IMPACTFEES.ORG

Monroe County, Florida Impact Fees

Impact fees in Monroe County depend on where you build. This page details the rates for unincorporated Monroe County: at least $13,167.00 per single-family unit as of July 17, 2026. 5 additional fees have no published standard amounts and are not included, so the full cost may be higher; verify before budgeting. Inside city limits, each city applies its own schedule and fees may be completely different. Pick your city below.

Monroe County impact fees by project type

Where in Monroe 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 Monroe County$13,167.00this pageIncludes unconfirmed fees
Islamorada$5,279.00Includes unconfirmed feesKey Colony Beach$5,279.00Includes unconfirmed feesKey West$5,279.00Includes unconfirmed feesLayton$13,167.00Includes unconfirmed feesMarathon$5,279.00Includes unconfirmed fees

Unincorporated Monroe County: Single-Family Impact Fees

A new single-family home in unincorporated Monroe County pays at least $13,167.00 per unit in impact fees (rates sourced July 17, 2026). Every line item is levied at the municipal or utility level.

The largest line items are Sewer System Development Charge (FKAA) ($7,888.00) and Water System Development Charge (FKAA) ($5,279.00).

Library Impact Fee (Monroe County Fair Share), Transportation Impact Fee (Monroe County Fair Share), Community Park Impact Fee (Monroe County Fair Share), Police Facilities Impact Fee (Monroe County Fair Share), and Solid Waste Impact Fee (Monroe County Fair Share) are set by the county 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$5,279.00
  • Water System Development Charge (FKAA)
    Florida Keys Aqueduct Authority
    FKAA 'Summary of Water Rates, Fees and Charges' Sec. 48-204, adopted Oct 2025, eff 10/1/2025 (FY26): Residential single-family Water SDC = $5,279.00 at 5/8"x3/4" meter ($13,196 at 1"). Sole potable provider countywide. Separate tapping/meter-install fee $1,760 at 5/8"x3/4". Supersedes FY22 $3,750. FY26 schedule still current per FKAA Rules & Regulations rev. 10/1/25 (re-adopts each Oct 1). Meter-size tiers above 5/8" not yet exploded.
    $5,279.00
Sewer$7,888.00
  • Sewer System Development Charge (FKAA)
    Florida Keys Aqueduct Authority
    FKAA 'Summary of Wastewater Rates, Fees and Charges', adopted Oct 2025, eff 10/1/2025 (FY26): uniform countywide SDC, 'Residential - Multiple Unit, 3 units or less' (incl. single-family) = $7,888.00/unit. Former per-district rates removed. Separate connection charge $7,506 low-pressure / $9,149 gravity. FY26 still current per FKAA Rules & Regs rev. 10/1/25. KW Resort Utilities (Stock Island) sets its own charge - still open.
    $7,888.00
City$0.00
  • Municipal Impact Fees (Unincorporated – N/A)
    Monroe County
    CONFIRMED $0 - not a gap. Unincorporated Monroe County has no municipal impact fees by definition; county fair-share overlay fees apply instead (LDC Ch. 126, Sec. 126-8 to 126-12). Documents that a City-type fee was researched and correctly does not exist here.
    $0.00
County$0.00
  • Library Impact Fee (Monroe County Fair Share)
    Monroe County BOCC
    FEE EXISTS, AMOUNT UNPUBLISHED 8/4/2026: Monroe County fair-share library impact fee, LDC Sec. 126-10, is levied in the unincorporated Keys, but Ch. 126 (Ord. 006-2016) carries no dollar figures - amounts are set by BOCC resolution (Sec. 126-4(d)/126-5(b)) that is not codified or posted (county Permitting Fees page re-checked 8/4/2026: building/permit fees only, no impact-fee schedule). District excludes Key West and Layton (Sec. 126-4(e)(1)). Amount null; keep flagged. Monroe County Planning & Environmental Resources (305) 289-2500.
    Requires confirmation
  • Transportation Impact Fee (Monroe County Fair Share)
    Monroe County BOCC
