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ADU Rules in Orlando, Florida

Complete guide to building an Accessory Dwelling Unit in Orlando — zoning, setbacks, permits, costs, and more.

Max Size: 500 sq ft on a lot meeting the base minimum, or 1,000 sq ft on a larger lot in the R-1 districts (Sec. 58.501(C)); no code minimum size. House plus ADU floor area is capped at 0.50 FAR (0.40 in Colonialtown R-2A/T/SP), the ADU must be smaller than the house, and it may cover at most 35% of the backyard. Historic districts: 700 sq ft max by Certificate of Appropriateness. Lake Nona PD: 1,000 sq ft on any lot. Setbacks: Detached: 5 ft if the ADU is 12 ft tall or less (one story), 15 ft if taller (Sec. 58.901(c)); 5 ft separation from the house, 10 ft if over 12 ft tall. Attached: same as the house, 25 ft in R-1A, R-1, R-2A and R-2B (Ch. 58 Part 1B). A two-story ADU under 500 sq ft may ask for a rear-setback Modification of Standards (Sec. 65.302). Parking: Varies Verified: 2026-09-20

Researched by ADU Zoning Hub · verified 2026-09-20 against Orlando planning code and Florida ADU law · methodology · 15 sources cited ↓

ADU Score: 7/10
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Are ADUs allowed in Orlando, FL? [1][2][3][4][5]

Yes. Orlando allows ADUs on most residential lots. A detached unit can be up to 500 sq ft, set 5 ft back from the rear line. Parking varies by lot and unit size. Owner-occupancy is not required, so the unit can be rented out. A building permit is required and applications are reviewed through the standard permit process.

Maximum size500 sq ft on a lot meeting the base minimum, or 1,000 sq ft on a larger lot in the R-1 districts (Sec. 58.501(C)); no code minimum size. House plus ADU floor area is capped at 0.50 FAR (0.40 in Colonialtown R-2A/T/SP), the ADU must be smaller than the house, and it may cover at most 35% of the backyard. Historic districts: 700 sq ft max by Certificate of Appropriateness. Lake Nona PD: 1,000 sq ft on any lot.
SetbacksRear Detached: 5 ft if the ADU is 12 ft tall or less (one story), 15 ft if taller (Sec. 58.901(c)); 5 ft separation from the house, 10 ft if over 12 ft tall. Attached: same as the house, 25 ft in R-1A, R-1, R-2A and R-2B (Ch. 58 Part 1B). A two-story ADU under 500 sq ft may ask for a rear-setback Modification of Standards (Sec. 65.302). · Side Same as the main house in every case (Sec. 58.901(d)): 7.5 ft in R-1A, 6 ft in R-1, 5 ft in R-2A and R-2B; 15 ft on the street side of a corner lot. Any ADU over 500 sq ft in R-2, R-3, MXD or O districts must meet tandem-development setbacks (Ch. 58 Part 3C). Open parking needs 2 ft from the side lot line.
ParkingNone for an ADU of 500 sq ft or less, as long as the house keeps its one code-compliant space (Sec. 58.501(F)(3)). Over 500 sq ft: one extra space, independently accessible from the street, behind the front setback, at least 20 ft from the street-side lot line and not enclosed in the house (Sec. 58.501(F)(2)).
Owner-occupancyNot required. The city states the main house and the ADU may each be owner-occupied or rented to a long-term tenant. Both must stay under one owner; the ADU cannot be sold separately unless the lot is split under the tandem rules (Sec. 58.516).

Do I need a permit to build an ADU in Orlando? [6][7][8][9][10][11]

Yes. Every ADU in Orlando needs a building permit. Review process: Confirm zoning and lot size in the Orlando Information Locator, get a topographic survey and a site plan with ISR and FAR calculations, pass Appearance Review (Sec. 58.501(D); required for any corner lot), then file building, electrical, plumbing and mechanical permits through the Digital Permitting Portal; pay impact fees, pass inspections and get a certificate of occupancy. Historic districts need a Certificate of Appropriateness first..

