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Describe the work and share what you have: survey data, point files, CAD files, PDFs, sketches, or markups.
Civil design / CAD production
Drafting, Design & Development
Some see lines, but others see the future.
Design goes beyond what you see. It shapes what gets built. Grading, earthwork, and site development. Civil 3D and Revit production, delivered online.
For civil engineering, surveying, architecture, landscape architecture, planning, and design-build teams. Based in Miami, working nationwide.
01 / How It Works
From files to finished deliverables.
Scope
Lonestar reviews the information and confirms the deliverable, price, and turnaround time. Work begins only after you approve.
Collaborate
Communicate directly through email, Microsoft Teams, or another agreed channel. Exchange files, markups, questions, and revisions digitally.
Deliver
Receive organized CAD files, PDFs, calculations, surfaces, profiles, sections, quantities, or other agreed deliverables.
02 / Why Lonestar
The production desk you hand it to.
When your team's at capacity and the deadline isn't moving, Lonestar becomes the production desk you hand it to. Your team leads the project. Lonestar keeps it moving.
Minimal onboarding
Send the files and your standards. No long setup.
Direct communication
You work directly with Sergio, the designer doing the work.
No outsourcing
Every project is completed in-house, built to your CAD standards and templates.
Predictable turnaround
Delivery dates are set up front and kept.
Internal QC
Every deliverable is checked before it is sent.
03 / Services
Grading leads. Production follows.
Primary service
Grading & Earthwork
Buildable grading, surface, and earthwork production for site and infrastructure teams.
- Site and building pad grading plans
- Existing and proposed Civil 3D surfaces
- Cut/fill analysis and earthwork balancing
- Stripping allowances and site balancing
- Roadway and access-road grading
- Slope analysis
- Spot elevations and contours
- Curb and gutter (TC/FL) and ADA-compliant slopes
Deliverables: LandXML surfaces, point files, contour plans, volume reports, quantity tables, Civil 3D DWGs.
Service
Heavy Civil & Tunnels
Civil 3D production for tunnel, transit, and large infrastructure teams.
- Tunnel and infrastructure production
- Heavy civil grading
- Roadway geometry and corridor modeling
- Alignments, profiles, and sections for linear projects
- Plan/profile sheet production
- Quantity takeoffs
Deliverables: Civil 3D DWGs, plan and profile sheets, corridor models, quantity tables.
Service
Site Layout
Clear site, building, parking, and access layouts coordinated for production.
- Site and building layout
- Parking and access layout
- Roadway and access-road geometry
- Horizontal control
- Site development support
- Vehicle tracking — emergency / construction vehicles
Deliverables: Civil 3D DWGs, point files, site layout plans.
Service
Civil 3D Production
Production-ready Civil 3D drafting and model support from existing conditions through plan sets.
- Existing-ground and proposed surfaces
- Point-file-to-surface conversion
- Alignments
- Profiles and profile views
- Cross-sections and section views
- Feature lines and corridors
- Plan/profile production
- CAD cleanup and production
Deliverables: Civil 3D production files, profiles, plan and profile sheets.
Service
Drainage, Stormwater & Utility Production
Practical drainage, stormwater, and utility coordination for civil production teams.
- Drainage area maps and exhibits
- Overland flow and drainage pattern exhibits
- Runoff and drainage calculations prepared for engineer-of-record review
- Inlet and pipe layout
- Pipe profiles and hydraulic grade line tables
- Exfiltration trench layout
- Stormwater coordination
- Utility coordination and conflict identification
- Grading and drainage coordination
Deliverables: Drainage exhibits, calculation tables, pipe profiles, utility layouts, Civil 3D DWGs.
Calculations are production work prepared for review and sealing by the client's engineer of record.
Service
Revit & BIM
Civil site and building-model coordination for multidisciplinary project teams.
- Revit site modeling
- Civil 3D to Revit workflows
- Site coordination with architectural models
- Surface and utility coordination
- Model coordination support
- BIM production assistance
Deliverables: Revit (.RVT), DWG, coordination models, BIM-ready production files.
Service
3D Site Modeling
Shaded 3D models of graded sites with quantity and area schedules for review, coordination, and presentation.
- 3D graded site models from Civil 3D surfaces
- Building pads, slopes, and retaining areas
- Quantity and area schedules
- Cut/fill visualization
- Model views for owner and contractor review
Deliverables: 3D model views, quantity schedules, PDF exhibits, DWG.