    FEE EXISTS, AMOUNT UNPUBLISHED 8/4/2026: Monroe County fair-share transportation impact fee, LDC Sec. 126-8, is levied in the unincorporated Keys, but Ch. 126 (Ord. 006-2016) carries no dollar figures - amounts are set by BOCC resolution (Sec. 126-4(d)/126-5(b)) that is not codified or posted (county Permitting Fees page re-checked 8/4/2026: building/permit fees only, no impact-fee schedule). Sec. 126-2 proportionate fair-share is a separate concurrency mechanism, credited against this fee. District excludes Key West and Layton (Sec. 126-4(e)(1)). Amount null; keep flagged. Monroe County Planning & Environmental Resources (305) 289-2500.
    Requires confirmation
  • Community Park Impact Fee (Monroe County Fair Share)
    Monroe County BOCC
    FEE EXISTS, AMOUNT UNPUBLISHED 8/4/2026: Monroe County fair-share community park impact fee, LDC Sec. 126-9, is levied in the unincorporated Keys, but Ch. 126 (Ord. 006-2016) carries no dollar figures - amounts are set by BOCC resolution (Sec. 126-4(d)/126-5(b)) that is not codified or posted (county Permitting Fees page re-checked 8/4/2026: building/permit fees only, no impact-fee schedule). District excludes Key West and Layton (Sec. 126-4(e)(1)). Amount null; keep flagged. Monroe County Planning & Environmental Resources (305) 289-2500.
    Requires confirmation
  • Police Facilities Impact Fee (Monroe County Fair Share)
    Monroe County BOCC
    FEE EXISTS, AMOUNT UNPUBLISHED 8/4/2026: Monroe County fair-share police facilities impact fee, LDC Sec. 126-12, is levied in the unincorporated Keys, but Ch. 126 (Ord. 006-2016) carries no dollar figures - amounts are set by BOCC resolution (Sec. 126-4(d)/126-5(b)) that is not codified or posted (county Permitting Fees page re-checked 8/4/2026: building/permit fees only, no impact-fee schedule). No county Fire/EMS impact fee exists in Ch. 126. District excludes Key West and Layton (Sec. 126-4(e)(1)). Amount null; keep flagged. Monroe County Planning & Environmental Resources (305) 289-2500.
    Requires confirmation
  • Solid Waste Impact Fee (Monroe County Fair Share)
    Monroe County BOCC
    FEE EXISTS, AMOUNT UNPUBLISHED 8/4/2026: Monroe County fair-share solid waste impact fee, LDC Sec. 126-11, is levied in the unincorporated Keys, but Ch. 126 (Ord. 006-2016) carries no dollar figures - amounts are set by BOCC resolution (Sec. 126-4(d)/126-5(b)) that is not codified or posted (county Permitting Fees page re-checked 8/4/2026: building/permit fees only, no impact-fee schedule). District excludes Key West and Layton (Sec. 126-4(e)(1)). Amount null; keep flagged. Monroe County Planning & Environmental Resources (305) 289-2500.
    Requires confirmation
Total (unincorporated Monroe County): $13,167.00
Sources last checked July 17, 2026Official fee schedules:Florida Keys Aqueduct Authority Monroe County Monroe County BOCC
Fees flagged "Requires confirmation" have no confirmed published amount. Confirm them with the jurisdiction or utility before budgeting.

Where in Monroe 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 Monroe County$3,150.00this pageIncludes unconfirmed fees
Islamorada$1,060.00Includes unconfirmed feesKey Colony Beach$1,060.00Includes unconfirmed feesKey West$1,060.00Includes unconfirmed feesLayton$3,150.00Includes unconfirmed feesMarathon$1,060.00Includes unconfirmed fees

Unincorporated Monroe County: Multifamily Impact Fees

A new multifamily unit in unincorporated Monroe County pays at least $3,150.00 per unit in impact fees (rates sourced July 17, 2026). Every line item is levied at the municipal or utility level.

Water SDC (FKAA, MF 4+ units) — 10 FV × $106/FV and Sewer SDC (FKAA, MF 4+ units) — 10 FV × $209/FV are shown at the last published amount but have not been confirmed with the jurisdiction; they are included in the totals here. Verify before budgeting.

