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2026

Investor review, apartment building, Aargau region AG

Owner's construction advisory

«An investor wanted to know whether the purchase would deliver what the sales documentation promised.»
Apartment building in the Aargau region in the context of an independent project review and investor advisory

PHASE

Owner's construction advisory

SERVICE

Bauherrenberatung, Zweitmeinung

DURATION

3-week review

READING TIME

4 min read

The concern

What if the sales documentation does not deliver what it promises?

What we did

Independently checking the documents, plans and construction specification piece by piece.

What was the goal?

No more gut feeling, but a dossier you can stand behind.

What was the initial situation?

On paper the project looked good. The investor had studied the documents, felt the pressure to close, and could not let go of one question: is what it says actually true? On a project of this size a wrong assumption costs a great deal, and an independent review before signing is always cheaper than a surprise afterwards.

Without this review I would have signed. Today I know where the genuinely expensive points are.

Investor, Aargau region

What have we accomplished?

I went through the documents piece by piece: plans, construction specification, floor areas and sales documents. Everything was compared against what had been approved by the authorities and what can realistically be delivered. I transferred the figures cleanly into the business plan and set out any deviations transparently, so that the investor knew exactly where he stood and where he should renegotiate.

What was the result?

In the end there was no gut feeling left, but a dossier the investor could stand behind. He knew what he was buying, which points belonged in the negotiation, and what he could rely on.

Facing a similar purchase?

Have your project reviewed independently before you sign.

eigenheimwissen.ch, the companion knowledge platform by raumwert plus

No-obligation initial consultation, around 30 minutes, free of charge. A clear recommendation, no sales pitch.

Simon Käslin, SIA-certified architect and owner's construction advisor in Uster
This is how the collaboration went
01

Getting to know each other

Discuss your questions, the deadline and the critical points of the project.

02

Review of documents

Record the construction specification, plans and sales documentation in full.

03

Technical review

Assess and independently verify plans, areas and standards.

04

Risk assessment

Set out negotiating points, weaknesses and economic viability.

05

Completion

Hand over a written decision dossier and clarify open questions.

Plain text from the project
An independent project review costs less than any assumption that turns out to be wrong after the contract is signed.
What was the added value for the customer?

A fact-based decision

You buy on verified facts, not on hope.

Negotiating leverage

Concrete points for price and warranty negotiations.

Risks by building element

A clear picture of what could become expensive and where the reserves lie.

Business plan integration

Verified figures feed straight into your viability calculation.

Facing a similar purchase?

Have your project reviewed independently before you sign.

eigenheimwissen.ch, the companion knowledge platform by raumwert plus

No-obligation initial consultation, around 30 minutes, free of charge. A clear recommendation, no sales pitch.

Simon Käslin, SIA-certified architect and owner's construction advisor in Uster
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