Lexbau
DE
For contracting authorities

You decide what has to be proven.
Then you see the progress.

Lexbau turns your bill of quantities and technical specifications into a task list that you release to the contractor. From then on you see for every lot what has come in and what is still missing, and you send proof documents back with a comment. Gaps show up during construction, not at handover.

Book an intro call I'm a contractor
Features

From specification to handover

One shared status for both parties to the contract: contracting authority and contractor work on the same platform instead of sending Excel lists back and forth between two companies. Six steps, in the order they happen on the project.

01

Turn your specifications into tasks

Lexbau reads your contract documents, such as the bill of quantities, the construction description and the technical specifications, and turns them into actionable tasks, each linked to its source in the document. You check, adjust or reject.

Your documents

Bill of quantities · Lot 2
Construction description
Tech. specs civil works · district heating

Tasks

Condition survey before construction starts Construction description 2.4 · Specs CW 1.6 · Specs DH 3.2
suggested
Traffic safety inspection BoQ 01.01.0005–0007 · Construction description 3.1–3.2
suggested
Excavation permit before digging Specs CW 2.2
suggested
As-built survey and record drawing BoQ 02.01.0040
suggested
364 tasks from 3 documents
02

Share with the contractor

You release the checked task list to your contractor, lot by lot. From then on, they work with exactly this list.

Condition survey before construction starts Construction description 2.4 · Specs CW 1.6 · Specs DH 3.2
released
Traffic safety inspection BoQ 01.01.0005–0007 · Construction description 3.1–3.2
released
Excavation permit before digging Specs CW 2.2
released
As-built survey and record drawing BoQ 02.01.0040
released
Lot 2 · to the contractor 364 of 364 released
03

What is missing, across all lots

For every lot you see how many proof documents are in and which ones are missing. Before handover, not after.

Lot 2 · Sewer construction

13 missing · handover in 5 weeks

CCTV inspection H1–H6 Contractor · before handover
open
Plate load test km 0.4 Contractor
overdue
Record drawing (ISYBAU) Surveying
missing
+ 10 more
04

The same status as the contractor

When the contractor uploads a proof document, you see it right away. No chasing, no bulk email at the end of the month.

Contractor
CCTV inspectionopen
Pressure test report H4uploaded
Record drawingopen
Contracting authority
Pressure test report H4complete
Pressure test report H3complete
Site diary wk 38complete
05

Send back with a comment

If a signature is missing, you send the proof document back with a comment. The contractor sees exactly what is missing and resubmits.

  • Questions right on the proof document
  • No email ping-pong
PDF
PressureTest_H4.pdf from the contractor · today 10:15 AM
complete
CL
Site supervision

The countersignature is missing. Please resubmit.

MK
M. Keller · Contractor

Uploaded again, now countersigned.

06

Handover in one go

Whatever was missing was resubmitted during construction. Approved proof documents come to you as one package, organized by your specifications. At handover, it is complete.

Handover package Lot 1 · Road construction 54 / 54 complete
Test reports 18
Delivery notes and weighbridge tickets 21
Site diary 9
Record drawings (ISYBAU) 6
Download package
Security

Your data stays in Germany.

Servers in Germany

Processing and storage in German data centers.

No AI training on your data

Your documents are never used to train AI models.

Access only within the project

Everyone sees only the lots they have been given access to.

Delete means delete

Deleted projects are removed completely.

Getting started

How to get started

With your own documents from day one.

  1. 1

    Intro call

    We get to know your projects and show Lexbau on a real example.

  2. 2

    Test on your bill of quantities

    Upload your own bill of quantities as PDF, Excel or GAEB XML and see the tasks Lexbau creates from it.

  3. 3

    Pilot phase

    With your team on a running project.

  4. 4

    Rollout

    Extend it to more projects and teams.

Intro call

See Lexbau on your own bill of quantities.

We show you live which tasks Lexbau creates from your documents.

  • With your own documents
  • In the browser, nothing to install
Book an intro call
Contact

Or write to us

Questions, feedback or interested in working together? We will get back to you.

Or email us directly at info@lexbau.ai