04 / Pricing
Clear starting points.
Packages
Core Grading Package
Starting at
$4,200Drainage Production Package
Starting at
$3,0003D Site Model
Starting at
$1,800Overland Flow Exhibit
Starting at
$720Quick-Turn Tasks
Point File to Surface
Starting at
$360Plan Set QC Review
Starting at
$360Cut & Fill Analysis
Starting at
$420Sections / Section Views
Starting at
$480Profile / Profile View
Starting at
$480Add-ons & Capacity
Express Delivery
Starting at
+$600Priority Design Retainer
$1,800/week (up to 12 reserved production hours)$6,600/month (up to 48 reserved production hours)Published prices are starting points for clearly defined scopes. Final pricing is confirmed before work begins. Revit and BIM work is quoted per scope. Drainage calculations are provided as production for engineering firms and are not sealed.
Build Your Scope05 / Core Grading Package
Core Grading
Package
Starting at $4,200
| Site area | Price |
|---|---|
| Up to 0.5 acre | Starting at $4,200 |
| 0.5 to 2 acres | Starting at $6,600 |
| 2 to 5 acres | Starting at $10,200 |
| Over 5 acres | Custom quote |
Project qualification is confirmed after review.
Typical delivery: 5–10 business days after scope approval and complete files.
Typical scope includes
- Site grading plan
- Existing and proposed contours
- Spot elevations
- Building/pad grading
- Basic drainage intent
- Surface creation
- Cut-and-fill analysis
- Earthwork summary
- PDF plan set
- Associated CAD deliverables as agreed
What to send
- Boundary and topographic survey (DWG, LandXML, or point file)
- Site plan or building footprint
- Finished-floor or pad elevations, if set
- Your CAD standards and templates, if required
Add-ons: Drainage Production Package, 3D Site Model, Overland Flow Exhibit, Express Delivery.
Final pricing and turnaround depend on survey quality, terrain, drainage complexity, number of structures, revision and permitting requirements, and completeness of the information provided.
06 / Select Your Services
Select your services.
Select one task or build a custom group of Civil 3D and drafting services. A large engineering package is not required.
Grading & Earthwork
Heavy Civil & Tunnels
Site Layout
Civil 3D Production
Drainage & Utilities
Revit & BIM
3D Site Modeling
Add-ons
07 / Quick-Turn Services
Small scope.
Direct delivery.
Typical delivery: 1–3 business days after scope approval and complete files.
Turnaround commitments apply only after Lonestar reviews and accepts a clearly defined, production-ready scope.
Point File to Surface
Create one existing-ground surface from a clean, properly formatted survey point file of up to approximately 2,000 points, without extensive data reconstruction.
Send: survey point file (CSV/TXT).
$360
Plan Set QC Review
A design-production review for obvious drafting, coordination, grading, labeling, and plan-completeness issues. This does not constitute permitting-authority approval.
Send: plan set PDF and DWGs.
$360
Cut & Fill Analysis
Compare available or readily generated existing and proposed surfaces for one defined project area and provide a basic volume summary.
Send: existing and proposed surfaces (or the data to build them) and the project limits.
$420
Sections / Section Views
Up to five Civil 3D sections and section views using a provided or readily generated existing surface and standard presentation.
Send: surface or survey data and the section locations or alignment.
$480
Profile / Profile View
One alignment profile and Civil 3D profile view, up to approximately 500 linear feet, using one existing/proposed surface combination.
Send: alignment or centerline and surface data.
$480
08 / Priority Design Retainer
Priority Design Retainer
Weekly: $1,800/week, up to 12 reserved hours ($150/hr)Monthly: $6,600/month, up to 48 reserved hours ($137.50/hr)For teams with steady production overflow. Reserve a block of Civil 3D time each week or month and get priority scheduling with direct access. Retainer clients get a same-business-day response.
Covers:
- CAD production and redlines
- Grading revisions and surfaces
- Sections, profiles, and quantity updates
- Design-development support
- Direct access and file sharing
Each retainer covers an agreed number of reserved hours per period. Additional hours are billed separately. Unused hours expire at the end of each period. If you renew, up to 25% of the period's hours (3 weekly / 12 monthly) carry over to the next period only. Custom retainers are available for larger reserved blocks.
09 / Express Delivery
Express Delivery
+$600 or 25% of the project fee, whichever is greater.24- to 48-hour delivery for qualifying scopes.
Typically qualifies: All Quick-Turn Tasks, Overland Flow Exhibit, and Core Grading up to 0.5 acre.
