IMPACTFEES.ORG

Key Biscayne, Florida Impact Fees

Key Biscayne applies its own fee schedule: municipal fees plus the Miami-Dade County-levied fees that apply inside city limits. Combined, a new single-family home pays at least $13,190.90 per unit (rates sourced July 14, 2026). 3 additional fees have no published standard amounts and are not included, so the full cost may be higher; verify before budgeting. The full breakdown is below.

Key Biscayne impact fees by project type

Key Biscayne: Single-Family Impact Fees

A new single-family home in Key Biscayne pays at least $13,190.90 per unit in impact fees (rates sourced July 14, 2026). Of that, Miami-Dade County-levied fees account for $11,723.00 and municipal or utility fees for $1,467.90.

The largest line items are Road (Mobility) Impact Fee (Miami-Dade County) ($9,275.00), Educational Facilities (School) Impact Fee (Miami-Dade County) ($2,448.00) and Sewer Connection Charge (Miami-Dade WASD) ($1,176.00).

Parks & Recreation Impact Fee (Village of Key Biscayne), Police Impact Fee (Village of Key Biscayne), and Fire Impact Fee (Village of Key Biscayne) are set by the city and have no published standard rate. Contact the levying jurisdiction or utility to verify before budgeting; they are not included as dollar figures here.

View the full fee schedule
Water$291.90
Sewer$1,176.00
City$0.00
County$11,723.00
Total (Key Biscayne): $13,190.90
Sources last checked July 14, 2026Official fee schedules:Miami-Dade Water & Sewer Department (WASD) Village of Key Biscayne Miami-Dade County
Fees flagged "Requires confirmation" have no confirmed published amount. Confirm them with the jurisdiction or utility before budgeting.

Where in Miami-Dade County are you building?

Each jurisdiction applies its own fee schedule. Pick yours. = one or more fees are unconfirmed or have no published amount; the figure shown may not be the complete cost.

Unincorporated Miami-Dade County$17,866.55Aventura$13,718.45Includes unconfirmed feesBal Harbour$13,718.45Includes unconfirmed feesBay Harbor Islands$13,718.45Includes unconfirmed feesBiscayne Park$13,718.45Includes unconfirmed feesCoral Gables$11,859.90Cutler Bay$13,718.45Includes unconfirmed feesDoral$13,718.45Includes unconfirmed feesEl Portal$13,718.45Includes unconfirmed feesFlorida City$12,250.55Includes unconfirmed feesGolden Beach$13,426.55Includes unconfirmed feesHialeah$13,190.90Includes unconfirmed feesHialeah Gardens$12,250.55Includes unconfirmed feesHomestead$12,250.55Includes unconfirmed feesIndian Creek$13,718.45Includes unconfirmed fees
Key Biscayne$13,190.90this pageIncludes unconfirmed fees
Medley$13,718.45Includes unconfirmed feesMiami$13,190.90Includes unconfirmed feesMiami Beach$13,190.90Includes unconfirmed feesMiami Gardens$13,718.45Includes unconfirmed feesMiami Lakes$17,866.55Includes unconfirmed feesMiami Shores$13,718.45Includes unconfirmed feesMiami Springs$13,718.45Includes unconfirmed feesNorth Bay Village$13,718.45Includes unconfirmed feesNorth Miami$21,979.55Includes unconfirmed feesNorth Miami Beach$15,041.45Includes unconfirmed feesOpa-locka$13,718.45Includes unconfirmed feesPalmetto Bay$17,866.55Includes unconfirmed feesPinecrest$13,718.45Includes unconfirmed feesSouth Miami$13,718.45Includes unconfirmed feesSunny Isles Beach$13,718.45Includes unconfirmed feesSurfside$13,718.45Includes unconfirmed feesSweetwater$13,718.45Includes unconfirmed feesVirginia Gardens$13,718.45Includes unconfirmed feesWest Miami$13,718.45Includes unconfirmed fees

Key Biscayne: Multifamily Impact Fees

A new multifamily unit in Key Biscayne pays at least $6,020.65 per unit in impact fees (rates sourced July 14, 2026). Of that, Miami-Dade County-levied fees account for $5,077.00 and municipal or utility fees for $943.65.

