Digital shadow / Kramer Building Services Engineering GmbH, 20 employees

Kramer Building Services Engineering GmbH, 20 employees

A TGA planning office for offices, schools and clinics that loses its engineers to calculations, drawing revisions, minutes and the hunt for old project data.

How it works

  1. Check the numbers. Each step shows the hours your company spends on it per week. Click a number to change it, or set it to 0 if the step does not exist for you.
  2. Insert building blocks. Click a coloured block in a step. Below it you read in plain words what the AI would do there and what stays with your people. The shadow under the step shrinks.
  3. Read the result. The dark bar at the bottom shows the key figures; the full calculation with cost, return and a curve is below the departments.

Block colours show how you get it:

A dashed box means no building block exists yet.

Where AI helps most here

Start with what saves the most. Many blocks run on the same platform (e.g. one AI workplace for the office): you buy it once, and every further step only needs configuring.

Biggest single levers

    Packages: many steps in one go

      Estimate
      Software in usePlus: CAD/BIM such as Autodesk Revit, AutoCAD MEP, Nemetschek Allplan, LiNear or pds; calculation tools such as Hottgenroth, Solar-Computer, Dds-CAD, Trimble Nova; AVA such as California.pro, ORCA or Nevaris; project platforms such as BIM360, Docs or PlanRadar; HOAI and time tracking tools like Projektron or DDS

      The company from above

      Each building is a department. Its height shows how much work happens there, each window is a recurring task, and the shadow on the ground is the manual work. Click a building to open it. Windows light up where AI helps, and the shadow gets shorter.

      Front Office & AcquisitionPlanning & CalculationTendering & Site SupervisionBack OfficeIT, Quality & Compliance

      Front Office & Acquisition

      9 steps, 74 h per week

      Enquiry to proposal

      1. Read tender and enquiry documentsProject engineer h/week
      2. Search public tendersOffice h/week
      3. Calculate HOAI feeSenior engineer h/week
      4. Write proposal and cover letterProject engineer h/week

      Contract and project setup

      1. Review architect contractsManaging partner h/week
      2. Create project in systemOffice h/week

      Mail and phone

      1. Sort and answer project mailsAll engineers h/week
      2. File mails in project foldersOffice h/week
      3. Take calls and routeOffice h/week

      Your calculation

      Example calculation for orientation. Prices, hours and savings are estimates for a fictitious company, not an offer, a promise or advice. Your real figures depend on your processes, your software and the providers you choose.

      Insert building blocks or a package to see the calculation.

      The value is working time that becomes free for other work; it is not automatically lower wages. The curve counts the freed time from the first month on. All figures are rough estimates.

      Parts list for your selection

      BlockUsed inSavesValue per yearOne-offMonthlyDataRisk of failure

      Every row shows the amount that goes into your calculation; the rows add up to the totals. Blocks on a platform (AI workplace, automation, transcription, accounting AI, ...) only cost their configuration; the platform itself appears once with its rollout and its seats or base fee (prices researched 2026). Stand-alone solutions use the middle of the catalog price band, scaled to the size of the company.

      Assumptions and sources

      Fictitious but typical office: 2 managing partner engineers, 3 senior engineers, 7 project engineers, 4 CAD/BIM draftspeople, 1 energy consultant, 2 office staff, 1 bookkeeper part-time. Hours are rounded estimates for the whole office in a normal week, with no hard per-step study; the total is deliberately below full capacity because of leave, sickness, training and non-billable time. Site visits and meetings are marked no_ai because they require physical presence. Typical pain points in the sector are the lack of qualified TGA engineers, compressed schedules with many plan changes by architects, HOAI fees that cover little coordination effort, Hottgenroth/GEG demands, GoBD, DSGVO and liability for planning errors. No external study was used for the per-step figures; they are author estimates. Added after review: coordination with architects and trades, product selection and commissioning.

        Saved
        Value per year
        Investment
        Pays off after
        See the calculation