ADU Rules & Zoning in West Palm Beach, Florida (2026)
What ADU can you build in your West Palm Beach backyard?
Instant zoning report — see exactly what your zoning allows: permitted ADU types, size limits, setbacks, and lot requirements for your specific property.
ADU Rules in West Palm Beach, Florida
We've researched West Palm Beach's ADU rules so you don't have to. Here's what matters most — the facts that determine whether your project is possible, and how much it will cost.
- Maximum ADU size is 800 sq ft (below SB-48 1,000 sq ft baseline) — West Palm Beach's ordinance predates SB-48; confirm if SB-48 now supersedes
- Owner-occupancy IS required in West Palm Beach — investor purchases for ADU rental without residency do not qualify
- SF14 (Single Family — 14 units/acre) is the ONLY zone eligible for ADUs in West Palm Beach — verify your zone first
- 183-day minimum rental stay — prohibits Airbnb/VRBO; West Palm Beach ADUs are long-term rental only
- Palm Beach County HVHZ applies — impact-resistant construction required throughout
- Accessory Garage Apartments must be attached to an operating garage — garage-less properties cannot use this ADU type
- Construction $130,000–$260,000 (HVHZ); rental income $1,600–$2,600/month — strong Palm Beach metro market
Last verified: 2026-03-14
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Backyard ADUs like this are being built across West Palm Beach — here's how to do it right.
Here's exactly what West Palm Beach zoning allows
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.
Zoning allowance
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.
Size limits
Accessory apartments are commonly capped at about 800 sq ft under current guidance. Buildability is often further constrained by form requirements and lot geometry.
Lot + setbacks
Projects 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 functioning garage.
Height + coverage
Height 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 constraints.
Parking
Parking and garage functionality are core review items. Off-street parking layout, access, and continued garage compliance are typically required at permit review.
Rental / occupancy
Short-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 process
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.
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Building limits and rental rules, side by side
These two sets of rules determine what you can build and what income you can expect. Read both before you commit to a design or a rental strategy.
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
ADUs are NOT Permitted In:
- All zones other than SF14 — apartments, condos, commercial, and other residential zones not eligible; SF14 is narrowly defined
- Historic districts (Flamingo Park, Prospect Park, Old Northwood) — Historic Preservation Board review required for ADU designs in designated areas
- Coastal properties along Lake Worth Lagoon — flood zone and CCCL setback requirements may limit ADU placement
Here's exactly what you'll pay — and how to avoid the fees that catch most homeowners off guard
Most homeowners spend 3–4 weeks piecing this together on their own. We've mapped the full West Palm Beach permit process step by step — so you know exactly what's coming, and what to prepare.
Step 1: Pre-Application Zoning Check
- Where:
- West Palm Beach Building Division, 401 Clematis St., West Palm Beach, FL 33401
- Contact:
- (561) 805-6700
- What to bring:
- Property address and parcel ID, preliminary site sketch, lot survey
- Timeline:
- No appointment fee — call ahead to confirm office hours
- Cost:
- No fee for initial inquiry
Step 2: Submit Permit Application
- Where:
- https://wpb.org/Departments/Development-Services/Enterprise-Permitting-Licensing-EPL
- Contact:
- (561) 805-6700
- What to bring:
- Architectural plans, site plan, boundary survey, energy compliance docs
- Timeline:
- Plan review: 4–6 weeks
- Cost:
- $9,100–$17,800 in permits and fees (excluding construction)
Step 3: Plan Review & Revisions
- Where:
- West Palm Beach Building Division
- Contact:
- (561) 805-6700
- What to bring:
- Responses to any correction letters; revised drawings if required
- Timeline:
- Plan review: 4–6 weeks. HPB review (if historic): add 4–8 weeks. Inspections: 6–10 weeks. Total: 4–7 months.