Library Impact Fee (Monroe County Fair Share, MF), Police Facilities Impact Fee (Monroe County Fair Share, MF), Solid Waste Impact Fee (Monroe County Fair Share, MF), Transportation Impact Fee (Monroe County Fair Share, MF), and Community Park Impact Fee (Monroe County Fair Share, MF) are set by the county 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$1,060.00
Sewer$2,090.00
City$0.00
  • Municipal Impact Fees (Unincorporated – N/A, MF)
    Monroe County
    CONFIRMED $0 - not a gap. Unincorporated Monroe County has no municipal impact fees; county fair-share overlay fees apply instead. Documents that a City-type fee was researched and correctly does not exist here.
    $0.00
County$0.00
  • Library Impact Fee (Monroe County Fair Share, MF)
    Monroe County BOCC
    FEE EXISTS, AMOUNT UNPUBLISHED 8/4/2026: Monroe County fair-share library impact fee, LDC Sec. 126-10, is levied in the unincorporated Keys, but Ch. 126 (Ord. 006-2016) carries no dollar figures - amounts are set by BOCC resolution (Sec. 126-4(d)/126-5(b)) that is not codified or posted (county Permitting Fees page re-checked 8/4/2026: building/permit fees only, no impact-fee schedule). MF rate differs from SF - per-unit basis unknown. District excludes Key West and Layton (Sec. 126-4(e)(1)). Amount null; keep flagged. Monroe County Planning & Environmental Resources (305) 289-2500.
    Requires confirmation
  • Police Facilities Impact Fee (Monroe County Fair Share, MF)
    Monroe County BOCC
    FEE EXISTS, AMOUNT UNPUBLISHED 8/4/2026: Monroe County fair-share police facilities impact fee, LDC Sec. 126-12, is levied in the unincorporated Keys, but Ch. 126 (Ord. 006-2016) carries no dollar figures - amounts are set by BOCC resolution (Sec. 126-4(d)/126-5(b)) that is not codified or posted (county Permitting Fees page re-checked 8/4/2026: building/permit fees only, no impact-fee schedule). No county Fire/EMS impact fee exists in Ch. 126. MF rate differs from SF - per-unit basis unknown. District excludes Key West and Layton (Sec. 126-4(e)(1)). Amount null; keep flagged. Monroe County Planning & Environmental Resources (305) 289-2500.
    Requires confirmation
  • Solid Waste Impact Fee (Monroe County Fair Share, MF)
    Monroe County BOCC
    FEE EXISTS, AMOUNT UNPUBLISHED 8/4/2026: Monroe County fair-share solid waste impact fee, LDC Sec. 126-11, is levied in the unincorporated Keys, but Ch. 126 (Ord. 006-2016) carries no dollar figures - amounts are set by BOCC resolution (Sec. 126-4(d)/126-5(b)) that is not codified or posted (county Permitting Fees page re-checked 8/4/2026: building/permit fees only, no impact-fee schedule). MF rate differs from SF - per-unit basis unknown. District excludes Key West and Layton (Sec. 126-4(e)(1)). Amount null; keep flagged. Monroe County Planning & Environmental Resources (305) 289-2500.
    Requires confirmation
  • Transportation Impact Fee (Monroe County Fair Share, MF)
    Monroe County BOCC
    FEE EXISTS, AMOUNT UNPUBLISHED 8/4/2026: Monroe County fair-share transportation impact fee, LDC Sec. 126-8, is levied in the unincorporated Keys, but Ch. 126 (Ord. 006-2016) carries no dollar figures - amounts are set by BOCC resolution (Sec. 126-4(d)/126-5(b)) that is not codified or posted (county Permitting Fees page re-checked 8/4/2026: building/permit fees only, no impact-fee schedule). Sec. 126-2 proportionate fair-share is a separate concurrency mechanism, credited against this fee. MF rate differs from SF - per-unit basis unknown. District excludes Key West and Layton (Sec. 126-4(e)(1)). Amount null; keep flagged. Monroe County Planning & Environmental Resources (305) 289-2500.
    Requires confirmation
  • Community Park Impact Fee (Monroe County Fair Share, MF)
    Monroe County BOCC
    FEE EXISTS, AMOUNT UNPUBLISHED 8/4/2026: Monroe County fair-share community park impact fee, LDC Sec. 126-9, is levied in the unincorporated Keys, but Ch. 126 (Ord. 006-2016) carries no dollar figures - amounts are set by BOCC resolution (Sec. 126-4(d)/126-5(b)) that is not codified or posted (county Permitting Fees page re-checked 8/4/2026: building/permit fees only, no impact-fee schedule). MF rate differs from SF - per-unit basis unknown. District excludes Key West and Layton (Sec. 126-4(e)(1)). Amount null; keep flagged. Monroe County Planning & Environmental Resources (305) 289-2500.
    Requires confirmation
Total (unincorporated Monroe County): $3,150.00
Sources last checked July 17, 2026Official fee schedules:Florida Keys Aqueduct Authority Monroe County Monroe County BOCC
Amounts flagged "Requires confirmation" are the last published figures, included in the totals. Confirm them with the jurisdiction or utility before budgeting.

