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Lake Mary, Florida Impact Fees

Lake Mary applies its own fee schedule: municipal fees plus the Seminole County-levied fees that apply inside city limits. Combined, a new single-family home pays $17,430.00 per unit (rates sourced ). The full breakdown is below.

Lake Mary Impact Fees by Project Type

Lake Mary: Single-Family Impact Fees

A new single-family home in Lake Mary pays $17,430.00 per unit in impact fees (rates sourced October 9, 2026). Of that, Seminole County-levied fees account for $15,719.00 and municipal or utility fees for $1,711.00.

The largest line items are Educational (School) Impact Fee (Seminole County Public Schools) ($9,000.00), Sewer Impact Fee (City of Lake Mary) — city 300 GPD × $1.45/GPD + Seminole County $3,175/DU ($3,610.00) and Road (Mobility) Impact Fee (Seminole County) ($2,714.00).

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

View the Full Lake Mary Impact Fee Schedule
Water$1,010.00
  • Water System Impact Fee (City of Lake Mary)
    1 ERU (350 GPD)
    City of Lake Mary
    City of Lake Mary water system impact fee: $1,010 per ERU (equivalent residential unit). One ERU equals 350 gallons per day, and a single-family home counts as 1.0 ERU. Multifamily units are charged a fraction of an ERU based on their assigned daily flow.
    $1,010.00
Sewer$3,610.00
City$701.00
  • Recreation Impact Fee (City of Lake Mary)
    City of Lake Mary
    City of Lake Mary recreation impact fee: $335 per residential dwelling unit, charged as a flat per-unit rate. One of four Lake Mary city impact fees (police, fire, recreation, public works) totaling $701 per dwelling unit.
    $335.00
  • Fire Impact Fee (City of Lake Mary)
    City of Lake Mary
    City of Lake Mary fire impact fee: $175 per residential dwelling unit, charged as a flat per-unit rate. One of four Lake Mary city impact fees totaling $701 per dwelling unit. Lake Mary levies its own fire fee; the separate Seminole County fire & rescue impact fee applies only in the unincorporated county, not here.
    $175.00
  • Police Impact Fee (City of Lake Mary)
    City of Lake Mary
    City of Lake Mary police impact fee: $165 per residential dwelling unit, charged as a flat per-unit rate. One of four Lake Mary city impact fees (police, fire, recreation, public works) that together total $701 per dwelling unit.
    $165.00
  • Public Works Impact Fee (City of Lake Mary)
    City of Lake Mary
    City of Lake Mary public works impact fee: $26 per residential dwelling unit, charged as a flat per-unit rate. One of four Lake Mary city impact fees (police, fire, recreation, public works) totaling $701 per dwelling unit.
    $26.00
County$12,109.00
  • Educational (School) Impact Fee (Seminole County Public Schools)
    Seminole County Public Schools
    Seminole County Public Schools educational (school) impact fee: $9,000 per single-family detached home, charged countywide on all new homes including in Lake Mary. Townhome, condo, and duplex units pay $5,000 and mobile homes pay $4,700.
    $9,000.00
  • Road (Mobility) Impact Fee (Seminole County)
    Suburban district, 1,500-2,499 sf
    Seminole County
    Seminole County mobility fee, effective 6/29/2021, collected in Lake Mary. The city levies no mobility fee of its own. Charged per home by size and mobility district. Shown: the Suburban district (the higher of the two districts in the city) for a 1,500 to 2,499 sq ft home; the Core district along I-4, US 17-92 and SR 436 is lower (see the other tiers). Affordable housing pays a reduced rate.
    $2,714.00
  • Library Impact Fee (Seminole County)
    1,500-2,499 sf
    Seminole County
    Seminole County library impact fee, effective 6/29/2021, charged countywide (the unincorporated area and every city). $395 for a single-family home of 1,500 to 2,499 sq ft; $351 under 1,500 sq ft and $443 for 2,500 sq ft or more (see the other tiers).
    $395.00
Total (Lake Mary): $17,430.00
Sources last checked Official fee schedules:City of Lake Mary City of Lake Mary (with Seminole County Environmental Services) Seminole County Public Schools Seminole County