The largest line items are Road (Mobility) Impact Fee - Mid/High-Rise (Miami-Dade County) (MF) ($4,465.00), Sewer Connection Charge (Miami-Dade WASD) (MF) ($756.00) and Educational Facilities (School) Impact Fee (Miami-Dade County) (MF) ($612.00).

Police Impact Fee (Village of Key Biscayne, MF), Fire Impact Fee (Village of Key Biscayne, MF), and Parks & Recreation Impact Fee (Village of Key Biscayne, MF) are set by the city and have no published standard rate. Contact the levying jurisdiction or utility to verify before budgeting; they are not included as dollar figures here.

Some fees are tiered by unit size or building type; amounts reflect the representative tier noted in the schedule below.

View the full fee schedule
Water$187.65
Sewer$756.00
City$0.00
County$5,077.00
Total (Key Biscayne): $6,020.65
Sources last checked July 14, 2026Official fee schedules:Miami-Dade Water & Sewer Department (WASD) Village of Key Biscayne Miami-Dade County
Fees flagged "Requires confirmation" have no confirmed published amount. Confirm them with the jurisdiction or utility before budgeting.

Where in Miami-Dade County are you building?

Each jurisdiction applies its own fee schedule. Pick yours. = one or more fees are unconfirmed or have no published amount; the figure shown may not be the complete cost.

Unincorporated Miami-Dade County$9,405.62Aventura$6,548.20Includes unconfirmed feesBal Harbour$6,548.20Includes unconfirmed feesBay Harbor Islands$6,548.20Includes unconfirmed feesBiscayne Park$6,548.20Includes unconfirmed feesCoral Gables$7,647.65Cutler Bay$6,548.20Includes unconfirmed feesDoral$6,548.20Includes unconfirmed feesEl Portal$6,548.20Includes unconfirmed feesFlorida City$5,604.55Includes unconfirmed feesGolden Beach$6,360.55Includes unconfirmed feesHialeah$6,020.65Includes unconfirmed feesHialeah Gardens$5,604.55Includes unconfirmed feesHomestead$5,604.55Includes unconfirmed feesIndian Creek$6,548.20Includes unconfirmed fees
Key Biscayne$6,020.65this pageIncludes unconfirmed fees
Medley$6,548.20Includes unconfirmed feesMiami$6,020.65Includes unconfirmed feesMiami Beach$6,020.65Includes unconfirmed feesMiami Gardens$6,548.20Includes unconfirmed feesMiami Lakes$9,405.62Includes unconfirmed feesMiami Shores$6,548.20Includes unconfirmed feesMiami Springs$6,548.20Includes unconfirmed feesNorth Bay Village$6,548.20Includes unconfirmed feesNorth Miami$15,778.55Includes unconfirmed feesNorth Miami Beach$7,398.70Includes unconfirmed feesOpa-locka$6,548.20Includes unconfirmed feesPalmetto Bay$9,405.62Includes unconfirmed feesPinecrest$6,548.20Includes unconfirmed feesSouth Miami$6,548.20Includes unconfirmed feesSunny Isles Beach$6,548.20Includes unconfirmed feesSurfside$6,548.20Includes unconfirmed feesSweetwater$6,548.20Includes unconfirmed feesVirginia Gardens$6,548.20Includes unconfirmed feesWest Miami$6,548.20Includes unconfirmed fees

Key Biscayne: Commercial Impact Fees

Commercial development in Key Biscayne pays $11.54 per square foot in impact fees (rates sourced July 14, 2026).

For a 50,000 sq ft building, that comes to at least $576,850.00. The calculator below adjusts to your exact square footage.

The largest line items are Road (Mobility) Impact Fee (Miami-Dade County, Commercial) ($11.54/sq ft).

Sewer Connection Charge (Miami-Dade WASD) and Water Connection Charge (Miami-Dade WASD) are set by the utility and not published online. Contact the levying jurisdiction or utility to verify before budgeting; they are not included as dollar figures here.

