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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 $13,190.90 per unit (rates sourced ). 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 $13,190.90 per unit in impact fees (rates sourced July 24, 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).

View the full Key Biscayne impact fee schedule
Water$291.90
Sewer$1,176.00
City$0.00
  • Parks & Recreation Impact Fee (Village of Key Biscayne)
    Village of Key Biscayne
    The Village of Key Biscayne does not charge a municipal parks and recreation impact fee; no impact fees appear in its published code of ordinances or fee schedule.
    $0.00
  • Police Impact Fee (Village of Key Biscayne)
    Village of Key Biscayne
    The Village of Key Biscayne does not charge a municipal police impact fee; no impact fees appear in its published code of ordinances or fee schedule.
    $0.00
  • Fire Impact Fee (Village of Key Biscayne)
    Village of Key Biscayne
    Key Biscayne does not charge a fire impact fee on new construction. The village has its own fire-rescue department, so the countywide fire fee does not apply, and the village code does not impose a fire impact fee of its own.
    $0.00
County$11,723.00
Total (Key Biscayne): $13,190.90
Sources last checked Official fee schedules:Miami-Dade Water & Sewer Department (WASD) Village of Key Biscayne Miami-Dade County

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$19,309.76Aventura$13,819.74Bal Harbour$13,718.45Bay Harbor Islands$13,718.45Includes unconfirmed feesBiscayne Park$13,718.45Coral Gables$11,859.90Cutler Bay$16,318.45Doral$18,413.84El Portal$13,718.45Florida City$12,250.55Includes unconfirmed feesGolden Beach$13,426.55Includes unconfirmed feesHialeah$16,001.77Hialeah Gardens$12,250.55Includes unconfirmed feesHomestead$12,797.33Includes unconfirmed feesIndian Creek$13,718.45
Key Biscayne$13,190.90this page
Medley$13,718.45Miami$21,532.87Miami Beach$13,190.90Miami Gardens$17,400.10Includes unconfirmed feesMiami Lakes$19,309.76Miami Shores$13,718.45Miami Springs$13,718.45North Bay Village$14,288.45Includes unconfirmed feesNorth Miami$23,539.55North Miami Beach$17,072.03Includes unconfirmed feesOpa-locka$16,046.45Palmetto Bay$17,491.08Includes unconfirmed feesPinecrest$13,718.45South Miami$18,558.45Sunny Isles Beach$14,434.45Includes unconfirmed feesSurfside$13,718.45Sweetwater$15,980.45Virginia Gardens$13,718.45West Miami$19,137.45Includes unconfirmed fees

Key Biscayne: Multifamily Impact Fees

A new multifamily unit in Key Biscayne pays $6,938.65 per unit in impact fees (rates sourced July 24, 2026). Of that, Miami-Dade County-levied fees account for $5,995.00 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), Educational Facilities (School) Impact Fee (Miami-Dade County, MF) ($1,530.00) and Sewer Connection Charge (Miami-Dade WASD) (MF) ($756.00).

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

View the full Key Biscayne impact fee schedule
Water$187.65
Sewer$756.00
City$0.00
  • Police Impact Fee (Village of Key Biscayne, MF)
    Village of Key Biscayne
    The Village of Key Biscayne does not charge a municipal police impact fee; no impact fees appear in its published code of ordinances or fee schedule.
    $0.00
  • Fire Impact Fee (Village of Key Biscayne, MF)
    Village of Key Biscayne
    Key Biscayne does not charge a fire impact fee on new construction. The village has its own fire-rescue department, so the countywide fire fee does not apply, and the village code does not impose a fire impact fee of its own.
    $0.00
  • Parks & Recreation Impact Fee (Village of Key Biscayne, MF)
    Village of Key Biscayne
    The Village of Key Biscayne does not charge a municipal parks and recreation impact fee; no impact fees appear in its published code of ordinances or fee schedule.
    $0.00
County$5,995.00
Total (Key Biscayne): $6,938.65
Sources last checked Official fee schedules:Miami-Dade Water & Sewer Department (WASD) Village of Key Biscayne Miami-Dade County

