Tenders
NL AI 2026-0046 - SMH P3: Plint/MSA closes 11 Dec NL Relinen en deelliners WF7 2026-2030 (2031-2034) closes 13 Oct NL Verbouwing stadsdeelkantoor Scheveningen closes 28 Oct NL Bouwteam Sociaal Cultureel Centrum Pijnacker closes 23 Sept NL Gronduitgifte Franciscushof-Zuid Bosrijk 2026 closes 9 Oct NL Nieuwbouw gemaal Kramershoek closes 3 Nov NL HVAC en RWA beheer, onderhoud en vervanging closes 2 Nov NL 15118 | Realisatie Masterplan Rijkskantoor Westraven te Utrecht closes 18 Sept NL 51380| Revitalisatie centrale energievoorziening en binnenruimte PI Krimpen te Krimpen a/d IJssel closes 28 Oct NL Openbare verkoop Hertenweg 2-4, Havenweg 30a en aangrenzende gronden in Nieuwdorp closes 16 Nov NL Ontwikkeling en realisatie Koesteeg (Fase 1) closes 21 Oct NL AI 2026-0046 - SMH P3: Plint/MSA closes 11 Dec NL Relinen en deelliners WF7 2026-2030 (2031-2034) closes 13 Oct NL Verbouwing stadsdeelkantoor Scheveningen closes 28 Oct NL Bouwteam Sociaal Cultureel Centrum Pijnacker closes 23 Sept NL Gronduitgifte Franciscushof-Zuid Bosrijk 2026 closes 9 Oct NL Nieuwbouw gemaal Kramershoek closes 3 Nov NL HVAC en RWA beheer, onderhoud en vervanging closes 2 Nov NL 15118 | Realisatie Masterplan Rijkskantoor Westraven te Utrecht closes 18 Sept NL 51380| Revitalisatie centrale energievoorziening en binnenruimte PI Krimpen te Krimpen a/d IJssel closes 28 Oct NL Openbare verkoop Hertenweg 2-4, Havenweg 30a en aangrenzende gronden in Nieuwdorp closes 16 Nov NL Ontwikkeling en realisatie Koesteeg (Fase 1) closes 21 Oct

01 — Changes & addenda

The addendum is
where bids are lost.

The first read of a tender is rarely the problem. The danger is the clarification round: a revised piling spec buried on page 40, a submission date moved inside a footnote, a new certificate required three days before close. Miss one and the bid is non-conforming.

The pattern we built for

On a large NL tender it is normal to receive three to six addenda, the last of them in the final week. Each one can change what you must submit — and quietly reset your plan.

Steinlog reads every version so a change on page 40 can't hide.

Addendum at 16:40. New plan by 16:41.

Every change found,
mapped, and owned.

When an addendum or a clarification answer arrives, Steinlog diffs it against the version it replaces — text and tables — then checks each change against your draft sections and open tasks. What it finds becomes work, assigned to a name, with the source page attached.

Addendum №3 — what changed 14 changes · 16:41
§2.4 changed Piling spec: CFA → driven precast → j.verhoeven
§5.1 deadline Submission moved: 30 Mar → 27 Mar → 11 tasks re-cascaded
§7.2 added EPD required for structural steel → new task · m.bakker
§9.6 removed Traffic-management annex withdrawn → 2 tasks closed
every change cited to its source page · owners notified

Table-aware diff

Not “something changed”.
This clause, this cell.

A word-level diff isn't enough when the change is a number in a bill of quantities or a value in a requirements table. Steinlog compares structure, so a moved row or an edited unit rate surfaces as precisely as an edited sentence.

§2.4 Foundations — v2 → v3 1 clause · 1 table row

WAS

Foundations: CFA bored piles, Ø600, min. length 18 m.

NOW

Foundations: driven precast piles, 350×350, min. length 18 m.

TOUCHES

Draft §3.2 method statement · BOQ rows 210–214 · subcontractor quote (piling)

What the assistant does not do

It flags and drafts.
You decide.

The assistant is useful precisely because its limits are hard. It reads, compares and suggests — and every suggestion carries the pages it came from. It never crosses into the work only your team is accountable for.

  • Never prices your bid

    No AI-generated rates, no auto-filled BOQ values.

  • Never authors engineering content

    Method statements and calculations are your team’s, not a model’s.

  • Never submits

    Steinlog does not touch the procurement portal. You submit.

  • Cites every source

    Each flag links to the exact page and version it came from.

The disqualification check is deterministic code — see Planning.

Changes

Never read an addendum
on your own again.

Bring a live tender with an open clarification round. We'll show you what Steinlog catches.

pilot@steinlog.com

ennl