A naturalistic koi pond under a Japanese maple built by Scott Anderson Design in Nassau County
Nassau County, Long Island

A backyard that takes care of itself.

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.

2003
Building since
CAC
Certified Aquascape Contractor
B.Arch
NYIT trained
Certified Aquascape Contractor
B.Arch, New York Institute of Technology
Building on Long Island since 2003
Jericho High School · Adelphi University
More than a pond

We do not dig a hole and fill it with water.

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.

Ecosystem koi pond with waterfall and koi in Bellmore, Nassau County
Long IslandEcosystem pond, no chemical program
How it works

Six parts. One loop. No chemicals.

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.

01020304050601SkimmerPulls debris off the surface02Living waterPlants, fish, clear water03BioFalls filterBiological filtration04WaterfallAeration and sound05Rock and gravelWhere the bacteria live06Return linePump feeds the falls
  1. 01SkimmerPulls debris off the surface
  2. 02Living waterPlants, fish, clear water
  3. 03BioFalls filterBiological filtration
  4. 04WaterfallAeration and sound
  5. 05Rock and gravelWhere the bacteria live
  6. 06Return linePump feeds the falls

Cross-section of a Scott Anderson Design ecosystem pond. Drawn to the same spec we build to.

What we build

Ponds, stone, planting and light. One team.

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.

Koi pond construction with koi and waterfall in Bellmore, Nassau County

Koi Ponds

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

Pondless waterfall over natural stone on Long Island

Pondless Waterfalls

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

Front yard landscape design with layered plantings in Bellmore, NY

Landscape Design

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

Fieldstone stepping stone path and stone wall in Nassau County

Masonry and Hardscape

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

Low voltage outdoor landscape lighting on a home and plantings on Long Island

Outdoor Lighting

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

Poolscape with stone terrace and rock waterfall spilling into a pool in Nassau County

Poolscapes

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.

Before the shovel

Every project starts as a drawing.

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.

Hand drawn landscape plan by Scott Anderson for a Brookville property with pool, spa and pond
Hand drawn planting plan by Scott Anderson listing every shrub and tree around a house
Hand drafted site plan by Scott Anderson showing pool, bluestone patio, pathways and planting beds
Hand drawn front yard planting plan by Scott Anderson with stepping stone stairs and mixed perennials
Selected work

A high school, a university, and a train garden.

Koi pond ecosystem with boulder edge and waterfall in the courtyard of Jericho High School
Institutional

Jericho High School

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

Rock waterfall built into the campus reflecting pond at Adelphi University in Garden City
Institutional

Adelphi University

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

Pondless waterfall over stacked stone forming the backdrop of an outdoor model train garden on Long Island
Residential

The Shelton Train Garden

A pondless waterfall designed as the mountain backdrop for a working outdoor model railroad. Grade, scale and sightlines all had to serve the trains.

The process

Five steps. No surprises.

  1. We walk the property

    Scott comes out, looks at grade, drainage, sun, sightlines and the way you actually use the yard. Free, across Nassau County.

  2. He draws it

    Not a rendering pulled off a template. A drawing, by hand, of your property. You see the plan before anyone touches a shovel.

  3. We price it honestly

    A written scope with real numbers. If the budget and the plan do not match, we say so and show you what to cut.

  4. One crew builds it

    The same team does the excavation, the stone, the plumbing, the planting and the lighting. Nobody gets subbed out and nobody points fingers.

  5. We hand you the water

    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.

Scott Anderson Design crew in waders doing a spring pond cleanout in Halesite
Spring cleanoutOur own crew, not a subcontractor
What it costs

Real numbers, published.

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.

$6,000 – $12,000

Ecosystem pond

Skimmer, BioFalls, rock, gravel, plants and fish. The full system.

$12,000 – $28,000

Large koi pond

Deeper water, larger volume, serious filtration for serious fish.

$28,000 – $50,000+

Full backyard

Water feature plus patio, walls, planting and lighting as one project.

By design
4.7 stars, 143 Google reviews

What Long Island says.

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.
James DeLuca
Scott is the consummate pro. Puts his customers first and strives to meet their needs.
Thomas Drogan
We are very happy with Scott Anderson's design and work. Our water element is lovely and makes our yard a peaceful retreat.
Darlene Benz
Where we work

All of Nassau County and western Suffolk, from a shop in Bellmore.

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.

North Shore

  • Manhasset
  • Port Washington
  • Roslyn
  • Brookville
  • Muttontown
  • Old Westbury
  • Oyster Bay
  • East Norwich
  • Syosset
  • Jericho
  • Great Neck

South Shore

Central Nassau

  • Mineola
  • Franklin Square
  • Plainview
  • Hicksville
  • Westbury
  • East Meadow
  • Levittown
  • Bethpage
  • Farmingdale
  • Hempstead
  • Valley Stream
  • Malverne
  • Lynbrook
  • Freeport
  • Long Beach
  • Elmont
  • Floral Park
  • New Hyde Park

Western Suffolk

  • Amityville
  • Babylon
  • Lindenhurst
  • Copiague
  • Deer Park
  • West Babylon
  • North Babylon
  • Bay Shore
  • West Islip
  • Huntington
  • Huntington Station
  • Melville
  • Commack
  • Northport
Start the conversation

Tell us about the yard.
We will tell you what is possible in it.

Every project starts the same way: Scott walks the property, listens, and sketches. No pressure, no template. Consultations across Nassau County are free.