View the full fee schedule
Water$0.00
  • Water Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Key Biscayne runs no water or sewer utility (its Code has no utilities chapter — Ch. 29.1 only creates a special-assessment mechanism); WASD is the retail provider. WASD prices NONRESIDENTIAL connection charges PER AVERAGE DAILY GALLON of estimated demand — there is no nonres meter-size ladder. $1.39 per gallon per day (water).
    Contact jurisdiction/utility to verify
Sewer$0.00
  • Sewer Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Miami-Dade WASD nonresidential sewer connection charge: $5.60 per average daily gallon of estimated demand. No meter-size ladder for nonres. WASD is Key Biscayne's water and sewer provider.
    Contact jurisdiction/utility to verify
City$0.00
  • Municipal Impact Fee (Village of Key Biscayne, Commercial)
    Village of Key Biscayne
    CONFIRMED $0 — the Village levies NO impact fee of any kind. Proved from the complete Municode chapter list: Chs. 1, 2, 4, 5, 6, 7, 8, 9, 10, 17, 19, 20, 21, 22, 23, 25, 26, 29, 29.1, 30, 31 + Appendices — no impact-fee chapter or article. The two chapters that look like candidates are not impact fees: Ch. 29.1 is SPECIAL ASSESSMENTS for roads/water/sewer/street lighting (a benefit assessment on existing property, not a development fee), and Ch. 31 (Parks & Recreational Open Space Lands Trust Fund, Sec. 31-1(b)) is funded solely by borrowings, grants, Council allocations and >=1% of AD VALOREM TAXES — no development exaction. This CONFIRMS the residential pass's three 'VERIFY 305-365-5511' placeholders (park, police, fire).
    $0.00
County$11.54/sq ft
  • Road (Mobility) Impact Fee (Miami-Dade County, Commercial)
    Miami-Dade County
    Multimodal Mobility Impact Fee, Code Ch. 33E (Ord. 23-68). Countywide incl. all municipalities. Schedule row: 'Shopping Plaza (40-150 kgsf) w/o Supermarket', Context Zone 2 ($11.537/sf). Key Biscayne is NAMED in Code Sec. 33E-7.1(b)(2) as a Zone 2 municipality, so the zone is confirmed. Basis: gross sq ft. Excludes the 2% admin fee.
    $11.54/sq ft
  • Police Impact Fee (Miami-Dade County, Commercial)
    Miami-Dade County
    CONFIRMED $0. Code Sec. 33I-1(b) limits the county police impact fee to UNINCORPORATED Miami-Dade County. Key Biscayne has its own Village police department.
    $0.00
  • Fire-Rescue Impact Fee (Miami-Dade County, Commercial)
    Miami-Dade County Fire Rescue District
    CONFIRMED $0. Code Sec. 33J-1(b) applies the fire-rescue impact fee only within the Miami-Dade Fire Rescue District — 'unincorporated Miami-Dade County and all municipalities SERVED BY THE DISTRICT.' Key Biscayne runs its own Village Fire Rescue Department and is NOT in the district, so no county fire impact fee is due. (Confirms the residential pass's reading.) Key Biscayne also levies no municipal fire impact fee (no impact-fee chapter in its Code).
    $0.00
Total (Key Biscayne): $11.54/sq ft (≈ $576,850.00 at 50,000 sq ft)
Sources last checked July 14, 2026Official fee schedules:Miami-Dade Water and Sewer Department Village of Key Biscayne Miami-Dade County Miami-Dade County Fire Rescue District

Where in Miami-Dade County are you building?

Each jurisdiction applies its own fee schedule. Pick yours. Totals shown are for a 50,000 sq ft building, including one-time water/sewer fees (assuming a 1-inch meter). = one or more fees are unconfirmed or have no published amount; the figure shown may not be the complete cost.

