14 April 2026 · 5 min read
Construction supervision for private building owners
What does a construction supervisor do, when is it worth hiring one, and which tasks can you handle yourself with the right app?
On your first major building project, you are making decisions worth €50,000–200,000 that you have likely never made before. Independent construction supervision exists for exactly that situation.
What a construction supervisor does
A construction supervisor is an independent professional – architect, building surveyor, or building physicist – who represents your interests exclusively. Not the contractor’s.
- Regular site visits for quality control
- Invoice and measurement review
- Defect documentation at handover
- Technical advice on building physics, soundproofing, moisture
When it is worth the cost
Rule of thumb
- New build or full renovation above €150,000–200,000
- No independent architect overseeing the build
- First-time building owner with limited technical background
Typical cost: 1–2 % of the build sum, or €100–150/h for individual site visits.
What you can handle yourself
- Regular site visits with a photo diary
- Systematic invoice management and payment tracking
- Defect documentation at handover
- Tracking warranty deadlines per trade
- Keeping written records of verbal agreements
The digital toolkit for self-supervising building owners
Invoices, defect reports, project diary, and warranty tracking in one app – free during beta.
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