Service Areas / Leesburg
Docks, Seawalls & Shoreline Work in Leesburg
We build on Lake Harris, Lake Griffin, and the full Harris Chain — one of the largest connected freshwater systems in Central Florida.
Leesburg lakes we work
Leesburg sits at the heart of the Harris Chain of Lakes, a connected freshwater system of roughly 75,000 acres. Lake Harris at nearly 13,800 acres and Lake Griffin at 9,400-plus acres flank the city, and neither is a quiet backwater pond. These are big, wind-exposed lakes with real boat traffic and enough open-water fetch to put steady, measurable stress on anything you build along the bank. A dock or seawall spec'd for a small inland pond does not hold up the same way out here.
The two big lakes don't behave the same, and we don't treat them the same. Lake Griffin carries a long history of organic enrichment — soft, nutrient-heavy muck that fights you on pile driving and undercuts shoreline stability. Lake Harris runs cleaner and deeper but draws heavy weekend recreational traffic, so anything on its shoreline takes a persistent beating from wake. We size for whichever reality you're sitting on: pilings driven past the muck on Griffin, sheets run long enough to handle the scour wake carves at the toe on Harris.
Our license is SCC131154313 — state certified through the Florida DBPR, not county registered. Vince Strawbridge oversees every Leesburg project from the first walkthrough to the last.
What We Build in Leesburg
Three ways we work your shoreline
Docks in Leesburg
On Lake Harris and Lake Griffin we build for open water, not a sheltered cove. That means piling depth that gets past the organic muck into substrate that actually holds, and enough freeboard to ride out the lake-level swings the Harris Chain sees after a wet season. We build fixed or floating based on your water depth, your boat, and how the lake moves at your specific stretch of shoreline — the right answer in Venetian Gardens isn't the right answer on an exposed Griffin point.
How we build it →Seawalls in Leesburg
On Leesburg's lakes we push vinyl sheet piling — it doesn't corrode in freshwater and outlasts treated timber or aging concrete panels by decades. Griffin's soft, organically rich bottom is unforgiving, so we don't shortsheet: sheet length and tieback spacing get the attention they deserve, because skimping on a soft-bottom lake is exactly how a wall starts leaning a few years in. Where wake has carved the bank face on Harris, we run the panel long to address the scour at the toe rather than wishing it away.
How we build it →Shoreline & Erosion Control in Leesburg
Not every eroding stretch on the Harris Chain needs a hard wall. Where the bank slopes gradually and direct wake is light, a riprap revetment tied into native emergent vegetation often beats a seawall — the root mass locks the soil, the rock soaks up wave energy, and you spend less than a full panel run costs. SJRWMD also tends to look more favorably on a living-shoreline approach during environmental permitting, which can take some friction out of the approval timeline.
How we build it →Leesburg Permitting
Who permits your project
Properties inside Leesburg city limits pull building permits through City of Leesburg Building Services at 204 N. 5th Street (352-728-9735). Unincorporated Lake County properties go through the Lake County Building Division instead. On top of the building permit, any in-water or over-water structure on the Harris Chain also needs an Environmental Resource Permit from the St. Johns River Water Management District (SJRWMD), plus DEP authorization for work over state-owned submerged lands. A single-family dock may qualify for an ERP exemption, but you still self-certify through the DEP Business Portal — it is not a skip-the-paperwork step.
Single-family docks under 500 sq ft are often exempt from Florida DEP review, but the local building permit still applies — and seawall and shoreline work on the water frequently triggers DEP or SWFWMD review on top of it. We handle the entire path. You don't contact the agencies.
Permitting authority
City of Leesburg Building Services
We confirm jurisdiction by your exact address before filing anything — the city line runs through more neighborhoods than people expect.
Building on the water in Leesburg?
Free waterfront assessment · License #SCC131154313
Service Area
Waterfront areas we serve in Leesburg
Outside Leesburg? See all the areas we serve →
Notes from the Horizon
Stories from Leesburg's lakes
We write about the water we work on. A few from the lakes around Leesburg:
Lake Harris
Lake Harris, Tavares: The Day the College Record Fell
In January 2022, two brothers fishing a college tournament on Lake Harris brought a five-bass limit to the scales that weighed more than any single-day catch in the history of the Bassmaster College Series
Lake Dora
Lake Dora, Mount Dora: The Postcard Lake That Once Topped the Chain for Toxic Algae
In 2001, the prettiest lake on the Harris Chain quietly held a title nobody wanted — Florida's most polluted water body
Lake Beauclair
Lake Beauclair, Tavares: The Lake That Carries a Founder's Borrowed Name
The man who founded Tavares gave Lake Beauclair its name — and he gave Tavares its name, too, and both names trace back to the same restless, self-invented life
FAQ
Leesburg questions
Do I need both a city permit and a state permit to build a dock on Lake Harris?+
Yes. If your property is inside Leesburg city limits you pull a building permit from City of Leesburg Building Services. You'll also need either a DEP self-certification or an Environmental Resource Permit from SJRWMD for the in-water and over-water work — two separate processes, and we handle both.
Lake Griffin has a mucky bottom near my shoreline. Does that change what piling you use?+
It does. Organic muck has almost no bearing capacity, so we drive pilings past it into stable substrate below, and we set depth with the lake's seasonal level swings in mind. Get that math wrong on Griffin and the dock develops lean or movement within a few years.
Is vinyl seawall sheeting the right call for Lake Griffin and Lake Harris?+
Yes, on both. Vinyl doesn't rust or corrode in freshwater and shrugs off the organic acids in a mucky lake bottom. We push vinyl on essentially all of our freshwater seawall work on the Harris Chain.
My Lake Harris shoreline is eroding from boat wake. Seawall or riprap?+
Depends on your bank profile and how direct the wake exposure is. A steep, hard-eroding bank under heavy traffic usually wants a vinyl seawall. A gentler slope with moderate wake can often be stabilized with riprap and native vegetation for less money — and it's typically easier to permit through SJRWMD.
Who permits docks and seawalls for unincorporated Lake County properties near Leesburg?+
If you're outside Leesburg city limits — in unincorporated Lake County — your building permit comes from the Lake County Building Division, not the city. The SJRWMD and DEP requirements are the same either way; only the local building authority changes.
Does Horizon Marine work the full Harris Chain or just Lake Harris and Lake Griffin?+
The full chain — Lake Harris, Little Lake Harris, Lake Griffin, Lake Eustis, Lake Dora, Lake Beauclair, and Lake Carlton. If it's connected freshwater in Lake County, we can work on it.
Free Leesburg waterfront assessment
Planning a dock, a seawall, or fixing an eroding bank — or just figuring out what's possible on your shoreline? We'll come take a look at no charge.
(863) 934-6218State Certified Marine Contractor · License #SCC131154313 · Fully insured · Serving Leesburg & Central Florida