Unincorporated Miami-Dade County$685,145.00Includes unconfirmed feesAventura$661,260.00Includes unconfirmed feesBal Harbour$661,812.00Includes unconfirmed feesBay Harbor Islands$606,360.00Includes unconfirmed feesBiscayne Park$662,135.00Includes unconfirmed feesCoral Gables$810,570.00Cutler Bay$697,760.00Includes unconfirmed feesDoral$669,960.00El Portal$661,260.00Includes unconfirmed feesFlorida City$953,330.00Includes unconfirmed feesGolden Beach$661,260.00Includes unconfirmed feesHialeah$675,201.50Hialeah Gardens$661,260.00Includes unconfirmed feesHomestead$714,669.56Includes unconfirmed feesIndian Creek$605,060.00Includes unconfirmed fees
Key Biscayne$576,850.00this page
Medley$667,560.00Includes unconfirmed feesMiami$836,040.00Includes unconfirmed feesMiami Beach$1,253,000.00Miami Gardens$816,260.00Includes unconfirmed feesMiami Lakes$1,514,283.50Includes unconfirmed feesMiami Shores$605,060.00Includes unconfirmed feesMiami Springs$605,060.00Includes unconfirmed feesNorth Bay Village$606,982.03Includes unconfirmed feesNorth Miami$1,001,308.00Includes unconfirmed feesNorth Miami Beach$808,323.00Includes unconfirmed feesOpa-locka$729,448.00Includes unconfirmed feesPalmetto Bay$948,310.00Includes unconfirmed feesPinecrest$661,260.00Includes unconfirmed feesSouth Miami$661,260.00Includes unconfirmed feesSunny Isles Beach$929,410.00Includes unconfirmed feesSurfside$605,060.00Includes unconfirmed feesSweetwater$877,110.00Includes unconfirmed feesVirginia Gardens$661,260.00Includes unconfirmed feesWest Miami$661,260.00Includes unconfirmed fees

Key Biscayne: Industrial Impact Fees

Industrial development in Key Biscayne pays $4.76 per square foot in impact fees (rates sourced July 14, 2026).

For a 50,000 sq ft building, that comes to at least $238,000.00. The calculator below adjusts to your exact square footage.

The largest line items are Road (Mobility) Impact Fee (Miami-Dade County, Industrial) ($4.76/sq ft).

Sewer Connection Charge (Miami-Dade WASD) and Water Connection Charge (Miami-Dade WASD) are set by the utility and not published online. Contact the levying jurisdiction or utility to verify before budgeting; they are not included as dollar figures here.

View the full fee schedule
Water$0.00
  • Water Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Key Biscayne runs no water or sewer utility (its Code has no utilities chapter — Ch. 29.1 only creates a special-assessment mechanism); WASD is the retail provider. WASD prices NONRESIDENTIAL connection charges PER AVERAGE DAILY GALLON of estimated demand — there is no nonres meter-size ladder. $1.39 per gallon per day (water).
    Contact jurisdiction/utility to verify
Sewer$0.00
  • Sewer Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Miami-Dade WASD nonresidential sewer connection charge: $5.60 per average daily gallon of estimated demand. No meter-size ladder for nonres. WASD is Key Biscayne's water and sewer provider.
    Contact jurisdiction/utility to verify
City$0.00
  • Municipal Impact Fee (Village of Key Biscayne, Industrial)
    Village of Key Biscayne
    CONFIRMED $0 — no impact-fee chapter or article anywhere in the Key Biscayne Code (complete chapter list checked). Industrial use is not a permitted district under Ch. 30 zoning (island is residential/commercial/civic only), so this rate is theoretical.
    $0.00
County$4.76/sq ft
Total (Key Biscayne): $4.76/sq ft (≈ $238,000.00 at 50,000 sq ft)
Sources last checked July 14, 2026Official fee schedules:Miami-Dade Water and Sewer Department Village of Key Biscayne Miami-Dade County Miami-Dade County Fire Rescue District

Where in Miami-Dade County are you building?

Each jurisdiction applies its own fee schedule. Pick yours. Totals shown are for a 50,000 sq ft building, including one-time water/sewer fees (assuming a 1-inch meter). = one or more fees are unconfirmed or have no published amount; the figure shown may not be the complete cost.

