FutureLot
ADU rules for Casselberry

Accessory Dwelling Unit (ADU) Rules for Casselberry, FL

Is your property eligible for an ADU?

# of Properties
7,617
Owner-occupied
75%
Zoning districts
23
Avg Home Value
$316,912
Median Lot Size
0.18 acres
Avg Income
$70,196
Residential Types:
7,617 housing units
Single Family
92%
Other
8%
Zoning Districts:
10,141 parcels · 23 districts
R-9
24%(2,469)
RMF-13
22%(2,227)
PRD
11%(1,113)
RMH-8
9%(894)
Other
34%(3,438)

ADU Rules

What can you build in Casselberry, FL?

Casselberry, FL follows state and local rules for Accessory Dwelling Units. Here is a concise overview of the local rules.

ADU State Law

What can you build in Florida?

  • Florida does not have a statewide ADU mandate. There is no state-level requirement for cities or counties to allow ADUs.
  • ADUs in Florida are regulated entirely at the local level. Some jurisdictions allow ADUs broadly, others allow them with strict conditions, and some prohibit them altogether.
  • Florida Statute 163.31771 is optional. It allows local governments to adopt ADU ordinances for affordable housing, but it does not require any jurisdiction to allow ADUs, and local governments may adopt ADU rules outside of this statute.
  • County and city rules may differ. In unincorporated areas, county zoning controls whether ADUs are allowed; within city limits, municipal zoning codes apply.

What's allowed on your lot?

These are the municipality-wide rules. What's allowed on a specific property also depends on state laws, setbacks, floor area ratio, lot coverage, environmental constraints, topography, and other property-specific factors. Search your address on FutureLot to see what's allowed on your property.

Check my property

How can we help you?

Get matched with trusted local builders
Understand what's allowed on your property
Learn the key rules and size limits for ADUs

Is your property eligible for an ADU?

ADU rules in other Florida municipalities

Rules change at the town line. Check the municipality your property is actually in.

Seminole County