Permit feesBuilding permit: $64.94 for the first $1,000 of construction cost plus $4.32 per additional $1,000, plus about 10% in surcharges (fee schedule eff. Jan 2023); the city says ADU building-permit fees typically total $450-$1,050. Electrical, plumbing and mechanical permits are extra.
Typical timelineThe city does not publish a fixed review time for ADU permits; check status in the Permitting Services portal. Budget extra time for Appearance Review, which must be approved before building permits (Sec. 58.501(D)).
Official Orlando links:

Three things to know before you build in Orlando

  • Cost basis: Central Florida industry guide updated June 2026 - detached new build $150,000-$320,000 statewide ($200-$260 per sq ft in Central Florida; Orlando 600 sq ft example $150,000-$260,000), garage conversion $40,000-$80,000, prefab $90,000-$200,000; rents are FY2026 HUD Small Area FMRs for Orlando ZIP codes (metro base 1BR $1,760, 2BR $2,000)
  • Do the FAR check first: on a 5,500 sq ft R-2A lot with a 2,300 sq ft house, 0.50 FAR allows 2,750 sq ft total, so the ADU is capped at 450 sq ft even though the lot qualifies for 500 (city example)
  • The ADU Incentive Program pays after certificate of occupancy: keep the master permit number, every fee receipt, construction and design invoices, the lease and the tenant's income or age documents; properties with code liens over $5,000, unpaid taxes or foreclosure are ineligible

Last verified 2026-09-20 against Orlando planning code. How we verify

Orlando allows one ADU by right on lots in every R district plus MXD-1, MXD-2, O-1 and O-2 under City Code Ch. 58 Part 3A (Sec. 58.500-58.501, last amended by Ord. 2018-44). Size is set by your lot: up to 500 sq ft on a lot that meets the base minimum (6,000 sq ft in R-1) or up to 1,000 sq ft on a larger lot (9,000 sq ft in R-1), with house plus ADU capped at 0.50 FAR. No owner-occupancy is required, and an ADU of 500 sq ft or less needs no extra parking. Expect building-permit fees of roughly $450-$1,050 and impact fees of $1,300-$3,100 (city figures, Feb 2026); the city's ADU Incentive Program refunds both and adds up to $10,000 toward construction if you lease the unit to a tenant at or below 120% AMI.

Zoning & Size Requirements [1][2][3][4][5]

Yes — Orlando allows ADUs. A detached ADU can typically be up to 500 sq ft under current Florida and Orlando zoning rules.

See what this means for your lot — ask Orlando ADU builders for a quote →

Allowed ZonesAll R districts (R-1AA, R-1A, R-1, R-1N, R-2A, R-2B, R-3A-R-3D), MXD-1, MXD-2, O-1 and O-2, subject to the lot-size table in Sec. 58.501(C). PD districts case by case (ask City Planning); every residential lot in the Lake Nona PD qualifies. Not allowed on a lot that already has a duplex or tandem dwelling (Sec. 58.501(A)).
Max Size (Detached)500 sq ft on a lot meeting the base minimum, or 1,000 sq ft on a larger lot in the R-1 districts (Sec. 58.501(C)); no code minimum size. House plus ADU floor area is capped at 0.50 FAR (0.40 in Colonialtown R-2A/T/SP), the ADU must be smaller than the house, and it may cover at most 35% of the backyard. Historic districts: 700 sq ft max by Certificate of Appropriateness. Lake Nona PD: 1,000 sq ft on any lot.
Max Size (Attached)Same 500 / 1,000 sq ft tiers and 0.50 FAR cap as a detached unit (Sec. 58.501(C)). Over 500 sq ft in R-2, R-3, MXD or O districts the unit must meet duplex standards, and in R-2A/R-2B it triggers the tandem rules (Sec. 58.501(B)). Size counts all conditioned space connected to the unit; garages, open porches, breezeways and exterior stairs are excluded.
Max Size (JADU)No JADU category in Orlando's code. A space without a full kitchen (sink, stove, refrigerator) is a spare bedroom, not an ADU; a unit that is an ADU must have a bedroom with an egress window, a full bath of at least 30 sq ft and a full kitchen (City Code Sec. 14.10-14.11 and the Florida Building Code).
Max HeightNo ADU-specific cap: the district height limit applies, typically 30 or 35 ft (Ch. 58 Part 1B zoning tables). A two-story ADU is allowed behind a one-story house only if it is smaller in mass than the house. A detached ADU taller than 12 ft needs a 15 ft rear setback and 10 ft building separation; within 50 ft of a lake or wetland the limit is 12 ft (Sec. 58.901).
Max UnitsOne ADU per lot (Sec. 58.501(A)). None where a duplex or tandem dwelling already exists; a third unit means multiplex standards, allowed only in R-2B and higher districts.