Unincorporated Miami-Dade County$370,565.00Includes unconfirmed feesAventura$346,680.00Includes unconfirmed feesBal Harbour$347,232.00Includes unconfirmed feesBay Harbor Islands$324,730.00Includes unconfirmed feesBiscayne Park$347,555.00Includes unconfirmed feesCoral Gables$326,620.00Cutler Bay$366,680.00Includes unconfirmed feesDoral$355,380.00El Portal$346,680.00Includes unconfirmed feesFlorida City$467,140.00Includes unconfirmed feesGolden Beach$346,680.00Includes unconfirmed feesHialeah$313,199.00Hialeah Gardens$346,680.00Includes unconfirmed feesHomestead$383,739.56Includes unconfirmed feesIndian Creek$323,430.00Includes unconfirmed fees
Key Biscayne$238,000.00this page
Medley$352,980.00Includes unconfirmed feesMiami$282,670.00Includes unconfirmed feesMiami Beach$349,150.00Miami Gardens$501,680.00Includes unconfirmed feesMiami Lakes$368,670.00Includes unconfirmed feesMiami Shores$323,430.00Includes unconfirmed feesMiami Springs$323,430.00Includes unconfirmed feesNorth Bay Village$325,352.03Includes unconfirmed feesNorth Miami$488,778.00Includes unconfirmed feesNorth Miami Beach$485,583.00Includes unconfirmed feesOpa-locka$375,018.00Includes unconfirmed feesPalmetto Bay$466,430.00Includes unconfirmed feesPinecrest$346,680.00Includes unconfirmed feesSouth Miami$346,680.00Includes unconfirmed feesSunny Isles Beach$483,180.00Includes unconfirmed feesSurfside$323,430.00Includes unconfirmed feesSweetwater$408,580.00Includes unconfirmed feesVirginia Gardens$346,680.00Includes unconfirmed feesWest Miami$346,680.00Includes unconfirmed fees

Key Biscayne: Office Impact Fees

Office development in Key Biscayne pays $16.95 per square foot in impact fees (rates sourced July 14, 2026).

For a 25,000 sq ft building, that comes to at least $423,850.00. The calculator below adjusts to your exact square footage.

The largest line items are Road (Mobility) Impact Fee (Miami-Dade County, Office) ($16.95/sq ft).

Sewer Connection Charge (Miami-Dade WASD) and Water Connection Charge (Miami-Dade WASD) are set by the utility and not published online. Contact the levying jurisdiction or utility to verify before budgeting; they are not included as dollar figures here.

View the full fee schedule
Water$0.00
  • Water Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Key Biscayne runs no water or sewer utility (its Code has no utilities chapter — Ch. 29.1 only creates a special-assessment mechanism); WASD is the retail provider. WASD prices NONRESIDENTIAL connection charges PER AVERAGE DAILY GALLON of estimated demand — there is no nonres meter-size ladder. $1.39 per gallon per day (water).
    Contact jurisdiction/utility to verify
Sewer$0.00
  • Sewer Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Miami-Dade WASD nonresidential sewer connection charge: $5.60 per average daily gallon of estimated demand. No meter-size ladder for nonres. WASD is Key Biscayne's water and sewer provider.
    Contact jurisdiction/utility to verify
City$0.00
  • Municipal Impact Fee (Village of Key Biscayne, Office)
    Village of Key Biscayne
    CONFIRMED $0 — no impact-fee chapter or article anywhere in the Key Biscayne Code (complete chapter list checked). Ch. 31 PROS Lands Trust Fund is ad-valorem/grant funded (Sec. 31-1(b)), not a development exaction; Ch. 29.1 is a special-assessment mechanism, not an impact fee.
    $0.00
County$16.95/sq ft
Total (Key Biscayne): $16.95/sq ft (≈ $423,850.00 at 25,000 sq ft)
Sources last checked July 14, 2026Official fee schedules:Miami-Dade Water and Sewer Department Village of Key Biscayne Miami-Dade County Miami-Dade County Fire Rescue District

Where in Miami-Dade County are you building?

Each jurisdiction applies its own fee schedule. Pick yours. Totals shown are for a 25,000 sq ft building, including one-time water/sewer fees (assuming a 1-inch meter). = one or more fees are unconfirmed or have no published amount; the figure shown may not be the complete cost.

