Civil Design Studio — Est. 2026

Precision civil design, from first contour to final permit.

TerraLine Civil delivers grading, stormwater, hydrology, and solar civil design for developers, EPCs, and A/E firms across the United States.

Start a project Explore services
250+ Projects delivered
98% On-time delivery
2–4 wk Typical design turnaround
< 24 h Inquiry response
01

What we design

SERVICES
S.01

Grading & Site Design

Optimized grading plans, earthwork balancing, and site layouts in Civil 3D — buildable, permit-ready, and cost-aware from day one.

Civil 3DEarthworkSite layout
S.02

Stormwater Management

Detention ponds, drainage networks, and erosion-control details that satisfy reviewers and survive construction.

DetentionDrainageE&SC
S.03

Hydrology & Hydraulics

Hydrologic modeling and HEC-RAS analysis that size your systems right — and defend the numbers when reviewers ask.

HEC-RASHydrology Studio
S.04

Solar Civil Design

Utility-scale PV civil packages — grading, drainage, access roads, and fencing — led by dedicated solar design specialists.

Solar PVUtility-scale
S.05

Permitting & Construction Documents

Complete permit sets and construction documents, drafted to move smoothly through jurisdictional review.

Permit setsCD sets
S.06

Value Optimization & Constructability

Plan review that catches risk early and trims cost without compromising safety, function, or approvals.

ReviewVERisk
02

Selected work

PROJECT RECORD

A cross-section of recent deliveries — site, drainage, and solar civil packages for developers, EPCs, and contractors across the United States.

Multifamily Development

Multifamily Site Package

Site planning and grading for a multifamily development — lot optimization, earthwork balance, and permit-ready sheets.

Site / Grading
Residential Development

Residential Grading & Drainage

Lot grading and stormwater drainage design for a residential development, with construction-ready details.

Residential
Commercial Development

Commercial Site Plan

Permit-ready commercial site plan with building placement, parking layout, and setback compliance.

Commercial
Utility-Scale Solar

Utility-Scale Solar Civil

PV civil design packages — array grading, drainage, and access roads — for utility-scale solar facilities.

Solar PV
03

How we deliver

PROCESS
  1. 01

    Discover

    We lock the scope, pull site data, and map jurisdictional constraints before a single line is drawn.

  2. 02

    Model

    Terrain, hydrology, and design alternatives built in Civil 3D and HEC-RAS — options you can compare.

  3. 03

    Design

    The winning scheme gets detailed and cost-optimized: fewer yards of dirt, fewer risks, cleaner sheets.

  4. 04

    Deliver

    Permit-ready drawings with responsive revisions — we stay with you through review comments.

04

The studio behind the line

TerraLine Civil is a civil design studio serving developers, EPCs, and A/E firms across the United States — a coordinated team of design professionals and CAD designers working to US project standards.

We pair deep software fluency — Civil 3D for terrain, HEC-RAS for water — with a designer's eye for sheets that reviewers actually enjoy reading. Every package ships permit-ready, cost-optimized, and on schedule.

  • +Registered civil design practice serving US developers & EPCs
  • +Solar civil design capabilities
  • +Consistent on-time, permit-ready delivery across engagements
  • +Civil 3D · AutoCAD · HEC-RAS · HEC-HMS · QGIS · InfoDrainage · HydroCAD
Autodesk Civil 3D// AutoCAD// HEC-RAS// HEC-HMS// QGIS// Autodesk InfoDrainage// HydroCAD// Hydrology Studio
05

Start a project

CONTACT

Have a site that needs grading, a pond that needs sizing, or a solar field that needs civil? Tell us about it — we reply within one business day.