Where in Monroe 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 Monroe County$0.00this pageIncludes unconfirmed fees
Islamorada$0.00Includes unconfirmed feesKey Colony Beach$0.00Includes unconfirmed feesKey West$0.00Includes unconfirmed feesLayton$0.00Includes unconfirmed feesMarathon$0.00Includes unconfirmed fees

Unincorporated Monroe County: Commercial Impact Fees

Commercial development in unincorporated Monroe County pays no per-square-foot impact fees (rates sourced July 17, 2026).

Sewer System Development Charge (FKAA) and Water System Development Charge (FKAA) are set by the utility and not published online. Fair Share Impact Fees (Monroe County, Commercial) is set by the county and has 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$0.00
  • Water System Development Charge (FKAA)
    Florida Keys Aqueduct Authority
    FKAA §48-204 Commercial Water System Development Charge, eff 10/1/2025 (FY26 schedule adopted Oct 2025). PRIMARY basis: $106.00 per Fixture Value (total FV at premises incl. irrigation). Meter-based SDC only where FV cannot be determined: 5/8"=$5,279; 1"=$13,196; 1.5"=$26,390; 2"=$42,224; 3"=$79,170; 4"=$131,950; 6"=$263,899; 8"=$422,239. Separate one-time Tapping/Meter Installation Fee (1"=$2,346). FKAA is the sole countywide potable water provider (all Florida Keys). Read via Google-viewer render of image PDF DocumentCenter/View/1771.
    Contact jurisdiction/utility to verify
Sewer$0.00
  • Sewer System Development Charge (FKAA)
    Florida Keys Aqueduct Authority
    FKAA Wastewater System Development Charge, eff 10/1/2025 (FY26, adopted Oct 2025). Commercial = $209.00 per Fixture Value. (Residential-Multiple Unit 3-units-or-less = $7,888.00/unit.) Separate one-time Wastewater Connection Charge: $7,506 low-pressure / $9,149 gravity. Unincorporated wastewater served by FKAA (Cudjoe Regional, Big Coppitt, Conch/Duck Key, Bay Point, Key Haven). KW Resort Utilities serves Stock Island separately (private, unpublished, 305-295-3301). Read via Google-viewer render DocumentCenter/View/1772.
    Contact jurisdiction/utility to verify
City$0.00
  • Municipal Impact Fees (Unincorporated Monroe – N/A, Commercial)
    N/A (unincorporated)
    No incorporated municipality in the unincorporated county — no municipal/city impact fees apply (confirmed N/A). County Fair Share impact fees (LDC Ch. 126) apply here — see County records.
    $0.00
County$0.00
  • Fair Share Impact Fees (Monroe County, Commercial)
    Monroe County BOCC
    Monroe County Fair Share Impact Fees, LDC Ch. 126 — Transportation §126-8, Community Park §126-9, Library §126-10, Solid Waste §126-11, Police Facilities §126-12. Ch. 126 contains NO dollar figures — amounts set by BOCC resolution and no impact-fee schedule is published on monroecounty-fl.gov (re-proved 2026). Applies in unincorporated area only; municipalities levy their own. Transportation/Solid Waste/Police most likely to reach nonres; Community Park & Library likely residential-oriented. $0 placeholder pending the current BOCC resolution — Monroe County Planning & Environmental Resources 305-289-2500 / permittinghelp@monroecounty-fl.gov.
    Requires confirmation
Total (unincorporated Monroe County): $0.00
Sources last checked July 17, 2026Official fee schedules:Florida Keys Aqueduct Authority Monroe County BOCC
Fees flagged "Requires confirmation" have no confirmed published amount. Confirm them with the jurisdiction or utility before budgeting.

