Apponaug

Also known as Apponaug Village, Apponaug Four Corners, Apponaug Village Historic District, Old Warwick, Warwick Neck, Cowesett, Centerville

ADU Pass helps homeowners in Apponaug — a USPS locale inside Warwick, No County, Rhode Island — navigate the permit paperwork for building an accessory dwelling unit. This locale covers 1 ZIP code.

1 ZIP code

Locale-specific ADU details

Site (parcel physics)

Slope:

Mean slope3%
Parcels over 12% slope3%

Soil:

Dominant classUrban land / Merrimac series (glaciofluvial outwash)
Expansive clay risk8%
Liquefaction risk12%

Lot profile:

Median lot size8,500 sqft
Median lot width60 ft
Median existing FAR0.35
Parcels with alley access8%
Flag-lot parcels4%

Geo-hazards:

Seismic designationB
Parcels in FEMA SFHA12%
Bedrock depth (median)25 ft
Groundwater depth (median)8 ft

Recent ADU permit activity

Approved / withdrawn / denied0 / 0 / 0

Utility capacity (upgrade likelihood)

Housing stock age:

% built pre-196062%
% built pre-198078%
Median year built1,935

Electric service drop:

% overhead service88%
Panel-upgrade likelihood65%

Sewer lateral:

Replacement likelihood45%
Typical replacement cost$10,000

Water pressure:

ZoneKent County Water Authority - Warwick mid-pressure zone
Typical PSI60 psi
Sprinkler trigger PSI40 psi

Gas availability: available — Natural gas available throughout Apponaug village; no electrification mandate in RI.

Locale property values

Median value$410,000
Median tax$7,626/yr
Effective rate1.9%

Apponaug parcels run $325K-$525K for typical 1900-1940 frame SFH with pockets of mill-era multifamily. Historic village character supports above-citywide values; ZIP 02886 covers much of central Warwick including Apponaug and Warwick Neck.

Locale market rent

Sq ftRent
400$1,640/mo
600$1,760/mo
1,000$2,210/mo

Locale HOA prevalence

% parcels under HOA5%

Apponaug's historic village character (1890-1940 SFH stock) pre-dates HOA-era development. Estimated HOA prevalence 4-6% covers a small number of condo conversions and mid-century infill subdivisions. Below Warwick citywide 15%. Primary-source HOA-flag counts not available; replace with assessor data when accessible.

Locale overlays (5)

  • historic-district — Apponaug Village Historic District (NRHP-listed); covers village core along Post Road, Greenwich Ave, Centerville Road · +45d · +10% cost
    RIHPHC and local design-review oversight for exterior-visible work on contributing structures. Apponaug's historic fabric is defining.
  • coastal-commission — CRMC jurisdiction (R.I.G.L. section 46-23) applies within 200 ft of Apponaug Cove mean high water; also along the tidal Pawtuxet reach · +60d · +8% cost
  • flood-zone — Pawtuxet River floodplain and Apponaug Cove tidal flooding (FEMA AE zone) · +21d · +8% cost
    Parcels within 1/4 mile of Apponaug Cove or the Pawtuxet may require elevation certificates.
  • wetland-overlay — CRMC tidal wetlands around Apponaug Cove; RIDEM freshwater wetlands along Pawtuxet River · +45d · +5% cost
  • airport-noise-zone — T.F. Green Airport (KPVD) FAA Part 77 height surface and Part 150 noise contours cover southern Apponaug; DNL 65+ contours reach parts of the village · +30d · +8% cost
    Noise-attenuation construction requirements on new residential in DNL 65+ contour.

Inherited from the city

These sections come from the city page. Click through to the Warwick ADU research for details.

  • ADU legality
  • legal history
  • size range
  • permitting process & fees
  • permit forms
  • contacts
  • utilities
  • incentives
  • resale value impact
  • construction timeline
  • pre-approved plans
  • financing
  • insurance impact
  • service complexity
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.

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

  • 02887

Post Office

  • 3205 Post Rd, 02886