01
Earthworks & excavation
Ground models, cut and fill, embankments, platforms and excavation surfaces.
View scope — Earthworks & excavationSurvey · model · deliver
We model
what you need
to build.
Practical 3D construction models from drawings and survey data.
For civil engineering, infrastructure, utilities and development projects — with clear scope, source information and QA.
UK based. Worldwide remote delivery.
Services
The right model.
For your next step.
Six service groups, with room for a custom brief.
Choose a category to see the full scope.
02
Roads & infrastructure
Road alignments, kerbs, channels, crossfalls, junctions and smooth tie-ins.
View scope — Roads & infrastructure
03
Pipework, ducting & drainage
Pipe routes, duct banks, drainage networks, chambers, crossings and trenches.
View scope — Pipework, ducting & drainage
04
Foundations & structures
Slabs, bases, plinths, retaining elements and structural setting-out geometry.
View scope — Foundations & structures
05
Survey, setting-out & QA
Survey processing, coordinate data and design-versus-as-built comparisons.
View scope — Survey, setting-out & QA
06
Machine control & CAD workflows
Field-ready model preparation, CAD automation and repeatable engineering workflows.
View scope — Machine control & CAD workflowsOutputs to suit your workflowDXF · XML / LandXML · TIN / DTM · 3D lines · CSV / TXT · PDF / JPG
Format details ↗Service imagery is illustrative. The interactive demonstration below uses fictional geometry.
Who we are · Why we do it
Engineering experience.
Digital capability.
NAT Survey AI is led by Karol Krysiak, a site engineer with 20 years of experience in civil engineering and construction.
We turn drawings and survey information into practical 3D models, CAD outputs and clearer project information — with AI-assisted workflows supporting, not replacing, engineering judgement.
Why we do it
To close the gap between what a drawing shows and what a project team needs on site. Our aim is to make complex information easier to understand, repetitive work easier to manage and model outputs easier to review.
Fictional project · Simulated progress
Interactive construction demonstration
Digital4D Demo
Explore the model.
Understand the sequence.
Discover a fictional construction project in 3D and plan view. Explore its layers, construction sequence and simulated completion percentages.
3D modelPlan viewConstruction sequenceSimulated progress
The model uses invented geometry, identifiers and progress values. It is a demonstration, not a client project or live progress report.
Explore Digital4D Demo Start 60-second tourTraining & digital tools
Make the workflow yours.
1:1 project clinics, company workshops, AI-assisted CAD workflows and digital resources. Discuss the support your team needs.
Before we start
A few clear answers.
Source information, scope and delivery requirements come first.
What should I send for a quotation?
A short brief, the available drawing or survey formats, your required output and deadline. Relevant inputs can include PDF, DWG/DXF, XML/LandXML, CSV/TXT, coordinates, levels and sections. A secure file-transfer method can then be agreed.
Can I request DXF or XML/LandXML files?
Yes. Choose the outputs in your enquiry and name the intended software or equipment. Geometry, units, coordinate system and the target workflow are reviewed before agreeing the export. These are project deliverables, not downloads generated automatically by this website.
What happens when design information is missing?
Missing levels, dimensions, references and design intent are identified for clarification. Model preparation and AI assistance do not replace approved source design, competent review or project QA.
How are projects quoted and paid?
Scope, deliverables, revisions, deadline and payment terms are agreed through a quotation or invoice. Online card, PayPal and Google Pay checkout is not active on this website; do not enter payment details here.
Does the enquiry form send files automatically?
No. It prepares an email on your device, which you review and send from your email application. You can also copy or save the enquiry text. The website has no file-upload service; agree a secure transfer method before sharing confidential drawings.
Start a project
Tell us what
you need to build.
Share a brief outline. The available information and required outputs are reviewed before scope and price are agreed.
[email protected]- 01Share the brief
Project type, available files and deadline.
- 02Agree scope & quotation
Outputs, source requirements and revisions.
- 03Model, check & deliver
Work to the agreed engineering scope.
FEATURED SERVICE
Machine Control & LandXML Model Preparation UK
Roads, earthworks, formation and construction model preparation with DXF, XML/LandXML and TIN deliverables.
EXPLORE THE SERVICE →NAT SURVEY AI ACADEMY
AI + CAD for Engineers & Designers
14-day practical digital engineering training with CAD/3D workflows, DXF/XML, engineering tools, quizzes and capstone assessment.
EXPLORE THE COURSE → STUDENT PORTAL / LOGIN