Where in Monroe 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 Monroe County$0.00this pageIncludes unconfirmed fees
Islamorada$0.00Includes unconfirmed feesKey Colony Beach$0.00Includes unconfirmed feesKey West$0.00Includes unconfirmed feesLayton$0.00Includes unconfirmed feesMarathon$0.00Includes unconfirmed fees

Unincorporated Monroe County: Industrial Impact Fees

Industrial development in unincorporated Monroe County pays no per-square-foot impact fees (rates sourced July 17, 2026).

Sewer System Development Charge (FKAA) and Water System Development Charge (FKAA) are set by the utility and not published online. Fair Share Impact Fees (Monroe County, Industrial) is set by the county and has 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$0.00
  • Water System Development Charge (FKAA)
    Florida Keys Aqueduct Authority
    FKAA §48-204 Commercial Water System Development Charge, eff 10/1/2025 (FY26 schedule adopted Oct 2025). PRIMARY basis: $106.00 per Fixture Value (total FV at premises incl. irrigation). Meter-based SDC only where FV cannot be determined: 5/8"=$5,279; 1"=$13,196; 1.5"=$26,390; 2"=$42,224; 3"=$79,170; 4"=$131,950; 6"=$263,899; 8"=$422,239. Separate one-time Tapping/Meter Installation Fee (1"=$2,346). FKAA is the sole countywide potable water provider (all Florida Keys). Read via Google-viewer render of image PDF DocumentCenter/View/1771.
    Contact jurisdiction/utility to verify
Sewer$0.00
  • Sewer System Development Charge (FKAA)
    Florida Keys Aqueduct Authority
    FKAA Wastewater System Development Charge, eff 10/1/2025 (FY26, adopted Oct 2025). Commercial = $209.00 per Fixture Value. (Residential-Multiple Unit 3-units-or-less = $7,888.00/unit.) Separate one-time Wastewater Connection Charge: $7,506 low-pressure / $9,149 gravity. Unincorporated wastewater served by FKAA (Cudjoe Regional, Big Coppitt, Conch/Duck Key, Bay Point, Key Haven). KW Resort Utilities serves Stock Island separately (private, unpublished, 305-295-3301). Read via Google-viewer render DocumentCenter/View/1772.
    Contact jurisdiction/utility to verify
City$0.00
  • Municipal Impact Fees (Unincorporated Monroe – N/A, Industrial)
    N/A (unincorporated)
    No incorporated municipality in the unincorporated county — no municipal/city impact fees apply (confirmed N/A). County Fair Share impact fees (LDC Ch. 126) apply here — see County records.
    $0.00
County$0.00
  • Fair Share Impact Fees (Monroe County, Industrial)
    Monroe County BOCC
    Monroe County Fair Share Impact Fees, LDC Ch. 126 (Transportation §126-8, Community Park §126-9, Library §126-10, Solid Waste §126-11, Police Facilities §126-12). Ch. 126 has NO dollar figures — amounts set by BOCC resolution, no schedule published on monroecounty-fl.gov. Applies unincorporated only. $0 placeholder pending BOCC resolution — Monroe County Planning 305-289-2500.
    Requires confirmation
Total (unincorporated Monroe County): $0.00
Sources last checked July 17, 2026Official fee schedules:Florida Keys Aqueduct Authority Monroe County BOCC
Fees flagged "Requires confirmation" have no confirmed published amount. Confirm them with the jurisdiction or utility before budgeting.

Where in Monroe 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 Monroe County$0.00this pageIncludes unconfirmed fees
Islamorada$0.00Includes unconfirmed feesKey Colony Beach$0.00Includes unconfirmed feesKey West$0.00Includes unconfirmed feesLayton$0.00Includes unconfirmed feesMarathon$0.00Includes unconfirmed fees

Unincorporated Monroe County: Office Impact Fees

Office development in unincorporated Monroe County pays no per-square-foot impact fees (rates sourced July 17, 2026).

