COMPLIANCE-GROUNDED AI FOR CONSTRUCTION

It cites the exact clause — or it says nothing.

A compliance-grounded AI engine for construction documentation. Every answer tied to a real code clause — or no answer at all.

89.7%
answer quality, independent LLM-as-judge
Zero
fabricated citations, grounding enforced by design
On-prem
runs inside your perimeter, drawings never leave it
THE PROBLEM

Errors in the documents are the industry's costliest habit.

$177B
lost every year (US alone) to rework, hunting for data and miscommunication
FMI · PlanGrid
14 h / wk
per engineer on non-optimal work — 5.5 h of it just searching for the right data
FMI
~5%
of project cost lost to rework on average, up to 20% on complex builds
CII
48%
of all rework traces back to poor data and miscommunication
FMI
IN THE MIDDLE EAST

Construction disputes here are the highest-value in the world — historically $85–90M+ on average, up to 3× other regions, and about 15 months to resolve. Errors and omissions in the documents are a leading cause.

Arcadis Global Construction Disputes

→ A grounded, code-aware check at the document stage is the cheapest place to stop all of it.

HOW LEX WORKS

Two ways to use it — one grounded engine.

MODE A — Ask
Natural-language query
Graph-RAG retrieval
Cite the clause — or abstain
FIVE CHECK TYPES
  • Completeness of the documentation set
  • Cross-section consistency
  • Reference & design-decision verification
  • Calculation checks
  • Normative (code) compliance
MODE B — Audit
Upload a document set
Automatic classification
Violation report + citations
WHAT YOU GET BACK
  • A prioritized list of findings
  • Links to the exact problem fragments
  • Code violations with clause references
  • Conflicting design decisions across sections
  • A per-section compliance report
WHY THE OUTPUT IS TRUSTWORTHY

It cites the exact clause — or it abstains.

Product screenshot — Dubai Building Code session
Ceiling-height query → the code doesn't specify, so LEX says so. Stairway width → grounded in section B.6.4.1.3.
REASONING TRACE

Watch it decompose the query, retrieve, validate and expand — no black box.

GROUNDED ANSWER

Cites the exact code section, or states the code doesn't specify a value — it never invents one.

EVIDENCE PANEL

Every source is ranked with a relevance score and full context, ready to verify by hand.

WHY YOU CAN TRUST THE ENGINE

A proven engine behind the check.

2,877 regulatory documents ingested (250K+ pages)

2 hrs to compile and check a full 13-section project graph

89.7% answer quality — beats naive RAG on adversarial queries

DBC Dubai Building Code integrated as a live regulatory graph

Live pilot on national building codes: a residential complex audit surfaced 3 missing mandatory sections and 7 critical code violations across 33 parameters, with 0 math errors — in 2 hours.

THE VECTOR

Three stages, one engine.

NOW

AI assistant on your base

Your team queries your own standards and past projects — grounded answers with sources.

NEXT

Automated compliance control

LEX audits project documentation against the codes automatically — every finding tied to a clause.

LATER

Compliant PD generation

LEX drafts project documentation that complies with the codes by construction.

THE PILOT

Start with a pilot.

1

Sign an NDA

Your documents stay inside a secure perimeter — nothing leaves it.

2

Share your document base

Standards, specifications and past projects you already have.

3

We build your assistant

An AI assistant grounded in your own documents. On-prem, no integration.

4

Your team uses it

Grounded answers from your own base, with automated compliance control to follow.

No integration, no obligation.

Request a pilot

Let's talk.

Pilots, partnerships and technical questions.