI); Pascoag Utility District serves nearby Pascoag village but NOT Mapleville · 14d connect · $1,800
• Gas: Rhode Island Energy (gas) where service exists; many Mapleville parcels use propane or oil · 21d connect · $1,500

Realistic total: best 8mo · typical 13mo · worst 19mo

Modular pathway inspectors are occasional with modular

State ADU loans:

• RIHousing ADU 203(k) financing
• Rhode Island Executive Office of Housing

RIGL 45-24-73 voids conflicting HOA ADU restrictions. Mapleville's rural large-lot character means almost no HOA presence; closest comparable design control is Burrillville's general subdivision-rules package, not covenants.

• groundwater-protection
  Mapleville drains to Clear River / Branch River watershed feeding the Blackstone. RIDEM ISDS rules and state groundwater-protection requirements apply with stricter setbacks than urban areas.
• rural-conservation
  Burrillville is one of RI's most rural towns; large-lot rural-residential zoning predominates and conservation overlays may apply on parcels adjacent to Buck Hill Management Area or Pulaski Memorial State Forest.