Sewer System Development Charge (FKAA) and Water System Development Charge (FKAA) are set by the utility and not published online. Fair Share Impact Fees (Monroe County, Office) is set by the county and has 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$0.00
  • Water System Development Charge (FKAA)
    Florida Keys Aqueduct Authority
    FKAA §48-204 Commercial Water System Development Charge, eff 10/1/2025 (FY26 schedule adopted Oct 2025). PRIMARY basis: $106.00 per Fixture Value (total FV at premises incl. irrigation). Meter-based SDC only where FV cannot be determined: 5/8"=$5,279; 1"=$13,196; 1.5"=$26,390; 2"=$42,224; 3"=$79,170; 4"=$131,950; 6"=$263,899; 8"=$422,239. Separate one-time Tapping/Meter Installation Fee (1"=$2,346). FKAA is the sole countywide potable water provider (all Florida Keys). Read via Google-viewer render of image PDF DocumentCenter/View/1771.
    Contact jurisdiction/utility to verify
Sewer$0.00
  • Sewer System Development Charge (FKAA)
    Florida Keys Aqueduct Authority
    FKAA Wastewater System Development Charge, eff 10/1/2025 (FY26, adopted Oct 2025). Commercial = $209.00 per Fixture Value. (Residential-Multiple Unit 3-units-or-less = $7,888.00/unit.) Separate one-time Wastewater Connection Charge: $7,506 low-pressure / $9,149 gravity. Unincorporated wastewater served by FKAA (Cudjoe Regional, Big Coppitt, Conch/Duck Key, Bay Point, Key Haven). KW Resort Utilities serves Stock Island separately (private, unpublished, 305-295-3301). Read via Google-viewer render DocumentCenter/View/1772.
    Contact jurisdiction/utility to verify
City$0.00
  • Municipal Impact Fees (Unincorporated Monroe – N/A, Office)
    N/A (unincorporated)
    No incorporated municipality in the unincorporated county — no municipal/city impact fees apply (confirmed N/A). County Fair Share impact fees (LDC Ch. 126) apply here — see County records.
    $0.00
County$0.00
  • Fair Share Impact Fees (Monroe County, Office)
    Monroe County BOCC
    Monroe County Fair Share Impact Fees, LDC Ch. 126 (Transportation §126-8, Community Park §126-9, Library §126-10, Solid Waste §126-11, Police Facilities §126-12). Ch. 126 has NO dollar figures — amounts set by BOCC resolution, no schedule published on monroecounty-fl.gov. Applies unincorporated only. $0 placeholder pending BOCC resolution — Monroe County Planning 305-289-2500.
    Requires confirmation
Total (unincorporated Monroe County): $0.00
Sources last checked July 17, 2026Official fee schedules:Florida Keys Aqueduct Authority Monroe County BOCC
Fees flagged "Requires confirmation" have no confirmed published amount. Confirm them with the jurisdiction or utility before budgeting.

Estimate your project in Monroe County

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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 single-family impact fees in Monroe County, Florida?

A new single-family home in unincorporated Monroe County pays at least $13,167.00 per unit in impact fees (rates sourced July 17, 2026). 5 additional fees have no published standard amounts and are not included, so the full cost may be higher; verify before budgeting. Inside city limits, fees are set by each city's own schedule and may be completely different. See the city pages for their rates.

How much are multifamily impact fees in Monroe County?

Multifamily development in unincorporated Monroe County pays at least $3,150.00 per unit in impact fees (rates sourced July 17, 2026). This figure includes amounts that have not been confirmed and excludes fees with no published standard amount, so the full cost may be higher; verify before budgeting. Rates inside city limits depend on the municipality. Pick your city on this page.

How much are commercial impact fees in Monroe County?

Unincorporated Monroe County does not currently levy impact fees on commercial development.

Do cities in Monroe County charge their own impact fees?

Yes. Every incorporated city applies its own fee schedule. 5 of 5 cities in Monroe County levy municipal impact or utility fees; each city page shows the full schedule that applies inside its limits.

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.

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