Setback Requirements [1][2][3][4][5]

Orlando requires a rear setback of about 5 ft for a detached ADU, and parking requirements vary by unit size or location. Owner-occupancy is not required — you can rent it out without living on the property.

Rear SetbackDetached: 5 ft if the ADU is 12 ft tall or less (one story), 15 ft if taller (Sec. 58.901(c)); 5 ft separation from the house, 10 ft if over 12 ft tall. Attached: same as the house, 25 ft in R-1A, R-1, R-2A and R-2B (Ch. 58 Part 1B). A two-story ADU under 500 sq ft may ask for a rear-setback Modification of Standards (Sec. 65.302).
Side SetbackSame as the main house in every case (Sec. 58.901(d)): 7.5 ft in R-1A, 6 ft in R-1, 5 ft in R-2A and R-2B; 15 ft on the street side of a corner lot. Any ADU over 500 sq ft in R-2, R-3, MXD or O districts must meet tandem-development setbacks (Ch. 58 Part 3C). Open parking needs 2 ft from the side lot line.
Front SetbackNo ADU in the front yard: a detached unit must sit beside or behind the house, never in front of the principal facade or in the front half of the lot (Sec. 58.901(b)). An attached ADU uses the house's front setback (Ch. 58 Part 1B). Required parking must sit behind the front and street-side setbacks.
Parking RequiredNone for an ADU of 500 sq ft or less, as long as the house keeps its one code-compliant space (Sec. 58.501(F)(3)). Over 500 sq ft: one extra space, independently accessible from the street, behind the front setback, at least 20 ft from the street-side lot line and not enclosed in the house (Sec. 58.501(F)(2)).
Owner OccupancyNot required. The city states the main house and the ADU may each be owner-occupied or rented to a long-term tenant. Both must stay under one owner; the ADU cannot be sold separately unless the lot is split under the tandem rules (Sec. 58.516).
Min Lot SizeSec. 58.501(C): for an ADU up to 500 sq ft, R-1AA 10,000 sq ft; R-1A 7,700; R-1 6,000; R-1N, R-2A, R-3A, O-1 5,500; R-2B, R-3B, MXD-1 5,000; R-3C, R-3D, MXD-2, O-2 4,500. For up to 1,000 sq ft: R-1AA 15,000; R-1A 11,550; R-1 9,000; R-1N 8,250; other districts only as tandem development (Part 3C). No minimum in the Lake Nona PD. An undersized lot of record may seek a variance (ADU then capped at 500 sq ft).

Permit Process & Fees [6][7][8][9][10][11]

An ADU permit in Orlando goes through a standard permit review. The city does not publish a fixed review time for ADU permits; check status in the Permitting Services portal. Budget extra time for Appearance Review, which must be approved before building permits (Sec. 58.501(D)). Permit fees: Building permit: $64.94 for the first $1,000 of construction cost plus $4.32 per additional $1,000, plus about 10% in surcharges (fee schedule eff. Jan 2023); the city says ADU building-permit fees typically total $450-$1,050. Electrical, plumbing and mechanical permits are extra.

