The site diary is mandatory in construction supervision (service phase 8 of the German HOAI, 'Leistungsphase 8') — and it eats your evenings. With Construction Diary you record daily reports in minutes on the go: weather, personnel, work performed, special occurrences. The finished report comes at the push of a button.
![Abstract illustration: daily report cards in a row like calendar pages, the front one with an orange bookmark tab [KI-BILD]](/_astro/hero-tagesberichte-hell.DWfkFy___ZCJsCV.webp)
Construction Diary is the digital site diary by Open Experience: daily reports are recorded on mobile on the construction site — companies present, headcount, work performed, obstructions, special occurrences. With Construction Weather, local readings from your own on-site weather station flow into the daily reports automatically, photos from Construction Photos are linked, and everyone involved is notified automatically. That way you fulfill the HOAI site diary duty (a basic service of the German fee structure for architects and engineers) without evening paperwork.
Dictate or tap in the daily report right on site — in minutes instead of after hours. Everything that must be documented (companies, personnel, work performed, occurrences) is walked through by the app in a structured way: nothing forgotten, nothing duplicated.
Simply speak the facts of the day into your smartphone — the AI assistant transfers them into your report template and writes a clear, professional text. AI texts are suggestions: you review and approve. No additional license costs — you store the API key of your preferred AI provider.
![Site manager dictating his daily report into a smartphone on the construction site [KI-BILD]](/_astro/ki-einsprechen.BvvW2och_osFaH.webp)
With Construction Weather, local readings (wind, precipitation, frost, bad-weather days) flow into the daily reports automatically — your own measured data instead of "according to a weather report from somewhere in the region": in disputes over obstructions and construction time, often the decisive detail.
Finished daily reports as PDF, automatic notification of everyone involved, complete filing in the project. Contractors deliver their own daily reports too — via their free accounts.
„The free contractor accounts for defect completion notices and for creating daily reports are gladly used.“
Works together with: Construction Weather (automatic weather data), Construction Photos (images in the report), Construction Defects (occurrence → defect), Construction Time (construction sequence).
From the first mobile entry through approval workflows to the multi-day overall report. All features at a glance:
Yes — what matters is content, continuity and traceability, not the medium.
Customary entries are date, weather, companies present and headcount, work performed, deliveries, obstructions, instructions and special occurrences.
Construction Diary is part of our transparent packages — we publish all prices openly on our pricing page (/en/preise/).
Yes, role-based — contractors create their own daily reports via their free accounts.
Yes — mobile apps for iOS and Android with offline functionality.
Yes — dictate the information, and the AI assistant transfers it into your report template and writes it up professionally. AI texts are suggestions and are reviewed and approved by you. It uses the AI provider whose API key you store yourself (e.g. OpenAI or Anthropic) — with no additional license costs from Open Experience.
