Long Island Specialty Service
Pool-to-Pond Conversion
Pool-to-Pond Conversion on Long Island
An unused or aging pool is one of the most expensive liabilities in a Long Island backyard. Thousands of dollars a year in chemicals, electricity, and maintenance, for something the family stopped using years ago. A pool-to-pond conversion turns that liability into a living asset: a natural ecosystem pond that requires a fraction of the upkeep, adds genuine curb appeal, and actually enhances your property value.
Scott Anderson Design specializes in pool-to-pond conversions throughout Nassau County. Scott's architectural background and two decades of water feature design experience make him uniquely qualified to reimagine your pool as something you'll actually love.
What Is a Pool-to-Pond Conversion?
A pool-to-pond conversion repurposes your existing pool structure into a naturalized ecosystem pond. Rather than demolishing the pool entirely, which is expensive and disruptive, we use the existing shell as the foundation for a new water feature, installing a proper ecosystem filtration system, natural stone, aquatic plants, and optionally koi or goldfish.
The result looks nothing like a pool. Natural Long Island boulders, waterfalls, marginal plants, and gravel transform the hard concrete lines into something that looks like it was carved by nature. Your neighbors won't recognize it.
The Conversion Process
Assessment & Design
Scott visits your property to evaluate the pool structure, drainage, and surrounding landscape. He designs a naturalized pond that works with your yard, not against it.
Demo & Prep
Pool equipment, plumbing, and any incompatible features are removed. The pool shell is cleaned, modified as needed, and prepped for the liner installation.
Liner & Filtration
A quality pond liner is installed over the pool surface. Aquascape biological filtration, a skimmer and biofalls, is plumbed to create a self-sustaining ecosystem.
Stone & Naturalization
Natural Long Island boulders, moss rock, and decorative gravel are placed to create the naturalistic look. Waterfalls and streams can be integrated at this stage.
Planting & Fish
Aquatic plants and marginals are installed around the pond edges. Once the ecosystem stabilizes, koi and goldfish can be introduced.
Cost Overview
Pool-to-pond conversions vary significantly based on pool size, condition, and the level of naturalization desired. Because the pool shell is reused, conversion is often more cost-effective than a demolition and new-build. Conversions typically range from $15,000 to $50,000 and above depending on scope.
A free site assessment is the only way to give you an accurate number. Pool conditions vary too widely for a reliable ballpark without seeing it in person.
Timeline
Most pool-to-pond conversions are completed in 1 to 3 weeks depending on pool size, weather, and the complexity of the stone and planting work. Permitting, if required, adds time before construction begins.
We schedule conversions in spring and fall when conditions are ideal for planting and ecosystem establishment.
Maintenance Comparison
The average inground pool costs $3,000 to $5,000 per year to maintain in Nassau County, covering chemicals, electricity, and opening and closing. A properly designed ecosystem pond typically costs $500 to $1,800 per year in professional maintenance, and much of that can be handled yourself between annual professional visits.
Inground pool
$3,000 to $5,000
Ecosystem pond
$500 to $1,800
Pool-to-Pond FAQ
Do I need a permit for a pool-to-pond conversion in Nassau County?
Is a converted pond as low-maintenance as a purpose-built pond?
Can I keep koi in a converted pool pond?
What if I want to completely remove the pool instead?
Stop Maintaining a Pool You Don't Use
Free pool-to-pond consultation. We'll assess your pool and show you what's possible.