Washington Park

Also known as South Providence, Broad Street, Roger Williams Park neighborhood, Elmwood, Lower South Providence, Edgewood (Cranston), Broad Street Historic District

ADU Pass helps homeowners in Washington Park — a USPS locale inside Providence, Providence 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% slope4%

Soil:

Dominant classUrban land / Udorthents (made land) over coastal fine sand / silt
Expansive clay risk3%
Liquefaction risk35%

Lot profile:

Median lot size4,800 sqft
Median lot width45 ft
Median existing FAR0.4
Parcels with alley access18%
Flag-lot parcels2%

Geo-hazards:

Seismic designationSDC B
Parcels in FEMA SFHA18%
Bedrock depth (median)30 ft
Groundwater depth (median)6 ft

Recent ADU permit activity

Window12 months ending 2026-04-21
Approved / withdrawn / denied0 / 0 / 0

Utility capacity (upgrade likelihood)

Housing stock age:

% built pre-196070%
% built pre-198082%
Median year built1,925

Electric service drop:

% overhead service85%
Panel-upgrade likelihood65%

Sewer lateral:

Replacement likelihood45%
Typical replacement cost$8,500

Water pressure:

ZoneProvidence Water Pressure Zone 2 (low zone)
Typical PSI65 psi

Gas availability: available — Gas service throughout; no gas ban.

Locale property values

Median value$335,000
Median tax$6,566/yr
Effective rate2.0%

Washington Park median runs ~85% of the Providence citywide median (~$395k). Traditionally an affordable working-class South Side neighborhood with strong Cape Verdean, Latino, and West African populations. Roger Williams Park adjacency adds amenity value; Broad Street corridor revitalization pushing slow appreciation.

Locale market rent

Sq ftRent
600$1,720/mo
900$1,960/mo

Locale HOA prevalence

% parcels under HOA3%

Locale overlays (3)

  • flood-zone — Parcels east of Allens Ave toward the harbor fall in FEMA Zone AE / coastal VE near the waterfront. Interior residential Washington Park blocks are Zone X.
    Per-parcel FEMA NFHL lookup required for eastern edge parcels adjacent to Narragansett Bay / Providence Harbor.
  • airport-noise-zone — Washington Park lies under the approach/departure corridor for T.F. Green Airport (~6 mi south); FAA Part 150 60-65 DNL contours may touch southern edge parcels.
    Noise exposure is real on the southern edge; no building-code trigger but relevant to marketability / insulation specs.
  • coastal-commission — RI CRMC jurisdiction applies within 200 ft of the Providence Harbor / Narragansett Bay coastal feature on parcels east of Allens Ave.
    Rhode Island Coastal Resources Management Council (CRMC) review required for coastal parcels.

Inherited from the city

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

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

ADU legality: allowed

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

City cost envelope

$232,100 all-in for a 675 sqft ADU (permit + build). Midpoint scenario.

Permit fee bundle: $4,995 (2026-04).

City viability (selected uses)

Long-term rentalyes
Short-term rentalwith-restrictions
Home officeyes
Relative supportyes
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

  • 02905

Post Office

  • 1284 Broad St, 02905