Approval ProcessConfirm zoning and lot size in the Orlando Information Locator, get a topographic survey and a site plan with ISR and FAR calculations, pass Appearance Review (Sec. 58.501(D); required for any corner lot), then file building, electrical, plumbing and mechanical permits through the Digital Permitting Portal; pay impact fees, pass inspections and get a certificate of occupancy. Historic districts need a Certificate of Appropriateness first.
Review TimelineThe city does not publish a fixed review time for ADU permits; check status in the Permitting Services portal. Budget extra time for Appearance Review, which must be approved before building permits (Sec. 58.501(D)).
Permit FeesBuilding permit: $64.94 for the first $1,000 of construction cost plus $4.32 per additional $1,000, plus about 10% in surcharges (fee schedule eff. Jan 2023); the city says ADU building-permit fees typically total $450-$1,050. Electrical, plumbing and mechanical permits are extra.
Impact Fees$1,300-$3,100 typical (city estimate, Feb 2026). Sewer benefit fee $1,319.50 flat; transportation and parks fees only if house plus ADU crosses a size tier (e.g. $1,424 transportation for 1,800 + 500 sq ft); school impact fee exempt (Orange County Ord. 2020-35).
Plan CheckNot published; ask Permitting Services (407.246.2271). Allow for pre-screen, routing and review of each trade permit.
Pre-Approved PlansNone yet. The city plans a library of pre-reviewed 'prepackaged' ADU plans sold at a fixed price by the designing firm, expected fall/winter 2026.

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Construction Costs [12]

Building an ADU in Orlando typically costs $150,000-$260,000 ($200-$260 per sq ft); a garage conversion runs $40,000-$80,000.

See what this means for your lot — ask Orlando ADU builders for a quote →

Average Build Cost$150,000-$260,000
Cost per Sq Ft$200-$260
Garage Conversion$40,000-$80,000
Prefab ADU (Installed)$90,000-$200,000

Finance Your ADU Project

Most ADU projects are funded through HELOCs, construction loans, or cash-out refinancing. Compare rates from top lenders.

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Rental Income Potential [13]

A 2-bedroom ADU in Orlando rents for around $1,600-$2,400/mo, an estimated 7-9% annual return.

Avg Rent (1 Bedroom)$1,400-$2,050/mo
Avg Rent (2 Bedroom)$1,600-$2,400/mo
Short-Term RentalRestricted: stays under 30 days need city home-share registration and are not allowed in every situation (orlando.gov/homeshare); a standard long-term lease is allowed
Est. Annual ROI7-9% annual return

Explore Prefab ADU Options

Prefab ADUs can save 20-40% vs. traditional construction and cut build time in half.

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Recent Law Changes

What's Changed Recently

  • 2026-02: City of Orlando launched the ADU Incentive Program - 100% rebate of building-permit and park, transportation and sewer impact fees plus up to $10,000 toward construction for owners who lease the ADU at or below 120% AMI for 12 of the first 24 months (waived for tenants 62+); rebate is paid after certificate of occupancy
  • 2026: The city says a library of pre-reviewed 'prepackaged' ADU plans is expected fall/winter 2026; none is available yet
  • 2026-02 impact-fee sheet: ADUs are exempt from the Orange County school impact fee; sewer benefit fee $1,319.50; transportation and parks fees apply only when house plus ADU crosses a size tier
  • Florida 2026 session: SB 48, which would have required every city and county to allow ADUs in single-family zones, passed the Senate but died in House messages on March 13, 2026; HB 1389 (Ch. 2026-179) contains no ADU provision, so Orlando's own rules govern
  • 2026-09-20 correction: Ch. 58 Part 3A was last amended by Ord. 2018-44 (Sept 4, 2018) and no 2024-2026 ADU code amendment was found; the 500 sq ft minimum, 15/5/20 ft setbacks and 1-space parking rule previously shown here were not in the code and have been replaced with the codified figures