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$11,032.66Aventura$7,567.49Bal Harbour$7,466.20Bay Harbor Islands$7,466.20Includes unconfirmed feesBiscayne Park$7,466.20Coral Gables$8,565.65Cutler Bay$8,766.20Doral$12,161.59El Portal$7,466.20Florida City$6,522.55Includes unconfirmed feesGolden Beach$7,278.55Includes unconfirmed feesHialeah$9,177.52Hialeah Gardens$6,522.55Includes unconfirmed feesHomestead$7,069.33Includes unconfirmed feesIndian Creek$7,466.20
Key Biscayne$6,938.65this page
Medley$7,466.20Miami$11,781.71Miami Beach$6,938.65Miami Gardens$9,807.32Includes unconfirmed feesMiami Lakes$11,032.66Miami Shores$7,466.20Miami Springs$7,466.20North Bay Village$7,895.20Includes unconfirmed feesNorth Miami$16,696.55Includes unconfirmed feesNorth Miami Beach$9,467.87Includes unconfirmed feesOpa-locka$8,630.20Palmetto Bay$10,065.49Includes unconfirmed feesPinecrest$7,466.20South Miami$9,886.20Sunny Isles Beach$7,981.20Includes unconfirmed feesSurfside$7,466.20Sweetwater$9,453.20Virginia Gardens$7,466.20West Miami$10,638.20Includes unconfirmed fees

Key Biscayne: Commercial Impact Fees

Commercial development in Key Biscayne pays $11.54 per square foot in impact fees (rates sourced July 24, 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 Key Biscayne impact fee schedule
Water$0.00
  • Water Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Water service is provided by Miami-Dade WASD. The one-time nonresidential connection charge is $1.39 per average daily gallon of estimated demand; there is no meter-size ladder — the project's gallonage is assigned by land use. Rate effective October 1, 2025.
    Contact jurisdiction/utility to verify
Sewer$0.00
  • Sewer Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Sewer service is provided by Miami-Dade WASD. The one-time nonresidential connection charge is $5.60 per average daily gallon of estimated demand ($2.80 with an approved graywater system); there is no meter-size ladder — the project's gallonage is assigned by land use. Rate effective October 1, 2025.
    Contact jurisdiction/utility to verify
City$0.00
County$11.54/sq ft
Total (Key Biscayne): $11.54/sq ft (≈ $576,850.00 at 50,000 sq ft)
Sources last checked Official 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 24, 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 Key Biscayne impact fee schedule
Water$0.00
  • Water Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Water service is provided by Miami-Dade WASD. The one-time nonresidential connection charge is $1.39 per average daily gallon of estimated demand; there is no meter-size ladder — the project's gallonage is assigned by land use. Rate effective October 1, 2025.
    Contact jurisdiction/utility to verify
Sewer$0.00
  • Sewer Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Sewer service is provided by Miami-Dade WASD. The one-time nonresidential connection charge is $5.60 per average daily gallon of estimated demand ($2.80 with an approved graywater system); there is no meter-size ladder — the project's gallonage is assigned by land use. Rate effective October 1, 2025.
    Contact jurisdiction/utility to verify
City$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 Official 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 24, 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 Key Biscayne impact fee schedule
Water$0.00
  • Water Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Water service is provided by Miami-Dade WASD. The one-time nonresidential connection charge is $1.39 per average daily gallon of estimated demand; there is no meter-size ladder — the project's gallonage is assigned by land use. Rate effective October 1, 2025.
    Contact jurisdiction/utility to verify
Sewer$0.00
  • Sewer Connection Charge (Miami-Dade WASD)
    Miami-Dade Water and Sewer Department
    Sewer service is provided by Miami-Dade WASD. The one-time nonresidential connection charge is $5.60 per average daily gallon of estimated demand ($2.80 with an approved graywater system); there is no meter-size ladder — the project's gallonage is assigned by land use. Rate effective October 1, 2025.
    Contact jurisdiction/utility to verify
City$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 Official 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

Key Biscayne impact fee calculator

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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.

New to impact fees? Our plain-English guide explains what they cover, who pays them, and why they exist.

Key Biscayne impact fee FAQs

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

A new single-family home in Key Biscayne pays $13,190.90 per unit in combined impact fees (rates sourced July 24, 2026).

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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