The clock starts when:
- The scope is approved
- All required files and information are received
- Deposit or payment is complete
- Lonestar confirms eligibility
Requires a custom schedule: large developments, multiple buildings, complex stormwater or utilities, major roadways, subdivisions, incomplete surveys, extensive permitting research, multiple alternatives, significant revisions, and out-of-scope services.
Expedited delivery is not an unconditional guarantee.
10 / Credentials & Experience
Qualified to support public-sector teams.
Whether supporting public agencies or prime consultants, Lonestar's certifications help meet set-aside and supplier diversity goals.
- Autodesk Certified Professional (Civil 3D and AutoCAD)
- SBA Veteran-Owned Small Business (VOSB)
- Florida Veteran Business Enterprise (VBE)
- Florida Minority Business Enterprise (MBE)
- UEI: QZPMGJYP48Q3
- CAGE Code: 15SK8
Who you'll work with
Sergio Treviño, Civil Designer.
20+ years in civil and heavy-civil design, from site grading to tunnel and transit infrastructure. Autodesk Certified Professional in Civil 3D and AutoCAD. M.S. Civil Engineering candidate, Purdue. U.S. Air Force veteran.
LinkedIn →From South Florida to the Caribbean
Experience includes grading, earthwork, utility, and infrastructure work throughout the Caribbean, including luxury resort development in Grand Cayman and remote utility and water-treatment facilities where accuracy and coordination were critical.
Heavy civil & tunnels
Production support on major U.S. and Canadian tunnel and infrastructure programs, including alignments, profiles, grading, and plan production for prime design-build teams.
11 / FAQ
Frequently asked questions.
Who does Lonestar work with?
Civil engineering, surveying, architecture, landscape architecture, and planning firms, multidisciplinary firms, design-build teams, contractors, and developers.
Do you provide engineering seals?
No. Lonestar provides design and drafting production. Sealing stays with your licensed engineer of record.
Do you perform drainage and stormwater calculations?
Yes, as production work for engineering firms. Calculations are prepared for review and sealing by the engineer of record.
What is a 3D Site Model?
A shaded 3D model of the graded site with quantity and area schedules, built from the Civil 3D surfaces. Used for review, coordination, and presentation.
Can you use our CAD standards and templates?
Yes. Send your standards, templates, and a sample sheet, and the work is built to them.
What software do you use?
Autodesk Civil 3D, AutoCAD, and Revit. Deliverables include DWG, LandXML, point files, RVT, and PDF.
Can you handle rush projects?
Yes. Express Delivery is a 24- to 48-hour window for qualifying scopes: Quick-Turn Tasks, Overland Flow Exhibit, and Core Grading up to 0.5 acre. +$600 or 25% of the project fee, whichever is greater, confirmed after scope review.
How many revisions are included?
Two rounds of revisions within the original scope are included. Additional rounds or out-of-scope changes are billed hourly, quoted before work begins.
How does payment work?
Payment is due in full at scope approval, before work begins. Projects over $5,000 can be split into two equal payments: 50% at approval and 50% two weeks later or at delivery, whichever comes first. Final editable files are released once payment is complete. Subconsultant work on prime contracts follows the subcontract's payment terms.
What if I need to cancel?
Cancel before work begins for a full refund. After work begins, payments are refunded minus work completed to date, and any remaining installment is no longer due. Express Delivery fees are non-refundable once work starts.
Can Lonestar team on public bids?
Yes. Lonestar is an SBA Veteran-Owned Small Business, Florida VBE, and Florida MBE. Send the solicitation number, due date, and scope area.
Do you sign NDAs?
Yes. Lonestar signs reasonable NDAs on request and keeps client files and project information confidential.
What do you need to get started?
A description of the work plus any survey data, point files, CAD files, PDFs, or markups you have. Anything missing is identified during scoping.
Where are you located?
Miami, Florida, working with clients nationwide.
12 / Before You Purchase
Review the terms before purchasing.
Quote requests and services are subject to Lonestar's Terms of Service.
Client agreement
The complete Terms of Service explain project scope, deposits, revisions, deliverables, ownership, client responsibilities, and other conditions that apply to your purchase.
Read Terms of Service13 / Start a Project
Start a project.
Send your project scope, available files, and desired schedule. Lonestar reviews the requirements and confirms deliverables, pricing, and turnaround.
Or contact directly:sergio@lonestar.design(786) 763-1445