Where in Seminole 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 Seminole County$22,953.00Altamonte Springs$15,907.60Casselberry$20,774.33
Lake Mary$17,430.00this page
Longwood$20,836.00Includes unconfirmed feesOviedo$26,620.00Sanford$18,180.25Includes unconfirmed feesWinter Springs$19,372.50

Lake Mary: Multifamily Impact Fees

A new multifamily unit in Lake Mary pays $12,758.21 per unit in impact fees (rates sourced October 9, 2026). Of that, Seminole County-levied fees account for $11,191.50 and municipal or utility fees for $1,566.71.

The largest line items are Educational (School) Impact Fee (Seminole County Public Schools, MF) ($7,100.00), Sewer Impact Fee (City of Lake Mary, MF) — city 250 GPD × $1.45/GPD + Seminole County minimum $2,223/DU ($2,585.50) and Road (Mobility) Impact Fee (Seminole County, MF) ($1,237.00).

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

View the Full Lake Mary Impact Fee Schedule
Water$865.71
  • Water System Impact Fee (City of Lake Mary, MF) — 0.857 ERU (300 GPD)
    1-2 bedroom (300 GPD)
    City of Lake Mary
    City of Lake Mary water system impact fee (multifamily): $1,010 per ERU, where one ERU equals 350 gallons per day. Amount shown is for a 1–2 bedroom unit assigned 300 GPD (0.857 ERU = $865.71); a 3+ bedroom unit is assigned 350 GPD and pays the full ERU ($1,010).
    $865.71
Sewer$2,585.50
City$701.00
  • Recreation Impact Fee (City of Lake Mary, MF)
    City of Lake Mary
    City of Lake Mary recreation impact fee: $335 per dwelling unit, a flat per-unit rate that applies equally to multifamily and single-family units. One of four Lake Mary city impact fees totaling $701 per dwelling unit.
    $335.00
  • Fire Impact Fee (City of Lake Mary, MF)
    City of Lake Mary
    City of Lake Mary fire impact fee: $175 per dwelling unit, a flat per-unit rate that applies equally to multifamily and single-family units. One of four Lake Mary city impact fees totaling $701 per dwelling unit. Lake Mary levies its own fire fee; the separate Seminole County fire & rescue impact fee applies only in the unincorporated county.
    $175.00
  • Police Impact Fee (City of Lake Mary, MF)
    City of Lake Mary
    City of Lake Mary police impact fee: $165 per dwelling unit, a flat per-unit rate that applies equally to multifamily and single-family units. One of four Lake Mary city impact fees (police, fire, recreation, public works) totaling $701 per dwelling unit.
    $165.00
  • Public Works Impact Fee (City of Lake Mary, MF)
    City of Lake Mary
    City of Lake Mary public works impact fee: $26 per dwelling unit, a flat per-unit rate that applies equally to multifamily and single-family units. One of four Lake Mary city impact fees totaling $701 per dwelling unit.
    $26.00
County$8,606.00
  • Educational (School) Impact Fee (Seminole County Public Schools, MF)
    Apartment 851-1,000 sf
    Seminole County Public Schools
    Seminole County Public Schools educational impact fee, effective 6/29/2021 (rates unchanged since Ord. 2018-1), charged countywide. Apartments are tiered by unit size: $7,100 for 851 to 1,000 sq ft (shown), $4,900 under 850 sq ft, $8,700 for 1,001 sq ft or more; townhomes, condominiums and duplexes pay $5,000 (see the other tiers).
    $7,100.00
  • Road (Mobility) Impact Fee (Seminole County, MF)
    Suburban district, 3+ floors
    Seminole County
    Seminole County mobility fee, effective 6/29/2021, collected in Lake Mary. The city levies no mobility fee of its own. Charged per unit by building height and mobility district. Shown: the Suburban district for a building of 3 or more floors ($1,237); 1 to 2 floor buildings pay $1,665, and the Core district along I-4, US 17-92 and SR 436 pays $779 or $1,048 (see the other tiers). Affordable housing pays a reduced rate.
    $1,237.00
  • Library Impact Fee (Seminole County, MF)
    Seminole County
    Seminole County library impact fee, effective 6/29/2021, charged countywide including in Lake Mary. Multifamily rate is $269 per unit ($148 per unit for affordable housing).
    $269.00
Total (Lake Mary): $12,758.21
Sources last checked Official fee schedules:City of Lake Mary City of Lake Mary (with Seminole County Environmental Services) Seminole County Public Schools Seminole County

