ADU Rules & Zoning in West Palm Beach, Florida (2026)

Updated with 2026 Florida SB-48 Codes

What ADU can you build in your West Palm Beach backyard?

Instantly check eligibility for Accessory Dwelling Units (ADUs), like Guest Houses, Garage Conversions, and In-Law Suites.

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West Palm Beach 2026 ADU Requirements Snapshot

Refreshed from newest archived West Palm Beach original DOCX extract (2026-03-06 upload). Highest risk is false-positive eligibility outside SF14; verify zoning + overlay + current rental ordinance text before design spend.

Download full city guideLast updated: 2026-03-06
Zoning allowanceWest Palm Beach is highly restrictive: accessory apartments are generally allowed only in SF14 (and applicable SF14 historic contexts), not broadly in SF3/SF7/SF11. Parcel-level zoning confirmation is
Size limitsAccessory apartments are commonly capped at about 800 sq ft under current guidance. Buildability is often further constrained by form requirements and lot geometry.
Lot + setbacksProjects must satisfy district lot area/width and setback standards. The source guide emphasizes that many qualifying ADUs must function as accessory garage apartments physically connected to a functi
Height + coverageHeight typically follows district standards (often around 35 ft in base single-family districts), with added controls in historic contexts. Sitewide lot coverage/impervious limits can be binding const
ParkingParking and garage functionality are core review items. Off-street parking layout, access, and continued garage compliance are typically required at permit review.
Rental / occupancyShort-term rentals are broadly restricted in residential zones; source guidance indicates long-term frameworks (commonly 6 months + 1 day minimum) for compliant rental use.
Permit processTypical path: zoning eligibility confirmation -> design/permitting -> inspections. Projects outside clear standards may require discretionary relief (e.g., Special Use/variance), and historic districts add review steps.

What this means for your lot

  • Use the address checker first to verify parcel-specific zoning.
  • Confirm setbacks and lot geometry before spending on plans.
  • Check short-term rental rules carefully — they vary significantly by city.

Key gotchas

  • Most restrictive jurisdiction eligibility in Florida — SF14 only, excludes most residential zones
  • Garage apartment requirement means ADU must connect to an actively-used garage structure
  • Extremely high construction costs due to Palm Beach County HVHZ wind requirements
Florida SB-48 (2026 update): Under Florida's statewide ADU law, most single-family homeowners have the right to build an ADU by-right. Local municipalities cannot impose size limits below 1,000 sq ft or require owner-occupancy as a condition of building. If you believe a local denial violates SB-48, consult a Florida land-use attorney.

Building Limits

  • Max Size:800 sq ft
  • Detached Allowed?No
  • Build Cost Est.:$100,000–$300,000 (Palm Beach County HVHZ)
  • Min Rental Period:183 days

Rental Rules

Owner-Occupancy Required: You must live in either the primary home or the ADU.

Short-Term Rentals Prohibited: Minimum 183-day stay required in West Palm Beach.

Estimated Monthly Income

$1,800–$3,000/month

Based on 2025–2026 West Palm Beach market data

Key ADU Restrictions in West Palm Beach

  • ADUs ONLY permitted in SF14 (Single-Family High Density) zoning district — not SF3, SF7, SF11
  • Short-term rentals prohibited — minimum 6 months and 1 day (183 days)
  • Accessory Garage Apartments must be physically connected to an operating garage

Common Mistakes to Avoid in West Palm Beach

  • Most restrictive jurisdiction eligibility in Florida — SF14 only, excludes most residential zones
  • Garage apartment requirement means ADU must connect to an actively-used garage structure
  • Extremely high construction costs due to Palm Beach County HVHZ wind requirements

Eligible Zones in West Palm Beach

SF14

West Palm Beach ADU — Frequently Asked Questions

Can I build an ADU in West Palm Beach, Florida?

West Palm Beach is highly restrictive: accessory apartments are generally allowed only in SF14 (and applicable SF14 historic contexts), not broadly in SF3/SF7/SF11. Parcel-level zoning confirmation is the first gating step.

What is the maximum ADU size in West Palm Beach?

Accessory apartments are commonly capped at about 800 sq ft under current guidance. Buildability is often further constrained by form requirements and lot geometry.

Do I need to be an owner-occupant to build an ADU in West Palm Beach?

West Palm Beach requires owner-occupancy — you must live in either the primary home or the ADU.

Can I use my West Palm Beach ADU as an Airbnb?

Short-term rentals under 183 days are prohibited in West Palm Beach. The minimum rental period is 183 days.

How do I get an ADU permit in West Palm Beach?

Typical path: zoning eligibility confirmation -> design/permitting -> inspections. Projects outside clear standards may require discretionary relief (e.g., Special Use/variance), and historic districts add review steps.

Nearby Cities — ADU Rules

Boca RatonView ADU Rules →Delray BeachView ADU Rules →Lake Worth BeachView ADU Rules →

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This page provides general information based on current ordinances and publicly available data as of March 2026. Zoning rules change — verify all requirements with your local planning department before making financial commitments.