— NORTH ORANGE COUNTY | DESIGN & CONSTRUCTION

Designing Yards,
Building Memories.

Engineered with precision. Built for the people who'll
actually live in it.

At G3 Build, we design and build functional outdoor spaces that bring families together and make every home more enjoyable. Guided by engineering precision and attention to detail, we create spaces that inspire connection and lasting memories.

From detailed planning to final install, no element goes unnoticed. Whether it's a full backyard transformation or a smaller update like irrigation, lighting, or planting.


Designing yards, building memories

— OUR VISION

JON KOSTER | Owner, G3 BUILD | Professional Engineer

The best memories are made outside — in the mountains, at the beach, or in your own backyard.
— Jon Koster | Owner

— SERVICES WE OFFER

Every layer of the yard, handled by one team

From the first 3D rendering to the last light fixture, we plan and build outdoor spaces so each piece — grading, planting, hardscape, irrigation, lighting — works together, not around each other.

3D Design Renderings
$0.00

Realistic models of your home and yard before construction begins. Layout, materials, and textures from every angle, so you can refine your vision with confidence.

Irrigation Design & Installation
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Smart, water-conserving irrigation systems tailored to your property, installed with the most durable materials, and industry best practices so plants take root and thrive.

Drainage Solutions
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Grading, surface drainage, French drains, and subsurface systems that identify problem areas and move water off your property before it becomes one.

Hardscape & Softscape Installation
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Patios, walkways, retaining walls, and outdoor features blended with thoughtfully selected plants, turf, and groundcover. We build for durability and long-term beauty.

Low Voltage Landscape Lighting
$0.00

Fixtures placed to highlight architecture, planting, and pathways — energy-efficient, durable, and built to extend the evening outside.

Ready to Plan Yours?

Tell us about your yard and we’ll put together a plan.

— PROJECT PHOTOS

A look at what we create.


These are 3D design concepts from our renderings service — the same process we use to help you see your own yard before we break ground.

— HOW WE WORK

From first sketch to final walk-through.


One licensed team, one contract, start to finish. All so nothing gets lost between the design and what actually gets built.

STEP 1

Consult & Site Walk

We walk your property, talk through how your family actually uses it, and identify grading or drainage issues early.

STEP 2

3D Design

You see your yard before it's built. Materials, layout, and lighting, all rendered in detail so there are no surprises.

STEP 3

Build

Grading, drainage, hardscape, irrigation, and planting installed in sequence, by the same team that designed it.

STEP 4

Illuminate & Enjoy

Landscape lighting goes in last, tuned for evenings outside. Then it's yours to enjoy!

— WHY G3 BUILD

Engineering precision, built by people who care about the outcome.

Owner Jon Koster brings a background as a Professional Engineer to every project. His process includes detailed planning, top quality materials, and attention to elements that other crews skip. It's the difference between a yard that looks good on day one and one that lasts for years to come.

"I started this company with a simple idea: create outdoor spaces that families can truly enjoy. The same joy I look for with my own wife and three kids."

— Jon Koster | Owner

Let's design the yard your family will actually live in.

Ready to transform your outdoor space? Share a few details about your project, and we’ll be in touch soon.

— START YOUR PROJECT

Outdoor patio seating area and deck with potted plants and lounge chairs in North Orange County backyard