Mass grading & earthwork
Cut, fill, pad construction and pond shaping, placed to the model rather than to stakes. Soil stabilization and subgrade preparation on the same crew.
Maitland, Florida
CGC 1504904CUC 1226622FPC 26000021
Clearing tofinal lift
One contract for the whole site package. Earthwork, deep utilities, grading and paving across Central Florida — self-performed under three Florida licenses held in house.
35 ft+Crew deep-utility experience
$5M / $10MBonding, single / aggregate
3Florida licenses held in house
0OSHA recordables, 24 months
▪ One contract
One number.
One schedule.
One superintendent.
Our certified general contractor license lets us carry the entire site package on a single contract — from first clearing pass through final acceptance. You are not coordinating four subcontractors across one critical path.
Self-performed by 3D crews and 3D iron
- Land clearing and grubbing
- Mass earthwork and grading
- Fine grading to model
- Deep utilities — storm, sanitary, water, fire
- Lift stations, force mains, wet taps
- Subgrade preparation and soil stabilization
- Compaction, erosion control and SWPPP
Managed under our contract
- Asphalt placement and mill-and-overlay, through specialty partners
- Trench protection and dewatering, provided and engineered per site
▪ Capabilities
What our crews do
Deep utilities
Storm, sanitary, water and fire under engineered shoring with managed dewatering. Our field leadership and utility crews bring installation experience at 35 ft and greater from prior projects — beyond the 20 ft threshold where OSHA requires PE-engineered protective systems.
CUC 1226622 · FPC 26000021Fine grading to model
Our dozers run factory Intelligent Machine Control, so the blade holds design grade on the first pass — no stringline, no grade checker walking ahead of the machine. Model-based grading across our crews and equipment.
Clearing & grubbing
Site clearing, grubbing and haul-off, sequenced so the earthwork crew moves in behind without a demobilisation between scopes.
Paving & flatwork
Concrete flatwork, ribbon curb, ADA-compliant hand finishing and pavers. Asphalt placement and mill-and-overlay managed under our contract.
Slipform concrete paving
A GOMACO offset slipform paver brings stringless, GPS-guided curb and gutter, sidewalk and FDOT barrier in house. Booking Q4 2026 and 2027 capacity now.
▼ Beyond -20'-0"
The scope most site subs decline
Central Florida's water table does not forgive a shallow plan. Deep storm and sanitary here means managed dewatering, engineered shoring, and a crew that has stood in the hole before.
Our Field Operations Manager, David Navarro, and our utility crews bring installation experience at 35 feet and greater from prior projects — past the 20-foot line where a registered PE has to design the protective system. That depth is where most site subs sub the work out. We provide the protective and dewatering systems the soil actually calls for, competent persons are on site for every excavation, and inspections are logged before entry.
35 ft+Crew installation experience, prior projects
14–18 ftTypical structure depth under heavy trench shoring
PE-designedEngineered shoring beyond 20 ft
Per siteDewatering engineered — wellpoint, deep sock, sump
▪ Positioning & grade control
is three-dimensional
Our name is the method. Every job runs on a three-dimensional GPS model — from the takeoff that wins the bid to the drone flight that proves the dirt moved. Topcon on the ground, DJI in the air, machine control on the blade, and one model tying all of it together.
01 · Take off
AGTEK → HCSS
AGTEK turns the plans into a 3D model of every cubic yard of cut and fill and every foot of utility. Quantities import straight into HCSS HeavyBid — the number we bid is the number the model measured.
02 · Position
Topcon + DJI
A Topcon HiPer XR RTK base and rover set three-dimensional GPS control across the site. A DJI Matrice 4E flies the ground under Part 107, tied to that same control.
03 · Place
3D machine control
The AGTEK model drives our dozers’ Intelligent Machine Control — blade to design in three dimensions, first pass, no stakes and no grade checker ahead of the machine.
04 · Reveal
Heat maps vs. estimate
AGTEK Reveal renders each drone flight as a cut/fill heat map and measures it against the estimate — dirt moved, dirt remaining, progress tracked against the model instead of guessed.
Red is cut, blue is fill — the same map that runs our jobs is the reason for the colors on this page. Every quantity we publish is measured against surveyed ground control, and you can check our progress numbers against your pay application.
▪ Completed projects
Crowntree Tract 7 & 13
A full site development package on difficult soils: deep utility installation with extensive dewatering, storm and sanitary through lift station and force main integration, then finished with subgrade stabilization, paving, flatwork and curbing.
- 11 eaStorm manholes and inlets set
- 16 ft14–18 ft structure depth under heavy trench shoring
- 1 eaLift station with force main integration
▪ Leadership
Who is answering for the ground
3D was formed in 2025. The people running it were not.
Darrin Griffin
CEO / Founder
CGC 1504904US Navy veteran
Strategic Leadership. The vision behind the company, the discipline behind the growth.
Prior to founding 3D
A U.S. Navy veteran, licensed general contractor, and proven entrepreneur, Darrin has built a career defined by leadership, discipline, and execution. Prior to co-founding 3D Site Development, he founded and licensed HGR Construction in 2003, scaling the company beyond $400M before its acquisition. From leading international development efforts as Chief Development Officer at Timbers Resorts, where he helped execute more than $750M in development, to founding RGH Waste & Disposal in 2021, Darrin’s background reflects a consistent ability to build, lead, and grow successful businesses. His experience across construction, development, and entrepreneurship gives him the ability to recognize opportunity, build disciplined teams, and turn ambitious ideas into lasting success.
Mike Presley
VP / COO
CUC 1226622Part 107 UAS
Preconstruction and Operations. Where numbers become strategy, and strategy becomes execution.
Prior to founding 3D
A proud member of the Gator Nation and graduate of the M.E. Rinker, Sr. School of Construction Management at the University of Florida, Mike has built a career spanning nearly every facet of the construction industry. Prior to co-founding 3D Site Development, he oversaw more than $212M in commercial construction for a local General Contracting Company, served as Vice President for an established Orlando-area site development contractor with over $48M in annual revenue, and co-founded a successful concrete subcontracting company as its managing partner. His unique perspective and hands-on leadership approach allow him to identify opportunities others overlook, solve complex challenges, and deliver exceptional value from concept through completion.
David Navarro
VP / Field Operations Manager
FPC 26000021
Field Execution. The difference between lost time and substantial completion.
Prior to founding 3D
A seasoned field leader with deep experience in site development, David has built his career around production, crew coordination, and complex underground utility work. Prior to co-founding 3D Site Development, he held field leadership roles with well established Orlando-area site development contractors, overseeing crews on challenging civil projects that included deep utility installations exceeding 35 feet under PE-engineered shoring and dewatering conditions. His hands-on experience allows him to plan the work, lead the crews, solve problems in real time, and keep projects moving where it matters most, in the field.
▪ Bid & prequal
Everything you need to put us on a bid list
Bonded through Swiss Re Corporate Solutions America, rated A.M. Best A+ XV. Licenses, insurance certificates, safety record and references come in one packet.
▪ Careers
Operators, pipelayers, foremen
We run pipe crews and dirt crews out of Maitland. Late-model iron, machine control on the dozers, and field leadership that came up through the trade. If you run a hoe or lay pipe and you want to be told the truth about the schedule, talk to us.