- Cost:
- No additional fee for standard resubmittal
Step 4: Construction & Inspections
- Where:
- West Palm Beach Building Department
- Contact:
- (561) 805-6700
- What to bring:
- Approved permit set must be on-site at all times during construction
- Timeline:
- Schedule inspections as each phase of work is completed
- Cost:
- Included in permit fee
Full West Palm Beach Permit Cost Breakdown
These are the fees you'll encounter, in the order you'll typically encounter them.
| Cost Item | Amount / Notes |
|---|---|
| Total Estimated Cost | $9,100–$17,800 in permits and fees (excluding construction) |
| Building Permit Fee | $2,500–$4,500 (City of West Palm Beach) |
| Impact Fees (Palm Beach County) | $4,500–$8,500 |
| Plan Review Fee | $600–$1,300 |
| Utility Connection Fees | $1,500–$3,500 |
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Key ADU Restrictions in West Palm Beach
These are the rules that most often catch homeowners by surprise. Read them carefully before engaging an architect.
- 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
ADUs are permitted by-right in these zoning districts. Verify your parcel at the county GIS portal — most homeowners can confirm their zone in under 5 minutes.
West Palm Beach neighborhoods where ADU permits are being filed — is your street next?
West Palm Beach ADU — Frequently Asked Questions
These are the questions we hear most often from West Palm Beach homeowners. If yours isn't here, our ADU Zoning Experts can answer it directly.
Why is West Palm Beach's ADU ordinance more restrictive than Florida SB-48?
West Palm Beach adopted its ADU ordinance before Florida SB-48 (2026) was enacted. The city's 800 sq ft cap, SF14 zone restriction, owner-occupancy requirement, and 183-day minimum rental requirement were designed under the old framework. Florida SB-48 now establishes statewide minimums that municipalities may not undercut — it's unclear whether West Palm Beach has updated its ordinance to comply. Call the Building Division at (561) 805-6700 to get current rules before designing.
What is the SF14 zone and how common is it in West Palm Beach?
SF14 (Single Family — 14 units per acre) is a specific residential density designation in West Palm Beach's zoning code. It covers established single-family neighborhoods at moderate density. Not all West Palm Beach single-family properties are in SF14 — some are in lower-density zones (SF7, SF8) or planned developments that may not be eligible. Verify your parcel's exact zone at the West Palm Beach GIS map or call Planning at (561) 822-1450.
Can I build an ADU in one of West Palm Beach's historic districts?
Yes, but with additional review. West Palm Beach has several historic districts (Flamingo Park, Prospect Park, Old Northwood, Grandview Heights). Properties in these districts must have ADU designs reviewed and approved by the Historic Preservation Board (HPB) before building permits are issued. HPB review focuses on architectural compatibility, materials, and scale. Plan for 4–8 additional weeks and consult an architect experienced with the West Palm HPB process.
What does the 183-day minimum rental requirement mean for my income strategy?
West Palm Beach requires a minimum 183-day rental period for ADUs — just over 6 months. This effectively prohibits short-term vacation rentals entirely and requires long-term tenancy agreements. The good news: West Palm Beach's long-term rental market is strong ($1,600–$2,600/month for a well-finished ADU) due to Palm Beach proximity, downtown revitalization, and Norton Museum/arts district attractions. Budget for a long-term tenant model, not STR.
What is an 'Accessory Garage Apartment' in West Palm Beach and how does it differ from an ADU?
West Palm Beach specifically defines 'Accessory Garage Apartments' as a type of ADU that must be physically attached to and above an operating garage. If your property doesn't have an operating garage, this ADU type isn't available. Detached ADUs are a separate category with their own siting requirements. Call West Palm Beach Building at (561) 805-6700 to clarify which ADU configuration applies to your specific property and garage situation.
Find out what ADU you can build in your backyard
— and get a free West Palm Beach ADU guide for your area.
Free report · No commitment · 60 seconds
Find out what ADU you can build in your backyard
— and get a free West Palm Beach ADU guide for your area.
Free report · No commitment · 60 seconds
West Palm Beach Planning Department
We recommend calling West Palm Beach Building Division at (561) 805-6700 before submitting anything — a 10-minute conversation can save weeks of back-and-forth on your permit application.
West Palm Beach Building Division
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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.