Tips for Building an ADU in Orlando

  • Cost basis: Central Florida industry guide updated June 2026 - detached new build $150,000-$320,000 statewide ($200-$260 per sq ft in Central Florida; Orlando 600 sq ft example $150,000-$260,000), garage conversion $40,000-$80,000, prefab $90,000-$200,000; rents are FY2026 HUD Small Area FMRs for Orlando ZIP codes (metro base 1BR $1,760, 2BR $2,000)
  • Do the FAR check first: on a 5,500 sq ft R-2A lot with a 2,300 sq ft house, 0.50 FAR allows 2,750 sq ft total, so the ADU is capped at 450 sq ft even though the lot qualifies for 500 (city example)
  • The ADU Incentive Program pays after certificate of occupancy: keep the master permit number, every fee receipt, construction and design invoices, the lease and the tenant's income or age documents; properties with code liens over $5,000, unpaid taxes or foreclosure are ineligible
  • A topographic survey is required for every ADU application; the city's May 2026 checklist also requires separate electric and water meters, no building on easements, no change to how rainwater drains and an impervious surface ratio of 55% or less
  • Corner lots and any design that does not copy the house's exterior finish need an Appearance Review Determination before permits; historic districts (/HP overlay) cap the ADU at 700 sq ft and require a Certificate of Appropriateness
  • Lake Nona and the rest of the Southeast Orlando Sector allow a 1,000 sq ft ADU on any residential lot with no FAR limit, the most permissive part of the city

ADU Builders in Orlando

Looking for an ADU builder in Orlando? ADU projects need a contractor experienced with local zoning, the permit process, and utility connections — not every general contractor has built one. We match Orlando homeowners with experienced local ADU contractors who provide free, no-obligation quotes. Getting at least three bids typically saves 20-40% on the same scope.

Sources & References

All data on this page is sourced from official government records and verified market data. View our full methodology.

  1. Accessory Dwelling Units: Step-by-Step Guide - City of Orlando Planning Department — Accessed 2026-09-19
  2. Fact Sheet: Plan an Apartment - Accessory Dwelling Unit (City Code Ch. 58 Part 3A summary, Sept 2023) - City of Orlando Planning Department — Accessed 2026-09-19
  3. Orlando Code of Ordinances Ch. 58 Part 3A - Accessory Dwelling Units, Sec. 58.500-58.501 (Municode; Cloudflare-blocked 2026-09-20) Municipal Code — Accessed 2026-09-20
  4. Sec. 58.501 Design Standards for Accessory Dwelling Units (Ord. 2018-44) - Orlando Code of Ordinances (eLaws mirror) Municipal Code — Accessed 2026-09-20
  5. Sec. 58.901 Accessory Structure Location and Zoning Standards - Orlando Code of Ordinances (eLaws mirror) Municipal Code — Accessed 2026-09-20
  6. Fees - Residential Development (1 or 2 units), effective January 2023 - Orlando Permitting Services fee_schedule — Accessed 2026-09-20
  7. Impact Fees for Accessory Dwelling Units (Feb 2026) - City of Orlando Impact Fee Office fee_schedule — Accessed 2026-09-20
  8. Accessory Dwelling Unit Incentive Program - City of Orlando Planning Department — Accessed 2026-09-20
  9. ADU Incentive Program Application (Feb 2026) - City of Orlando Planning Department — Accessed 2026-09-20
  10. Orlando ADU Pre-Application Checklist v2 (May 2026) - City of Orlando Planning Department — Accessed 2026-09-20
  11. Accessory Dwelling Units Prepackaged Plans - City of Orlando Planning Department — Accessed 2026-09-20
  12. Cost to Build an ADU in Florida (2026) - ADU Florida Info (updated June 2026) industry — Accessed 2026-09-20
  13. FY 2026 Small Area Fair Market Rents - Orlando-Kissimmee-Sanford, FL MSA - HUD User Government Data — Accessed 2026-09-20
  14. Fla. Stat. 163.31771 Accessory dwelling units (2026 Florida Statutes) - Florida Legislature Government Data — Accessed 2026-09-20
  15. SB 48 (2026) Housing - bill history, died in House messages March 13, 2026 - Florida Senate Government Data — Accessed 2026-09-20

Frequently Asked Questions

Can I build an ADU in Orlando?

