
Koi Ponds
A true ecosystem. Skimmer, biological filter, rock, gravel and plants doing the work so the water stays clear without chemicals.

We build ecosystem ponds, waterfalls and the landscapes around them. Living water, filtered by rock, gravel, plants and fish instead of chemicals. Drawn by hand in Bellmore, built by one crew, and still running twenty years later.
A pond that needs chemicals, a UV light and a weekly fight with algae was built wrong. A pond built right runs on biology.
Rock and gravel give bacteria a place to live. Plants pull the nutrients that would otherwise feed algae. Fish keep the system moving. The skimmer takes debris off the top before it sinks and rots. The waterfall adds the oxygen the whole thing runs on.
Get those five things in balance and the water stays clear on its own. That is the entire idea, and it is why our ponds are still clear twenty years after we built them.

Water leaves through the skimmer, gets pushed underground to the biological filter, and comes back down the waterfall. It never stops moving. Here is the whole system in cross-section.
Cross-section of a Scott Anderson Design ecosystem pond. Drawn to the same spec we build to.
Most pond companies stop at the water. Most landscapers will not touch it. We are the only contractor on Long Island that designs and builds the whole yard as one thing.

A true ecosystem. Skimmer, biological filter, rock, gravel and plants doing the work so the water stays clear without chemicals.

All the sound and movement of a waterfall with no standing water. The right answer for small yards and young families.

Full property design from an architect trained at NYIT. Plantings, grading, beds and structure drawn before anything gets dug.

Bluestone, limestone, fieldstone and brick. Patios, walls, walkways and outdoor kitchens built to sit right in the landscape.

Low voltage lighting for paths, plantings, architecture and water. The pond does not stop working when the sun goes down.

The stone, planting and water that turn a pool into a place. We work around the pool you have or the one you are putting in.
Scott earned a Bachelor of Architecture at NYIT before he ever built a pond. He still draws every plan by hand.
You get to see your yard on paper first. Where the water goes, where the stone sits, what gets planted and what gets taken out. Changes on paper are free. Changes in the ground are not.





A working koi pond ecosystem installed on a public high school campus. An outdoor classroom that has to survive a student body.

Won on competitive bid. A waterfall built into the existing campus reflecting pond without draining it or closing the walkway.

A pondless waterfall designed as the mountain backdrop for a working outdoor model railroad. Grade, scale and sightlines all had to serve the trains.
Scott comes out, looks at grade, drainage, sun, sightlines and the way you actually use the yard. Free, across Nassau County.
Not a rendering pulled off a template. A drawing, by hand, of your property. You see the plan before anyone touches a shovel.
A written scope with real numbers. If the budget and the plan do not match, we say so and show you what to cut.
The same team does the excavation, the stone, the plumbing, the planting and the lighting. Nobody gets subbed out and nobody points fingers.
You get a walkthrough of the system, the maintenance schedule and our number. Most of our work comes from people we built for years ago.

Most contractors make you sit through a sales call to hear a range. Here it is. Every yard is different, but this is the honest territory.
Pondless waterfall
Sound and movement, no standing water. Popular in tight yards.
Ecosystem pond
Skimmer, BioFalls, rock, gravel, plants and fish. The full system.
Large koi pond
Deeper water, larger volume, serious filtration for serious fish.
Full backyard
Water feature plus patio, walls, planting and lighting as one project.
Our 15 year old pond developed a leak. While contacting prospective pond restorers we came upon Scott Anderson Design. We are very pleased with their professionalism and quality of work.
Scott is the consummate pro. Puts his customers first and strives to meet their needs.
We are very happy with Scott Anderson's design and work. Our water element is lovely and makes our yard a peaceful retreat.
We are a local crew, not a franchise with a call centre. Most of the county is inside thirty minutes of the yard.
North Shore properties get different soil, different grade and different village permits than South Shore properties. We have built on both for twenty-three years.
Every project starts the same way: Scott walks the property, listens, and sketches. No pressure, no template. Consultations across Nassau County are free.