First conversation

Tell us about your project.

Reply within 24 hours — personally, professionally, free of charge. Not a sales call. A first assessment.

I

Direct contact

For short questions or quick clarification — write or call. Dipl.-Ing. Robin Henn answers personally.

Call +49 175 44 39 215 Mon–Fri 8 – 17:30 · Sat 8 – 12:30 E-mail info@keystonedesign.de Detailed, documentation-ready
II Enquiry

A structured enquiry in two minutes.

Choose your project profile, send us the basics — and receive a professional first answer within 24 hours. No sales calls, no newsletter.

What kind of project?

Reply within 24 hours, personally from Dipl.-Ing. Robin Henn, civil engineer.

HOAI notice: this enquiry is not a fee agreement. You first receive a professional assessment. (HOAI = German Fee Regulation for Architects and Engineers.)

III

What happens after your enquiry?

  1. 01

    Within 24 hours

    Robin Henn personally replies by e-mail or phone with a first assessment.

  2. 02

    Free initial conversation

    20 – 30 minutes phone or video — we clarify essentials, timing and HOAI fee framework.

  3. 03

    On-site survey

    When the project is concrete: on-site appointment (90 minutes, €290 net, credited if a contract follows).

  4. 04

    Written offer

    Three-pillar calculation, HOAI tabular values, hourly-rate window, third-party costs — all open.

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