Where in Seminole 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 Seminole County$12,963.00Altamonte Springs$12,299.62Casselberry$12,197.74
Lake Mary$12,758.21this page
Longwood$14,513.00Includes unconfirmed feesOviedo$20,156.00Sanford$13,558.94Includes unconfirmed feesWinter Springs$14,847.50

Lake Mary: Commercial Impact Fees

Commercial development in Lake Mary pays $4.08 per square foot in impact fees, plus $6,747.25 in one-time water and sewer connection fees (rates sourced October 9, 2026).

For a 50,000 sq ft building, that comes to about $210,647.25. The calculator below adjusts to your exact square footage.

The largest line items are Wastewater Capacity Fee (Seminole County Environmental Services, via Lake Mary) — 1" meter ($5,302.25 one-time), Water System Impact Fee (City of Lake Mary) — per ERU (350 GPD) ($1,010.00 one-time) and Sewer Impact Fee (City of Lake Mary) — city portion, 300 GPD × $1.45/GPD ($435.00 one-time).

Water and sewer connection fees assume a 1-inch meter; larger services pay more. See the meter-size tiers in the source schedules.

View the Full Lake Mary Impact Fee Schedule
Water$1,010.00 one-time
Sewer$5,737.25 one-time
City$0.26/sq ft
County$3.82/sq ft
  • Road (Mobility) Impact Fee (Seminole County, Commercial)
    Suburb
    Seminole County mobility fee, Suburb district, effective 6/29/2021, collected in Lake Mary; per 1,000 sq ft, schedule row: Retail (large, 20,000 sq ft or more, shopping center). The highest of the 2 rate districts in the city (Suburb and Core); the district is set by parcel location (see the other tiers).
    $3.82/sq ft
  • Fire & Rescue Impact Fee (Seminole County, Commercial)
    The Seminole County fire & rescue impact fee applies only in unincorporated Seminole County; within this municipality it is not charged (the city levies its own fire impact fee).
    $0.00
Total (Lake Mary): $4.08/sq ft + $6,747.25 one-time (≈ $210,647.25 at 50,000 sq ft)
Sources last checked
Water/sewer connection fees assume a 1-inch meter; larger services pay more.

Where in Seminole 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 Seminole County$402,600.83Altamonte Springs$355,307.20Casselberry$317,250.50
Lake Mary$210,647.25this page
Longwood$223,914.25Includes unconfirmed feesOviedo$386,217.25Sanford$273,729.00Includes unconfirmed feesWinter Springs$423,650.00Includes unconfirmed fees

Lake Mary: Industrial Impact Fees

Industrial development in Lake Mary pays $1.28 per square foot in impact fees, plus $6,747.25 in one-time water and sewer connection fees (rates sourced October 9, 2026).

For a 50,000 sq ft building, that comes to about $70,897.25. The calculator below adjusts to your exact square footage.

The largest line items are Wastewater Capacity Fee (Seminole County Environmental Services, via Lake Mary) — 1" meter ($5,302.25 one-time), Water System Impact Fee (City of Lake Mary) — per ERU (350 GPD) ($1,010.00 one-time) and Sewer Impact Fee (City of Lake Mary) — city portion, 300 GPD × $1.45/GPD ($435.00 one-time).

Water and sewer connection fees assume a 1-inch meter; larger services pay more. See the meter-size tiers in the source schedules.

