00 / AI-assisted pre-bid due diligence

Know the ground
before you bid on it.

Plumb is the pre-bid due diligence platform for industrial & logistics sites.

It brings the scattered evidence on a site into one structured, cited view, so the analyst’s read is faster, more consistent and easier to defend. In hours, not weeks.

See how it works
01 / The problem

Diligence today is a scramble.

A bid lands. The clock starts. What follows is weeks of specialist time spent stitching together consultants and systems that were never meant to work together - while the seller rewards whoever can move first.

A.

Deals are taking longer

Document sets get bigger, reviews get slower, and the deal cools while you wait. Terms drift, competitors move, boards lose conviction. Time kills deals - and diligence is where the time goes.

B.

Consultants multiply, certainty doesn't

Planning, title, environmental, transport - each its own consultancy line with its own scope, timeline and invoice. Managing the panel is a job in itself, and hand-stitching their outputs is where the errors live.

C.

Sellers reward speed

Competitive processes favour pace and certainty. A seller with options does not wait for your third consultant's report - the bidder who can commit early, with evidence, sets the terms.

02 / What Plumb does

Three words drive the product.

Plumb reads the deal's data room - every planning pack, title deed, report and survey - and returns one structured, cited assessment across ten diligence disciplines. The judgement stays yours. The reading, structuring and citing is Plumb's.

Faster

Hours, not weeks. The full document set, read in a single pass while the bid window is still open - so you screen more sites, and walk away from the wrong ones before they cost you.

Consistent

Every site measured against the same risk factors on the same severity scale, every time - so two sites in a pipeline are genuinely comparable, and nothing rests on who happened to do the reading.

Defensible

Every claim carries its citation. A planning ref, a title number, a survey figure - one click from source. When the committee asks how you know, you show them.

03 / How it works

Drop a site. Get the ground truth.

Drop in the deal

The data room, as it arrived

Planning packs, title deeds, environmental reports, technical surveys - hundreds of documents in whatever shape the seller sent them. No preparation, no templates, no waiting on a scope of work.

Plumb reads the ground

Ten disciplines, one pass

Specialist readers work planning, title and legal, environmental, flood, ground conditions, transport, utilities, biodiversity net gain, commercial and measured survey in parallel - every finding extracted with the page it came from. What takes a consultant panel weeks happens in a morning, without the coordination overhead.

You get a pre-bid view

A register you can act on

Constraints, severities and open deal-breakers, levelled into one risk register with the evidence attached. Take it into committee, or walk away early - both are wins when you know the ground before you commit.

04 / Who it's for

Built for the people on the hook for the bid.

LAND

Acquisition teams

Screen more sites in the window you have, and walk away from the wrong ones sooner.

CAPITAL

Investment analysts

Take a defensible pre-bid view into committee, with the working attached.

BUILD

Developers

Surface planning and infrastructure constraints before they price into the deal.

FUND

Asset managers

Compare schemes across a pipeline on a consistent, repeatable basis.

05 / Questions

Common questions.

Q.01

What is Plumb?

Plumb is an AI-assisted pre-bid due diligence platform for UK industrial and logistics property. It reads the documents in a deal’s data room (the planning, title, environmental and technical material a buyer is working from) and turns them into one structured, cited view, so you can establish ground truth before you bid.

Q.02

What does Plumb assess on a site?

Plumb reviews a site across ten diligence disciplines in parallel: planning; title and legal; environmental, covering contamination and ecology; flood risk and drainage; geotechnical and ground conditions; transport and highways; utilities; biodiversity net gain (BNG); commercial and valuation; and measured survey and area schedule. Every finding is recorded with a citation back to the source document it came from.

Q.03

Does Plumb help with flood risk and ecological reports?

Yes. Plumb has dedicated specialists for flood risk and drainage and for environmental matters, including contamination and ecology, as well as biodiversity net gain. It reads the relevant reports in the data room, sets out what they mean for the bid alongside the other disciplines, and cites every point back to the source document, so the read is easy to defend in committee.

Q.04

How long does a pre-bid assessment take?

Hours, not weeks. Plumb runs the review across all disciplines in a single pass while the bid window is still open, instead of the days of specialist time it takes to stitch the documents together by hand.

Q.05

Who is Plumb for?

The people on the hook for the bid: land and acquisition teams, investment analysts, developers and asset managers acquiring industrial and logistics sites in the UK, along with the consultants they instruct to support a bid.

Q.06

How is Plumb different from a data room or instructing consultants?

A data room stores the documents; Plumb produces an assessment from them. Set against a full panel of consultants it is faster and much cheaper, it measures every site against the same risk factors so sites are genuinely comparable, and it attaches a citation to every claim (a planning reference, a title point, a survey figure) so nothing is asserted that cannot be shown.

Working through a specific report? Read our pre-bid diligence guides - walkthroughs of the flood risk assessment, contamination reports, ecological appraisal, biodiversity net gain metric, ground investigation report and measured building survey you will find in a data room.

06 / Get in touch

See Plumb on a site you already know.

Tell us about the sites you're assessing and we'll show you a pre-bid view. We're onboarding industrial & logistics acquirers across the UK now.

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