Yes. ADUs are allowed in All R districts (R-1AA, R-1A, R-1, R-1N, R-2A, R-2B, R-3A-R-3D), MXD-1, MXD-2, O-1 and O-2, subject to the lot-size table in Sec. 58.501(C). PD districts case by case (ask City Planning); every residential lot in the Lake Nona PD qualifies. Not allowed on a lot that already has a duplex or tandem dwelling (Sec. 58.501(A)). in Orlando. The maximum size for a detached ADU is 500 sq ft on a lot meeting the base minimum, or 1,000 sq ft on a larger lot in the R-1 districts (Sec. 58.501(C)); no code minimum size. House plus ADU floor area is capped at 0.50 FAR (0.40 in Colonialtown R-2A/T/SP), the ADU must be smaller than the house, and it may cover at most 35% of the backyard. Historic districts: 700 sq ft max by Certificate of Appropriateness. Lake Nona PD: 1,000 sq ft on any lot.. Owner-occupancy is not required, so you can rent out the ADU.

How much does an ADU cost in Orlando?

ADU construction in Orlando typically costs $150,000-$260,000. Garage conversions run $40,000-$80,000, and prefab ADUs cost $90,000-$200,000.

How much can I rent an ADU for in Orlando?

Average ADU rents in Orlando are $1,400-$2,050/mo for a 1-bedroom and $1,600-$2,400/mo for a 2-bedroom unit.

Do I need parking for an ADU in Orlando?

None for an ADU of 500 sq ft or less, as long as the house keeps its one code-compliant space (Sec. 58.501(F)(3)). Over 500 sq ft: one extra space, independently accessible from the street, behind the front setback, at least 20 ft from the street-side lot line and not enclosed in the house (Sec. 58.501(F)(2)).. Check with Orlando planning department for the latest Florida ADU parking rules, as many states have relaxed requirements in recent years.

How long does it take to get an ADU permit in Orlando?

Orlando does not publish a standard ADU review timeline. check status in the Permitting Services portal. Budget extra time for Appearance Review, which must be approved before building permits (Sec. 58.501(D)). Permit fees: Building permit: $64.94 for the first $1,000 of construction cost plus $4.32 per additional $1,000, plus about 10% in surcharges (fee schedule eff. Jan 2023); the city says ADU building-permit fees typically total $450-$1,050. Electrical, plumbing and mechanical permits are extra.

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Orlando ADU FAQ

Answers to every common question about building an ADU in Orlando — costs, rules, permits, rental income.

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Orlando ADU Costs

Detailed cost breakdown: construction $150,000-$260,000, garage conversion $40,000-$80,000, plus ROI analysis.

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Garage Conversion ADU Guide

Complete guide to costs ($80K-$180K), impact fee savings, and permits for garage-to-ADU conversions.

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Florida ADU Laws: SB 48 Update

Florida's SB 48 ADU mandate failed in the legislature. What this means for Orlando homeowners now.

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About this information: This page is an informational summary of publicly available regulations - it is not legal, financial, or professional advice, and it is not a substitute for confirming requirements with your local planning department. Rules change frequently; always verify current requirements before designing, budgeting, or building. Last verified: 2026-09-20. Contractors we introduce are independent businesses - verify license and insurance directly before hiring. Spotted an error? Tell us - we verify against primary sources and correct quickly.

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