View the Full Lake Mary Impact Fee Schedule
Water$1,010.00 one-time
Sewer$5,737.25 one-time
City$0.26/sq ft
County$1.02/sq ft
  • Road (Mobility) Impact Fee (Seminole County, Industrial)
    Suburb
    Seminole County mobility fee, Suburb district, effective 6/29/2021, collected in Lake Mary; per 1,000 sq ft, schedule row: Industrial. The highest of the 2 rate districts in the city (Suburb and Core); the district is set by parcel location (see the other tiers).
    $1.02/sq ft
  • Fire & Rescue Impact Fee (Seminole County, Industrial)
    The Seminole County fire & rescue impact fee applies only in unincorporated Seminole County; within this municipality it is not charged (the city levies its own fire impact fee).
    $0.00
Total (Lake Mary): $1.28/sq ft + $6,747.25 one-time (≈ $70,897.25 at 50,000 sq ft)
Sources last checked
Water/sewer connection fees assume a 1-inch meter; larger services pay more.

Where in Seminole 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 Seminole County$119,100.83Altamonte Springs$51,322.20Casselberry$104,793.50
Lake Mary$70,897.25this page
Longwood$49,314.25Includes unconfirmed feesOviedo$117,717.25Sanford$71,405.00Includes unconfirmed feesWinter Springs$59,650.00Includes unconfirmed fees

Lake Mary: Office Impact Fees

Office development in Lake Mary pays $2.10 per square foot in impact fees, plus $6,747.25 in one-time water and sewer connection fees (rates sourced October 9, 2026).

For a 25,000 sq ft building, that comes to about $59,222.25. The calculator below adjusts to your exact square footage.

The largest line items are Wastewater Capacity Fee (Seminole County Environmental Services, via Lake Mary) — 1" meter ($5,302.25 one-time), Water System Impact Fee (City of Lake Mary) — per ERU (350 GPD) ($1,010.00 one-time) and Sewer Impact Fee (City of Lake Mary) — city portion, 300 GPD × $1.45/GPD ($435.00 one-time).

Water and sewer connection fees assume a 1-inch meter; larger services pay more. See the meter-size tiers in the source schedules.

View the Full Lake Mary Impact Fee Schedule
Water$1,010.00 one-time
Sewer$5,737.25 one-time
City$0.26/sq ft
County$1.84/sq ft
  • Road (Mobility) Impact Fee (Seminole County, Office)
    Suburb
    Seminole County mobility fee, Suburb district, effective 6/29/2021, collected in Lake Mary; per 1,000 sq ft, schedule row: Office. The highest of the 2 rate districts in the city (Suburb and Core); the district is set by parcel location (see the other tiers).
    $1.84/sq ft
  • Fire & Rescue Impact Fee (Seminole County, Office)
    The Seminole County fire & rescue impact fee applies only in unincorporated Seminole County; within this municipality it is not charged (the city levies its own fire impact fee).
    $0.00
Total (Lake Mary): $2.10/sq ft + $6,747.25 one-time (≈ $59,222.25 at 25,000 sq ft)
Sources last checked
Water/sewer connection fees assume a 1-inch meter; larger services pay more.

Where in Seminole 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 Seminole County$107,200.83Altamonte Springs$60,199.70Casselberry$95,982.25
Lake Mary$59,222.25this page
Longwood$60,514.25Includes unconfirmed feesOviedo$142,067.25Sanford$65,388.50Includes unconfirmed feesWinter Springs$90,575.00Includes unconfirmed fees

Lake Mary 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 a 2021 amendment (Ch. 2021-63, Laws of Florida), 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.

Brush up on impact fee basics before you budget your next project.

Summary current as of September 2026. This is an editorial summary, not legal advice; see the official statute text and our terms of use.

Lake Mary Impact Fee FAQs

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

A new single-family home in Lake Mary pays $17,430.00 per unit in combined impact fees (rates sourced October 9, 2026).

How much are commercial impact fees in Lake Mary?

Commercial development in Lake Mary pays $4.08 per square foot in impact fees, plus $6,747.25 in one-time water and sewer connection fees (assuming a 1-inch meter), about $210,647.25 for a 50,000 sq ft building.

Does Lake Mary charge its own impact fees?

Yes. Lake Mary 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 Lake Mary, 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 Seminole County impact fees page.

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