Unincorporated Miami-Dade County$487,595.00Includes unconfirmed feesAventura$475,652.50Includes unconfirmed feesBal Harbour$476,204.50Includes unconfirmed feesBay Harbor Islands$435,627.50Includes unconfirmed feesBiscayne Park$476,527.50Includes unconfirmed feesCoral Gables$569,620.00Cutler Bay$487,652.50Includes unconfirmed feesDoral$480,002.50El Portal$475,652.50Includes unconfirmed feesFlorida City$690,247.50Includes unconfirmed feesGolden Beach$475,652.50Includes unconfirmed feesHialeah$493,483.00Hialeah Gardens$475,652.50Includes unconfirmed feesHomestead$509,687.06Includes unconfirmed feesIndian Creek$434,327.50Includes unconfirmed fees
Key Biscayne$423,850.00this page
Medley$481,952.50Includes unconfirmed feesMiami$485,405.00Includes unconfirmed feesMiami Beach$543,500.00Miami Gardens$553,152.50Includes unconfirmed feesMiami Lakes$530,854.00Includes unconfirmed feesMiami Shores$434,327.50Includes unconfirmed feesMiami Springs$434,327.50Includes unconfirmed feesNorth Bay Village$436,249.53Includes unconfirmed feesNorth Miami$648,200.50Includes unconfirmed feesNorth Miami Beach$546,424.50Includes unconfirmed feesOpa-locka$486,590.50Includes unconfirmed feesPalmetto Bay$687,177.50Includes unconfirmed feesPinecrest$475,652.50Includes unconfirmed feesSouth Miami$475,652.50Includes unconfirmed feesSunny Isles Beach$570,427.50Includes unconfirmed feesSurfside$434,327.50Includes unconfirmed feesSweetwater$565,502.50Includes unconfirmed feesVirginia Gardens$475,652.50Includes unconfirmed feesWest Miami$475,652.50Includes unconfirmed fees

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How impact fees work in Florida

Florida impact fees are one-time charges on new development, governed by Section 163.31801, Florida Statutes (the Florida Impact Fee Act). The statute requires fees to be based on the most recent and localized data, spent on the infrastructure category they were collected for, and adopted by ordinance.

Since 2021, the law also limits how fast fees can rise: increases up to 25% phase in over two years, increases of 25–50% phase in over four years, and increases above 50% are allowed only with a demonstrated extraordinary-circumstances study and at least a two-thirds vote of the governing body.

Counties and cities can both levy impact fees. Inside an incorporated city, a project typically pays the county's countywide fees plus any municipal fees the city has adopted, which is why totals differ between a city and the unincorporated county around it.

Frequently asked questions

What are the total impact fees for a single-family home in Key Biscayne, Florida?

A new single-family home in Key Biscayne pays at least $13,190.90 per unit in combined impact fees (rates sourced July 14, 2026). 3 additional fees have no published standard amounts and are not included, so the full cost may be higher; verify before budgeting.

How much are commercial impact fees in Key Biscayne?

Commercial development in Key Biscayne pays $11.54 per square foot in impact fees, at least $576,850.00 for a 50,000 sq ft building. 2 additional fees have no published standard amounts and are not included, so the full cost may be higher; verify before budgeting.

Does Key Biscayne charge its own impact fees?

Yes. Key Biscayne levies its own municipal impact or utility fees, and county-levied fees also apply inside city limits. The schedule on this page shows every fee that applies to development in Key Biscayne, with the combined total.

Can Florida impact fees increase at any time?

No. Section 163.31801, Florida Statutes limits increases to 50% at most, phased in over two to four years, unless the local government makes extraordinary-circumstances findings and approves the increase by at least a two-thirds vote.

Fee amounts on this page are compiled from official published schedules and are provided for planning purposes only. Rates change, and project specifics (unit size, meter size, location within special districts) can alter what applies. Always verify current fees with the jurisdiction and utility before relying on them.

Compare unincorporated rates and every other city on the Miami-Dade County impact fees page.

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